15 results on '"Garcia-Montoto, Victor"'
Search Results
2. Bio-oil Inorganic Analysis:A Minireview of Current Trends, Challenges, and Future Perspectives
- Author
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Ruiz, Wladimir, Guillemant, Julie, Coniglio, Lucie, Rodgers, Ryan P., Christensen, Jan H., Garcia-Montoto, Victor, Verdier, Sylvain, Giusti, Pierre, Barrère-Mangote, Caroline, Bouyssiere, Brice, Ruiz, Wladimir, Guillemant, Julie, Coniglio, Lucie, Rodgers, Ryan P., Christensen, Jan H., Garcia-Montoto, Victor, Verdier, Sylvain, Giusti, Pierre, Barrère-Mangote, Caroline, and Bouyssiere, Brice
- Abstract
The analysis of the inorganic content of bio-oils has not been widely reported in the literature. In this work, the analytical methods employed for the quantification and speciation of inorganic species in bio-oils are summarized. Total inorganic analysis of bio-oils is commonly performed using inductively coupled plasma optical emission spectrometry and inductively coupled plasma mass spectrometry techniques; however, other quantitation techniques are compiled and discussed in this review. Additionally, the few studies that have recently been reported on the inorganic speciation of bio-oils by supercritical fluid chromatography–inductively coupled plasma mass spectrometry, gel permeation chromatography–inductively coupled plasma high-resolution mass spectrometry, and electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry are also addressed. Cumulatively, the reports suggest that the lack of standard analytical methods in the total inorganic analysis of bio-oils is a major contributor to inaccurate results. Thus, future research with analytical methodologies already applied in crude oils should be adapted to account for the unique bio-oil(s) matrix. Such a strategy offers a path toward more accurate inorganic speciation/quantitation of inorganics in bio-oils, which might be the key to the understanding of production problems, storage stability, and upgrading processes commonly encountered with such samples.
- Published
- 2023
3. Phosphorus speciation analysis of fatty-acid-based feedstocks and fast pyrolysis biocrudes via gel permeation chromatography inductively coupled plasma high-resolution mass spectrometry
- Author
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Garcia-Montoto, Victor, Verdier, Sylvain, Dayton, David, Mante, Ofei, Arnaudguilhem, Carine, Christensen, Jan, Bouyssière, Brice, Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and IT University of Copenhagen
- Subjects
NI ,CRUDE OILS ,[CHIM.ANAL]Chemical Sciences/Analytical chemistry ,SULFUR ,NICKEL COMPOUNDS ,VANADIUM ,FRACTIONS ,BIOMASS - Abstract
International audience; Renewable feedstocks, such as lignocelulosic fast pyrolysis oils and both vegetable oil and animal fats, are becoming a viable alternative to petroleum for producing high-quality renewable transportation fuels. However, the presence of phosphorus-containing compounds, mainly from phospholipids, in these renewable feedstocks is known to poison and deactivate hydrotreating catalysts during fuel production. In this work, gel permeation chromatography (GPC) combined with inductively coupled plasma highresolution mass spectrometry (ICP-HRMS) was used to analyze feedstocks including unprocessed soybean oil, animal fat, and pyrolysis oils from red oak and milorganite to identify phosphorus species. The results have shown the presence of a wide range of different phosphorous compounds among all the samples analysed in this work. The GPC-ICP-HRMS analyses of a vegetable oil and two animal fats have shown different fingerprints based on the molecular weight of each of the samples, highlighting the structural differences among their corresponding phosphorus-containing compounds. While the presence of low-molecular-weight species, such as phospholipids, was expected, several highmolecular-weight species (MW > 10 000 Da) have been found, suggesting that high-molecular-weight micelles or liposomes might have been formed due to the high concentration of phospholipids in these samples. Results obtained through the hydroxylation of a mix of phospholipids (asolectin) and its posterior GPC-ICP-HRMS agree with this hypothesis. With respect to the lignocellulosic catalytic fast pyrolysis oil samples, the GPC-ICP-HRMS results obtained suggest that either aggregation or polymerization reactions might have occurred during the pyrolysis process, yielding phosphoruscontaining compounds with an approximate molecular weight above 91 000 kDa. In addition, an aggregation phenomenom has been observed for those phosphorus species present within the fast pyrolysis oils after being stored for 3 months, especially for those pyrolysis oils contaning pre-processed feedstocks, such as milorganite.
