Preparation and selection of Fe-Cu sorbent for COS removal in syngas  

作　　者：Bowu CHENG Zhaofei CAO Yong BAI Dexiang ZHANG 

机构地区：[1]Department of Chemical Engineering for Energy Resources,East China University of Science and Technology,Shanghai 200237,China

出　　处：《Frontiers of Chemical Science and Engineering》2010年第4期441-444,共4页化学科学与工程前沿（英文版）

基　　金：supported by the National Development Programming of Key Fundamental Researches of China(Grant No.2005CB221203);Program for Changjiang Scholars and Innovative Research Team in University(IRT0206);Shanghai Leading Academic Discipline Project(B506).

摘　　要：A series of iron-based sorbents prepared with iron trioxide hydrate,cupric oxide by a novel method was studied in a fixed-bed reactor for COS removal from syngas at moderate temperature.In addition,the sorbents mixed with various additives in different ratios were tested.The effects of additive type and ratio on the breakthrough capacity and desulfurization performance,as well as the influence of operating conditions on sulfidation behavior of the sorbent,were investigated.The simulate gas contained 1%COS,5%CO_(2),20%-30%CO and 60%-70%H_(2).The outlet gases from the fixed-bed reactor were automatically analyzed by on-line mass spectrometry,and the COS concentration before breakthrough can be kept steady at 1 ppmv.The result shows that the breakthrough sulfur capacity of the sorbent is as high as 25 g-S/100 g.At 700 K and space velocity of 1000 h^(-1),the efficiency of sulfur removal and breakthrough sulfur capacity of the sorbent increase with the increase of copper oxide with an optimum value.The result shows that the species and content of additives also affect desulfurization performance of the sorbent.

关 键 词：SORBENT DESULFURIZATION COS removal SYNGAS 

分 类 号：TG1[金属学及工艺—金属学]