Discussion on the issue of adding steam to the burner in the pressurized gasification process using space furnace coal powder
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In pressurized gasification of pulverized coal using space furnace technology, steam is added to the oxygen supplied to the pulverized coal burner. Once the steam enters the gasification furnace, a conversion reaction takes place: CO + H2O = CO2 + H2. From a chemical equation perspective, this is a reaction that results in an increase in volume. However, in terms of the amount of useful gas, 1 mol of CO2 produces 1 mol of hydrogen; thus, the amount of useful gas remains unchanged, while the total volume of gas does change. This leads to a decrease in the percentage of useful gas, and from the standpoint of useful gas, this has no practical value
What about C+H2O? This is the main reason, right? Otherwise, how high would the oxygen-coal ratio be?