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How do gas turbines, water turbines, and coke oven turbines generate their gas?
How do gas turbines, water turbines, and coke oven turbines generate their gas?
Gas turbines, water turbines, and coke oven turbines are commonly known as low-heat-value turbines, used in industrial equipment such as boilers, steel mills, glass furnaces, and drying units. The common gas types include black-fired gas, water-fired gas, coke-fired gas, natural gas, and other types.Do you know how these turbines generate their gas? Let the editor of Euro-Bao explain to you:
Coal gasification: Solid fuels are converted into gaseous fuels by coal gasification. There are many types of coal gasification methods, including coke-fired gasification, coking gasification, water-fired gasification, natural gasification, and other methods.Coal gasification methods convert coal into a large amount of carbon monoxide, which is the main gaseous product of the gasification process. The main gaseous products of the gasification process include carbon monoxide, nitrogen, hydrogen, and other gases.
Water-fired gasification: Water-fired gasification methods generate water from combustion of water-based fuels such as coal or natural gas.The main gaseous products of the water-fired gasification process are water vapor, carbon dioxide, hydrogen, and other gases. The production method of water-fired gasification is to ignite coal in a water-based gasifier, provide sufficient air to the bottom of the gasifier, and let the coal burn fiercely.Later, stop the fan, inject steam into the bottom of the gasifier, and mix the hot gas with the remaining water vapor. The resulting water vapor contains hydrogen, carbon dioxide, and other gases.
Coke oven gasification: Coke oven gasification methods generate coke from the combustion of coke-based fuels such as coal or natural gas.The main gaseous products of the coke oven gasification process are carbon monoxide, hydrogen, and other gases. The production method of coke oven gasification is to crush raw coal, wash it thoroughly, and mix it according to different coal types in a coke oven.The high temperature causes coal to decompose and generate coke and coke oil. The raw material used for production is coal or coke. The gasification process uses an inverted bed gasification method to produce gas. The gasification process: The gasification raw material is introduced from the top of the gasifier.The entire fuel layer is supported by the gasifier's paddle. The gasification reagent is introduced from the bottom of the paddle through the gasifier's evenly distributed and contact with the fuel layer to produce gasification reactions. The resulting gas is drawn from the fuel layer above.The remaining ash is discharged from the bottom of the gasifier. This gas-solid two-phase circulating operation oven can fully utilize the heat of the ash to preheat the gasification reagent, utilize the latent heat of the upward gas to heat the fuel, dry and pyrolyze the fuel, and improve the efficiency of the gasifier; and the volatile content in the fuel does not undergo high-temperature cracking, improving the heat value of the gas.The drawn gas contains CO, H2, CO2, N2, CH4, C2H4, H2S, H2O, nitrogen compounds, and coke oil vapor.
Author：Ebico