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高炉煤气中羰基硫吸附分离的研究进展

Research progress on adsorption and separation of carbonyl sulfide in blast furnace gas.

作者信息

Wang Ying, Wu Xiaoqin, Wei Di, Chen Yue, Yang Jia, Wu LvYou

机构信息

Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology China

出版信息

RSC Adv. 2023 Apr 24;13(18):12618-12633. doi: 10.1039/d2ra07409e. eCollection 2023 Apr 17.

DOI:10.1039/d2ra07409e
PMID:37101950
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10123494/
Abstract

The iron and steel industry is one of the foundational industries in China. However, with the introduction of energy-saving and emission reduction policies, desulfurization of blast furnace gas (BFG) is also necessary for further sulfur control in the iron and steel industry. Carbonyl sulfide (COS) has become a significant and difficult issue in the BFG treatment due to its unique physical and chemical properties. The sources of COS in BFG are reviewed, and the commonly used removal methods for COS are summarized, including the types of adsorbents commonly used in adsorption methods and the adsorption mechanism of COS. The adsorption method is simple in operation, economical, and rich in types of adsorbents and has become a major focus of current research. At the same time, commonly used adsorbent materials such as activated carbon, molecular sieves, metal-organic frameworks (MOFs), and layered hydroxide adsorbents (LDHs) are introduced. The three mechanisms of adsorption including π-complexation, acid-base interaction, and metal-sulfur interaction provide useful information for the subsequent development of BFG desulfurization technology.

摘要

钢铁行业是中国的基础产业之一。然而，随着节能减排政策的出台，为进一步控制钢铁行业的硫排放，高炉煤气（BFG）脱硫也很有必要。由于羰基硫（COS）独特的物理和化学性质，它已成为高炉煤气处理中的一个重大难题。本文综述了高炉煤气中COS的来源，总结了常用的COS脱除方法，包括吸附法中常用吸附剂的类型以及COS的吸附机理。吸附法操作简单、经济，吸附剂种类丰富，已成为当前研究的重点。同时，介绍了常用的吸附剂材料，如活性炭、分子筛、金属有机框架材料（MOFs）和层状氢氧化物吸附剂（LDHs）。π络合、酸碱相互作用和金属硫相互作用这三种吸附机制为后续高炉煤气脱硫技术的发展提供了有用信息。

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本文引用的文献

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Research into the reaction process and the effect of reaction conditions on the simultaneous removal of HS, COS and CS at low temperature.低温下同时去除HS、COS和CS₂的反应过程及反应条件影响的研究。
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