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28 results on '"Leibold, Hans"'

11. Starve to Sustain—An Ancient Syrian Landrace of Sorghum as Tool for Phosphorous Bio-Economy?

Author

Kanbar, Adnan, primary, Mirzai, Madeleine, additional, Abuslima, Eman, additional, Flubacher, Noemi, additional, Eghbalian, Rose, additional, Garbev, Krassimir, additional, Bergfeldt, Britta, additional, Ullrich, Angela, additional, Leibold, Hans, additional, Eiche, Elisabeth, additional, Müller, Mario, additional, Mokry, Markus, additional, Stapf, Dieter, additional, and Nick, Peter, additional

Published
2021
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14. Development of a new highly efficient and fuel flexible medium-scale CHP technology based on fixed-bed updraft biomass gasification and a SOFC

Author

Brunner, Thomas, Biedermann, Friedrich, Obernberger, Ingwald, Hirscher, Simon, Schöch, Martin, Milito, Claudio, Leibold, Hans, Sitzmann, Jürgen, Megel, Stefan, Hauth, Martin, Vos, Yves de, Götz, Thomas, She, Li, Corona, Blanca, Brunner, Thomas, Biedermann, Friedrich, Obernberger, Ingwald, Hirscher, Simon, Schöch, Martin, Milito, Claudio, Leibold, Hans, Sitzmann, Jürgen, Megel, Stefan, Hauth, Martin, Vos, Yves de, Götz, Thomas, She, Li, and Corona, Blanca

Published
2018

17. Cover Image, Volume 6, Issue 3

Author

Dahmen, Nicolaus, primary, Abeln, Johannes, additional, Eberhard, Mark, additional, Kolb, Thomas, additional, Leibold, Hans, additional, Sauer, Jörg, additional, Stapf, Dieter, additional, and Zimmerlin, Bernd, additional

Published
2017
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22. The bioliq process for producing synthetic transportation fuels.

Author

Dahmen, Nicolaus, Abeln, Johannes, Eberhard, Mark, Kolb, Thomas, Leibold, Hans, Sauer, Jörg, Stapf, Dieter, and Zimmerlin, Bernd

Subjects
SYNTHETIC fuel manufacturing, FOSSIL fuels, LIGNOCELLULOSE
Abstract

Biofuels of the second generation can contribute significantly to the replacement of the currently used fossil energy carriers for transportation fuel production. The lignocellulosic biomass residues used do not compete with food and feed production, but have to be collected from wide-spread areas for industrial large-scale use. The two-stage gasification concept bioliq offers a solution to this problem. It aims at the conversion of low-grade residual biomass from agriculture and forestry into synthetic fuels and chemicals. Central element of the bioliq process development is the 2-5 MW pilot plant along the complete process chain: fast pyrolysis for pretreatment of biomass to obtain an energy dense, liquid intermediate fuel, high-pressure entrained flow gasification providing low methane synthesis gas free of tar, hot synthesis gas cleaning to separate acid gases, and contaminants as well as methanol/dimethyl ether and subsequent following gasoline synthesis. After construction and commissioning of the individual process steps with partners from industry, first production of synthetic fuel was successfully achieved in 2014. In addition to pilot plant operation for technology demonstration, a research and development network has been established providing the scientific basis for optimization and further development of the bioliq process as well as to explore new applications of the technologies and products involved. WIREs Energy Environ 2017, 6:e236. doi: 10.1002/wene.236 For further resources related to this article, please visit the . [ABSTRACT FROM AUTHOR]

Published
2017
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26. Total oxidation of carbon monoxide, VOC and reduction of NO2with catalytic ceramic filter media

Author

Straczewski, Grazyna, Vargas, Camila, Zampieri, Ariana, Garbev, Krassimir, Leibold, Hans, and Dahmen, Nicolaus

Abstract

•Preparation of the catalytic ceramic filter material for CO, VOC oxidation and NO2reduction.•Assessment and characterization of the catalyst crystal structures in the catalytic ceramic fiber filter material.•Assessment of the performance of the catalytic ceramic fiber filter material in terms of CO, VOC oxidation and NO2reduction.•Long-term activity of the catalytic filter material for CO oxidation.

Published
2021
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28. Recycling of polystyrene-based external thermal insulation composite systems – Application of combined mechanical and chemical recycling

Author

Niklas Netsch, Martin Simons, Alexander Feil, Hans Leibold, Frank Richter, Julia Slama, Savina Padumane Yogish, Kathrin Greiff, Dieter Stapf, Simons, Martin, RWTH Aachen, Feil, Alexander, RWTH Aachen, Leibold, Hans, Richter, Frank, Slama, Julia, Yogish, Savina Padumane, Greiff, Kathrin, RWTH Aachen, and Stapf, Dieter

Subjects
ETICS, Circular economy, Plastics recycling, ddc:620, Waste Management and Disposal, Pyrolysis, Engineering & allied operations, Gasification
Abstract

The material recycling of complex waste streams such as external thermal insulation composite systems (ETICS) is challenging, which is why their recycling in the sense of a circular economy is currently hardly established. Therefore, the combined mechanical and thermochemical recycling of ETICS based on expanded polystyrene (EPS) is investigated experimentally and by simulating full process chains in order to evaluate circular economy opportunities. Model ETICS as example for building and construction waste is pretreated mechanically, followed by either pyrolysis and / or gasification steps, and full mass and energy balances are derived. By the combined recycling, inorganic compounds can be separated to a large extent allowing a pre-concentrate generation. The plastic-rich pre-concentrate is converted into either pyrolysis oil with a high styrene monomer content of 51 wt% or to synthesis gas in the subsequent thermochemical conversions. The holistic approach enables a high carbon recycling rate between 53 and 68 wt%. In addition, the investigation reveals technology limitations and opportunities to be further developed and optimized.

Published
2022

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