- Published
- 2021
4. Indian mustard bioproducts dry-purification with natural adsorbents - A biorefinery for a green circular economy
- Author
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Rapp, Graeme, primary, Garcia-Montoto, Victor, additional, Bouyssiere, Brice, additional, Thiebaud-Roux, Sophie, additional, Montoya, Alejandro, additional, Trethowan, Richard, additional, Pratt, Peter, additional, Mozet, Kevin, additional, Portha, Jean-François, additional, and Coniglio, Lucie, additional
- Published
- 2021
- Full Text
- View/download PDF
5. Analyse de spéciation des matières premières renouvelables et fractions de pétrole lourd
- Author
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Garcia-Montoto, Victor, Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Pau et des Pays de l'Adour, and Brice Bouyssière
- Subjects
GPC-ICP-MS ,Unconventional oils ,[CHIM.ANAL]Chemical Sciences/Analytical chemistry ,Analyse de spéciation ,Chimie analytique ,ICP-MS ,Matières premières renouvelables ,ETV-ICP-OES ,Renewable feedstocks ,Huiles non conventionnelles ,SFC-ICP-MS ,Speciation Analysis ,Analytical Chemistry - Abstract
Denne PhD afhandling anvender forskellige analytiske metoder til specieringsanalyse af vedvarende råmaterialer og petroleumstunge oliefraktioner. I afhandlingen anvendes separationsteknikker som gel permeations kromatografi (GPC) og superkritisk væskekromatografi (SFC) i kombination med detektion af elementer somved induktiv koblet plasma-højopløsningsmassespektrometri (ICP-MS). Metoderne anvendes til at måle det kemiske fingeraftryk af specier i komplekse matricer , baseret på speciernes hydrodynamiske volumen. Kombinationen af kromatografiske separationsteknikker med ICP-MS var ikke en let opgave.For at opnå en forbedre analyse af komplekse matricer blev der udviklet en række nye forbedrede metoder til specifikationsanalysen af komplekse prøver: (1) en billig alternativ til den nuværende ”total consumption nebuliser” blev udviklet og valideret til sporstof anlayse i organiske matricer via GPC-ICP-MS. Den nye nebuliser blev produceret ved 3D print af PEEK materiale; (2) et nyt interface blev designet og optimeret til sporelementanalyse ved SFC-ICP-MS. Selvom der er opnået meget lovende resultater, skal yderligere eksperimenter udføres med disse to metoder for at opnå en bedre forståelse af specierne som er tilstede i vedvarende råmaterialer og bioolier.Størrelsesfordelingen af svovl-, nikkel- og vanadiumspecier i atmosfæriske restfraktioner er opnået via GPC-ICP-HRMS-analyser for at spore og forstå deres udvikling under to vigtigeindustrielle processer, der er designet til at omdanne ukonventionelle olier til transportbrændstof: hydrodemetallization og afsvovling.Endvidere er størrelsesfordelingen af forfor-, natrium-, jern-, magnesium- og svovlholdige specier målt i lignocellulosiske pyrolyseolier og fedtsyreholdige-råmaterialer. Disse resultater viser, at der dannes højmolekylære aggregater i disse komplekse prøver, når de opbevares ved normale forhold.Alternative metoder til analyse af vedvarende råmaterialer er blevet testet. Der blev opnået lovende resultater ved anvendelsen af elektrotermisk fordampning koblet til induktivt koblet plasmaoptisk emissionsspektroskopi (ETV-ICP-OES). En ETV-ICP-OES metode som ikke kræver anvendelse af freon-12-gas, er blevet optimeret og valideret til analyse af summen af otte sporstoffer i komplekse prøver. Metoden blev anvendt til analyse af sammensætningen af P, Na, Mg og Al specier baseret bl.a. på deres fordampningstemperaturer.; This thesis incorporates the application of several analytical methodologies to the speciation analysis of renewable feedstocks and petroleum heavy oil fractions. Separation techniques such as gel permeation chromatography (GPC) and supercritical fluid chromatography (SFC) have been combinedwith the elemental detection that inductively coupled plasma mass spectrometry (ICP-MS) provides to obtain a fingerprint of those species of interest, based on their hydrodynamic volume, present in samples with complex matrices. However, the combination of these separation techniques with ICP-MS was not an easy task.With the purpose of providing to the analytical chemistry platform with novel approaches for the speciation analysis of complex samples, two novel tools have been devised during this three-year’s project: (1) a cheap alternative to the current total consumption nebulisers, produced via 3D-printing and whose capillary has been