HCFC141b乳液及微乳液体系水合物生成过程实验研究

李娜; 郭云飞; 覃小焕; 彭喜魁

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HCFC141b乳液及微乳液体系水合物生成过程实验研究

更新时间：2025-07-09

- HCFC141b乳液及微乳液体系水合物生成过程实验研究
- Experimental Study on Hydrate Formation Process from HCFC141b Emulsion and HCFC141b Micro-Emulsion
- 西安交通大学学报 2010年44卷第2期页码：119-124
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2009-06-25. 作者简介: 李娜(1969-), 女, 副教授, 博士生导师. 基金项目: 国家“973计划”资助项目(2009CB2199006)
- DOI：
  中图分类号： TK121;O643.12
- 网络首发：2010-02-10，
  
  纸质出版：2010
- 稿件说明：
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李娜, 郭云飞, 覃小焕, 等. HCFC141b乳液及微乳液体系水合物生成过程实验研究[J]. 西安交通大学学报, 2010,44(2):119-124.

Experimental Study on Hydrate Formation Process from HCFC141b Emulsion and HCFC141b Micro-Emulsion[J]. 2010, 44(2): 119-124.
李娜, 郭云飞, 覃小焕, 等. HCFC141b乳液及微乳液体系水合物生成过程实验研究[J]. 西安交通大学学报, 2010,44(2):119-124. DOI：

Experimental Study on Hydrate Formation Process from HCFC141b Emulsion and HCFC141b Micro-Emulsion[J]. 2010, 44(2): 119-124. DOI：

摘要

为促进制冷剂快速生成水合物

首先利用高剪切混合乳化机制备HCFC141b乳液来增大两相界面

考察了剪切乳化时间、环境浴温度、HCFC141b浓度、“记忆效应”和高浓度表面活性剂对HCFC141b乳液水合反应过程的诱导时间和过冷度的影响.以此为基础

由T20/卵磷脂复配表面活性剂和T80研制热力学稳定的HCFC141b微乳液来提高两相相容性

揭示了HCFC141b微乳液水合反应过程中的晶体生长特征.微乳液中HCFC141水合物晶体均匀快速生长

与乳液水合反应相比

其诱导时间和过冷度大大减小.该研究为有效促进水合物结晶开辟了新途径.

Abstract

The way by increasing the interface and compatibility between refrigerant and water to promote the rapid formation and growth of refrigerant hydrate is investigated. HCFC141b emulsion was prepared by high-pressure cutting method to increases the interface. The influencing factors

including emulsification time

bath temperature

HCFC141b content‘memory effect' and high-concentration surfactants

on induction time and supercooling degree of HCFC141b hydration are studied. Then

the thermodynamically stable HCFC141b micro-emulsion is successfully prepared with aid of T20/lecithin compound surfactants and T80 single surfactant to increase the compatibility of refrigerant and water. The characteristics of hydrate formation of HCFC141b micro-emulsion were revealed. The results have shown that low bath temperature

optimum HCFC141b mass concentration as well as long emulsification time are conducive to hydrate formation form HCFC141b emulsion; the ‘memory effect' has an important role in the promotion of hydration but does not accumulate; the surfactants T20

T80

SDS

SDBS and soybean lecithin have different influencing degrees on the promotion of hydration and there exists an idea concentration of each surfactant; HCFC141b can form hydrate rapidly and uniformly in the micro-emulsion. Compared with that of hydrate formed form HCFC141b emulsion

the induction time and supercooling degree of hydration form HCFC141b micro-emulsion are greatly reduced

which indicates that increasing the compatibility of refrigerant and water by preparation of micro-emulsion is a new way to promote refrigerant hydrate crystallization.

关键词

Keywords

references

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