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26 results on '"Kiatphuengporn, Sirapassorn"'

2. Integrated experimental and theoretical studies for unravelling CO2 capture of dual function CeO2-CaO bio-based sorbents

Author

Phanthasri, Jakkapop, Saelee, Tinnakorn, Sosa, Narongrit, Youngjan, Saran, Samart, Nuttaporn, Rittiruam, Meena, Khajondetchairit, Patcharaporn, Chomchin, Suchittraporn, Chankhanittha, Tammanoon, Prasitnok, Khongvit, Kiatphuengporn, Sirapassorn, Chareonpanich, Metta, Chanlek, Narong, Nijpanich, Supinya, Kidkhunthod, Pinit, Praserthdam, Piyasan, Praserthdam, Supareak, and Khemthong, Pongtanawat

Published
2024
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15. Effect of CoMo metal loading on H2 and CNTs production from biogas by integrative process

Author

Aieamsam-Aung, Pichawee, primary, Nantapong, Paveenuch, additional, Rattanaamonkulchai, Raminda, additional, Kludpantanapan, Thunyathon, additional, Srifa, Atthapon, additional, Koo-Amornpattana, Wanida, additional, Sakdaronnarong, Chularat, additional, Suchamalawong, Phorndranrat, additional, Reubroycharoen, Prasert, additional, Kiatphuengporn, Sirapassorn, additional, Charinpanitkul, Tawatchai, additional, Assabumrungrat, Suttichai, additional, Wongsakulphasatch, Suwimol, additional, Eiad-ua, Apiluck, additional, Watanabe, Ryo, additional, Fukuhara, Choji, additional, and Ratchahat, Sakhon, additional

Published
2022
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17. Simultaneous production of hydrogen and carbon nanotubes from biogas: On the design of combined process

Author

Rattanaamonkulchai, Raminda, primary, Kludpantanapan, Thunyathon, additional, Nantapong, Paveenuch, additional, Srifa, Atthapon, additional, Koo-Amornpattana, Wanida, additional, Chaiwat, Weerawut, additional, Sakdaronnarong, Chularat, additional, Kiatphuengporn, Sirapassorn, additional, Charinpanitkul, Tawatchai, additional, Assabumrungrat, Suttichai, additional, Wongsakulphasatch, Suwimol, additional, Eiad-ua, Apiluck, additional, Sudoh, Masao, additional, Watanabe, Ryo, additional, Fukuhara, Choji, additional, and Ratchahat, Sakhon, additional

Published
2022
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18. Natural Kaolin-Based Ni Catalysts for CO2 Methanation: On the Effect of Ce Enhancement and Microwave-Assisted Hydrothermal Synthesis

Author

Aimdate, Kritchakorn, primary, Srifa, Atthapon, additional, Koo-amornpattana, Wanida, additional, Sakdaronnarong, Chularat, additional, Klysubun, Wantana, additional, Kiatphuengporn, Sirapassorn, additional, Assabumrungrat, Suttichai, additional, Wongsakulphasatch, Suwimol, additional, Kaveevivitchai, Watchareeya, additional, Sudoh, Masao, additional, Watanabe, Ryo, additional, Fukuhara, Choji, additional, and Ratchahat, Sakhon, additional

Published
2021
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19. Application of magnetic field to CO hydrogenation using a confined-space catalyst: effect on reactant gas diffusivity and reactivity

Author

Donphai, Waleeporn, primary, Kunthakudee, Naphaphan, additional, Munpollasri, Sirapat, additional, Sangteantong, Pariyawalee, additional, Tonlublao, Surangrat, additional, Limphirat, Wanwisa, additional, Poo-arporn, Yingyot, additional, Kiatphuengporn, Sirapassorn, additional, and Chareonpanich, Metta, additional

Published
2021
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20. Roles of acidic sites in alumina catalysts for efficient d-xylose conversion to lactic acid

