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Process for the reduction of sosub2/sub from wet lime/limestone tailgas in power plant desulfurization processes
Process for the reduction of sosub2/sub from wet lime/limestone tailgas in power plant desulfurization processes
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机译:电厂脱硫过程中从湿石灰/石灰石尾气中还原so 2 sub>的方法
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摘要
This invention describes a process for the scrubbing of sulfur oxides from the effluent of conventional wet lime/limestone SOx reduction processes in coal or oil-fired plants. The sulfur oxides are oxidatively sorbed onto solid sorbents such as magnesium aluminate spinel. Reduction with the appropriate reducing gases (such as hydrogen) regenerates the catalyst, also yielding a process stream concentrated in SOx. This concentrated SOx stream can then be refed to the front end of the coal or oil-fired plants, with the SOx thus produced ultimately being removed in the conventional wet scrubbing technology.
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