摘要
实验室模拟了实际生产中的天然气制冷系统,对乙二醇介质的黏度、表面张力、相组成、矿化度等作了分析检测,研究了发泡原因,对适合该制冷系统的消泡剂进行了筛选优化,并进行了复合型消泡剂的研制,制备了复合型有机硅乳液消泡剂YFB。通过室内实验得出了消泡剂各组分的合适配比:二甲基硅油20.0%、二氧化硅2.5%、复合乳化剂(Span-60、Tween-60)3.0%、液体石蜡3.0%、分散剂20%,去离子水余量。该消泡剂在温度为-5℃时的消泡速率达到了28.4mm/s,在-25℃时的消泡速率也在20mm/s以上。实验还表明,YFB复合消泡剂在弱碱性溶液中的消泡速率更高,达到30.0mm/s。
Natural gas refrigerating system has been simulated in laboratorial test. The viscosity,surface tension, phase component,salinity of ethylene glycol has been detected. Meanwhile, the foaming reasons have been studied and defoamers which adapt to the refrigeration system were optimized, the compound defoamers and the organic silicon emulsifier defoamer-YFB have been researched and produced. The following is proper proportion of the defoamers: 20% dimethyl silicon oil, 2.5% silicon dioxide, 3.0% compound emulsifier (S-60,T-60), 3.0% liquid paraffin, 20% dispersant,others are distilled water. The defoaming velocity of this defoamer can reach 28.4 mm/s at -5 ℃ and higher than 20 mm/s at -25 ℃.The experiment indicated that the defoaming velocity can reach as high as 30.0 mm/s in the alkalescence solution. (Financed by Natural Science Fund of Heilongjiang Province, B0310)
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2006年第3期131-133,共3页
Natural Gas Industry
基金
黑龙江省自然科学基金(B0310)资助
关键词
低温
制冷
系统
泡沫
消泡剂
乙工醇
二甲基硅油
乳化
low temperature, refrigeration, system, foam, defoamer, ethylene glycol, dimethyl silicon oil, emulsification
