低温甲醇洗部分 一、概 述-------------------------------------------------------------------------------------------------------------------- 1、酸性气体的来源---------------------------------------------------------------------------------------------------- 2、脱除酸性气体的必要性------------------------------------------------------------------------------------------- 3、脱除酸性气体的方法---------------------------------------------------------------------------------------------- 4、甲醇的物理、化学性质------------------------------------------------------------------------------------------ 5、低温甲醇洗的优、缺点------------------------------------------------------------------------------------------ 二、理论基础----------------------------------------------------------------------------------------------------------------- 1、拉乌尔定律和亨利定律------------------------------------------------------------------------------------------ 2、各种气体在甲醇中的溶解度------------------------------------------------------------------------------------ 三、工艺过程及原理-------------------------------------------------------------------------------------------------------- 1、脱水------------------------------------------------------------------------------------------------------------------ 2、CO2、H2S 的吸收------------------------------------------------------------------------------------------------- 3、富甲醇液的再生及H2、CO2、H2S 的回收------------------------------------------------------------------ (1) 一级减压闪蒸------------------------------------------------------------------------------------------------------ (2) 二级减压闪蒸----------------------------------------------------------------------------------------------------- (3) H2S 组份的浓缩--------------------------------------------------------------------------------------------------- (4) 加热再生---------------------------------------------------------------------...
