摘要
本文描述了带透平膨胀机制冷天然气提氦的新工艺,代替焦尔-汤姆逊节流效应的制冷循环。该法制冷设备少分离流程短;产冷量自给,勿需外加冷剂;分离氮后近50％的天然气在自身较高压力下直接输出,节能效果较好;提取的粗氦浓度高、氦回收率高,技术经济指标较为合理。
The new technique of extracting He from natural gas with turbine expander refrigerating is intro- duced in this paper, which can replace the refrigeration cycle of Joule-Thomsom throttling effect and has the advantages such as less refrigeration equipments, short seperating process, refrigeration yield sulf-sufficency, high density of extracted crude He, high He recovery rate as well as reasonable index of technology and economic.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1993年第5期82-86,共5页
Natural Gas Industry
关键词
天然气
提氦气
膨胀制冷
extracting crude He from natural gas
expanding refrigeration
isoentropic efficiency
cold loss throtting effect
plate heat exchanger
temperature difference of the thermo-end
