|本期目录/Table of Contents|

[1]霍其雷,尤永平*,李伟.合成氨装置低温甲醇洗系统贫甲醇含水量升高的原因分析及对策[J].石化技术与应用,2024,3:216-220.
 HUO Qi-lei,YOU Yong-ping,LI Wei.Cause analysis and countermeasures for increasing water content oflean methanol in low-temperature methanol washing system of synthetic ammonia unit[J].Petrochemical technology & application,2024,3:216-220.
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合成氨装置低温甲醇洗系统贫甲醇含水量升高的原因分析及对策(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2024年3期
页码:
216-220
栏目:
出版日期:
2024-05-10

文章信息/Info

Title:
Cause analysis and countermeasures for increasing water content oflean methanol in low-temperature methanol washing system of synthetic ammonia unit
文章编号:
1009-0045(2024)03-0216-05
作者:
霍其雷尤永平*李伟
中国石油吉林石化公司 化肥厂,吉林 吉林 132021
Author(s):
HUO Qi-leiYOU Yong-pingLI Wei
Fertilizer Plant of Jilin Petrochemical Company,PetroChina,Jilin 132021,China
关键词:
合成氨装置低温甲醇洗系统甲醇/水分离贫甲醇含水质量分数异常升高塔板堵塞优化措施
Keywords:
synthetic ammonia unitlow temperature methanol washing systemmethanol/water separationthe mass fraction of water in lean methanolabnormally increasetray blockageoptimization measures
分类号:
TQ 113.26+4
DOI:
DOI:10.19909/j.cnki.ISSN1009-0045.2024.03.0216
文献标识码:
B
摘要:
针对中国石油吉林石化公司30万t/a合成氨装置在新增合成气净化系统的工艺改造后,低温甲醇洗系统贫甲醇含水量(质量分数,下同)异常升高(高达2.6%)并超过设计指标值(1.5%),不得不降负荷运行的情况,排查了相关影响因素,分析了导致甲醇/水分离塔塔板筛孔堵塞的原因,并实施了相应的工艺优化措施。结果表明:工艺优化措施实施后,大幅改善了甲醇/水分离塔的分离效果,不仅使该装置低温甲醇洗系统负荷率由82%提升至100%,还使贫甲醇含水量降低至0.4%。
Abstract:
In response to the abnormal increase(up to 2.6%) in the water content of lean methanol (mass fraction,the same below) in the low-temperature methanol washing system of the 300 kt/a synthetic ammonia unit of Jilin Petrochemical Company of PetroChina after the process transformation of the newly added synthetic gas purification system,which exceeded the design index value(1.5%) and had to be operated at reduced-load,the relevant influencing factors were analyzed and investigated,and the reasons leading to the blockage of the sieve holes of the methanol/water separation tower tray were analyzed,then the corresponding process optimization measures were implemented. The results showed that after the implementation of process optimization measures,the separation effect of methanol/water separation from the tower was significantly improved. Not only did it increase the load rate of the low-temperature methanol washing system from 82% to 100%,but also reduced the water content of lean methanol to 0.4%.

参考文献/References

[1] 刘哲,蔡航,王亚辉.低温甲醇洗系统贫甲醇水含量超标原因分析及优化措施[J].中氮肥,2018(1):32-33.[2] 张利娟,刘斌,平寒锐.低温甲醇洗水分离塔异常工况的处理[J].煤化工与甲醇,2020,46(7):5-9.[3] 张翊人.低温甲醇洗工艺的发展和改进[J].氮肥设计,1993,31(1):3-9.[4] 张魁.低温甲醇洗装置出口合成气总硫超标原因分析及对策[J].天津化工,2014,28(6):35-36.[5] 周刘松.合成氨装置低温甲醇洗系统的腐蚀、堵塞及处理对策[J].化学工业与工程技术,2001,22(4):35-36.[6] 郭华,孟祥玉.浮阀塔盘与固阀塔盘在甲醇水分离塔中的应用[J].科技信息,2013(21):467.

备注/Memo

备注/Memo:
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更新日期/Last Update: 2024-05-10