Author

Kiatphuengporn, Sirapassorn, primary, Junkaew, Anchalee, additional, Luadthong, Chuleeporn, additional, Thongratkaew, Sutarat, additional, Yimsukanan, Chakrit, additional, Songtawee, Siripit, additional, Butburee, Teera, additional, Khemthong, Pongtanawat, additional, Namuangruk, Supawadee, additional, Kunaseth, Manaschai, additional, and Faungnawakij, Kajornsak, additional

Published
2020
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21. METHANE DRY REFORMING OVER MONTMORILLONITE SURFACE MODIFICATION SUPPORTED NICKEL CATALYST

Author

Chaisamphao, Juthasiri, Kiatphuengporn, Sirapassorn, Faungnawakij, Kajornsak, Donphai, Waleeporn, Chaisamphao, Juthasiri, Kiatphuengporn, Sirapassorn, Faungnawakij, Kajornsak, and Donphai, Waleeporn

Abstract

Dry reforming of methane has been taken an interest in research and development for converting greenhouse gases (CH4 and CO2) into hydrogen (H2) and carbon monoxide (CO). Clay has been considered as promising materials because of their structure, low cost and wide availability. Different surface modifications of clay directly affect the performance of catalyst in term of CH4 and CO2 conversion. This research studied nickel loaded on montmorillonite (MMT) clay support with different surface modifications on the activity in dry reforming of methane in fixed-bed reactor with reactant gases flow rate of 60 ml/min (CH4:CO2 of 1) at reaction temperature ranges of 500 – 800°C. Montmorillonite clay support with different surface modifications including trimethyl stearyl ammonium (MMT-TSA), dimethyl dialkyl amine (MMT-DDA), methyl dihydroxy-ethyl hydrogenated tallow ammonium (MMT-MDA) and aminopropyltriethoxysilan and octadecylamine (MMT-AO) were investigated. As the results, the performances of all catalysts increased with increasing reaction temperature because this reaction is endothermic reaction. Among them, Ni/MMT-TSA catalyst exhibited the highest CH4 and CO2 conversions at all reaction temperatures due to its high surface area, and high metallic surface area.

Published
2019

23. Integrated experimental and theoretical studies for unravelling CO2capture of dual function CeO2-CaO bio-based sorbents

Author

Phanthasri, Jakkapop, Saelee, Tinnakorn, Sosa, Narongrit, Youngjan, Saran, Samart, Nuttaporn, Rittiruam, Meena, Khajondetchairit, Patcharaporn, Chomchin, Suchittraporn, Chankhanittha, Tammanoon, Prasitnok, Khongvit, Kiatphuengporn, Sirapassorn, Chareonpanich, Metta, Chanlek, Narong, Nijpanich, Supinya, Kidkhunthod, Pinit, Praserthdam, Piyasan, Praserthdam, Supareak, and Khemthong, Pongtanawat

Abstract

Solid CaO-based sorbents for CO2capture represent a promising alternative technology compared to traditional amine scrubbing methods. However, CaO-based sorbents are rapidly sinter and easily decrease CO2uptake capacity with regenerated carbonation–calcination cycle. Thus, in this study, doping CaO with CeO2make it an excellent candidate for improving stability and facilitating CO2capture efficiency. The dual function of CaO bio-based sorbents with varying ratios of cerium (Ce) were derived from naturally occurring blood clam using the gel-combustion method. Their nanostructures and physicochemical properties were characterized through the specific methods, including in situXAS, CO2chemisorption and physisorption, XPS, XRD, and SEM. An in-depth understanding of CO2adsorption mechanism was further emphasized using a density functional theory (DFT) simulation. The results demonstrate that nanosized CeO2-CaO, with a mole ratio of 1:9, exhibited the highest performance for CO2capture (6.44 mmol CO2/g sorbent). It is postulated that Ce serves as a physical barrier, effectively partitioning adjacent CaO grains and thereby diminishing the sintering rate. CaO is identified as the primary adsorption site, in contrast to CeO2. Mixing the Ce-Ca dual oxide initiates the electron-rich O at the O’ site. The electron localization at the O’ active site improves the activity of O’, making the performance CeCa(200) for capturing CO2capture dominant. This discovery suggests that CeO2-CaO holds promise as a sustainable alternative sorbent for future CO2capture applications.

