摘要
在对MDEA溶液中各种杂质组分的分析基础上,通过发泡实验考察了操作条件及各种杂质组分对溶液发泡性能的影响。随着MDEA浓度、MDEA溶液温度的逐渐降低,发泡高度及消泡时间逐渐增大;另外随着通气流率和溶液中CO2 负荷的增大,MDEA溶液发泡高度及消泡时间也逐渐增大。考察了NaCl、CaCl2、FeSO4 等无机盐对MDEA溶液发泡性能的影响。MDEA溶液中有机杂质甲醇、三甘醇、重烃对MDEA溶液则具有一定的消泡作用,而气井缓蚀剂无疑是强的发泡剂。残液的加入使纯净的MDEA溶液发泡性能大幅度地增加,验证了MDEA溶液受到了污染是造成溶液发泡的主要原因。最后对MDEA溶液发泡提出了相应的处理措施和建议。
Based on the analysis of various impurities in WDEA-solution the influence of the operating conditions and the various impurities on the foaming performance is investigated with foaming experiments. As the MDEA concentration and the temperature of MDEA solution decrease gradually, the foaming heights and foam-breaking time increase. Also, as the flow rate of the feed gas and the CO2 load of the solution increase, the foaming heights and foam-breaking time of MDEA solution increase gradually too. The effects of the inorganic salts such as NaCl, CaCl2 and FeSO4 etc. on the foaming performance of WDEA solution are investigated. The organic impurities in WDEA solution such as methanol, triglycol, and heavy hydrocarbon have some foam-breaking function. The corrosion inhibitor of gas wells is strong foamgenerating agent. The foam-generating ability is largely increased when the residual liquid of the inhibitor enters into WDEA solution. It is demonstrated the major reason of foam generating in the solution is that WDEA solution is polluted. At last, the countermeasures and suggestions are proposed to control foaming in WDEA solution.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2005年第4期171-174,共4页
Natural Gas Industry
关键词
长庆气田
MDEA脱硫溶液
发泡现象
处理方法
醇胺法
胺溶液
Blowing agents
Confined flow
Desulfurization
Hydrocarbons
Industrial plants
Natural gas
Purification
Solutions
Temperature measurement
