摘要
通过共沉淀法制备出多元改性的氧化铁复合脱硫剂,并在自行设计的实验系统中,分别考察了不同元素(Cu、Zn、Al、Ce、La)对氧化铁改性脱除硫化氢性能的影响。结果表明:由共沉淀法制备出的脱硫剂LaO_2-Al_2O_3-Fe_2O_3、CuO-Fe_2O_3、ZnO-Fe_2O_3、Al_2O_3-Fe_2O_3、CeO_2-Fe_2O_3、LaO_2-Fe_2O_3,在H_2S进气浓度为3 000 mg/m^3、加热温度为25~40℃、空速为4200 h^(-1)时,硫容依次为9.30%、5.81%、5.32%、8.8%、6.89%、7.86%,LaO_2-Al_2O_3-Fe_2O_3硫容最高,脱硫效果最好。
Multicomponent modified ferric oxide composite desulfurizer was prepared by co-precipitation method,the effects of different elements(Cu,Zn,Al,Ce,La)on the performance of hydrogen sulfide removal by ferric oxide were investigated in a self-designed experimental system.The results show that the desulfurizer LaO2-Al2O3-Fe2O3,CuO-Fe2O3,ZnO-Fe2O3,Al2O3-Fe2O3,CeO2-Fe2O3 and LaO2-Fe2O3 were prepared by co-precipitation,when the inlet air concentration of H2S was 3 000 mg/m3,the heating temperature was 25~40℃and the air speed was 4 200 h-1,their sulfur capacity is 9.30%,5.81%,5.32%,8.8%,6.89%and 7.86%respectively.The LaO2-Al2O3-Fe2O3 sulfur capacity is the highest,and the sulfur remvoal efficiency is the best.
作者
李树琰
郭斌
任爱玲
杜昭
Li Shuyan;Guo Bin;Ren Ailing;Du Zhao(School of Environmental Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;Hebei Research and Development Center for Air Pollution Prevention and Control,Shijiazhuang 050018,China)
出处
《煤炭与化工》
CAS
2017年第12期24-28,共5页
Coal and Chemical Industry
基金
国家科学支撑计划(2014BAC23B04-03)
关键词
氧化铁
共沉淀法
硫化氢
硫容
ferric oxide
co-precipitation method
hydrogen sulfide
sulfur capacity