built in PEEK, has been developed and validated for the analysis of trace elements in organic matrices via GPC-ICP-MS and (2) a novel interface has been designed and optimised for the trace element analysis via SFC-ICP-MS. Although very promising results have been obtained, further experiments must be carried out with these two methodologies to obtain a better understanding of the inorganic species present in renewable feedstocks and bio-oils.The size distribution of sulfur, nickel and vanadium species in atmospheric residue fractions has been obtained via GPC-ICP-HRMS analyses to track and understand their evolution during two important industrial processes that are destined to convert these heavy oils into transportation fuels: hydrodemetallization and hydrodesulfurization. Furthermore, the phosphorus-, sodium-, iron-, magnesium- and sulfur-containing species’ size distributions in lignocellulosic fast pyrolysis oils and fatty acid feedstocks have been also obtained, demonstrating that high-molecular aggregates are formed within these complex samples when they are stored.Alternative methodologies for the analysis of renewable feedstocks have been tested. The use of electrothermal vaporisation coupled to inductively coupled plasma optical emission spectroscopy (ETV-ICP-OES) has provided with highly promising results. A methodology that does not require the use of freon-R12 gas has been optimised and validated for the total analysis of eight trace elements in complex samples. Besides, the distribution of the species containing trace elements such as P, Na, Mg and Al among others, based on their vaporisation temperatures, has been obtained.; Ce manuscrit de thèse intègre l'application de plusieurs méthodologies analytiques à l'analyse de spéciation des matières premières renouvelables et des fractions de pétrole lourd. Des techniques de séparation telles que la chromatographie par perméation de gel (GPC) et la chromatographie en phase liquide supercritique (SFC) ont été combinées avec la détection élémentaire fournie par la spectrométrie de masse haute résolution à plasma à couplage inductif (ICP-MS), afin d'obtenir une empreinte digitale de ces espèces d’intérêt, basé sur leur volume hydrodynamique, présent dans les échantillons à matrices complexes.La combinaison de ces techniques de séparation avec l’ICP-MS n'a pas été une tâche facile. Cependant, afin de fournir à la plate-forme de chimie analytique de nouvelles solutions pour l'analyse de spéciation d'échantillons complexes (1), une alternative bon marché aux nébuliseurs à consommation totale actuelle, produite via l'impression 3D et dont le capillaire a été construit en PEEK, a été développé et validé pour l'analyse des éléments trace dans les matrices organiques via GPC-ICP-MS et (2) une nouvelle interface a été conçue et optimisée pour l'analyse des éléments trace via SFC-ICP-MS. Bien que des résultats très prometteurs aient été obtenus, de nouvelles expérimentations doivent être menées avec ces deux méthodologies afin de mieux comprendre les espèces inorganiques présentes dans les matières premières renouvelables et les bio-huiles.La distribution en taille des espèces de soufre, de nickel et de vanadium dans les fractions de résidus atmosphériques a été obtenue via des analyses GPC-ICP-HRMS afin de suivre et de comprendre leur évolution au cours de deux processus industriels importants destinés à convertir ces fractions de pétrole lourd en carburants de transport: l'hydrodémétallisation et l'hydrodésulfuration. En outre, les distributions de tailles des espèces contenant du phosphore, du sodium, du fer, du magnésium et du soufre dans les huiles de pyrolyse lignocellulosique et les charges d'acide gras ont également été obtenues, démontrant que des agrégats de haut poids moléculaire se forment dans ces échantillons complexes lorsqu'ils sont stockés.Des méthodologies alternatives pour l'analyse des matières premières renouvelables ont été testées. L'utilisation de la vaporisation électrothermique couplée à la spectroscopie d'émission optique à plasma à couplage inductif (ETV-ICP-MS) a fourni des résultats très prometteurs. Une méthodologie qui ne nécessite pas l'utilisation de gaz fréon-R12 a été optimisée et validée pour l'analyse totale de huit éléments trace dans des échantillons complexes. De plus, la répartition des espèces contenant des éléments trace tels que P, Na, Mg et Al entre autres, en fonction de leurs températures de vaporisation, a été obtenue.
