燃料化学学报2011，Vol.39Issue(3)：212-218,7.
Cu助剂的加入方式对铁基催化剂F-T合成性能的影响
Effect of incorporation manner of Cu promoter on Fischer-Tropsch synthesis performances over iron-based catalysts
摘要
Abstract
A series of spherical FeCuK/SiO2 catalysts for slurry Fischer-Tropsch synthesis (FFS) were prepared by the spray drying method. The effects of incorporation manner of Cu on the crystallite structure, the reduction and carburization behaviors were studied by H2 temperature-programmed reduction (H2-TPR) and Mossbauer spectroscopy. The catalytic performances were evaluated in a slurry reactor under the industrial relevant reaction conditions of 250 ℃, 1.5 MPa, H2/CO = 0.67 and a space velocity of 2.0 L/gcat-h. The result indicated that the coprecipitated Cu was well dispersed in iron phase, which promoted the reduction, carburization of the catalyst and the catalytic activity. The addition of respective precipitated Cu suppressed the reduction and carburization of the catalyst. All catalysts were stable during 500 h on stream. For the hydrocarbon selectivity,the addition of the coprecipitated Cu increased the selectivities of heavy hydrocarbons and olefins, and restrained the formation of oxygenates, compared with others.关键词
F-T合成/铁基催化剂/Cu助剂/加入方式Key words
Fischer-Tropsch synthesis/ iron-based catalyst/ Cu promter/ incorporation manner分类
化学化工引用本文复制引用
安霞,相宏伟,李永旺..Cu助剂的加入方式对铁基催化剂F-T合成性能的影响[J].燃料化学学报,2011,39(3):212-218,7.基金项目
国家杰出青年科学基金(20625620) （20625620）
国家自然科学基金重大项目(20590361). （20590361）
