一种可循环吸附SO2的复合氧化物

研究了一种从水滑石类材料制得的ＭｇＡｌＦｅ复合氧化物脱除低浓度ＳＯ２的性能，发现它对ＳＯ２具有有很高的吸附速率，吸附容量可达每克材料吸附ＳＯ２ １．４ｇ以上，是一种性能优良的ＳＯ２吸附剂。研究中发现这类材料饱和吸附ＳＯ２后可以用氢气还原再生。氢气的浓度在１５％－１００％范围内不影响再速率。

A REGENERABLE MgAlFe COMPLEX OXIDE FOR SULFUR DIOXIDE REMOVAL

MgAlFe complex oxides derived from hydrotalcites appear to be a new important environmental catalysis for oxidation - adsorption of low concentration sulfur dioxide. Its basic properties of desulphuration were studied in a quartz reactor.The results indicated that MgAlFe complex oxide had high adsorptive rate on SO2 and amount of SO2 adsorbed was over 1.4 gram per gram of sorbent - catalyst, it is much higher than other materials. All MgAlFe complex oxides used were found to be regenerable under hydrogen.The concentration of hydrogen (within 15% - 100% ) did not affect the regenerative rate amd the regenerated MgAlFe compler orides still kept its good adsorptive ability even after its 10th regeneration