摘要
重点考察催化剂制备工艺以及不同添加剂对催化剂强度和抗水性能的影响。通过改进制备工艺参数及配方优化,催化剂轴向强度和径向强度分别达到4.9 MPa和1.1 MPa,超过现有商业SCR催化剂。活性测试表明,现有催化剂在120℃时的NO转化率最高达到97.53%,引入8%的水汽稳定后,NO转化率仍高达81%左右,具有较高的低温活性和抗水性。
The affection of the catalyst preparation process and different additives on catalyst strength and water-resistance was mainly studied. Through the improvement of preparation process and the optimization of the catalyst formula,the lengthwise and crosswise strength of the catalyst exceed 4. 9 MP and 1. 1 MPa,respectively,which were all higher than the commercial catalyst. Furthermore,97. 53% NO conversion was achieved at the temperature of 120 ℃ in the activity tests. After intruding 8% water vapor,the NO conversion also maintained around 81%,which showed high low temperature activity and fine water-resistance.
出处
《能源工程》
2014年第6期48-51,62,共5页
Energy Engineering
关键词
低温SCR催化剂
Mn
CE
强度
抗水性
low temperature SCR catalyst
Mn
Ce
strength
water-resistance
