降低FCC再生烟气NOx排放助剂的开发

石油炼制与化工 ›› 2014, Vol. 45 ›› Issue (11): 7-12.

降低FCC再生烟气NOx排放助剂的开发

宋海涛,田辉平,朱玉霞,达志坚

中国石化石油化工科学研究院

收稿日期:2014-04-28 修回日期:2014-05-27 出版日期:2014-11-12 发布日期:2014-10-28
通讯作者: 宋海涛 E-mail:songht.ripp@sinopec.com
基金资助:
中国石油化工股份有限公司合同项目

DEVELOPMENT OF DECREASING NOx EMISSION ADDITIVES FOR FCC FLUE GAS

Received:2014-04-28 Revised:2014-05-27 Online:2014-11-12 Published:2014-10-28

摘要/Abstract

摘要： 开发了用于降低FCC再生烟气NOx排放的RDNOx系列助剂（I型和II型助剂）。I型助剂为非贵金属助剂，主要是通过催化CO对NOx的还原反应以降低NOx排放；II型助剂为贵金属助剂，是用于替代传统Pt助燃剂，在等效助燃CO的同时减少NOx的生成。两类助剂可以单独使用，也可以同时使用。助剂性能评价结果表明，在催化剂藏量中加入0.5%~0.9%的II型助剂与2%~4%的I型助剂，可以在基本不影响FCC产品分布的情况下，使再生烟气NOx排放量降低50%～64%。

Abstract: Reducing NOx emission additives for FCC flue gas (RDNOx，types I and II) were developed. RDNOx-I, a non-noble metal additive, is used to reduce NOx emission through catalyzing the reaction of NOx reduction. RDNOx-II, a noble metal additive, is used to substitute Pt based CO promoter, as it can promote CO combustion and decrease NOx formation at the same time. RDNOx-I and II can be used separately or simultaneously. The evaluation results show that when 0.5%-0.9% of RDNOx-II and 2-4% of RDNOx-I are applied, NOx emission in flue gas is reduced by about 50%-64%, while no negative influence on FCC product distribution is observed.

宋海涛田辉平朱玉霞达志坚. 降低FCC再生烟气NOx排放助剂的开发[J]. 石油炼制与化工, 2014, 45(11): 7-12.