高效洁净燃煤发电发展路线研究

Study on Clean and Efficient Coal - fired Power Generation Route

由于我国煤电基数较大,尽管平均供电煤耗有明显下降趋势,但煤电机组总发电量和煤炭消费量仍将处于上升趋势。如按现有发电技术水平预计(按2010年平均供电煤耗355 g/kW·h,电煤平均热值21 MJ/kg估算),2020年、2030年和2050年,电煤消费总量将达到24.06亿t/a、27.94亿t/a和26.95亿t/a[1],这将给电煤供应和环境保护带来很大压力。要降低供电煤耗,减少燃煤污染物排放,必须大力发展高效清洁发电技术,如发展超临界、超超临界、IGCC、煤基多联产系统、烟气脱硫系统(FGD)、催化氧化还原脱氮技术(SCR)、二氧化碳捕集与埋藏技术等。

It was based on larger figures, although the average coal consumption significantly decreased, but the total generating capacity of coal - fired generating units and coal consumption will remain on an upward trend. At the current level of technology, such as power generation is expected（ we calculate it according to average coal consumption 355 g/kW · h, coal average calorific value 21 MJ / kg in 2010） ,2020,2030 and 2050,electricity consumption will reach 24.06 billion t/a,27.94 billion t/a and 2. 695 billion t/a ,this will give a great deal of electricity supply and environmental pressures. To reduce coal consumption, reducing coal emissions, we must devel- op efficient and clean power generation technologies, such as the development of supercritical and ultra - supercritical, IGCC, coal poly- generation system, flue gas desulfurization system（ FGD）, catalytic redox off nitrogen technology（ SCR）, carbon capture and burial technology and etc.