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Kinetic and mechanistic investigation of catalytic alkaline thermal treatment of xylan producing high purity H-2 with in-situ carbon capture

Title
Kinetic and mechanistic investigation of catalytic alkaline thermal treatment of xylan producing high purity H-2 with in-situ carbon capture
Authors
Zhang, KangOuassil, NicholasCampo, Carlos Andres OrtizRim, GuanheKim, Woo-JaePark, Ah-Hyung Alissa
Ewha Authors
김우재
SCOPUS Author ID
김우재scopus
Issue Date
2020
Journal Title
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
ISSN
1226-086XJCR Link

1876-794XJCR Link
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY vol. 85, pp. 219 - 225
Keywords
HydrogenBiomassXylanAlkaline thermal treatmentBioEnergy with carbon capture and storageCO2 capture
Publisher
ELSEVIER SCIENCE INC
Indexed
SCIE; SCOPUS; KCI WOS scopus
Document Type
Article
Abstract
A novel biomass conversion pathway that integrates carbon capture and storage schemes has been investigated using hemicellulose as the biomass feedstock. The alkaline thermal treatment (ATT) produces high purity H-2 from biomass mixed with hydroxide and it can be considered as a bio-energy with carbon capture and storage (BECCS) technology, since the carbon in biomass becomes solid carbonates during the ATT reaction. In this study, in the presence of Ni catalyst, Group 1 and 2 hydroxides are employed to produce as high as 60 mmol H-2 (96.8% purity) from 1 gram of hemicellulose (xylan) feedstock with in situ carbon capture at mild conditions (i.e., atmospheric pressure and relatively low temperatures <= 773 K). Reaction pathways of hydrogen production in the ATT of hemicellulose are proposed via the investigation of the roles of each hydroxide and catalyst in the H-2 formation from hemicellulose. Along with the previous studies on glucose and cellulose, this research lays a foundation for future development of H-2 production from real biomass with carbon-neutral or possibly negative potential. (C) 2020 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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DOI
10.1016/j.jiec.2020.02.004
Appears in Collections:
엘텍공과대학 > 화학신소재공학전공 > Journal papers
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