- Published
- 2020
6. Speciation analysis in renewable feedstocks and petroleum heavy oil fractions
- Author
-
Garcia-Montoto, Victor, Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Pau et des Pays de l'Adour, and Brice Bouyssière
- Subjects
GPC-ICP-MS ,Unconventional oils ,[CHIM.ANAL]Chemical Sciences/Analytical chemistry ,Analyse de spéciation ,Chimie analytique ,ICP-MS ,Matières premières renouvelables ,ETV-ICP-OES ,Renewable feedstocks ,Huiles non conventionnelles ,SFC-ICP-MS ,Speciation Analysis ,Analytical Chemistry - Abstract
Denne PhD afhandling anvender forskellige analytiske metoder til specieringsanalyse af vedvarende råmaterialer og petroleumstunge oliefraktioner. I afhandlingen anvendes separationsteknikker som gel permeations kromatografi (GPC) og superkritisk væskekromatografi (SFC) i kombination med detektion af elementer somved induktiv koblet plasma-højopløsningsmassespektrometri (ICP-MS). Metoderne anvendes til at måle det kemiske fingeraftryk af specier i komplekse matricer , baseret på speciernes hydrodynamiske volumen. Kombinationen af kromatografiske separationsteknikker med ICP-MS var ikke en let opgave.For at opnå en forbedre analyse af komplekse matricer blev der udviklet en række nye forbedrede metoder til specifikationsanalysen af komplekse prøver: (1) en billig alternativ til den nuværende ”total consumption nebuliser” blev udviklet og valideret til sporstof anlayse i organiske matricer via GPC-ICP-MS. Den nye nebuliser blev produceret ved 3D print af PEEK materiale; (2) et nyt interface blev designet og optimeret til sporelementanalyse ved SFC-ICP-MS. Selvom der er opnået meget lovende resultater, skal yderligere eksperimenter udføres med disse to metoder for at opnå en bedre forståelse af specierne som er tilstede i vedvarende råmaterialer og bioolier.Størrelsesfordelingen af svovl-, nikkel- og vanadiumspecier i atmosfæriske restfraktioner er opnået via GPC-ICP-HRMS-analyser for at spore og forstå deres udvikling under to vigtigeindustrielle processer, der er designet til at omdanne ukonventionelle olier til transportbrændstof: hydrodemetallization og afsvovling.Endvidere er størrelsesfordelingen af forfor-, natrium-, jern-, magnesium- og svovlholdige specier målt i lignocellulosiske pyrolyseolier og fedtsyreholdige-råmaterialer. Disse resultater viser, at der dannes højmolekylære aggregater i disse komplekse prøver, når de opbevares ved normale forhold.Alternative metoder til analyse af vedvarende råmaterialer er blevet testet. Der blev opnået lovende resultater ved anvendelsen af elektrotermisk fordampning koblet til induktivt koblet plasmaoptisk emissionsspektroskopi (ETV-ICP-OES). En ETV-ICP-OES metode som ikke kræver anvendelse af freon-12-gas, er blevet optimeret og valideret til analyse af summen af otte sporstoffer i komplekse prøver. Metoden blev anvendt til analyse af sammensætningen af P, Na, Mg og Al specier baseret bl.a. på deres fordampningstemperaturer.; This thesis incorporates the application of several analytical methodologies to the speciation analysis of renewable feedstocks and petroleum heavy oil fractions. Separation techniques such as gel permeation chromatography (GPC) and supercritical fluid chromatography (SFC) have been combinedwith the elemental detection that inductively coupled plasma mass spectrometry (ICP-MS) provides to obtain a fingerprint of those species of interest, based on their hydrodynamic volume, present in samples with complex matrices. However, the combination of these separation techniques with ICP-MS was not an easy task.With the purpose of providing to the analytical chemistry platform with novel approaches for the speciation analysis of complex samples, two novel tools have been devised during this three-year’s project: (1) a cheap alternative to the current total consumption nebulisers, produced via 3D-printing and whose capillary has been built in PEEK, has been developed and validated for the analysis of trace elements in organic matrices via GPC-ICP-MS and (2) a novel interface has been designed and optimised for the trace element analysis via SFC-ICP-MS. Although very promising results have been obtained, further experiments must be carried out with these two methodologies to obtain a better understanding of the inorganic species present in renewable feedstocks and bio-oils.The size distribution of sulfur, nickel and vanadium species in atmospheric