Sulfur yield of PDS desulfurization of coke oven gas is50%-60%,and a large amount of desulfurization waste liquid is generated by accumulation of by-salts.Based on the chemical principle and technological principle of GLT chelated iron desulfurization,combined with the actual industrial transformation,the application of GLT chelated iron technology in coke oven gas purification has formed a systematic complete set of solutions,which not only solves the suitability problem of the application of chelated catalyst,but also realizes zero waste liquid discharge while the sulfur paste is recycled.By comparing and analyzing the technical economy of different technical routes,GLT chelated iron technology systematically solves the environmental problems existing in coke oven gas desulfurization,significantly saves investment and operating costs,and greatly reduces carbon dioxide emissions in the process of the gas purification.
关键词
焦炉煤气/脱硫/络合铁/绿色低碳/解决方案
Key words
coke oven gas/desulfurization/chelated iron/green and low carbon/solution