被引排行
The composing mechanism of NO_x in combustion
The research on NO_x composing mechanism is the theoretic basis and the references to NO_x producing and controlling in combustion.The sources of NO_x in nature and its harm to environment are described.The three kinds of routes and their mechanisms are introduced in detail.
Discussion on the application of the SCR technology in coal-fired power plants
SCR DeNO_x technology is applied widely and successfully in power plants.It is one of the most mature and broad-used DeNO_x technologies in the world. SCR process principles is introduced.The constitutions of SCR system are analyzed.Some specific recommendations are put forward.
Hybrid SNCR-SCR denitrification technique and its application
CAI Xiao-feng,LI Xiao-yunHybrid SNCR-SCR denitrification technique is a new and mature process which combines the higher efficiency of SCR and the lower cost of SNCR.The characteristics of hybrid SNCR-SCR DeNOxprocess are introduced briefly.The process are compared with SCR and SNCR process technically and economically based on the actual operation data from a thermal power plant in Taiwan.
SCR denitrification technology and its application in our country
This paper describes selective catalytic reduction (SCR) for NO_x control that removes NO_x from flue gas and has been used by developed countries in the world.Its principle,craft process and applications are also introduced.And the discussion about taking the technology into practice in our native coal-fired power plants has been made.
Research on the development path of carbon peak and carbon neutrality in China's Power Industry
ZHU Fahua;WANG Yushan;XU Zhen;The development path of the power industry has attracted much attention and heated discussion, since President Xi Jinping announced China's carbon peak and carbon neutrality targets. It points out that carbon peak includes peak time and peak value, and carbon neutrality is not zero emission of CO_2, starting from the basic concept of carbon peak and carbon neutrality. Based on the path analysis of carbon peak and carbon neutralization in developed countries, the similarities and differences between China and developed countries are obtained. It will be harder for China to reach a carbon peak and become carbon neutrality. Three important measures are proposed, the first is with energy-saving and burning with blending as the lead, to retain no less than 800 million kW thermal power units. The second is with low carbon energy as the key, to develop wind and solar power generation. The third is with energy storage and carbon capture as the supplement, to ensure the stability of electric power system. According to the China's practical situation that the fossil energy is with rich coal, poor oil and little gas, the development of hydro-power resources is basically completed, and the site selection of nuclear power stations is more difficult, it is estimated that the CO_2 emission from China's thermal power industry during the carbon peak period is about 4.7 billion tons, the allowable CO_2 emission is about 1.35 billion tons during the period of carbon neutrality. And China's installed power capacity will be 6.43 billion kW, of which wind and solar power generation is 5 billion kW, nuclear power 200 million kW and hydro-power 430 million kW, waste heat, pressure and gas generated electricity of 50 million kW, biomass generated electricity of 120 million kW, gas generated electricity of 100 million kW, coal-fired generated electricity of 530 million kW. The non-fossil energy generated electricity installed capacity accounts for 90.2%, electricity generation accounts for 85.3%. China's power industry emits about 1.521 billion tons of CO_2 during the period of carbon neutrality, of which 1.318 billion tons are emitted by the thermal power sector, less than the allowable emissions.
Study on SCR technique for flue gas denitrification in coal-fired power plants
ZHAO Yi,ZHU Hong-tao,AN Xiao-ling,et alThe selective catalytic reduction(SCR)technique for flue gas denitrification has been employed widely and successfully in coal-fired power plants home and abroad at present.The technological process and chemical reaction mechanism of SCR were introduced.The main factors of impacting SCR denitrification efficiency were analyzed especially.The future research of SCR technology were predicted as well.
Numerical simulation of different guide plates in selective catalytic reduction denitrification reactor of 600MW power plant
The research was based on guide plates in selective catalytic reduction denitrification reactor of 600 MW power plant.Three different shapes of guide plates were simulated by using Fluent.The appropriate shapes of guide plates and reasonable flow in SCR reactor were obtained.The flow straightener was added in SCR reactor in order to improve the flow.
Review on ammonia flue gas desulfurization
Ammonia scrubbing technology has been developed over the last few years. Wet ammonia flue gas desulfu-rization(FGD) process offers an unique advantage of an attractive ammonium sulfate by-product that can be used as fertilizer.
Discussion on wet ESP technology and its application prospect in coal-fired power plants
ZHAO Qin-xia,CHEN Zhao-mei,ZHOU Chao-jiong,et alWet electrostatic precipitation can be used to control PM2.5,acid mists,aerosol,sub-micron particulate,mercury,heavy metals and dioxins/furans as the final polishing device within an multi-pollutant air pollution.The working mechanism,technology characteristics,configurations and some design manner of wet ESPs were described.The application prospect of wet ESPs in coal-fired power plants was proposed.