Bi-reforming of Methane with Steam and CO2 over Ni/La-SBA-15 Catalyst for Synthesis Gas Production

Bi-reforming of Methane with Steam and CO2 over Ni/La-SBA-15 Catalyst for Synthesis Gas Production

Bi-reforming of methane with steam and CO2 has been emerged as an alluring reforming technique for syngas production with a desirable H2/CO ratio close to 2, which is highly compatible for the industrial generation of methanol and Fischer-Tropsch chemicals. This study focuses on preparation, physico...

Full description

Bibliographic Details
Main Authors: Singh, Sharanjit, Vo, Dai-Viet N.
Format: Conference or Workshop Item
Language:English
Published: International Conference on Catalysis (iCAT 2016) 2016
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/14579/
http://umpir.ump.edu.my/id/eprint/14579/2/fkksa-2016-vietvo-Bi-reforming%20of%20Methane%20with%20Steam%20and%20CO2%20over1.pdf
id ump-14579
recordtype eprints
spelling ump-145792019-10-03T07:45:09Z http://umpir.ump.edu.my/id/eprint/14579/ Bi-reforming of Methane with Steam and CO2 over Ni/La-SBA-15 Catalyst for Synthesis Gas Production Singh, Sharanjit Vo, Dai-Viet N. TP Chemical technology Bi-reforming of methane with steam and CO2 has been emerged as an alluring reforming technique for syngas production with a desirable H2/CO ratio close to 2, which is highly compatible for the industrial generation of methanol and Fischer-Tropsch chemicals. This study focuses on preparation, physicochemical attributes and the catalytic performance of 10%Ni/La-SBA-15 catalyst for the combined steam and dry reforming of methane. The La2O3-incorporated mesoporous silica support (La-SBA-15) previously prepared by one-pot hydrothermal method was doped with Ni(NO3)2 precursor solution using an incipient wetness impregnation approach to synthesize a 10%Ni/La-SBA-15 catalyst. Various characterization techniques including XRD, FTIR, BET, HR-TEM, H2-TPR and TPO measurements were employed to investigate the physicochemical properties of both fresh and spent catalysts. Bi-reforming of methane was carried out in a tubular fixed-bed reactor under atmospheric pressure at 923 K – 1023 K and CH4:CO2:H2O = 2:1:1 with gas hourly space velocity (GHSV) of 36 L gcat-1 h-1. Although La-SBA-15 support possessed high BET surface area of 737.3 m2 g-1, an unavoidable decline in surface area with Ni metal addition to 535.4 m2 g-1 for 10%Ni/La-SBA-15 catalyst was evident indicating the diffusion of NiO nanoparticles into the mesopores of La-SBA-15 support. Indeed, H2-TPR result shows that NiO particles present on support surface were reduced to metallic Ni0 phase at 675 K, while NiO species inhabited inside the mesoporous channels of support were completely reduced at higher reduction temperature of above 750 K due to strong metal-support interaction. Additionally, the presence of NiO phase with small average crystallite size of 17.4 nm was confirmed by X-ray diffraction measurement. The 10%Ni/La-SBA-15 catalyst exhibited stable activity and selectivity during the span of 12 h on-stream regardless of reaction temperature of 923-1023 K. Methane conversion increased with growing reaction temperature from 923 to 1023 K and reached to the highest value of about 55%. Interestingly, H2/CO ratio also enhanced with rising temperature and it was always greater than 1. In addition, H2 selectivity and yield were superior to those of CO. These observations would be due to the concomitant presence of CH4 steam reforming reaction favored for H2 formation. International Conference on Catalysis (iCAT 2016) 2016 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/14579/2/fkksa-2016-vietvo-Bi-reforming%20of%20Methane%20with%20Steam%20and%20CO2%20over1.pdf Singh, Sharanjit and Vo, Dai-Viet N. (2016) Bi-reforming of Methane with Steam and CO2 over Ni/La-SBA-15 Catalyst for Synthesis Gas Production. In: International Conference on Catalysis (iCAT 2016), 20-21 September 2016 , Johor Bahru. .
