液态烃中噻吩脱除剂的研制及工业放大  

Development and industrial amplification of removal agent for thiophene in liquid hydrocarbon

作　　者：刘佳 刘丹丹 LIU Jia;LIU Dan-dan(College of Environmental and Safety Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[1]沈阳化工大学环境与安全工程学院,辽宁沈阳110142

出　　处：《现代化工》2020年第9期204-208,共5页Modern Chemical Industry

摘　　要：采用离子交换法制备了一种吸附剂用以脱除炼厂C4烃类中的噻吩。将分子筛与凹凸棒分别于60℃进行液相改性12 h,改性溶液浓度分别为0.1、0.03 mol/L,改性结束后进行洗涤、抽滤、干燥,然后按照质量比3∶1混合,添加3%的硅溶胶作为黏结剂,滚球成型,干燥后于550℃焙烧4 h,制得成品。吸附剂对于模拟原料油中的噻吩具有较好的吸附性能,出口浓度可以达到2 ng/μL以下,且可多次再生。A sorbent is prepared by ion exchange method for removing thiophene from C 4 hydrocarbons in refinery.The best industrial preparation for the adsorbent are determined as follows:molecular sieve and attapulgite have respectively been modified in liquid phase at 60℃for 12 h,with concentrations of the modified solution being 0.1 mol·L^-1 and 0.03 mol·L^-1,respectively.The modified molecular sieve and attapulgite are washed,filtrated and dried,and then mixed up at a mass ratio of 3∶1.Adding 3%silica sol as a binder,the mixed materials are shaped via ball rolling,and dried at 550℃for 4 h to obtain a finished adsorbent product.It is identified through test that the adsorbent has good adsorption ability to thiophene in the simulated feedstock oil,the content of thiophene at exit can be reduced to below 2 ng·μL^-1,and the absorbent can be regenerated many times.

关 键 词：噻吩 吸附剂 再生 

分 类 号：TE991[石油与天然气工程—石油机械设备]