residue fractions has been obtained via GPC-ICP-HRMS analyses to track and understand their evolution during two important industrial processes that are destined to convert these heavy oils into transportation fuels: hydrodemetallization and hydrodesulfurization. Furthermore, the phosphorus-, sodium-, iron-, magnesium- and sulfur-containing species’ size distributions in lignocellulosic fast pyrolysis oils and fatty acid feedstocks have been also obtained, demonstrating that high-molecular aggregates are formed within these complex samples when they are stored.Alternative methodologies for the analysis of renewable feedstocks have been tested. The use of electrothermal vaporisation coupled to inductively coupled plasma optical emission spectroscopy (ETV-ICP-OES) has provided with highly promising results. A methodology that does not require the use of freon-R12 gas has been optimised and validated for the total analysis of eight trace elements in complex samples. Besides, the distribution of the species containing trace elements such as P, Na, Mg and Al among others, based on their vaporisation temperatures, has been obtained.; Ce manuscrit de thèse intègre l'application de plusieurs méthodologies analytiques à l'analyse de spéciation des matières premières renouvelables et des fractions de pétrole lourd. Des techniques de séparation telles que la chromatographie par perméation de gel (GPC) et la chromatographie en phase liquide supercritique (SFC) ont été combinées avec la détection élémentaire fournie par la spectrométrie de masse haute résolution à plasma à couplage inductif (ICP-MS), afin d'obtenir une empreinte digitale de ces espèces d’intérêt, basé sur leur volume hydrodynamique, présent dans les échantillons à matrices complexes.La combinaison de ces techniques de séparation avec l’ICP-MS n'a pas été une tâche facile. Cependant, afin de fournir à la plate-forme de chimie analytique de nouvelles solutions pour l'analyse de spéciation d'échantillons complexes (1), une alternative bon marché aux nébuliseurs à consommation totale actuelle, produite via l'impression 3D et dont le capillaire a été construit en PEEK, a été développé et validé pour l'analyse des éléments trace dans les matrices organiques via GPC-ICP-MS et (2) une nouvelle interface a été conçue et optimisée pour l'analyse des éléments trace via SFC-ICP-MS. Bien que des résultats très prometteurs aient été obtenus, de nouvelles expérimentations doivent être menées avec ces deux méthodologies afin de mieux comprendre les espèces inorganiques présentes dans les matières premières renouvelables et les bio-huiles.La distribution en taille des espèces de soufre, de nickel et de vanadium dans les fractions de résidus atmosphériques a été obtenue via des analyses GPC-ICP-HRMS afin de suivre et de comprendre leur évolution au cours de deux processus industriels importants destinés à convertir ces fractions de pétrole lourd en carburants de transport: l'hydrodémétallisation et l'hydrodésulfuration. En outre, les distributions de tailles des espèces contenant du phosphore, du sodium, du fer, du magnésium et du soufre dans les huiles de pyrolyse lignocellulosique et les charges d'acide gras ont également été obtenues, démontrant que des agrégats de haut poids moléculaire se forment dans ces échantillons complexes lorsqu'ils sont stockés.Des méthodologies alternatives pour l'analyse des matières premières renouvelables ont été testées. L'utilisation de la vaporisation électrothermique couplée à la spectroscopie d'émission optique à plasma à couplage inductif (ETV-ICP-MS) a fourni des résultats très prometteurs. Une méthodologie qui ne nécessite pas l'utilisation de gaz fréon-R12 a été optimisée et validée pour l'analyse totale de huit éléments trace dans des échantillons complexes. De plus, la répartition des espèces contenant des éléments trace tels que P, Na, Mg et Al entre autres, en fonction de leurs températures de vaporisation, a été obtenue.
- Published
- 2020
7. Hyphenating supercritical fluid chromatography and inductively coupled plasma mass spectrometry:a proof of concept
- Author
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Garcia-Montoto, Victor, Denti, Pablo, Malmquist, Linus M. V., Verdier, Sylvain, Bouyssiere, Brice, Christensen, Jan H., Garcia-Montoto, Victor, Denti, Pablo, Malmquist, Linus M. V., Verdier, Sylvain, Bouyssiere, Brice, and Christensen, Jan H.
