Reviewing the Old to Discover the New (Series 6)
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What are the common methods for adjusting the gas composition in batch semi-water gas?
11. Adjusting the hydrogen-oxygen ratio: This can be done by increasing or decreasing the amount of nitrogen-rich air used, or by extending or shortening the air purging time. 2. By adjusting and controlling the furnace temperature, it is possible to control the levels of methane, oxygen, and carbon dioxide in semi-water gas.
When producing semi-water gas by the intermittent process, the method for adjusting (H2+CO)/N2 is to change the amount of air containing N2 added or to increase or decrease the time for purging with air
What are the common methods for adjusting the gas composition in batch semi-water gas? Answer: The steam conversion method using water vapor as the gasifying agent: classified by gasification properties, it includes the partial oxidation method that uses pure oxygen or oxygen-enriched air (with water vapor sometimes added as well) as the gasifying agent; classified by the type of gasification furnace bed, there are fixed-bed, fluidized-bed, gas-flow bed, and melt-bed types; and classified by the form of slag discharge, there are solid slag discharge and liquid slag discharge methods.