太原理工大学学报Issue(1)：22-28,7.DOI:10.16355/j.cnki.issn1007-9432tyut.2015.01.005
H2O/O2气氛下半焦负载氧化铁高温煤气脱硫剂再生行为研究
Regeneration Characteristics of Modified Semi_coke Supported (Fe2 O3) Desulfurization Sorbents in H2 O/O2
摘要
Abstract
Iron oxide high temperature coal gas desulfurization sorbent supported by semi_coke was prepared with precipitation method .The influences of regeneration temperature ,space veloci_ty and H2 O/O2 ratio on regeneration performances were investigated in a fixed_bed quartz reac_tor .X_ray diffraction ,X_ray photoelectron spectrometry ,scanning electron microscopy and N 2 ad_sorptions were used to identify changes in the physical and chemical properties of the sorbents be_fore and after regeneration .The results show that in the regeneration reaction FeS reacts with H2 O/O2 mixed gases to produce Fe2 O3 ,SO2 ,H2 S and a number of sulfur .T he optimum regenera_tion:regeneration temperature ,H2 O/O2 ratio and space velocity are 600 ℃ ,40 and 3 000 h-1 re_spectively .The maximum elemental sulfur yield can achieve 44.4% under this condition and the sorbents can be kept high regeneration rate (> 98.5% ) .In addition ,the mechanical strength of sorbents increases gradually and the sulfidation activity is still in a high level .关键词
高温煤气/氧化铁脱硫剂/再生/H2 O/O2 气氛Key words
hot coal gas/iron oxide desulfurization/regeneration/H2 O_O2 atmosphere分类
化学化工引用本文复制引用
吴宗泽,米杰,武蒙蒙,于蒙,上官炬,樊惠玲..H2O/O2气氛下半焦负载氧化铁高温煤气脱硫剂再生行为研究[J].太原理工大学学报,2015,(1):22-28,7.基金项目
国家自然科学基金资助项目微波固相合成复合金属氧化物中高温煤气脱硫材料及其性能研究（51272170／21276172）；太原理工大学人才引进基金项目资助 （）