- Abstract
The speciation analysis of complex mixtures of chemicals requires an efficient separation method and supercritical fluid chromatography (SFC) is one such technique that has been used for these purposes. Hyphenation of SFC to inductively coupled plasma mass spectrometry (ICP-MS) can provide elemental speciation information. However, the hyphenation of modern SFC instrumentation to ICP-MS has not yet been tested. The aim of this study was to develop a novel interface to hyphenate ICP-MS and modern HPLC-like SFC systems that enable the use of organic solvent gradients and packed columns. For this, an optimization of the most important parameters, such as SFC back pressure, gas temperature and position of the interface within the whole set up, was carried out, and quantitative analyses in flow injection analysis (FIA) mode of two biolubricants and one pyrolysis oil were accomplished, reaching DLs at the ppb level with the tested mobile phase compositions. In addition, in order to test the performance of this novel interface with real samples, chromatographic separation experiments of one pyrolysis oil and one coal tar using a 2-picolylamine column were carried out, confirming the stability of this new interface and its potential to become a powerful speciation technique in the future.
- Published
- 2020
8. 3D-printed total consumption microflow nebuliser development for trace element analysis in organic matrices via inductively coupled plasma mass spectrometry
- Author
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Garcia-Montoto, Victor, Mallet, Sylvain, Arnaudguilhem, Carine, Christensen, Jan H., Bouyssiere, Brice, Garcia-Montoto, Victor, Mallet, Sylvain, Arnaudguilhem, Carine, Christensen, Jan H., and Bouyssiere, Brice
- Abstract
A new total consumption micronebuliser for ICP-MS was developed and optimised in this work. This nebuliser, V64-01, which was built through 3D printing, contains a larger internal diameter than other total consumption micronebulisers, a silicon-free capillary that perfectly tolerates a flow up to 65 mu L min(-1)THF, and the chances of incurring obstructions or clogging during a prolonged period of analysis are reduced. In addition, its production costs are minimal. To validate this nebuliser, its most important parameters were optimised (carrier gas and liquid flow rates), and the quantitative analysis of an SRM sample was carried out successfully. Calibration curves with great linearities (r(2)> 0.999) and detection limits between 0.84 and 2.85 ng g(-1)were obtained for the analysis of 10 elements. In addition, GPC-ICP-MS chromatograms of the size distribution of V and Ni species in a reference crude oil sample were obtained, showing the same profile as with the previous nebulisers but also suggesting that, for some species of V and Ni in crude oil, permanent retention might have occurred within the fused silica capillary that connects the DS-5 total consumption micronebuliser with the HPLC system. This new 3D-printed total consumption nebuliser possesses the potential to become a good consumable that will allow for total and speciation analysis of numerous trace elements, such as Si, that, until now, due to either interactions with silica or interferences, were not possible to analyse.
- Published
- 2020
9. Understanding the removal of V, Ni and S in crude oil atmospheric residue hydrodemetallization and hydrodesulfurization
- Author
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Garcia-Montoto, Victor, Verdier, Sylvain, Maroun, Zeina, Egeberg, Rasmus, Tiedje, Joan L., Sandersen, Sara, Zeuthen, Per, Bouyssiere, Brice, Garcia-Montoto, Victor, Verdier, Sylvain, Maroun, Zeina, Egeberg, Rasmus, Tiedje, Joan L., Sandersen, Sara, Zeuthen, Per, and Bouyssiere, Brice
- Abstract
This study describes the use of gel permeation chromatography inductively coupled plasma high-resolution mass spectrometry (GPC ICP HRMS) to examine and explain two important petroleum industry catalytic processes: hydrodemetallization (HDM) and hydrodesulfurization (HDS).The sulfur, nickel and vanadium species size distributions in atmospheric residue fractions were studied to track their evolution during both catalytic processes and examine their mechanisms, especially those mechanisms linked to changes in temperature and initial deactivation via coke laydown. Chromatogram shapes as well as peak areas were used to study the V, Ni and S aggregate types and concentrations in the feedstock as well as in the product after varying the operating temperature and residence time at a constant temperature. For the V and Ni compounds, the low and medium molecular weight (LMW and MMW, respectively) aggregates are easily hydrotreated under all conditions, while the high molecular weight (HMW) compounds are more refractory. For the S compounds, a different reactivity pattern was observed whereby the LMW, MMW and HMW aggregates were more similar in their reactivity, showing that the catalyst is less selective towards a certain aggregate size for the S compounds compared to the V or Ni compounds.
