Environmental Benefits Research On The Power Plant By Using IGCC Technology Under Low Carbon Development In China

The basic characteristic of energy reserves is rich with coal, less with oil and natural gas, and coal is the most important traditional energy in China. Compared with natural gas, oil, nuclear, hydro power and the other energy resources, all kinds of proven reserves will be accounted for more than85%of total reserves by converting into standard coal value. For the energy type composition in China, the primary energy consumption of coal accounts for the proportion of70%.A lot of power energy will be consumed every year, China’s energy reserves type leads to the result that the production and supply of electricity must rely on coal-fired power plants. The large number of coal combustion will bring a serious pollutant emissions. Therefore, searching for the technology of high effective and energy saving coal-fired power generation seems to be especially important.IGCC (Integrated Gasification Combined Cycle) power plants will be built in this context, and the paper is the study on environmental benefits of the power plant by using IGCC technology. By studying a lot of relative materials, the paper carried out a detailed exposition of energy structure and the present situation of electric power industry in China, as well as technical advantages of IGCC.According to the process principle of IGCC technology, the paper creates a new method for IGCC plants, named "carbon emission reduction methodology used at IGCC power plants". The paper calculates the CO2emission reduction of IGCC power plant by using the new developed methodology. At the same time, if the international carbon trading of CO2emission reductions are well done which is the international certification, it can greatly improve the economic attractiveness of the IGCC plant and overcome the barriers of the pre-investment; it not only reduces the pollutant emission, but also creates greater economic value. In addition, the paper also proposes a set of calculation methods to calculate the emissions of NOx, SO2, smoke pollutants, and have a further detailed research on the environmental benefits of the IGCC plant.By applying the new developed methodology, the paper calculates the emission reductions of the IGCC project in Tianjin Huaneng Group. Meanwhile, it also carries out the corresponding calculations of SO2, Nox and smoke which discharged by coal-fired power plants. By calculating, the annual CO2emissions reductions of the project is464,035tons, and reduction will be reached to4,640,350tons during the crediting period. If the CO2emission reductions of the project be sold at international carbon trading market, there will be202,365,663Chinese yuan for the income. In addition, this thesis also contact the economic and environmental benefits of the project. Through a series of analysis, it can be seen that the IGCC project is an efficiency and environmental one, and it is the future developmental tendency of coal-fired power plants in China.