石油炼制与化工 ›› 2016, Vol. 47 ›› Issue (9): 51-56.

• 催化剂 • 上一篇    下一篇

降低FCC再生烟气NOx排放助剂的工业应用

钟贵江1,梁先耀1,宋海涛2,田辉平2   

  1. 1.中国石化 北海炼化有限责任公司
    2. 中国石化石油化工科学研究院
  • 收稿日期:2016-04-14 修回日期:2016-04-19 出版日期:2016-09-12 发布日期:2016-08-22
  • 通讯作者: 宋海涛 E-mail:songht.ripp@sinopec.com

COMMERCIAL APPLICATION OF DECREASING NOx EMISSION ADDITIVES FOR FCC REGENERATED FLUE GAS

  • Received:2016-04-14 Revised:2016-04-19 Online:2016-09-12 Published:2016-08-22

摘要:

为了降低催化裂化(FCC)装置再生烟气的NOx排放、避免再生器稀相超温及出现“尾燃”问题,中国石化石油化工科学研究院与中国石化北海炼化有限责任公司、中国石化催化剂有限公司合作,在MIP-CGP装置上开展了降低FCC再生烟气NOx排放助剂RDNOx的工业应用试验。结果表明:RDNOx 助剂有利于控制再生器稀相温度,减少“尾燃”,稀相超温幅度和频次明显低于应用试验以前;应用RDNOx 助剂后,在线仪表监测到再生烟气中NOx 浓度基本在30~60 mg/m3之间波动,低于100mg/m3的最新环保标准限值,相比早期使用Pt助燃剂时的295 mg/m3,NOx浓度降低70%以上;RDNOx 助剂的应用未对裂化产物分布、主要产品的组成和性质产生不利影响。

关键词: 催化裂化, 再生烟气, NOx, 助剂

Abstract:

RDNOx additive for decreasing FCC NOx emission was applied in the MIP-CGP unit in SINOPEC Beihai Company. The results show that RDNOx additive is effective in controlling the regenerator dilute-phase temperature and reducing “after burn”. The range and frequency of dilute-phase temperature fluctuation are apparently decreased. Furthermore, the NOx content in the treated flue gas analyzed on line is 30-60 mg/m3, which is lower than that of the latest environmental regulation of 100 mg/m3. Compared with 295 mg/m3 when Pt based CO promoter was used, NOx emission is decreased by more than 70%. During the application of RDNOx additive, no negative influence on FCC product distribution and properties is observed.

Key words: FCC, regenerated flue gas, NOx, additive