THE MODIFICATION OF SiO2 BY VARIOUS ORGANIC GROUPS AND ITS INFLUENCE ON THE PROPERTIES OF COBALT-BASED CATALYSTS FOR FISCHER-TROPSCH SYNTHESIS
(0) IntroductionFischer-Tropsch (F-T) synthesis is one of major routes for converting coal-based and/or natural gas-derived syngas into environmentally sound production of chemicals and fuels. Cobalt based catalysts are the preferred catalysts for hydrocarbon synthesis because of their high F-T synthesis activity, selectivity for long-chain paraffins, and low activity for water-gas shift reaction 1. The catalytic activity and product selectivity of cobalt catalysts are strongly influenced by the surface properties of support, because these properties changed the interaction, of cobalt and support, resulting in different dispersion and reducibility of supported cobalt. Zhang et al. 2 found that the physicochemical properties of alumina could be influenced by the hydrothermal treatment with some solutions, and the dispersion and reducibility of supported cobalt were closely associated with the surface properties of alumina support. Zhao et al. 3 reported that the calcination had a great influence on the surface acidity of ZrO2, and consequently changed the dispersion and reducibility of supported cobalt.
Lihong Shi Debao Li Bo Hou Yuhan Sun
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 2 State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 2 State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 2
国际会议
The 7th China-Korea Workshop on Clean Energy Technology(第七届中韩清洁能源技术研讨会)
太原
英文
233-234
2008-06-25（万方平台首次上网日期，不代表论文的发表时间）