Research progress on flue gas desulfurization and utilization with slurry

doi:10.16085/j.issn.1000-6613.2017.05.040

Abstract

Abstract: This paper summarized the applications of flue gas desulfurization and utilization withslurry. Applications of flue gas desulfurization and utilization about seven slurries including phosphate rock,pyrolusite,magnesium ore,red mud,zinc ore,copper mine and nickel ore were described, respectively. The quantities,occurrence forms of ores,flue gas desulfurization mechanisms,influencing factors,craft routes,operating parameters and application cases of desulfurization were discussed. Then advantages and disadvantages were compared and analyzed. It can be summarized that slurry prepared from the mixture of slag and water is used as a novel desulfurization agent for flue gas desulfurization,which could achieve the purpose of using waste to treat waste by realizing the removal of sulfur dioxide in flue gas and obtaining the comprehensive utilization of resources simultaneously. Analysis indicates that flue gas desulfurization with slurry has a feasible application prospect with low cost and large by-products,which could provide a promising new idea for flue gas desulfurization. However,there are still several problems such as less research on simultaneous treatment of many pollutants and high cost for separations of by-products. Therefore,it is important to strength subsequent researches on simultaneous treatment of many pollutants and separation and resource utilization of by-products in these fields.

Key words: slurry, flue gas desulfurization, multiphase reaction, resource utilization

摘要： 总结了矿浆在烟气脱硫及资源化的应用，全面综述了磷矿浆、锰矿浆、镁矿浆、赤泥浆、锌矿浆、铜矿浆、镍矿浆7种不同类型矿浆烟气脱硫及资源化，从矿渣的数量、赋存形态、烟气脱硫机理、影响因素、工艺路线、操作参数、应用案例等进行论述，并对比分析各自优点和缺点。总结出矿渣或贫矿与水配制矿浆作为新型脱硫剂可以高效脱除烟气中低浓度二氧化硫，同时综合利用矿渣中金属资源，达到 “以废治废” 目的。指出虽然矿浆烟气脱硫技术可行、运行成本低、副产物量大，可为烟气脱硫及资源化工业应用提供新思路，但是依然存在污染物同时治理研究较少、脱硫产物高效分离成本较高等问题，今后应加强多污染同时脱除、脱硫副产物分离及资源化利用途径的研究。

关键词: 矿浆, 烟气脱硫, 多相反应, 资源化利用

CLC Number:

X701.3

TAO Lei, WANG Xueqian, NING Ping, LI Ziyan, WANG Langlang. Research progress on flue gas desulfurization and utilization with slurry[J]. Chemical Industry and Engineering Progress, 2017, 36(05): 1868-1879.

陶雷, 王学谦, 宁平, 李子燕, 王郎郎. 矿浆烟气脱硫及资源化研究进展[J]. 化工进展, 2017, 36(05): 1868-1879.

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