Hydrogen production from co-gasification of coal and biomass in supercritical water by continuous flow thermal-catalytic reaction system |
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| Authors: | Yan Qiuhui Guo Liejin Liang Xing Zhang Ximin |
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| Affiliation: | (1) State Key Lab of Multiphase Flow in Power and Engineering, Xi’an Jiaotong University, Xi’an, 710049, China;(2) School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China |
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| Abstract: | Hydrogen is a clean energy carrier. Converting abundant coal sources and green biomass energy into hydrogen effectively and without any pollution promotes environmental protection. The co-gasification performance of coal and a model compound of biomass, carboxymethylcellulose (CMC) in supercritical water (SCW), were investigated experimentally. The influences of temperature, pressure and concentration on hydrogen production from co-gasification of coal and CMC in SCW under the given conditions (20–25 MPa, 650°C, 15–30 s) are discussed in detail. The experimental results show that H2, CO2 and CH4 are the main gas products, and the molar fraction of hydrogen reaches in excess of 60%. The higher pressure and higher CMC content facilitate hydrogen production; production is decreased remarkably given a longer residence time. Translated from Journal of Xi’an Jiao Tong University, 2005, 39(5): 454–457 [译自: 西安交通大学学报] |
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| Keywords: | hydrogen production coal CMC supercritical water co-gasification |
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