|本期目录/Table of Contents|

[1]张鹏,刘军强,巫树锋,等.选择性催化还原(SCR)脱硝催化剂制备及其在乙烯装置的工业应用[J].石化技术与应用,2025,3:245-248.
 ZHANG Peng,LIU Jun-qiang,WU Shu-feng,et al.Preparation of selective catalytic reduction (SCR) denitration catalystand its industrial application in ethylene cracking plant[J].Petrochemical technology & application,2025,3:245-248.
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选择性催化还原(SCR)脱硝催化剂制备及其在乙烯装置的工业应用(PDF)

《石化技术与应用》[ISSN:1009-0045/CN:10-2024/TQ]

期数:
2025年3期
页码:
245-248
栏目:
出版日期:
2025-05-10

文章信息/Info

Title:
Preparation of selective catalytic reduction (SCR) denitration catalystand its industrial application in ethylene cracking plant
文章编号:
1009-0045(2025)03-0245-04
作者:
张鹏刘军强巫树锋刘兴誉沈聪蒲欣
中国石油石油化工研究院 兰州化工研究中心,甘肃 兰州 730060
Author(s):
ZHANG PengLIU Jun-qiangWU Shu-fengLIU Xin-yuSHENG CongPU Xin
Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina, Lanzhou 730060, China
关键词:
选择性催化还原脱硝催化剂乙烯装置裂解炉氮氧化物氨逃逸值
Keywords:
selective catalytic reduction denitration catalyst cracking furnace of ethylene plant nitrogen oxide ammonia escape value
分类号:
TE 624.4+1
DOI:
DOI:10.19909/j.cnki.ISSN1009-0045.2025.03.0245
文献标识码:
B
摘要:
通过改进传统蜂窝式选择性催化还原(SCR)脱硝催化剂配方及制备工艺,开发了高孔数整体式蜂窝状SCR脱硝催化剂,并对某石化企业新建60万t/a乙烯装置的裂解炉烟气进行工业应用。结果表明:蜂窝状SCR脱硝催化剂的径向抗压强度为1.37 MPa,轴向抗压强度为2.50 MPa,微观比表面积为55.95 m2/g,均优于GB 31587—2015的指标要求;在正常、烧焦、热备等3种不同工况下,裂解炉烟气经催化剂床层后,NOx出口质量浓度均能稳定在20~50 mg/m3;经过3 a的长周期运行,NOx出口质量浓度稳定在50 mg/m3以下,氨逃逸值稳定低于2.5 μL/L。
Abstract:
By improving formula and preparation process for the traditional cellular catalyst of selective catalytic reduction(SCR), a high-porosity monolithic cellular SCR denitration catalyst was developed and applied to the flue gas of a newly built 0.6 Mt/a ethylene cracking plant in a petrochemical enterprise. The results showed that the radial and axial compressive strength as well as the microscopic specific surface area of the catalyst were 1.37 MPa, 2.50 MPa, 55.95 m2/g, respectively. Those all were superior to the requirements of GB 31587-2015. Under three different operating conditions of normal and burnt and hot standby, the NOx exit mass concentration in the flue gas after passing through the catalyst bed remained between 20-50 mg/m3. After a long-term operation of more than about 3 a, the NOx exit mass concentration remained below 50 mg/m3, the ammonia escape value remained below 2.5 μL/L stably.

参考文献/References

[1] 王哲.降低乙烯裂解炉NOx排放的工艺研究[J].石油石化绿色低碳,2019,4(2):53-57.[2] 李震武.乙烯裂解炉燃烧过程的数值模拟及燃烧器结构优化研究[D].北京:中国石油大学(北京),2022.[3] 李枭鸣.高温除尘脱硝一体化技术的开发及应用研究[J].环境科学与管理,2022,47(12):101-105.[4] 陈中涛,余稷,王宽岭,等.SCR脱硝技术在炼化企业中的应用[J].安全、健康和环境,2020,20(7):26-30.[5] 代兵,王平,王小瑞,等.SCR脱硝技术在裂解炉上的应用分析[J].乙烯工业,2020,32(3):29-34.[6] 王伟,王朝,杨付涛,等.SCR技术在裂解炉上运行可靠性分析[J].乙烯工业,2022,34(4):47-52.[7] 王宽岭,赵伟,王学海,等.FN-3 Y型NH3-SCR脱硝催化剂开发及工业应用[J].当代化工,2022,51(6):1397-1401.[8] 薄建民,詹爽,张娣,等.乙烯裂解炉脱硝降氮技术及其应用[J].化工机械,2022,49(3):509-514.

备注/Memo

备注/Memo:
中国石油天然气股份有限公司资助项目(项目编号:2020 D-4628)
更新日期/Last Update: 2025-05-10