西南石油大学学报(自然科学版) ›› 2017, Vol. 39 ›› Issue (3): 173-179.DOI: 10.11885/j.issn.1674-5086.2016.03.23.03

• 石油机械与油田化学 • 上一篇    下一篇

空间位阻胺脱硫选择性及再生性能的研究

李云涛1,2, 李露露2, 李辉2, 张智1, 徐计雷2   

  1. 1. "油气藏地质开发工程"国家重点实验室·西南石油大学, 四川 成都 610500;
    2. 西南石油大学材料科学与工程学院, 四川 成都 610500
  • 收稿日期:2016-03-23 出版日期:2017-06-01 发布日期:2017-06-01
  • 通讯作者: 李云涛,E-mail:yuntaoli@swpu.edu.cn
  • 作者简介:李云涛,1975年生,男,汉族,甘肃兰州人,教授,博士生导师,主要从事高分子材料及其复合材料的研究。E-mail:yuntaoli@swpu.edu.cn李露露,1990年生,女,汉族,四川西昌人,硕士,主要从事空间位阻胺选择脱硫性能的研究。E-mail:Lilulu_2013@126.com;李辉,1983年生,男,汉族,河北石家庄人,讲师,主要从事高分子合成、高分子材料和复合材料研究。E-mail:lihui4551830@126.com;张智,1976年生,男,汉族,四川南充人,教授,博士生导师,主要从事油气井建井工程与安全教学研究工作。E-mail:wisezh@126.com;徐计雷,1986年生,男,汉族,山东菏泽人,硕士,主要从事高分子材料方面的研究工作。E-mail:xjc0356@126.com
  • 基金资助:
    四川省教育厅高校科研创新团队项目(16TD0009);西南石油大学校级科研创新团队项目(2013XJZT005)

Desulfurization Selectivity and Regeneration Studies of Sterically Hindered Amines

LI Yuntao1,2, LI Lulu2, LI Hui2, ZHANG Zhi1, XU Jilei2   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    2. School of Material Science and Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
  • Received:2016-03-23 Online:2017-06-01 Published:2017-06-01

摘要: 设计搭建了一套用于测评空间位阻胺脱硫选择性的装置,在CO2存在的条件下考察了3种位阻胺TBE(叔丁氨基乙醇)、TBDEE(叔丁氨基二乙氧基乙醇)和AMP(2-氨基-2-甲基-1-丙醇)水溶液的脱硫选择性和再生性能随时间的变化规律。研究发现,3种位阻胺对H2S的吸收率均大于CO2,且H2S吸收率和脱硫选择性随反应时间的延长呈先增大后减小的变化趋势。TBE具有最好的脱硫选择性,其选择因子在22 min时达到最大值34。最后,通过加热回流的方法对胺液进行解吸再生,考察解吸时间对胺液再生性能的影响。结果表明,胺液经过再生后的脱硫选择性低于新鲜胺液。AMP具有最好的再生性能,经过1 h再生后对H2S仍具有85%的吸收率。

关键词: 空间位阻胺, H2S, CO2, 脱硫选择性, 再生

Abstract: A set of devices was designed and constructed for the desulfurization selectivity studies of sterically hindered amines. In the presence of CO2, the changing patterns of the desulfurization selectivity and regeneration over time of three aqueous sterically hindered amines-TBE (tert-butylaminoethanol), TBDEE (tert-butylaminodiethoxyethanol), and AMP (2-amino-2-methyl-1-propanol)-were investigated. The results showed that the absorption rate of H2S for all three sterically hindered amines was higher than that of CO2 and the H2S absorption rate and desulfurization selectivity initially increased but decreased over prolonged time periods. TBE showed the highest desulfurization selectivity, and its selectivity reached a maximal value of 34 at 22 min. Finally, the desorption regeneration of these amine solutions was carried out via heating reflux, and the effects of desorption duration on the regeneration capacity of amine solutions were studied. The results showed that the desulfurization selectivity of regenerated amine solutions was lower than that of fresh amine. AMP showed the highest regeneration capacity, for which 85% of the absorption rate for H2S was retained even after 1 h of regeneration.

Key words: sterically hindered amines, H2S, CO2, desulfurization selectivity, regeneration

中图分类号: