石油化工2012，Vol.41Issue(12)：1418-1423,6.
助剂MnO2对Na2CO3-γ-Al2O3吸附SO2和NO性能的影响
Effect of Addition of MnO2 to Na2CO3-γ-Al2O3 on Its Adsorption of SO2 and NO
杜冰 1宗保宁 1罗一斌 1王维家1
作者信息
- 1. 中国石化石油化工科学研究院,北京 100083
- 折叠
摘要
Abstract
Mn-Na2CO3-γ-Al2O3 sorbent was prepared by doping MnO2 to Na2C03-γ-Al2O3 to improve its adsorption capacity for SO2 and NO. The effect of the improvement was examined in a fixed-bed flow reactor. The results show that the loading of MnO2 has an important effect on the adsorption capacity for SO2 and NO and the optimal MnO2 loading is 3%-5%(w). Compared to Na2CO3-γ-Al2O3, Mn-Na2CO3-y-Al2O3 keeps the same adsorbility for SO2 and NO but the optimum adsorption temperature is lowered from 90 ℃ to 20-50 X.. At 50 ℃, the adsorption capacities of Mn-Na2CO3-γ-Al2O3 for SO2 and NO are about 35.1% and 44.1% higher than those of Na2CO3-γ-A12O3, respectively. The addition of MnO2 leads to the increase of lattice oxygen, which can promote the adsorption of SO2 and NO on the surface of Na2CO3-γ-Al2O3.关键词
碳酸钠-氧化铝吸附剂/二氧化硫/一氧化氮/二氧化锰助剂/吸附Key words
sodium carbonate-aluminum oxide sorbent/ sulfur dioxide/ nitric oxide/ manganese dioxide promoter/ adsorption分类
化学化工引用本文复制引用
杜冰,宗保宁,罗一斌,王维家..助剂MnO2对Na2CO3-γ-Al2O3吸附SO2和NO性能的影响[J].石油化工,2012,41(12):1418-1423,6.
