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- Title
燃气电厂与超低排放燃煤电厂环境及生态效应对比.
- Authors
樊 慧; 段天宇; 朱博骐; 陈双营
- Abstract
Whether gas-fired power generation still has the comparative advantages in environmental protection and ecology compared with ultra-low emission (ULE) coal-fired power generation is an important factor to be considered in domestic power structure optimization decision in the future. Based on existing environmental protection standard of domestic fossil-fuel industry, this paper compared the environmental and ecological effects of gas-fired power generation with that of ULE coal-fired power generation from the aspects of pollutant emission level, issues caused by pollutants control, carbon emission and resource consumption. And the following research results were obtained. First, after low-nitrogen combustion modification and SCR installation are implemented in gas-fired power generation, its emission of conventional pollutants is much lower than that of ULE coal-fired power generation. Second, CO2 emission per kilowatt hour of gas-fired power generation is about 50% lower than that of ULE coal-fired power generation. By means of gas-fired power generation, water and land resources can be saved greatly. Third, ULE coal-fired power generation suffers the emission problems of condensable particles (SO3) and heavy metals, so gas-fired power generation is much more advantageous in terms of environmental protection and ecological effect. Finally, several development suggestions were proposed. First, intensify environmental policies continuously and encourage the construction of gas-fired power generation plants. Second, by referring to NOx emission standard of gas turbines in Beijing and Shenzhen, revise the "Air Pollutant Emission Standard of Fossil-Fuel Power Plants (GB 13223-2011)" and set domestic NOx emission limit of gas turbines at 15 mg/m3 and cancel dust and SO2 emission limits of gas turbine. Third, accelerate the construction and improvement of national carbon market and set the "floor price", establish a climate-friendly market environment of fair competition by virtue of carbon price mechanism, and speed up the transformation of electric power enterprises to the low-carbon power structure.
- Subjects
SHENZHEN (Guangdong Sheng, China : East); BEIJING (China); EMISSIONS (Air pollution); EMISSION standards; ENVIRONMENTAL protection; GAS turbines; CARBON pricing; AIR pollutants; ELECTRIC power conservation
- Publication
Natural Gas Industry, 2020, Vol 40, Issue 7, p146
- ISSN
1000-0976
- Publication type
Article
- DOI
10.3787/j.issn.1000-0976.2020.07.018