次氯酸钠溶液清净乙炔气的实验研究  

Study on the purification of acetylene gas by sodium hypochlorite

作　　者：尚国隆 张伟 钟洁水 杨霞[1] SHANG Guo-long;ZHANG Wei;ZH;YANG Xia(Research Center for Computer and Chemical Engineering,Qingdao University of Science and Technology,Qingdao 266042,Shandong,China;Gansu Yinguang Juyin Chemical Engineering Co.,LTD,Baiyin 730900,Gansu,China;Yinke Hengyuan Chemical Engineering and Information Technology Co.,LTD,Qingdao 266042,Shandong,China)

机构地区：[1]青岛科技大学计算机与化工研究所,山东青岛266042 [2]甘肃银光聚银化工有限公司PVC厂,甘肃白银730900 [3]青岛银科恒远化工过程信息技术有限公司,山东青岛266042

出　　处：《中国氯碱》2018年第6期15-18,42,共5页China Chlor-Alkali

摘　　要：建立了采用次氯酸钠(NaClO)溶液对电石法产生的粗乙炔气中的硫化氢、磷化氢气体杂质进行氧化吸收的实验装置,研究了次氯酸钠溶液有效氯浓度和pH值对清净效果的影响。实验结果表明,次氯酸钠溶液有效氯浓度和pH值对硫化氢的去除效果比磷化氢显著;在乙炔气清净初期,次氯酸钠溶液的pH值起到关键作用。综合考虑清净效果及生产安全两个因素,硫、磷去除率均在85%以上时的工艺条件为次氯酸钠溶液的pH值为7~9.5,有效氯含量在0.085%~0.12%。An experimental devices are established for the oxidation absorption of H_2S and PH_3 by NaClO in acetylene that produced by calcium and water. The effects of purification of p H value and active chlorine content of NaClO are studied. The results show that p H value and active chlorine content of NaClO have a more significant effect on the absorption of H2S than PH3;p H value plays an important role on the purification in the early purification period. Considering both removing rate and safety in the production,the optimal industrial operational conditions are as follows：pH7 ~9.5,active chlorine content 0.085% ~0.12%,which could remove more than 85% of H_2S and pH_3 of the crude acetylene.

关 键 词：次氯酸钠 乙炔气清净 硫化氢 磷化氢 

分 类 号：TQ221.242[化学工程—有机化工]