针对现有二元、三元针织和平织铂催化剂存在铂耗高、铂用量大和成本高等问题，通过对氨氧化催化剂系统细化分区，科学合理配置贵金属量、合金比例和丝径，综合考虑氨氧化反应影响因素，设计最优化的双功效铂催化剂(DEC)系统。DEC系统的铂含量大大减少，降低损耗40%~50%，整体催化剂系统降低成本25%~35%。
To solving the problems of high consumption of Pt, the large filling amount of Pt and high cost, an optimum DEC Pt catalyst system was designed by scientifically and reasonably determine the amounts of precious metals, the metal proportion in the alloy and the diameter of the wire, and also the influence factors on the ammonia oxidation reaction. Using the DEC catalyst system, the content of Pt was significantly reduced. The loss of Pt was reduced to 40%~50%and the cost in the whole catalyst system was reduced to 25%~30%.
参考文献
| [1] | 宁远涛.硝酸工业氨氧化反应铂合金催化网的百年发展：Ⅰ.氨氧化铂合金催化网的发展和某些技术进步[J].贵金属,2008(03):60-65. |
| [2] | 宁远涛.Pt合金氨氧化催化剂的结构和性能[J].贵金属,2011(01):7-15. |
| [3] | 宁远涛.硝酸工业氨氧化反应铂合金催化网的百年发展： Ⅱ.氨氧化铂合金催化网的性质、表面状态和结构再造[J].贵金属,2008(04):41-46,54. |
| [4] | 宁远涛,杨正芬.在大气-氨混合气氛中Pt、Pd和Ni的腐蚀[J].贵金属,2011(03):7-12. |
| [5] | 姚梓均.无机物工艺学[M].北京:化学工业出版社,1981 |
| [6] | 曾祥根.硝酸生产中氨氧化接触时间的计算及确定原则[J].化肥设计,2006(02):12-14. |
| [7] | 吴小冬,傅稚俊,刘兰.氨氧化反应接触时间公式推导及应用[J].中氮肥,2011(06):26-28. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%