Study On The Method Of Pre-evaluation For FGD In Nanyang Yahekou Thermal Power Plant

With the rapid development of China’s coal-fired power generation, emissions ofnitrogen oxides produced by the rapid growth year by year. In China’s power industry,nitrogen oxides will become the largest acidic gaseous pollutants gas. Therefore, nitrogenoxide emissions from power plants for the control and treatment is imminent.Construction projects for denitrification has important significance in healthydevelopment of China’s power industry and the sustainable development of China’seconomy and the environment.In order to comply with increasingly stringent environmental requirements, China’scoal-fired power plant will gradually build flue gas denitrification devices. Flue gasdenitration unit project has a large upfront investment, long construction period, energyconsumption and other characteristics. Meanwhile, when the flue gas denitrificationprojects put into operation, its operating costs are difficult to measure with the changeobviously, accuracy and poor features, making it difficult for coal-fired power plantproject cost denitrification measured. In the flue gas denitrification projects before thegreatest impact on economic efficiency and fuel prices, capacity utilization and otherfactors. Therefore, the research of power plant of denitration project assessment isparticularly important.This paper see related literature, combined power plant operating characteristics ofthe project itself, establishing a set of index system for power plants before denitrationproject evaluation, completing multi-level fuzzy comprehensive evaluation. First of all,the paper established comprehensive evaluation index system from three aspect intechnology, environment and economy. Then take advantage of the multi-level fuzzyanalysis conducting comprehensive evaluation in the project. Finally, the results showthat the project is feasible. The multi-level fuzzy comprehensive evaluation have a moreaccurately determining on the evaluation results, providing a theoretical reference forfuture similar denitration project evaluation.