化工进展 ›› 2016, Vol. 35 ›› Issue (08): 2609-2614.DOI: 10.16085/j.issn.1000-6613.2016.08.49

• 应用技术 • 上一篇    下一篇

微萃取-聚结分离技术在碳四脱甲醇中的应用

刘森1, 杨强1, 张学清2, 苗志强2   

  1. 1. 华东理工大学化学工程联合国家实验室, 上海 200237;
    2. 寿光市联盟石油化工有限公司, 山东 寿光 262700
  • 收稿日期:2015-11-09 修回日期:2015-12-25 出版日期:2016-08-05 发布日期:2016-08-05
  • 通讯作者: 杨强,副教授,E-mail:qyang@ecust.edu.cn。
  • 作者简介:刘森(1992—),硕士研究生。E-mail:liusen4312@163.com。
  • 基金资助:
    国家自然科学基金项目(51208200)、基本科研业务费交叉学科与重大项目培育基金(222201313001)及上海市晨光计划(13CG26)。

Removal of methanol in carbon four by microextraction-colescence separation technology

LIU Sen1, YANG Qiang1, ZHANG Xueqing2, MIAO Zhiqiang2   

  1. 1. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China;
    2. Shouguang Lianmeng Petrochemical Co., Ltd., Shouguang 262700, Shandong, China
  • Received:2015-11-09 Revised:2015-12-25 Online:2016-08-05 Published:2016-08-05

摘要: 针对某石化公司混合碳四深加工项目中因甲醇水洗塔效率的局限性而导致混合碳四中甲醇含量超标的问题,开发了一种混合微萃取耦合模块化深度聚结分离的碳四脱甲醇的成套技术设备,并在某石化公司现场进行中试侧线实验研究。实验结果表明,该成套设备在进出口压降为5kPa,注水比例为5%,停留时间180s以内:对入口甲醇含量分别为300~400μL/L,1200~1400μL/L和40000~50000μL/L的混合碳四,出口甲醇含量为10~30μL/L、50~100μL/L和4000~5000μL/L;分离效率分别为96%、95%及88%以上。分离迅速且在较宽的操作弹性范围内表现出深度分离甲醇的能力及低压降的特点,表明了该技术在碳四水洗脱甲醇系统中具有良好的适用性,为混合碳四分离甲醇提供了新思路。

关键词: 碳四, 微萃取, 聚结分离, 甲醇

Abstract: To solve the limitations of methanol washing tower efficiency and the problem of excessive amounts of methanol content in the mixed carbon four in a mixed carbon four deep processing project in a petrochemical company,a complete sets of technical equipment of a hybrid micro extraction coupled modular depth of coalescence separation is developed for removal of methanol in the carbon four. The pilot test is performed at a side line of the petrochemical company. The experimental results show that at the inlet and outlet pressure drop of 5kPa,water injection 5%,retention time within 180s and the inlet methanol content of 300—400μL/L,1200—1400μL/L and 40000—50000μL/L in the mixed carbon four,the outlet methanol content is 10—30μL/L,50—100μL/L and 4000—5000μL/L with a separation efficiency higher than 96%,95% and 88%,respectively. The features of deep and quick separation ability of methanol with low pressure drop at a wider range of elasticity of operation show that the technology has a good applicability in the system of water elution of methanol in carbon four,providing a new way of separating the mixed carbon four and methanol.

Key words: carbon four, micro-extraction, coalescence separation, methanol

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