KINETIC-STUDY OF STEAM REFORMING OF METHANOL OVER COPPER-BASED CATALYSTS
KINETIC-STUDY OF STEAM REFORMING OF METHANOL OVER COPPER-BASED CATALYSTS
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DOI：
10.1016/0926-860x(93)85197-w
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发表时间：
1993-01-04
影响因子：
5.5
通讯作者：
CANT, NW
中科院分区：
文献类型：
--
作者：
JIANG, CJ;TRIMM, DL;CANT, NW
研究了不同铜基催化剂在443 ~ 533 K温度下甲醇的蒸汽重整反应。筛选实验表明，共沉淀型CuO-ZnO-Al2O3低温甲醇合成催化剂活性最高，且不随在线时间的延长而失活。它对二氧化碳和氢（期望的反应产物）也表现出100%的选择性。共沉淀CuO-ZnO-Al2O3的动力学测量结果符合幂定律表达式：r(SR) = k0e-1.5 kJ/mol/RTP(MeOH)0.26P(H2O)0.03P(H-2)-0.2 co2对甲醇蒸汽重整动力学无影响。当进料中加入一氧化碳时，对蒸汽重整反应的影响可以忽略不计，其量级为0.016。
Steam reforming of methanol has been studied over various copper-based catalysts at temperatures from 443 to 533 K. Screening experiments showed that a coprecipitated CuO-ZnO-Al2O3 low-temperature methanol synthesis catalyst had the highest activity and did not deactivate with time on line. It also exhibited 100% selectivity to carbon dioxide and hydrogen (the desired reaction products). Kinetic measurements made over the coprecipitated CuO-ZnO-Al2O3 were found to fit the power law expression: r(SR) = k0e-1.5 kJ/mol/RTP(MeOH)0.26P(H2O)0.03P(H-2)-0.2 Carbon dioxide was found to have no effect on the kinetics of steam reforming of methanol. When carbon monoxide was added to the feed there was negligible influence on the steam reforming reaction with an order of 0.016 being observed.