The issue of water gas composition
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Why has the carbon monoxide content in the syngas at the outlet of the water-coal slurry gasifier decreased, while the hydrogen content has increased? Furthermore, it is possible to quickly assess the operating condition of the furnace based on changes in carbon monoxide levels.
1. It is related to the oxygen-coal ratio; when the oxygen-coal ratio is high, the time required for carbon monoxide to be produced decreases, while the levels of hydrogen and CO2 increase. 2. It is related to the water vapor ratio.
It is mainly related to the steam-to-oxygen ratio; once the quality and quantity of coal are determined, a large amount of steam and a low furnace temperature result in low levels of carbon monoxide； The amount of hydrogen needs to be increased relatively ； CO2 reduction decreases, while the content increases.
The temperature of the gasifier is too low; increase the oxygen-to-coal ratio