MDEA水溶液对H_2S和CO_2混合气体吸收速率的测定  

Determination of the Absorption Rate of H_2S and CO_2 in MDEA Aqueous Solution

作　　者：陈建良[1] 马正飞[1] 纪宏宸[2] 沈玉林[2] 顾惠强 夏龙[2] 张振宇[2] 

机构地区：[1]南京工业大学,江苏南京210009 [2]扬子石油化工股份有限公司贮运厂,江苏南京210048

出　　处：《天然气化工—C1化学与化工》2007年第4期74-78,共5页Natural Gas Chemical Industry

摘　　要：采用实验方法,测定了20℃时N-甲基二乙醇胺(MDEA)水溶液对H2S、CO2纯气体以及H2S和CO2混合气的初始吸收速率。结果表明,H2S和CO2初始吸收速率分别为8.31×10-3mol.s-1.m-2和1.90×10-3mol.s-1.m-2;吸收H2S和CO2混合气,各组分的初始吸收速率与其分压成线性关系。得到了MDEA溶液吸收H2S和CO2混合气的速率表达式。The absorption rates of H2S and/or CO2 in N-methyldiethanolamine （MDEA） aqueous solution at temperature of 20℃ were measured by experiments. The results indicated that the initial absorption rate of pure H2S and CO2 were 8.31 × 10^ -3 mol · s^ -1 · m^2 and 1.90× 10^ -3 mol· s^ -1· m^ -2 respectively. In the case of the mixed gases absorbed with the MDEA aqueous solution, the initial absorption rates of each component in the mixed gases were linear with its partial pressure in the mixed gases. The absorption rate expression of the mixed gases was given.

关 键 词：N-甲基二乙醇胺 MDEA 硫化氢 二氧化碳 吸收速率 

分 类 号：TQ028[化学工程]