煤基合成气(CO＋H2)合成二甲醚 ——产品分离中传质的研究

摘要

During the DME absorption by means of sol vent, the effect ofoperation conditions including pressure,temperature, linear velocity of empty column, DME content of the inlet gas and rate of gas to liquid(G/L) on DME vol umetric gas-side mass transfer coefficient(Kyα) were inves tigated. The results indicated that the Kyα value increased with the increasing of pressure, linear velocity of empty column, DME content of the inlet gas; the Kyα value decreased with increasing of temperature and G/L.%在溶剂法回收二甲醚过程中，考察了吸收压力、气液比G/L、空塔线速、进塔气体中的DME浓度以及吸收温度等因素对DME体积传质系数Kyα的影响。结果表明：随着吸收压力、空塔线速、进塔气体中DME浓度的增加，Kyα值上升；随吸收温度和G/L的升高，Kyα值降低。