Published
2024
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25. Effect of unimodal and bimodal MCM-41 mesoporous silica supports on activity of Fe–Cu catalysts for CO2 hydrogenation.

Author

Kiatphuengporn, Sirapassorn, Chareonpanich, Metta, and Limtrakul, Jumras

Subjects
*MESOPOROUS materials, *SILICA, *CATALYST supports, *IRON catalysts, *COPPER catalysts, *CARBON dioxide, *HYDROGENATION
Abstract

Highlights: [•] Bimodal MCM-41 silica support was successfully synthesized by using TEOS (T). [•] Fe–Cu loaded on unimodal and bimodal supports were tested for CO2 hydrogenation. [•] The existence of larger mesopore could greatly improve the catalytic performance. [•] 3Fe–10Cu/MCM-41 (T) was highly active and selective to alcohols at low temperature. [Copyright &y& Elsevier]

Published
2014
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26. Natural Kaolin-Based Ni Catalysts for CO 2 Methanation: On the Effect of Ce Enhancement and Microwave-Assisted Hydrothermal Synthesis.

Author

Aimdate K, Srifa A, Koo-Amornpattana W, Sakdaronnarong C, Klysubun W, Kiatphuengporn S, Assabumrungrat S, Wongsakulphasatch S, Kaveevivitchai W, Sudoh M, Watanabe R, Fukuhara C, and Ratchahat S

Abstract

Natural kaolin-based Ni catalysts have been developed for low-temperature CO 2 methanation. The catalysts were prepared via a one-step co-impregnation of Ni and Ce onto a natural kaolin-derived metakaolin using a microwave-assisted hydrothermal method as an acid-/base-free synthesis method. The influences of microwave irradiation and Ce promotion on the catalytic enhancement including the CO 2 conversion, CH 4 selectivity, and CH 4 yield were experimentally investigated by a catalytic test of as-prepared catalysts in a fixed-bed tubular reactor. The relationship between the catalyst properties and its methanation activities was revealed by various characterization techniques including X-ray fluorescence, X-ray diffraction, Brunauer-Emmett-Teller, scanning electron microscopy, selected area electron diffraction, transmission electron microscopy, elemental mapping, H 2 temperature-programmed reduction, and X-ray absorption near-edge structure analyses. Among the two enhancement methods, microwave and Ce promotion, the microwave-assisted synthesis could produce a catalyst containing highly dispersed Ni particles with a smaller Ni crystallite size and higher catalyst reducibility, resulting in a higher CO 2 conversion from 1.6 to 7.5% and a better CH 4 selectivity from 76.3 to 79.9% at 300 °C. Meanwhile, the enhancement by Ce addition exhibited a great improvement on the catalyst activities. It was experimentally found that the CO 2 conversion increased approximately 7-fold from 7.5 to 52.9%, while the CH 4 selectivity significantly improved from 79.9 to 98.0% at 300 °C. Though the microwave-assisted synthesis could further improve the catalyst activities of Ce-promoted catalysts, the Ce addition exhibited a more prominent impact than the microwave enhancement. Cerium oxide (CeO 2 ) improved the catalyst activities through mechanisms of higher CO 2 adsorption capacity with its basic sites and the unique structure of CeO 2 with a reversible valence change of Ce 4+ and Ce 3+ and high oxygen vacancies. However, it was found that the catalyst prepared by microwave-assisted synthesis and Ce promotion proved to be the optimum catalyst in this study. Therefore, the present work demonstrated the potential to synthesize a nickel-based catalyst with improved catalytic activities by adding a small amount of Ce as a catalytic promoter and employing microwave irradiation for improving the Ni dispersion., Competing Interests: The authors declare no competing financial interest., (© 2021 The Authors. Published by American Chemical Society.)

Published
2021
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