Promotion Effect of Surfactant on Formation of Ethylene Hydrate

doi:10.3969/j.issn.1006-396X.2015.06.001

Journal of Petrochemical Universities ›› 2015, Vol. 28 ›› Issue (6): 1-8.DOI: 10.3969/j.issn.1006-396X.2015.06.001

(1.State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China; 2.College of Science, China University of Petroleum, Beijing 102249, China）

Received:2015-08-06 Revised:2015-10-11 Published:2015-12-25 Online:2015-12-07

表面活性剂促进乙烯水合物的实验研究

邓野¹, 王逸伟¹, 郭绪强¹, 刘爱贤², 孙强¹, 杨兰英¹

( 1. 中国石油大学( 北京) 重质油国家重点实验室,北京1 0 2 2 4 9; 2. 中国石油大学( 北京) 理学院,北京1 0 2 2 4 9)

通讯作者: 郭绪强( 1 9 6 3 - ) , 男, 博士, 教授, 博士生导师, 从事石油天然气加工、气体水合物等方面的研究; E - m a i l : g u o x q@c u p. e d u. c n。
作者简介:邓野( 1 9 9 0 - ) , 男, 硕士研究生, 从事气体水合物方面的研究; E - m a i l : d e n g y e 0 9 0 2@s i n a. c o m。
基金资助:
国家科技部9 7 3计划项目( 2 0 1 2 C B 2 1 5 0 0 5) ; 国家自然科学基金项目( 2 1 3 0 6 2 2 6) 。

Abstract

Abstract: In this paper, the promoting effect of green biological surfactant octylbetaDglucopyranoside on ethylene hydrate formation was experimentally investigated, in futher, the mechanism of promoting was also briefly explored. First, the effect of octylbetaDglucopyranoside on ethylene hydrate formation condition was researched. Then, the effect of octylbetaDglucopyranoside on ethylene hydrate formation rate and storage capacity was also tested. At last, the solubility of ethylene under the condition of phase equilibrium through Hysys was studied. The results show that compare with deionized water system, OctylbetaDglucopyranoside has little effect on ethylene hydrate formation in thermodynamics. While in the kinetics, it can dramaticlly decrease the induction time of ethylene hydrate formation and increase the rate of ethylene hydrate formation more than three times. In addition, the storage capacity can be increased by 50%, under the condition of 283.15 K and 2.20 MPa with storage capacity of 164.71, which is close to the theory storage volume. Under the condition of phase equilibrium, the dissolved value of ethylene in octylbetaDglucopyranoside solution is significantly higher than that in deionized water system, but is far less than the consumption of hydration.

Key words: Ethylene, , Biological surfactant, , OctylbetaDglucopyranoside, , Gas hydrate, , Promotion

摘要： 选取绿色、环保的生物型表面活性剂辛基葡糖苷作为乙烯水合物的生成促进剂进行实验研究, 并简要探究了其促进机理。首先考察了辛基葡糖苷对乙烯水合物生成条件的影响; 其次考察了辛基葡糖苷对乙烯水合物生成速率及储气量的影响; 最后利用 H y s y s考察了相平衡条件下乙烯的溶解性。结果表明, 与去离子水体系相比, 辛基葡糖苷的加入在热力学上对乙烯水合物的影响不大; 在动力学上可显著降低乙烯水合物诱导时间, 生成速率提升在3倍以上, 储气量的提升在5 0%左右, 其中2 8 3. 1 5K、 2. 2 0MP a下储气量达1 6 4. 7 1, 接近理论储气量; 相平衡条件下, 乙烯在辛基葡糖苷溶液中的溶解量显著高于去离子水体系, 但远低于水合反应的消耗量。

关键词: 乙烯, , 表面活性剂, 辛基葡糖苷, 气体水合物, , 促进作用

Deng Ye,Wang Yiwei, Guo Xuqiang,et al. Promotion Effect of Surfactant on Formation of Ethylene Hydrate [J]. Journal of Petrochemical Universities, 2015, 28(6): 1-8.

邓野, 王逸伟, 郭绪强. 表面活性剂促进乙烯水合物的实验研究[J]. 石油化工高等学校学报, 2015, 28(6): 1-8.

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