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Singh, Sharanjit
Vo, Dai-Viet N.
Bi-reforming of Methane with Steam and CO2 over Ni/La-SBA-15 Catalyst for Synthesis Gas Production
description Bi-reforming of methane with steam and CO2 has been emerged as an alluring reforming technique for syngas production with a desirable H2/CO ratio close to 2, which is highly compatible for the industrial generation of methanol and Fischer-Tropsch chemicals. This study focuses on preparation, physicochemical attributes and the catalytic performance of 10%Ni/La-SBA-15 catalyst for the combined steam and dry reforming of methane. The La2O3-incorporated mesoporous silica support (La-SBA-15) previously prepared by one-pot hydrothermal method was doped with Ni(NO3)2 precursor solution using an incipient wetness impregnation approach to synthesize a 10%Ni/La-SBA-15 catalyst. Various characterization techniques including XRD, FTIR, BET, HR-TEM, H2-TPR and TPO measurements were employed to investigate the physicochemical properties of both fresh and spent catalysts. Bi-reforming of methane was carried out in a tubular fixed-bed reactor under atmospheric pressure at 923 K – 1023 K and CH4:CO2:H2O = 2:1:1 with gas hourly space velocity (GHSV) of 36 L gcat-1 h-1. Although La-SBA-15 support possessed high BET surface area of 737.3 m2 g-1, an unavoidable decline in surface area with Ni metal addition to 535.4 m2 g-1 for 10%Ni/La-SBA-15 catalyst was evident indicating the diffusion of NiO nanoparticles into the mesopores of La-SBA-15 support. Indeed, H2-TPR result shows that NiO particles present on support surface were reduced to metallic Ni0 phase at 675 K, while NiO species inhabited inside the mesoporous channels of support were completely reduced at higher reduction temperature of above 750 K due to strong metal-support interaction. Additionally, the presence of NiO phase with small average crystallite size of 17.4 nm was confirmed by X-ray diffraction measurement. The 10%Ni/La-SBA-15 catalyst exhibited stable activity and selectivity during the span of 12 h on-stream regardless of reaction temperature of 923-1023 K. Methane conversion increased with growing reaction temperature from 923 to 1023 K and reached to the highest value of about 55%. Interestingly, H2/CO ratio also enhanced with rising temperature and it was always greater than 1. In addition, H2 selectivity and yield were superior to those of CO. These observations would be due to the concomitant presence of CH4 steam reforming reaction favored for H2 formation.
format Conference or Workshop Item
author Singh, Sharanjit
Vo, Dai-Viet N.
author_facet Singh, Sharanjit
Vo, Dai-Viet N.
author_sort Singh, Sharanjit
title Bi-reforming of Methane with Steam and CO2 over Ni/La-SBA-15 Catalyst for Synthesis Gas Production
title_short Bi-reforming of Methane with Steam and CO2 over Ni/La-SBA-15 Catalyst for Synthesis Gas Production
title_full Bi-reforming of Methane with Steam and CO2 over Ni/La-SBA-15 Catalyst for Synthesis Gas Production
title_fullStr Bi-reforming of Methane with Steam and CO2 over Ni/La-SBA-15 Catalyst for Synthesis Gas Production
title_full_unstemmed Bi-reforming of Methane with Steam and CO2 over Ni/La-SBA-15 Catalyst for Synthesis Gas Production
title_sort bi-reforming of methane with steam and co2 over ni/la-sba-15 catalyst for synthesis gas production
publisher International Conference on Catalysis (iCAT 2016)
publishDate 2016
url http://umpir.ump.edu.my/id/eprint/14579/
http://umpir.ump.edu.my/id/eprint/14579/2/fkksa-2016-vietvo-Bi-reforming%20of%20Methane%20with%20Steam%20and%20CO2%20over1.pdf
first_indexed 2023-09-18T22:18:30Z
last_indexed 2023-09-18T22:18:30Z
_version_ 1777415498229612544

Similar Items