天然气化工2012，Vol.37Issue(2)：12-16,5.
Zr助剂对铁基催化剂F-T合成性能的影响
Effect of Zr promoter on iron-based catalyst for Fischer-Tropsch synthesis
摘要
Abstract
The effects of promoter Zr content on the structure, reduction behavior and phase transformation of the iron-based catalysts for Fischer-Tropseh synthesis (FTS) were investigated using N2 adsorption, temperature-programmed reduction, X-ray photoelectron spectroscopy and Mo ssbauer effect spectroscopy. The FTS performances of the iron-based catalysts were studied in a fixed-bed reactor under the conditions of HXO molar ratio of 0.67, 270℃, 1.5MPa and space velocity of 1.0 L-g-1'-h-1. The results showed that small amount of Zr increased the BET surface area, promoted the reduction/carburizalion and improved the activity of the catalyst. While large amounts of Zr addition decreased the surface area, suppressed the reduction/carburization of the catalyst, decreased the activity and speeded up the catalyst deactivation. The optimal catalyst with Zr/Fe molar ratio of 0.01 had high CO conversion and high selectivity to C5+ hydrocarbons.关键词
费托合成/铁基催化剂/Zr助剂Key words
Fiacher-Tropsch synthesis/iron based catalyst/Zr promoter分类
化学引用本文复制引用
张皓荐,马宏方,张海涛,应卫勇,房鼎业..Zr助剂对铁基催化剂F-T合成性能的影响[J].天然气化工,2012,37(2):12-16,5.基金项目
国家高技术研究发展计划(863计划)项目(2011AA05A204),国家重点实验室课题(SKL-ChE-09T01) （863计划）
