PDF《第34 卷第 8 期》

第34 卷第

8 期2014 年8月环境科学学报Acta Scientiae Circumstantiae Vol.

34,No.8 Aug.,

2014 基金项目: 国家自然科学基金(No.51278464) Supported by the National Natural Science Foundation of China(No.51278464) 作者简介: 吴春雷 (1991―),男,E?mail: S12031038@ hnu.edu.cn;

?通讯作者(责任作者),E?mail:yangc@ hnu.edu.cn Biography: WU Chunlei (1991―),male,E?mail: S12031038@ hnu.edu.cn;

?Corresponding author,E?mail:yangc@ hnu.edu.cn DOI:10.13671 / j.hjkxxb.2014.0615 吴春雷,杨春平,何慧军,等.2014.Fe/ Zn?TMS 体系吸收去除催化裂化干气中 H2 S 的性能[J].环境科学学报,34(8):1942?1948 Wu C L, Yang C P, He H J, et al. 2014.Performance of absorption removal of H2 S from FCC dry gas using Fe/ Zn?TMS system[ J].Acta Scientiae Circumstantiae,34(8):1942?1948 Fe / Zn?TMS 体系吸收去除催化裂化干气中H2 S 的 性能 吴春雷1,3 ,杨春平1,2,3,? ,何慧军1,3 ,龙智勇1,3 ,涂燕红1,3 1. 湖南大学环境科学与工程学院,长沙

410082 2. 浙江省固体废物处理与资源化重点实验室,浙江工商大学环境科学与工程学院,杭州

310012 3. 环境生物与控制教育部重点实验室(湖南大学),长沙

410082 收稿日期:2013?10?08 修回日期:2014?01?24 录用日期:2014?02?11 摘要:本研究采用FeCl3 ・6H2 O、ZnCl2 和环丁砜(TMS)复配形成的 Fe/ Zn?TMS 体系脱除催化裂化(FCC)干气中的 H2 S,并用 30% H2 O2 氧化再 生Fe/ Zn?TMS 体系.同时,研究了各活性成分比例、吸收液体积浓度、吸收液 pH 值等对脱硫效率的影响,以及 H2 O2 用量、吸收富液 pH 值对 Fe2+ 氧化率的影响.结果表明,n(FeCl3 ・6H2 O)∶n(ZnCl2 )∶n(TMS)为0.45∶0.55∶1,吸收液 pH 为0.75,体积浓度(W)为50%的条件下能长时间 高效脱硫,最高脱硫率达 99.9%;

在n(Fe2+ )∶n(H2 O2 )为2∶1,吸收富液 pH 为0.65 的条件下,Fe2+ 氧化率达 96.7%.体系可循环使用

3 次,且能耗 低、操作简单. 关键词:催化裂化干气;

Fe/ Zn?TMS 体系;

H2 S;

吸收;

氧化再生 文章编号:0253?2468(2014)08?1942?07 中图分类号:X512 文献标识码:A Performance of absorption removal of H2 S from FCC dry gas using Fe / Zn? TMS system WU Chunlei1,3 , YANG Chunping1,2,3,? , HE Huijun1,3 , LONG Zhiyong1,3 , TU Yanhong1,3 1. College of Environmental Science and Engineering, Hunan University, Changsha

410082 2. Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou

310012 3. Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha

410082 Received

8 October 2013;

received in revised form

24 January 2014;

accepted

11 February

2014 Abstract: Fe/ Zn?TMS (tetramethylene sulfone) system, which was consisted of FeCl3 ・6H2 O, ZnCl2 and TMS and regenerated with 30% H2 O2 , were used for adsorption removal of H2 S from fluid catalytic cracking (FCC) dry gas. The effects of percentage of each active ingredient, volume concentration and pH value of the absorbing liquid on H2 S removal were evaluated, and the impacts of H2 O2 dosage and pH value in the concentrate on oxidation rate of Fe2+ were also examined. Results showed that maximum H2 S removal rate of 99.9% was achieved and maintained for a long time at n(FeCl3 ・6H2 O)∶ n(ZnCl2 )∶n(TMS)= 0.45∶0.55∶1, absorption solution pH of 0.75, and volume concentration (W) of 50%. The oxidation rate of Fe2+ reached 96.7% at n(Fe2+ )∶n(H2 O2 )= 2∶1 and concentrate pH of 0.65. The absorbent could be reused for