催化裂化烟气脱硫、脱氮吸附剂的初步研究  

Primary Investigations of Adsorbents for Removal of Sulfur Oxides and Nitrogen Oxides From Catalytic Cracking Flue Gas

作　　者：郭大为[1] 张久顺[1] 梁彬[2] 于敬川[1] 王巍[1] 

机构地区：[1]中国石化石油化工科学研究院,北京100083 [2]宁夏工商职业技术学院化工系,宁夏银川750001

出　　处：《石油学报（石油加工）》2011年第2期192-197,共6页Acta Petrolei Sinica(Petroleum Processing Section)

摘　　要：在微型连续床式反应装置上,考察了催化裂化催化剂吸附烟气中SO2、NOx的性能。当SO2、NOx的体积分数分别为1800和1900μL/L、反应温度为220℃、微正压操作时,新鲜吸附剂90%的SO2脱除率维持在140~200 s,70%的NOx脱除率维持在220~470 s;吸附容量为11.4~16.2 mg/g。SO2、NOx与吸附剂以物理吸附和化学吸附方式相作用;吸附运转剂表面的S和N分别以SO24-和NO-3存在。Performances of SO2 and NOx removal over catalytic cracking catalysts were investigated in a micro continuous bed device.Removal rate of more than 90% to SO2 over fresh adsorbents was retained for 140 to 200 s,and that of more than 70% to NOx for 220 to 470 s under the conditions of φ（SO2）= 1800 μL/L,φ（NOx）=1900 μL/L,200℃,and light positive pressure.The adsorption capability to SO2 was in the range of 11.4-16.2 mg/g.SO2 and NOx interacted with adsorbents in physical and chemical adsorptions.The S and N in the surface of run adsorbents existed in the form of SO2-4 and NO-3,respectively.

关 键 词：吸附剂 脱硫脱氮 吸附 催化裂化 烟气 

分 类 号：TQ426.95[化学工程] O642[理学—物理化学]