An integrated process of chemical precipitation and sulfate reduction for treatment of flue gas desulphurization wastewater from coal-fired power plant

Taking the initial design value for target power plant as standard index values, two comprehensive benefit index systems for flue gas desulphurization (FGD) technology were formed by mean square difference method with or without the index of earning of by-product, to analyze the environmental benefit, economic benefit, technology benefit and comprehensive benefit of six flue gas desulphurization technologies on designed power plant and obtained the optimal technology ultimately. For the index system with index of earning of by-product, the optimal FGD technology is wet ammonia desulphurization, not only possesses the biggest comprehensive benefit, but also the biggest economical and technology benefit for designed power plant. For the index system without the index of earning of by-product, the wet ammonia desulphurization, limestone wet desulfurization and simple wet desulfurization have similar comprehensive benefits, but individual advantage on environmental, economic and technology benefit separately.

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Mathematical model specific energy thermal power plant block to work with installations for wet flue gas desulphurization

Tehnika ◽

10.5937/tehnika1603414a ◽

2016 ◽

Vol 71 (3) ◽

pp. 414-420

Author(s):

Merim Alicic ◽

Sandira Eljsan ◽

Indira Buljubasic

Keyword(s):

Mathematical Model ◽

Power Plant ◽

Specific Energy ◽

Flue Gas ◽

Thermal Power Plant ◽

Thermal Power ◽

Flue Gas Desulphurization

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The Effect of Curing System on Mechanical Properties of Desulphurization Gypsum-Slag Composite Binder

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.539.200 ◽

2013 ◽

Vol 539 ◽

pp. 200-204

Author(s):

Xiao Qin Liu ◽

Jun Wang ◽

Hong Gen Qin

Keyword(s):

Mechanical Properties ◽

Power Plant ◽

Flue Gas ◽

Strength Development ◽

Steam Curing ◽

Composite Binder ◽

Binding Material ◽

Autoclave Curing ◽

Water Curing ◽

Flue Gas Desulphurization

Desulphurization gypsum-slag composite binder is a hydraulic composite binding material made by slag, desulphurization generated by coal-fired power plant flue gas desulphurization, activator and other materials. In order to study the effect of curing system on the composite binder, steam curing, autoclave curing, nature curing, standard curing and water curing were selected. The mechanical properties of desulphurization gypsum-slag composite binder were compared, and the best curing system for strength development was proposed.

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Causes Analysis of Wet Flue Gas Desulphurization Stack Rainout for the Thermal Powerplant without GGH and its Countermeasures

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.724-725.1306 ◽

2013 ◽

Vol 724-725 ◽

pp. 1306-1309

Author(s):

Peng Fei Nie ◽

Hong Yu Zhang ◽

Yang Wang

Keyword(s):

Power Plant ◽

Low Temperature ◽

Flue Gas ◽

Gas Flow ◽

Electrostatic Precipitator ◽

Thermal Power ◽

Efficient Operation ◽

Factors Affecting ◽

Mist Eliminator ◽

Flue Gas Desulphurization

This paper introduces the phenomenon of stack rainout in the wet flue gas desulphurization system for the thermal power plant units without GGH,analyzes the factors affecting rainout of wet stack and finds out the main causes resulting in stack rainout of wet flue gas desulphurization for Wangtan Power Plant without GGH,such as low temperature after the flue gas desulfurizationinsufficient diffusion capability of flue gas flowthe blockage of mist eliminatorpoor operation of electrostatic precipitatorinadequate combustion of boilerhigh speed of flue gas flow in the stackthe effect of climate. Also it is analyzed that the mist eliminator equipment and ensuring the efficient operation of electrostatic precipitator may relieve the phenomenon of stack rainout.

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