Effect of calcination atmosphere on K2CO3/γ-Al2O3 adsorbent for removing carbon disulfide from isoprene

被引：0

作者：

Meng L. ^{[1
]}

Zhang X. ^{[1
]}

Li Q. ^{[1
]}

Jiang W. ^{[1
]}

Zhou H. ^{[1
,2
]}

Gong X. ^{[1
]}

Zhou G. ^{[1
,2
]}

机构：

[1] College of New Energy and Materials, China University of Petroleum-Beijing, Beijing

[2] Beijing Key Laboratory of Biogas High Value Utilization, Beijing

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 01期

关键词：

Adsorb; Adsorbent; Alumina;

D O I：

10.16085/j.issn.1000-6613.2020-0294

中图分类号：

学科分类号：

摘要：

K2CO3/γ-Al2O3 adsorbents were prepared by calcination in different atmospheres with potassium carbonate supported on alumina carrier by equal volume impregnation method. The effect of different calcination atmosphere on the performance of the K2CO3/γ-Al2O3 adsorbents for removing carbon disulfide from isoprene was investigated. XRD, mercury intrusion, CO2-TPD, FTIR were used to characterize and analyze the crystal structure, pore structure, basic active sites, surface functional groups of the adsorbents. The results show that the calcination atmosphere can affect the desulfurization capacity of the K2CO3/γ-Al2O3 adsorbent, which is related to the pore structure of the adsorbent, the distribution of K2CO3 active sites, and the H-O and C̿┴ O chemical bonds. Among these adsorbents, the K2CO3/γ-Al2O3 adsorbent calcinated in air has the best adsorption performance for the removal of carbon disulfide in isoprene. At normal temperature and pressure, when the mass ratio of adsorbent to oil was 1: 10, the sulfur content in the isoprene was reduced from 2000mg/kg to 769mg/kg, and the sulfur capacity of the adsorbent reached 1.23%. © 2021, Chemical Industry Press Co., Ltd. All right reserved.

引用

页码：221 / 226

页数：5

共 20 条

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