乙二醇溶液中高溶解度盐脱除工艺模拟.

In the development of deepwater gas field, ethylene glycol is commonly used as hydrate inhibitor. Large amounts of salt contained in produced water caused scaling in the treatment of rich glycol liquid with high salt in common ethylene glycol regeneration system,which has serious impact to the offshore production system, even lead to suspend production. Therefore, the process of salt removal from ethylene glycol is supposed to be one part of ethylene glycol regeneration system for deepwater gas production. Models of the process of high solubility salt removal from ethylene glycol have been developed in process simulation program Aspen Plus, through which the effect of recycle temperature, ethylene glycol recycle flow rate, and water content of ethylene glycol on the salt removal process have been simulated and analyzed. The results showed that the salt removal process made a good performance with appropriate process parameters such as the flash pressure（absolute） of 0.15 MPa, the recycle heated temperature of 141~145 ℃, and the recycle flow rate is 60 times of the feed rate. [ABSTRACT FROM AUTHOR]