|本期目录/Table of Contents|

[1]宋亦伟,张舒,张强,等.电渗析胺液脱盐净化技术在溶剂再生系统的工业应用[J].石化技术与应用,2023,3:201-205.
　SONG Yi-wei,ZHANG Shu,ZHANG Qiang,et al.Industrial application of electrodialytic amine desalination purification technology in solvent regeneration system[J].Petrochemical technology & application,2023,3:201-205.
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电渗析胺液脱盐净化技术在溶剂再生系统的工业应用(PDF)

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

期数:
2023年3期
页码:
201-205
栏目:
出版日期:
2023-05-10

文章信息/Info

Title:
Industrial application of electrodialytic amine desalination purification technology in solvent regeneration system
文章编号:
1009-0045（2023）03-0201-05
作者:
宋亦伟; 张舒; 张强; 尹斌
（中国石化青岛石油化工有限责任公司，山东 青岛 266042）
Author(s):
SONG Yi-wei;  ZHANG Shu;  ZHANG Qiang; YIN Bin
（Qingdao Petrochemical Co Ltd，SINOPEC，Qingdao 266042，China）
关键词:
溶剂再生; 热稳态盐; 甲基二乙醇胺; 电渗析; 胺液净化; 脱硫率; 冲塔现象
Keywords:
solvent regeneration; thermostable salt; methyldiethanolamine; electrodialysis; amine purification; desulfurization rate; tower flushing phenomenon
分类号:
TE 626.21
DOI:
DOI：10.19909/j.cnki.ISSN1009-0045.2023.03.0201
文献标识码:
B
摘要:
分析了中国石化青岛石油化工有限责任公司2#溶剂再生系统再生塔发生操作异常波动及冲塔现象的原因，介绍了电渗析脱盐净化撬装设备的引入，及其电渗析胺液脱盐净化技术在该溶剂再生系统于2022年4月的净化应用情况。结果表明：实施该电渗析胺液脱盐净化技术后，系统胺液中含热稳态盐质量分数降低了1.64个百分点，降幅达72%；发泡高度降低了1.9 cm，消泡时间缩短了0.7 s；乙醇胺贫液中硫化氢质量浓度降低了0.12 单位，贫胺液中N-甲基二乙醇胺质量分数下降了0.58个百分点；经脱硫化氢后的干气，以及脱硫化氢、硫醇后的液化气产品质量均合格，截至2022年11月 30日，该装置的溶剂再生系统不仅实现了连续安稳运行，未发生操作异常波动及冲塔现象，再生塔塔底1.0 MPa加热蒸汽用量还降低了0.08 t/h。
Abstract:
The causes of abnormal operation fluctuation and tower flushing of the regeneration tower of the 2# solvent regeneration system of Qingdao Petrochemical Co Ltd，SINOPEC， were analyzed. The introduction of the skid-mounted equipment for electrodialytic desalination purification and the application of electrodialytic amine desalination purification technology in this solvent regeneration system in April 2022 were introduced. The results showed that since the implementation of electrodialytic amine desalination purification technology，the mass fraction of thermostable salt in the amine solution of the system decreased by 1.64 percentage points，with the decrement of 72%. Meanwhile，the foaming height dropped by 1.9 cm and the defoaming time decreased by 0.7 s. The mass concentration of hydrogen sulfide in the lean amine solution decreased by 0.12 unit，and the mass fraction of N-methyldiethanolamine in the lean amine solution decreased by 0.58 percentage points. In addition，the quality of dry gas after hydrogen sulfide removal and liquefied gas after hydrogen sulfide & mercaptan removal were both qualified. As of November 30，2022， the solvent regeneration system of the unit not only operated continuously and stably without abnormal operation fluctuation and tower flushing phenomenon，but also reduced 0.08 t/h of 1.0 MPa heating steam consumption at the bottom of the regeneration tower.

参考文献/References

［1］ 陈福勇.炼油厂脱硫装置技术改造［J］.天津化工，2005，19（4）：37-40.［2］ 高建兵，詹亚力，朱建化. 液化石油气脱硫技术［J］.天然气化工，2001，26（2）：37-41.［3］ 陈小南，施俊林. 焦化干气和液态烃脱硫系统问题分析及对策.［J］化学工业与工程技术，2009，30（1）：32-35.［4］ 顾福彪. 气体脱硫装置长周期优化措施［J］.化学工程与装备，2011，19（7）：56-58.［5］ 陈慧，万义秀，何明，等. 离子交换技术脱除胺液中热稳定盐的应用分析［J］.石油与天然气化工，2006，35（4）：298-299.［6］ 张锋镝. 电渗析脱盐过程中胺液损失的因素分析及改进措施［J］.能源化工，2019，40（1）：29-33.

备注/Memo

备注/Memo:
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更新日期/Last Update: 2023-05-10