CFB Desulfurization Of GPC Power Optimization And Demonstration Effects

GPC(Guangzhou Petro-Chemical Complex) is one of 65 key industrial polluting enterprises of guangzhou, Power plant boilers are the main source of SO₂ emissions of GPC, With GPC continued expansion of the boiler scale and production scale, There will be a substantial increase in emissions of SO₂, SO₂ emissions control have become one of the bottlenecks in the development of GPC. Circulating fluidized bed (CFB) combustion technology is clean burning, low nitrogen oxide emissions, fuel adaptability, high combustion efficiency, load adjustment range and other advantages, has become the first choice for clean combustion of coal furnace. GPC introduced CFB boiler desulfurization technology to reduce SO₂ emissions will have far-reaching impact.GPC CFB boiler combustion air classification, use a high efficiency electrostatic precipitator and bag filter 2, with adding limestone in a semi-dry flue gas desulphurization and secondary desulfurization tail. In this paper, case study, comparative analysis, drawing desulfurization system theory and methods, the existing literature in the consolidated basis of the results, optimization of GPC CFB desulfurization system parameters: the premise does not affect the removal efficiency, will Ca / S Ratio Optimization Moore , from 2008's 2.5 3.0 control to 1.8 2.35; bed temperature from 900 925℃optimized for 860 890℃, materials circulation rate is 4.5, limestone particle size control in the 0.01 1mm, most of 150 300μm period, the strict control of quality limestone, limestone desulfurization activity to 2. CFB boiler after the desulphurization efficiency optimization from 2008 to 86% to 96.4%, the highest removal efficiency achieved was 97.7%, while the limestone powder consumption of 81,576 tons from 2008 down to 61,986 tons, down 24%, saving considerable economic benefits.In this paper, GPC CFB boiler desulfurization system wide common problems are analyzed, and from the commissioning, operation and management, process optimization and other aspects of blast furnace limestone feeding system and the tail bag desulfurization, spray and other equipment for the transformation of the corresponding This will help to CFB boiler desulfurization system stable operation and sulfur dioxide discharge standards, and can run for the domestic CFB boiler for reference.