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Combined steam and CO2 reforming of methane for syngas production over carbon-resistant boron-promoted Ni/SBA-15 catalysts

The unpromoted and B-promoted 10%Ni/SBA-15 catalysts synthesized via sequential incipient wetness impregnation approach were assessed for combined steam and CO2 reforming of methane (CSCRM) at various reaction temperatures of 973–1073 K and stoichiometric feed composition. An expected and noteworthy...

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Main Authors:	Tan, Ji Siang, Pham, Thong L. M., Cuong, Nguyen Van, Phuong, Pham T. T., Phuc, Nguyen Huu Huy, Truong, Quang Duc, Vo, Dai-Viet N.
Format:	Article
Language:	English
Published:	Elsevier Ltd 2018
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/20374/1/Combined%20steam%20and%20CO2%20reforming1.pdf http://umpir.ump.edu.my/id/eprint/20374/ https://doi.org/10.1016/j.micromeso.2017.11.028 https://doi.org/10.1016/j.micromeso.2017.11.028
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spelling	my.ump.umpir.203742018-07-31T07:01:24Z http://umpir.ump.edu.my/id/eprint/20374/ Combined steam and CO2 reforming of methane for syngas production over carbon-resistant boron-promoted Ni/SBA-15 catalysts Tan, Ji Siang Pham, Thong L. M. Cuong, Nguyen Van Phuong, Pham T. T. Phuc, Nguyen Huu Huy Truong, Quang Duc Vo, Dai-Viet N. TP Chemical technology The unpromoted and B-promoted 10%Ni/SBA-15 catalysts synthesized via sequential incipient wetness impregnation approach were assessed for combined steam and CO2 reforming of methane (CSCRM) at various reaction temperatures of 973–1073 K and stoichiometric feed composition. An expected and noteworthy drop in mean NiO crystallite size and BET surface area with boron promotion from 1% to 5%B loading could be due to the agglomeration of B2O3 particles and deboration reaction during calcination and hence blocking mesopores of SBA-15 support at elevated B composition. The complete NiO reduction to metallic Ni0 form was achieved during H2 activation and the reduction temperature of NiO phase was shifted towards higher temperature with B-addition owing to enhancing interaction between the acidic B2O3 and basic NiO phases. For all reaction temperature employed, 3%B appeared to be the optimal promoter loading in terms of reactant conversions and 3%B-10%Ni/SBA-15 catalyst revealed the greatest H2 yield (69.4%) at 1073 K. In addition, CH4 and CO2 conversions were enhanced about 23.2% and 32.4%, correspondingly with rising reaction temperature from 973 to 1073 K. Ratio of H2 to CO varied from 1.26 to 2.71 and the desired H2/CO ratio of about 2 favored for Fischer-Tropsch synthesis was achieved on 3%B-10%Ni/SBA-15 sample at 973 K. Boron promoter suppressed graphitic carbon formation and the amount of carbonaceous deposition was reduced about 4 times. Noticeably, 3%B-10%Ni/SBA-15 was also resilient to metallic Ni0 re-oxidation throughout CSCRM. Elsevier Ltd 2018 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/20374/1/Combined%20steam%20and%20CO2%20reforming1.pdf Tan, Ji Siang and Pham, Thong L. M. and Cuong, Nguyen Van and Phuong, Pham T. T. and Phuc, Nguyen Huu Huy and Truong, Quang Duc and Vo, Dai-Viet N. (2018) Combined steam and CO2 reforming of methane for syngas production over carbon-resistant boron-promoted Ni/SBA-15 catalysts. Microporous and Mesoporous Materials, 262. pp. 122-132. ISSN 1387-1811 https://doi.org/10.1016/j.micromeso.2017.11.028 https://doi.org/10.1016/j.micromeso.2017.11.028
institution	Universiti Malaysia Pahang
building	UMP Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Pahang
content_source	UMP Institutional Repository
url_provider	http://umpir.ump.edu.my/
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Tan, Ji Siang Pham, Thong L. M. Cuong, Nguyen Van Phuong, Pham T. T. Phuc, Nguyen Huu Huy Truong, Quang Duc Vo, Dai-Viet N. Combined steam and CO2 reforming of methane for syngas production over carbon-resistant boron-promoted Ni/SBA-15 catalysts
description	The unpromoted and B-promoted 10%Ni/SBA-15 catalysts synthesized via sequential incipient wetness impregnation approach were assessed for combined steam and CO2 reforming of methane (CSCRM) at various reaction temperatures of 973–1073 K and stoichiometric feed composition. An expected and noteworthy drop in mean NiO crystallite size and BET surface area with boron promotion from 1% to 5%B loading could be due to the agglomeration of B2O3 particles and deboration reaction during calcination and hence blocking mesopores of SBA-15 support at elevated B composition. The complete NiO reduction to metallic Ni0 form was achieved during H2 activation and the reduction temperature of NiO phase was shifted towards higher temperature with B-addition owing to enhancing interaction between the acidic B2O3 and basic NiO phases. For all reaction temperature employed, 3%B appeared to be the optimal promoter loading in terms of reactant conversions and 3%B-10%Ni/SBA-15 catalyst revealed the greatest H2 yield (69.4%) at 1073 K. In addition, CH4 and CO2 conversions were enhanced about 23.2% and 32.4%, correspondingly with rising reaction temperature from 973 to 1073 K. Ratio of H2 to CO varied from 1.26 to 2.71 and the desired H2/CO ratio of about 2 favored for Fischer-Tropsch synthesis was achieved on 3%B-10%Ni/SBA-15 sample at 973 K. Boron promoter suppressed graphitic carbon formation and the amount of carbonaceous deposition was reduced about 4 times. Noticeably, 3%B-10%Ni/SBA-15 was also resilient to metallic Ni0 re-oxidation throughout CSCRM.
format	Article
author	Tan, Ji Siang Pham, Thong L. M. Cuong, Nguyen Van Phuong, Pham T. T. Phuc, Nguyen Huu Huy Truong, Quang Duc Vo, Dai-Viet N.
author_facet	Tan, Ji Siang Pham, Thong L. M. Cuong, Nguyen Van Phuong, Pham T. T. Phuc, Nguyen Huu Huy Truong, Quang Duc Vo, Dai-Viet N.
author_sort	Tan, Ji Siang
title	Combined steam and CO2 reforming of methane for syngas production over carbon-resistant boron-promoted Ni/SBA-15 catalysts
title_short	Combined steam and CO2 reforming of methane for syngas production over carbon-resistant boron-promoted Ni/SBA-15 catalysts
title_full	Combined steam and CO2 reforming of methane for syngas production over carbon-resistant boron-promoted Ni/SBA-15 catalysts
title_fullStr	Combined steam and CO2 reforming of methane for syngas production over carbon-resistant boron-promoted Ni/SBA-15 catalysts
title_full_unstemmed	Combined steam and CO2 reforming of methane for syngas production over carbon-resistant boron-promoted Ni/SBA-15 catalysts
title_sort	combined steam and co2 reforming of methane for syngas production over carbon-resistant boron-promoted ni/sba-15 catalysts
publisher	Elsevier Ltd
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/20374/1/Combined%20steam%20and%20CO2%20reforming1.pdf http://umpir.ump.edu.my/id/eprint/20374/ https://doi.org/10.1016/j.micromeso.2017.11.028 https://doi.org/10.1016/j.micromeso.2017.11.028
_version_	1643668858371833856
score	13.211869

Combined steam and CO2 reforming of methane for syngas production over carbon-resistant boron-promoted Ni/SBA-15 catalysts

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