鼓泡器中环戊烷-甲烷-盐水体系水合物的生成动力学

doi:10.16085/j.issn.1000-6613.2016.12.007

化工进展 ›› 2016, Vol. 35 ›› Issue (12): 3777-3782.DOI: 10.16085/j.issn.1000-6613.2016.12.007

鼓泡器中环戊烷-甲烷-盐水体系水合物的生成动力学

吕秋楠^1,2,3, 宋永臣¹, 李小森^2,3

1 大连理工大学海洋能源利用与节能教育部重点实验室, 辽宁大连 116024;
2 中国科学院广州能源研究所, 中国科学院天然气水合物重点实验室, 广东广州 510640;
3 中国科学院广州能源研究所, 广东省新能源和可再生能源研究开发与应用重点实验室, 广东广州 510640

收稿日期:2016-04-26 修回日期:2016-08-17 出版日期:2016-12-05 发布日期:2016-12-05
通讯作者: 李小森,博士,研究员,博士生导师,主要从事天然气水合物方面的研究。E-mail:lixs@ms.giec.ac.cn。
作者简介:吕秋楠(1982-)女,硕士,研究助理。
基金资助:
国家杰出青年科学基金（51225603）、国家自然科学基金（51506203）及国际科学合作计划（2015DFA61790）项目。

Formation kinetics of cyclopentane-methane hydrate in NaCl solution with a bubbling equipment

LÜ Qiunan^1,2,3, SONG Yongchen¹, LI Xiaosen^2,3

1 Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian 116024, Liaoning, China;
2 Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China;
3 Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, Guangdong, China

Received:2016-04-26 Revised:2016-08-17 Online:2016-12-05 Published:2016-12-05

摘要/Abstract

摘要： 采用鼓泡装置研究了盐水体系中环戊烷（CP）-甲烷水合物的生成动力学，分别考察了进气速率、温度、压力对水合物生成速率和进气速率对气体转化率的影响。结果显示，提高进气速率、压力，降低温度均可提高水合物生成速率。但进气速率对气体转化率有影响，进气速率过大，单位时间内进入到反应器内的气体过多，气体还未参与反应便被排出，导致气体转化率反而减小。通过观察到的实验现象，分析环戊烷-甲烷水合物的生成过程，认为水合物晶体首先在环戊烷-水界面生成，并逐步向内部气相生长，最后水合物壳破裂，气泡逸出。水合物逐渐生长成粒状，并不断聚集在一起。

关键词: 鼓泡, 环戊烷, 甲烷, 水合物, 动力学

Abstract: The formation kinetics of cyclo-pentane(CP)-methane hydrate in NaCl solution were studied using a bubbling equipment. The effect of gas-flow rate,temperature and pressure on the hydrate formation rate and the effect of gas-flow rate on the gas conversion rate were investigated. The results showed that increasing the gas-flow rate,pressure and decreasing the temperature could enhance the hydrate formation rate. But the gas-flow rate affected the gas conversion rate. If the gas-flow rate was too high,the gas entering the reactor was discharged before completing the reaction,which yielded the low gas conversion rate. The observation of the process of CP-CH₄ hydrate found thatthe hydrate crystals first generated in the CP/water interface,then grew gradually in internal gas phase until the hydrate shell broke and the bubbles escaped.

Key words: bubble, cyclopentane, methane, hydrate, kinetics

中图分类号:

TE89

吕秋楠, 宋永臣, 李小森. 鼓泡器中环戊烷-甲烷-盐水体系水合物的生成动力学[J]. 化工进展, 2016, 35(12): 3777-3782.

LÜ Qiunan, SONG Yongchen, LI Xiaosen. Formation kinetics of cyclopentane-methane hydrate in NaCl solution with a bubbling equipment[J]. Chemical Industry and Engineering Progress, 2016, 35(12): 3777-3782.

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鼓泡器中环戊烷-甲烷-盐水体系水合物的生成动力学

Formation kinetics of cyclopentane-methane hydrate in NaCl solution with a bubbling equipment

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