Integrated desulfurization and dust removal method of petroleum coke calcining flue gas in carbon production for electrolytic aluminium

The present invention relates to an electrolytic aluminum production of petroleum coke calcined carbon FGD integrated process, belongs to the field of environmental protection. The present invention is based on the company's patent (ZL200410022641.3 and ZL200610048701.8) technology, for the power industry, aluminum and carbon production of petroleum coke calcining kiln dust and smoke and carbon governance principles Application of desulfurization ammonia fumes to resolve the class and further desulfurization wet dust problems arising from desulfurization ammonia (NH4) 2SO3, NH4HSO3, direct catalytic oxidation in ammonium sulfate fertilizer. Advantage of the present invention is that: the production of carbon can be used so that a sulfur-containing petroleum coke greater than 1%, reduce production costs; solve the flue gas dust collection efficiency is not high, excessive dust emissions, to achieve the control of SO2 and carbon dust integration; desulfurization efficiency of the present invention is> 95%, the concentration of SO2 emissions <120mg / Nm3, the soot concentration <100mg / Nm3, blackness (Ringelmann level) level 1. Low investment in equipment and operating costs while recovering sulfur resources to form a new industrial chain.