Production of high-purity hydrogen by sorption-enhanced steam reforming process of methanol

Xiang Wu; Sufang Wu

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Production of high-purity hydrogen by sorption-enhanced steam reforming process of methanol

机译：甲醇吸附增强蒸汽重整工艺生产高纯氢

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The sorption-enhanced steam reforming process of methanol(SESRP-Me OH) to produce high-purity H2 was thermodynamically and experimentally studied.Thermodynamic calculations showed that at a CO2 adsorption ratio of 95%,product gas contains 98.36% H2,32.8 ppm CO under temperature of 130°C and steam-to-methanol(S/M) molar ratio of 2.However,without adsorption-enhanced,the product gas contains nearly 74.99% H2 with 24.96% CO2 and 525 ppm CO.To verify the thermodynamic calculation results,experiments were performed in a fixed-bed reactor loaded with commercial Cu O/Zn O/Al2O3 methanol reforming catalyst and 22% K2CO3-promoted hydrotalcite as CO2 adsorbent.Experimental results showed that 99.61% H2 could be obtained by SESRP-Me OH at reaction temperature of 230°C and S/M of 2.Under the same CH3 OH conversion,the reaction temperature decreased by almost 50°C and H2 concentration increased of more than 20%using SESRP-Me OH compared with solely steam reforming of methanol.The characterization of the adsorbent and catalyst showed that the adsorbent showed good stability while the catalyst was seriously sintered under the high regeneration temperature of the adsorbent.

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来源
《天然气化学（英文版）》 |2015年第3期|315-321|共7页
作者
Xiang Wu; Sufang Wu;
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作者单位

College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China;

College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China;

Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University, Hangzhou 310027, Zhejiang, China;

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
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正文语种 eng
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Production of high-purity hydrogen by sorption-enhanced steam reforming process of methanol

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