Research and Application of Carbon Black Flue Gas Desulfurization and Denitrification Technology
The 2019 Deep Emission Reduction Work Plan for the Steel and Coking Industry in Linfen City requires that carbon black flue gas achieve ultra-low emission standards.The emission indicators of the flue gas when converted to 3.5%(dry basis)of the benchmark oxygen volume fraction are:NOx emission mass concentration≤50 mg/m3,SO2 emission mass concentration≤35 mg/m3,and smoke emission mass concentration≤10 mg/m3.Therefore,deep treatment of carbon black flue gas desulfurization,denitrification,and dust removal must be carried out to achieve ultra-low emissions and meet current environmental protection requirements.After comparing and selecting the project renovation plan,the process route of SCR denitrification+SDS dry desulfurization+bag filter was finally determined.After the implementation of the renovation,optimization and renovation were carried out on the problems that occurred during the trial operation of the project,which enabled the desulfurization and denitrification device to achieve the expected results.
deep emission reductiondesulfurization and denitrificationultra low emissions
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