据统计，我国目前燃煤发电仍占电力总消耗量的75％以上；由其引发的环境污染问题也随之趋于严重。1998年和1999年我国因煤炭燃烧而排放出的二氧化硫总量分别高达2087万吨和1857万吨，居世界第一位，北方地区则接连发生大规模烟尘污染和酸雨现象，火电厂已经成为我国主要的大气 According to statistics, China’s current coal-fired power generation still accounts for more than 75% of total electricity consumption; the environmental pollution problems caused by it have also become more serious. In 1998 and 1999, the total amount of sulfur dioxide emitted from coal combustion in China reached 20.87 million tons and 18.57 million tons respectively, ranking first in the world. In the northern region, large-scale dust pollution and acid rain occurred in succession. Thermal power plants have become China’s The main atmosphere