- Published
- 2020
10. Understanding the removal of V, Ni and S in crude oil atmospheric residue hydrodemetallization and hydrodesulfurization
- Author
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Garcia-Montoto, Victor, primary, Verdier, Sylvain, additional, Maroun, Zeina, additional, Egeberg, Rasmus, additional, Tiedje, Joan L., additional, Sandersen, Sara, additional, Zeuthen, Per, additional, and Bouyssiere, Brice, additional
- Published
- 2020
- Full Text
- View/download PDF
11. 3D-printed total consumption microflow nebuliser development for trace element analysis in organic matrices via inductively coupled plasma mass spectrometry
- Author
-
Garcia-Montoto, Victor, primary, Mallet, Sylvain, additional, Arnaudguilhem, Carine, additional, Christensen, Jan H., additional, and Bouyssiere, Brice, additional
- Published
- 2020
- Full Text
- View/download PDF
12. Hyphenating supercritical fluid chromatography and inductively coupled plasma mass spectrometry: a proof of concept
- Author
-
Garcia-Montoto, Victor, primary, Denti, Pablo, additional, Malmquist, Linus M. V., additional, Verdier, Sylvain, additional, Bouyssiere, Brice, additional, and Christensen, Jan H., additional
- Published
- 2020
- Full Text
- View/download PDF
13. Simplification of Heavy Matrices by Liquid–Liquid Extraction: Part I—How to Separate LMW, MMW, and HMW Compounds in Maltene Fractions of V, Ni, and S Compounds
- Author
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Gascon, German, primary, Negrin, Juan, additional, Garcia-Montoto, Victor, additional, Acevedo, Socrates, additional, Lienemann, Charles-Philippe, additional, and Bouyssiere, Brice, additional
- Published
- 2019
- Full Text
- View/download PDF
14. Simplification of Heavy Matrices by Liquid–Liquid Extraction: Part IHow to Separate LMW, MMW, and HMW Compounds in Maltene Fractions of V, Ni, and S Compounds.
- Author
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Gascon, German, Negrin, Juan, Garcia-Montoto, Victor, Acevedo, Socrates, Lienemann, Charles-Philippe, and Bouyssiere, Brice
- Published
- 2019
- Full Text
- View/download PDF
15. Phosphorus speciation analysis of fatty-acid-based feedstocks and fast pyrolysis biocrudes via gel permeation chromatography inductively coupled plasma high-resolution mass spectrometry.
- Author
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Garcia-Montoto V, Verdier S, Dayton DC, Mante O, Arnaudguilhem C, Christensen JH, and Bouyssiere B
- Abstract
Renewable feedstocks, such as lignocelulosic fast pyrolysis oils and both vegetable oil and animal fats, are becoming a viable alternative to petroleum for producing high-quality renewable transportation fuels. However, the presence of phosphorus-containing compounds, mainly from phospholipids, in these renewable feedstocks is known to poison and deactivate hydrotreating catalysts during fuel production. In this work, gel permeation chromatography (GPC) combined with inductively coupled plasma high-resolution mass spectrometry (ICP-HRMS) was used to analyze feedstocks including unprocessed soybean oil, animal fat, and pyrolysis oils from red oak and milorganite to identify phosphorus species. The results have shown the presence of a wide range of different phosphorous compounds among all the samples analysed in this work. The GPC-ICP-HRMS analyses of a vegetable oil and two animal fats have shown different fingerprints based on the molecular weight of each of the samples, highlighting the structural differences among their corresponding phosphorus-containing compounds. While the presence of low-molecular-weight species, such as phospholipids, was expected, several high-molecular-weight species (MW > 10 000 Da) have been found, suggesting that high-molecular-weight micelles or liposomes might have been formed due to the high concentration of phospholipids in these samples. Results obtained through the hydroxylation of a mix of phospholipids (asolectin) and its posterior GPC-ICP-HRMS agree with this hypothesis. With respect to the lignocellulosic catalytic fast pyrolysis oil samples, the GPC-ICP-HRMS results obtained suggest that either aggregation or polymerization reactions might have occurred during the pyrolysis process, yielding phosphorus-containing compounds with an approximate molecular weight above 91 000 kDa. In addition, an aggregation phenomenom has been observed for those phosphorus species present within the fast pyrolysis oils after being stored for 3 months, especially for those pyrolysis oils contaning pre-processed feedstocks, such as milorganite., Competing Interests: There are no conflicts to declare., (This journal is © The Royal Society of Chemistry.)
- Published
- 2021
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