Research on Alternative Fuels for Fly Ash in Circulating Fluidized Bed Boiler Blended with Clean Coal-to-gas
China is a major producer of coal resources.To adopt clean coal technology and change the traditional way of coal consumption is one of the urgent tasks in China's industrial field.Clean coal-to-gas is one of the important technologies for efficient and clean utilization of coal.The first phase project of a certain producer adopts 2×260t/h high temperature and high pressure circulating fluidized bed boilers and 1×60,000 Nm³/h lignite-to-clean gas circulating fluidized bed gasifier as the energy source for production process.The annual coal consumption of a single gasifier is 220,000 tons,and the total amount of solid particle waste fly ash generated reaches 30,000 tons.Realizing the substitution of fly ash from gasifier for fuel can save a lot of fuel costs,and provide an efficient and economical optimization option for the efficient utilization of fly ash from coal gasification,turning waste into treasure,and energy conservation and emission reduction.
circulating fluidized bed boilerclean coal-to-gasfly ash substitution fuel
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