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[1] Dong Xinxin, Jin BaoshengWang Yanyan, Niu Miaomiao,. Experiments on Ni/γ-Al2O3 catalyst for improving lowerheating value of biomass gasification fuel gas via methanation [J]. Journal of Southeast University (English Edition), 2017, 33 (4): 448-456. [doi:10.3969/j.issn.1003-7985.2017.04.010]
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Experiments on Ni/γ-Al2O3 catalyst for improving lowerheating value of biomass gasification fuel gas via methanation()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
33
Issue:
2017 4
Page:
448-456
Research Field:
Chemistry and Chemical Engineering
Publishing date:
2017-12-30

Info

Title:
Experiments on Ni/γ-Al2O3 catalyst for improving lowerheating value of biomass gasification fuel gas via methanation
Author(s):
Dong Xinxin;  Jin BaoshengWang Yanyan;  Niu Miaomiao
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China
Keywords:
Ni-based catalyst;  methanation;  biomass gasification fuel gas;  lower heating value
PACS:
O643.3
DOI:
10.3969/j.issn.1003-7985.2017.04.010
Abstract:
Ni-based catalysts supported by γ-Al2O3 were prepared for improving the lower heating value(LHV)of biomass gasification fuel gas through methanation. Prior to the performance tests, the physico-chemical properties of the catalyst samples were characterized by N2 isothermal adsorption/desorption, X-ray diffraction(XRD)and a scanning electron microscope(SEM). Afterwards, a series of experiments were carried out to investigate the catalytic performance and the results show that catalysts with 15% and 20% Ni loadings have better methanation catalytic effect than those with 5% and 10% Ni loadings in terms of elevating the LHV of biomass gasification fuel gas. Moreover, controllable influential factors such as the reaction temperature, the H2/CO ratio and the water content occupy an important position in the methanation of biomass gasification fuel gas. 15Ni/γ-Al2O3 and 20Ni/γ-Al2O3 catalysts have a higher CO conversion and CH4 selectivity at 350 ℃ and the LHV of biomass gasification fuel gas can be largely increased by 34.3 % at 350 ℃. Higher H2/CO ratio and a lower water content are more beneficial for improving the LHV of biomass gasification fuel gas when considering the combination of both CO conversion and CH4 selectivity. This is due to the fact that a higher H2/CO ratio and lower water content can increase the extent of the methanation reaction.

References:

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Memo

Memo:
Biographies: Dong Xinxin(1991—), male, graduate; Jin Baosheng(corresponding author), male, professor, bsjin@seu.edu.cn.
Foundation item: The International S&T Cooperation Program of China(No.2014DFE70150).
Citation: Dong Xinxin, Jin Baosheng, Wang Yanyan, et al. Experiments on Ni/γ-Al2O3 catalyst for improving lower heating value of biomass gasification fuel gas via methanation[J].Journal of Southeast University(English Edition), 2017, 33(4):448-456.DOI:10.3969/j.issn.1003-7985.2017.04.010.
Last Update: 2017-12-20