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Open AccessFeature PaperArticle

Syngas Production from Combined Steam Gasification of Biochar and a Sorption-Enhanced Water–Gas Shift Reaction with the Utilization of CO2

1
Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand
2
Energy Research Institute, Chulalongkorn University, Phayathai Road, Wang Mai, Phatumwan, Bangkok 10330, Thailand
3
Department of Petrochemical and Environmental Engineering, Faculty of Engineering, Pathumwan Institute of Technology, Rama 1 Road, Wang Mai, Phatumwan, Bangkok 10330, Thailand
4
Department of Advanced Manufacturing Technology, Faculty of Engineering, Pathumwan Institute of Technology, 833 Rama 1 Road, Wangmai, Pathumwan, Bangkok 10330, Thailand
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National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
6
Center of Excellence in Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
*
Author to whom correspondence should be addressed.
Processes 2019, 7(6), 349; https://doi.org/10.3390/pr7060349
Received: 24 April 2019 / Revised: 30 May 2019 / Accepted: 1 June 2019 / Published: 7 June 2019
(This article belongs to the Special Issue Hydrogen Production Technologies)
This research aims at evaluating the performance of a combined system of biochar gasification and a sorption-enhanced water–gas shift reaction (SEWGS) for synthesis gas production. The effects of mangrove-derived biochar gasification temperature, pattern of combined gasification and SEWGS, amount of steam and CO2 added as gasifying agent, and SEWGS temperature were studied in this work. The performances of the combined process were examined in terms of biochar conversion, gaseous product composition, and CO2 emission. The results revealed that the hybrid SEWGS using one-body multi-functional material offered a greater amount of H2 with a similar amount of CO2 emissions when compared with separated sorbent/catalyst material. The gasification temperature of 900 °C provided the highest biochar conversion of ca. 98.7%. Synthesis gas production was found to depend upon the amount of water and CO2 added and SEWGS temperature. Higher amounts of H2 were observed when increasing the amount of water and the temperature of the SEWGS system. View Full-Text
Keywords: gasification; sorption-enhanced water–gas shift; multi-functional material gasification; sorption-enhanced water–gas shift; multi-functional material
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Chimpae, S.; Wongsakulphasatch, S.; Vivanpatarakij, S.; Glinrun, T.; Wiwatwongwana, F.; Maneeprakorn, W.; Assabumrungrat, S. Syngas Production from Combined Steam Gasification of Biochar and a Sorption-Enhanced Water–Gas Shift Reaction with the Utilization of CO2. Processes 2019, 7, 349.

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