粘胶纤维生产中低浓度H_2S气体的应用  

The Application of Low Concentration H_2S Gas from Viscose Fiber Production

作　　者：王兵[1,2,3] 张海英[1] 尚书勇[2,3,4] 梅丽[3,4] 游玲[5] 

机构地区：[1]宜宾学院中国酒文化学院,四川宜宾644007 [2]宜宾学院博士后创新实践基地,四川宜宾644007 [3]宜宾学院化学工程与技术研究所,四川宜宾644007 [4]宜宾学院化学与化工学院,四川宜宾644007 [5]宜宾学院发酵资源与应用四川省高校重点实验室,四川宜宾644007

出　　处：《宜宾学院学报》2014年第6期66-70,共5页Journal of Yibin University

基　　金：宜宾市引进高层次人才项目(2010YG02);宜宾学院重点科研项目(2013QD01)

摘　　要：以粘胶纤维厂生产过程中产生的含硫废气为研究对象,采用活性石灰乳液选择性吸收H_2S并制备硫脲的技术,通过对该工艺过程中的参数进行研究,得到了最佳工艺参数,当生石灰浓度为20%(wt)、H_2S浓度为5 000 mg/m^3、气体流速为5 m/s、吸收时间为20h、Ca(SH)_2浓度为120g/L、反应温度为85C、反应时间为3 h,CaCNJCa(SH)_2摩尔比为2.1:1时,成功制备了99.6%的硫脲晶体,证实了低浓度含硫废气中H_2S气体资源利用的可行性.The waste gas containing sulfur of viscose fiber plant in the production process was explored.The H2S gas of the waste gas was selectively aborted by the emulsion of the activated lime and then the thiourea was prepared.Some key parameters which influenced the process of absorption and reaction were investigated.The best process parameters were obtained.When the lime concentration is 20%（wt）,the concentration of H_2S is 5 000 mg/m^3,the gas flow rate is 5 m/s,the absorption time is 20 h,the Ca（SH）2 concentration is 120 g/L,the reaction temperature is 85℃,the reaction time is 3 h,CaCN2/Ca（SH）2（m/m） is 2.1：1,the thiourea is successfully prepared.The results confirm that the low concentration H_2S gas resource of sulfur-containing waste gas can be successfully utilized.

关 键 词：粘胶纤维 H2S 利用 石灰 硫脲 

分 类 号：TQ341.168[化学工程—化纤工业]