自吸式搅拌鼓泡反应器测定气液平衡数据

Determination of Gas-Liquid Equilibrium Data by Using Self-Sucking Type Agitated Reactor

本法集取了流动法和循环法的优点、具有测定速度快、设备结构紧凑、测控装置简单、操作方便等特点。在温度30～70℃、二氧化碳分压0.01～0.113 3MPa、N-甲基二乙醇胺(MDEA)浓度20～50%(wt)的条件下,测定了MDEA-CO_2-H_2O系统的相平衡数据。平衡时间仅为文献值的1/4～1/2。

The method with characteristics of compact structure of experiment equipment,1 rapidity of determination, simplicity of control system and convenience of operation has the advantages of both straight flow and circulation flow methods. Solubilities of carbon dioxide in 20%, 35% and 50% (wt%) aqueous solutions of N-methyldiethanolamine (MDEA) have been determined at temperatures ranging from 80 to 70℃ under carbon dioxide partial pressures ranging from 0.01 to 0.113 MPa. The determination of equilibrium data for MDEA solutions shows that the time required for reaching equilibria is only quarter to half as much as that required in other methods.