化工学报 ›› 2022, Vol. 73 ›› Issue (1): 275-283.DOI: 10.11949/0438-1157.20211039

• 催化、动力学与反应器 • 上一篇    下一篇

高炉煤气中羰基硫水解吸附催化剂的制备及性能研究

马铭宇1,2(),王超3,李运甲4,李长明5,刘雪景1,高士秋2,余剑2()   

  1. 1.沈阳化工大学化学工程学院,辽宁 沈阳 110142
    2.中国科学院过程工程研究所多相复杂系统国家重点实验室,北京 100190
    3.中国石油大学(北京)重质油国家重点实验室,北京 102249
    4.北京航天环境工程有限公司,北京 102300
    5.北京工商大学生态环境学院,北京 100048
  • 收稿日期:2021-07-23 修回日期:2021-10-11 出版日期:2022-01-05 发布日期:2022-01-18
  • 通讯作者: 余剑
  • 作者简介:马铭宇(1997—),男,硕士研究生,ma-mingyu@foxmail.com

Preparation and performance study of catalyst for COS hydrolysis and adsorption in blast furnace gas

Mingyu MA1,2(),Chao WANG3,Yunjia LI4,Changming LI5,Xuejing LIU1,Shiqiu GAO2,Jian YU2()   

  1. 1.College of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, Liaoning, China
    2.Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
    3.State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
    4.Beijing Aerospace Environmental Engineering Co. , Ltd. , Beijing 102300, China
    5.School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
  • Received:2021-07-23 Revised:2021-10-11 Online:2022-01-05 Published:2022-01-18
  • Contact: Jian YU

摘要:

以移动床活性焦烟气净化工艺运转中产生的磨损废活性焦(EAC)为原料制备羰基硫COS)水解吸附材料,结合XRD、TG、BET、TPD、FTIR、SEM、XPS手段对EAC进行表征,发现磨损废焦具有发达的表面孔道结构与丰富的表面官能团,比表面积达445.38 m2/g。研究不同碱量改性及工艺参数对COS催化水解脱除效率的影响,结果表明在100℃下,负载0.450%NaOH时EAC催化剂活性最强,穿透硫容达126.58 mg/g。对反应后样品进行分析表明COS在废焦中主要以S存在,这种固硫方式增大了硫容量,为废焦的梯级利用与硫资源化提供了一条新途径。

关键词: 废活性焦, 羰基硫, 催化, 水解, 回收, 性能研究

Abstract:

The COS hydrolysis and sorption catalyst was prepared by exhausted activated coke (EAC) produced in the activated coke purification process in the moving bed. Combining with the results characterized by multiple methods (XRD, TG, BET, TPD, FTIR, SEM, and XPS), it was found that the more developed pore structures and more abundant surface groups appeared in the EAC, and the specific surface area reached 445.38 m2/g. The effects of different alkali loading and process parameters on COS catalytic hydrolysis efficiency were investigated, and the results showed the activity was strongest when the NaOH loading was 0.450% at 100℃ which the breakthrough sulfur capacity reached 126.58 mg/g. The analysis of the sample after reaction showed that the COS mainly exists as S in the waste coke. This sulfur fixation method increases the sulfur capacity and provides a new way for the cascade utilization of waste coke and sulfur resource utilization.

Key words: exhausted activated coke, COS, catalysis, hydrolysis, recovery, performance study

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