高炉煤气精脱硫工艺研究进展
Research progress on fine desulfurization technology for blast furnace gas
基于工业应用或示范的高炉煤气脱硫工艺进行了技术归纳总结,从工艺原理、COS水解转化、H2S吸收/吸附脱除技术等方面进行了分析,以期为“双碳”目标背景下高炉煤气高价值利用和超低排放提供参考和借鉴。结果表明,脱硫工艺可有效降低高炉煤气中的硫含量,达到超低排放的要求。结合具体工艺需求,提高硫的脱除效率和降低成本是以后的发展方向。
The blast furnace gas desulfurization process technologies based on industrial application or demonstration are summarized,with analysis on the process principle,COS hydrolysis conversion,H2S absorption/adsorption removal,and COS and H2S simultaneous removal process,etc.It aims to provide reference and inspiration for the high-value utilization and ultra-low emission of blast furnace gas in the context of the “carbon dioxide emission peaking and carbon neutrality” targets.It is indicated that the sulfur content in blast furnace gas can be effectively reduced by adopting these processes to meet the requirements of ultra-low emission.Combined with specific process demand,improving the desulfurization efficiency and reducing the cost are the development directions in the future.
高炉煤气 / 吸附脱硫 / 催化水解 / 硫化氢 / 羰基硫 / 脱硫工艺
blast furnace gas / desulfurization by adsorption / catalytic hydrolysis / hydrogen sulfide / carbonyl sulfide / desulfurization process
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