| Low carbonization and cleanliness have become the trend and direction of a new round of energy revolution.In recent years,China has made great progress in the development of new energy,a diversified energy supply system has gradually formed,and the proportion of coal in energy consumption has continued to decline.However,due to resource endowments,the total amount is still relatively large.In 2018,China raw coal consumption was as high as 3.589 billion tons,about 50%of which is used for power generation conversion.The environmental impact and air pollution problems caused by this can not be ignored,and it is of great practical significance to improve the clean utilization level of coal.The "near-zero emissions" of thermal power generation is an active attempt by traditional power generation companies to further improve the clean utilization of coal,and promote the breakthrough of flue gas emissions from conventional governance to lean governance.This article integrates the relevant theoretical knowledge of technical economics and conducts research on the environmental situation,implementation effects,policy support,and social participation in the promotion of "near-zero emissions" of thermal power.The specific research results are as follows:(1)The situation facing China’s air pollution control is analyzed,reflecting that China’s environmental air quality control standards are set loosely,the overall air quality compliance rate is low,and the number of days of severe pollution has not been effectively improved.An Elman neural network-based atmospheric pollutant emission prediction model optimized based on the firefly algorithm was constructed.Based on comprehensive consideration of economic growth,industrial structure,technological progress,and energy intensity,and other economic growth scenarios,the main atmosphere of China was predicted.The scale of pollutant emissions reflects that in the next period of time,the main pollutants will still maintain a certain emission intensity,and it is difficult to treat them.It is of great environmental significance to promote in-depth treatment technologies for flue gas such as "near-zero emissions" of thermal power.(2)An evaluation of the emission reduction effect of the "near-zero emission"renovation project of thermal power was carried out.An evaluation model based on super-efficiency DEA was constructed,and an evaluation index system including key factors such as flue gas emission performance,process maturity,investment operating cost,and construction convenience was designed.Several representative thermal power plants with near zero were selected."Emissions" project is selected as the analysis object,based on which the stability and effectiveness of the relevant integrated technology route in reducing the emission of major air pollutants is verified.(3)An analysis of the "near-zero emissions" reduction effect of thermal power in consideration of the multi-policy subsidy scenario was conducted.Based on the derivation game theory,the model is established,and the co-evolution algorithm is applied to simulate the game situation and rational choice of the multi-agent power generation group under the power market conditions and the policy incentive conditions,respectively.The necessity of policy subsidy in the promotion of "near zero emission" of thermal power plant is demonstrated.An analysis model of the near-zero emission reduction effect of thermal power based on system dynamics was constructed,combined with the 0.01 yuan/kWh policy subsidy granted by the country,and simulated in different execution scenarios,showing that the policy subsidy is promoting the promotion of green technology from a quantitative perspective.It plays an important role in improving the effect of reducing emissions.Combined with the simulation results,it gives suggestive hints to the closing nodes of the policy subsidy.(4)Based on the selection experiment theory,an assessment model of residents’willingness to pay for atmospheric environment improvement was constructed to further expand the channels for realizing the near-zero emission compensation mechanism of thermal power.The relevant design,investigation and analysis of the questionnaire is carried out.The questionnaire is mainly about the improvement of the atmospheric environment on the residential side of Hebei Province,which reflects the positive attitude of the public towards the "near-zero emission" measures for air pollution from thermal power.The willingness to pay for the improvement of the atmospheric environment is also evaluated on the residential side.The potential path of policy subsidy guidance is put forward.(5)The relevant implementation strategy of perfecting the near-zero emission compensation mechanism of thermal power is proposed.According to the characteristics of environmental protection governance and the market-oriented development trend of thermal power.The limitations of the current "near-zero emission" subsidy policy for thermal power are analyzed,and the overall idea of optimization of the "near-zero emission" value compensation mechanism for thermal power is proposed.Regarding the priority trading mechanism of the continuous emission monitoring system(CEMS),this paper pays attention to the willingness of the residents to participate,and exerts the synergy of environmental protection policies,relevant suggestions and measures were put forward.The purpose of this paper is to further grasp the universal law of systematic improvement of flue gas depth governance performance in the thermal power industry through research,and to form technical economic methods and ideas with certain theoretical value and practical guiding significance.At the same time,it can also provide reference and reference for the future promotion of green and innovative technologies in steel,building materials,chemical industry and other high coal-consuming industries,and strengthening the governance of source emissions. |
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