Evaluation Of The Benefit Of The “Coal To Gas And Electricity” Project On The Coordinated Emission Reduction Of Greenhouse Gases And Air Pollutants

The homology of greenhouse gases and atmospheric pollutants makes the measures to deal with climate change and control atmospheric pollutants intertwined and influenced each other.The implementation of an emission reduction measure is not only to achieve a single pollutant emission reduction target,but also to achieve environmental benefits for multiple pollution targets.With the "coexistence effect" between pollutants and greenhouse gases becoming more and more prominent,it is necessary to adopt relevant research methods to evaluate the effect of synergistic emission reduction."Coal to gas and electricity" means "gas instead of coal" and "electricity instead of coal".And it is a new development project to achieve the goal of the project by means of natural gas or liquefied gas combustion and electricity supply instead of coal combustion.Taking Handan city as an example,this paper takes the direct emission of greenhouse gases and atmospheric pollutants from "coal to gas and electricity" as the research object,and conducts in-depth research on the emission inventory of different pollution sources and the synergistic emission reduction benefits of Handan City.First of all,this paper selects takes 2017-2027 as the research time.By choosing the activity level data,emission coefficient and the related basic data of different pollution sources,the basis of production using emission coefficient method and material balance algorithm to estimate the emissions of greenhouse gases and atmospheric pollutants generated by coal combustion in 2017 as the base year,and the emission inventory of the base year is established.Secondly,according to the future development trends of population,economy and industrial structure of Handan city,the linear extrapolation method is used to predict the activity level data in the emission year of 2027,to estimate the emissions of greenhouse gases and atmospheric pollutants generated by coal combustion under the baseline scenario,and to establish the emission inventory.At the same time,based on the benchmark scenario and the current policies of Handan city,the implementation levels of "gas instead of coal","electricity instead of coal" and other environmental protection policies in the next decade will be considered,and different emission reduction scenarios will be set respectively.According to the consumption of natural gas or electricity under different emission reduction scenarios,the greenhouse gas and air pollutant emissions of different pollution sources are estimated and emission inventory is established.Finally,based on the baseline scenario emission inventory and emission reduction scenario emission inventory established above,the emission of greenhouse gas leakage and the emission reduction are calculated,and the synergistic emission reduction benefit is quantitatively evaluated by referring to the calculation method in CDM project methodology named “CM-087-V01 Alternative fuels from coal or oil to natural gas”.The results show that the "coal to gas and electricity" project has obvious positive effects on greenhouse gas and atmospheric pollutant emission reduction.From the point of view of environmental protection,the “electricity instead of coal” project has higher emission reduction benefits than "gas instead of coal".The introduction of additional policy enforcement has also had a significant impact on greenhouse gas emission reduction and the control of atmospheric pollutants.And the higher the additional policy implementation,the higher the reduction rate of air emissions.