摘要
对催化裂化(FCC)烟气脱硝剂PRLN-60的理化性质进行了表征,采用固定床和提升管对其脱硝性能进行了评价,并考察了PRLN-60脱硝性能的影响因素。结果表明:脱硝剂PRLN-60的Na2O含量、表观松密度、磨损指数等性质与FCC主催化剂(LDO-70)相当;在固定床评价中,当反应温度为500~700℃时,脱硝剂PRLN-60的NOx脱除率高达100%,与参比剂相当;在提升管评价中,添加脱硝剂PRLN-60(质量分数为1.5%)后,NOx脱除率达到97%,且对产品分布影响较小;较低空速和氧含量均有利于NOx的脱除。
The physicochemical properties of fluid catalytic cracking(FCC) catalyst flue gas denitration agent PRLN-60 were characterized,the denitration performance of PRLN-60 was evaluated by the fixed bed and riser,and the factors affecting denitration performance of PRLN-60 were investigated.The results showed that the Na2O content, apparent bulk density and wear index of PRLN-60 were similar to those of FCC main catalyst (LDO-70).In the evaluation of fixed bed, when the reaction temperature was 500-700 ℃, NO x removal raTEof PRLN-60 was as high as100%, which were similar to those of reference catalysts.In the riser evaluation, after adding PRLN-60 (mass fraction1.5%), the removal raTEof NO x reached 97% and had little impact on product distribution;lower airspeed and oxygen content were beneficial to the removal of NO x .
作者
刘明霞
柳召永
刘涛
翟佳宁
杨旭
薛亚刚
张忠东
LIU Ming-xia;LIU Zhao-yong;LIU Tao;ZHAI Jia-ning;YANG Xu;XUE Ya-gang;ZHANG Zhong-dong(Lanzhou Petrochemical Research Center,PetroChina,Lanzhou 730060,China;Catalyst Plant of Lanzhou Petrochemial Company,PetroChina,Lanzhou 730060,China)
出处
《石化技术与应用》
CAS
2019年第4期241-243,共3页
Petrochemical Technology & Application
基金
中国石油天然气股份有限公司资助项目(项目编号:2016 B-2005)
关键词
催化裂化
脱硝
NOx
脱硝剂PRLN-60
固定床
提升管
脱硝率
fluid catalytic cracking
denitration
NO x
additives
denitration agent PRLN-60
fixed bed
risingpipe
denitrification rate
