| 二氧化碳气体水合物生成特性的实验研究 |
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| 引用本文： | 刘妮,张国昌,R E 罗杰斯. 二氧化碳气体水合物生成特性的实验研究[J]. 上海理工大学学报, 2007, 29(4): 405-408 |
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| 作者姓名： | 刘妮 张国昌 R E 罗杰斯 |
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| 作者单位： | 上海理工大学,动力工程学院,上海,200093;密西西比州立大学,化学工程学,斯塔克维尔,MS39762 |
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| 基金项目： | 上海市重点学科建设项目;上海市教委资助项目 |
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| 摘 要： | 在小型高压水合物反应装置上研究了二氧化碳水合物的生成特性.实验结果表明,静态系统下,二氧化碳气体在纯水体系中的生成速率非常缓慢,只在气-液界面处有一薄层浆状水合物生成.通过添加适当的表面活性剂可以有效改善气-水体系的传质阻力,增加气-水接触面,显著提高水合物的生成速率.
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| 关 键 词： | 气体水合物 二氧化碳 表面活性剂 生成速率 |
| 文章编号： | 1007-6735（2007）04-0405-04 |
| 修稿时间： | 2006-04-02 |
Experimental study of CO2 gas hydrates formation |
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| LIU Ni,ZHANG Guo-chang,R E ROGERS. Experimental study of CO2 gas hydrates formation[J]. Journal of University of Shanghai For Science and Technology, 2007, 29(4): 405-408 |
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| Authors: | LIU Ni ZHANG Guo-chang R E ROGERS |
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| Affiliation: | 1. College of Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China ; 2. Department of Chemical Engineering, Mississippi State University, Starkville MS39762, USA |
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| Abstract: | The properties of CO2 gas hydrate formation were investigated with a high-pressure test cell.Organo silicone surfactants Silwet L-77 and Silwet 408 were used in the test.The results demonstrate that the formation rate of CO2 hydrate is rather slow in a quiescent system without surfactant,and hydrates are formed only at the gas-water interface.Surfactant solution can decrease the gas-liquid mass transfer resistance and improve CO2 hydrate formation rate obviously,but the induction time is less pronounced.Surfactant Silwet L-77 with 0.1% concentration is the most effective,which increases CO2 hydrate formation rate about 4 times comparing to that without surfactant. |
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| Keywords: | gas hydrate carbon dioxide surfactant formation rate |
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