A solid heat carrier coal gasification power storage system and method

Abstract

The invention provides a solid heat carrier coal gasification electric power energy storage system and method. The system includes a power supply device, a fluidized bed pulverized coal gasification furnace, a cyclone dust collector, an ash discharge separator and a fine ash collection chamber. The power supply device Connected to the fluidized bed pulverized coal gasifier, the fluidized bed pulverized coal gasifier includes a furnace body, a metal heat carrier is installed inside the furnace body, and an electric heating element is installed outside; the gas outlet of the furnace body is connected to the Cyclone dust collector, the discharge port of the cyclone dust collector is connected to the feed inlet of the ash discharge separator, the coarse ash outlet of the ash discharge separator is connected to the return port, and the ash discharge separator is The fine ash outlet is connected with the fine ash collection chamber. The method is to use the above system to first heat the temperature in the fluidized bed pulverized coal gasification furnace to 800~1300°C; then use a preheated gasification agent to entrain the mixed powder of pulverized coal and calcium carbonate to perform the coal gasification reaction in the coal gasification furnace; Finally, the high-temperature gas is used to prepare city gas or chemical products.

Description

technical field [0001] The invention relates to comprehensive utilization of power grid electric energy, in particular to a solid heat carrier coal gasification power storage system and method. Background technique [0002] At present, thermal power generation is the main power generation method in my country, and it will not change in the future. However, in recent years, with the improvement of people's living standards and the adjustment of industrial structure in our country, great changes have taken place in the power consumption structure of the whole society, resulting in an increasing peak-to-valley difference between major power grids. However, the regulation ability of the power grid itself is relatively weak. Therefore, when the installed capacity of generators is difficult to meet the peak power consumption of the grid load, it is necessary to adopt the method of power rationing to ensure the stable operation of the generator set, and when the power consumption i...

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Problems solved by technology

Among the current chemical energy storage technologies, electrolytic water hydrogen production technology has the advantages of environmental protection and no pollution, and can obtain high value-added hydrogen, but this technology has high investment costs and poor economic efficiency; electrolytic aluminum technology pollutes the environment seriously, and in Today, with excess aluminum production capacity, there is no advantage in power grid peak regulation through electrolytic aluminum technology

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