有机胺溶液吸收SO_2的研究  

Experimental Study on Sulfur Dioxide Absorption with Amine Solution

作　　者：薛娟琴[1] 官欣[1] 王永亮[1] 孟令嫒[1] 王玉洁[1] 

机构地区：[1]西安建筑科技大学冶金工程学院,西安710055

出　　处：《有色金属（冶炼部分）》2009年第6期10-13,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金项目(50874087);陕西省自然科学基金项目(2006E106);陕西省自然科学专项基金(07JK302)

摘　　要：提出了常压下在鼓泡式反应器中以三种不同的有机胺（乙二胺、二乙烯三胺及三乙烯四胺）溶液作为吸收剂进行吸收及解吸SO2的新工艺。探讨了二乙烯三胺-胺-水多元体系在吸收SO2过程中的特性，考察了溶液初始pH、吸收剂浓度、有机胺配比等因素对SO2吸收量的影响规律，确定了实验室规模下适宜的最佳吸收条件：温度30～40℃，初始pH6～7，吸收液浓度（有机胺／水）为5／200～8／200（体积比），二乙烯三胺／三乙烯四胺体积比为4／1。A new approach of absorbing sulfur dioxide by using amine solution is proposed at atmosphere. Three kinds of organic amine （ethylenediamine, diethylenetriamine, triethylenetetramine） are used as absorbents to absorb sulfur dioxide in the bubbling reactor. The multi-system of triethylenetetramine-amines-water solution used in absorbing sulfur dioxide is innvestigated. The factors of the initial pH value, the absorbent concentration and the ratio of organic amine on the absorption of sulfur dioxide are studied. The results show that the optimal experimental parameters for absorbing sulfur dioxide are： the initial pH is about 6-7, the concentration of organic amine is about 5/200-8/200 （volumetric ratio）, the ratio of diethylenetriamine to triethylenetetramine is 4/1. Under such conditions, the organic amine solution resuts in the best efficiency of absorbing sulfur dioxide.

关 键 词：有机胺 吸收 解吸 二氧化硫 二乙烯三胺 

分 类 号：X701[环境科学与工程—环境工程]