One Question per Day: Methanol Technology Exchange Edition 20180531
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Learn from the advanced practices of the *Brothers section; there are rewards for correct answers – any answer earns a reward, allowing us to grow and mature through these Q&A sessions. Brief answer, please add more details. How to determine the operating temperature of a gasification furnace? (1) Use high-temperature thermocouples to measure and monitor the temperature of the vaporization furnace ； (2) As the methane content changes and the furnace temperature rises, the methane content decreases ； (3) Depending on the changes in CO and CO2 levels, if the furnace temperature rises, the CO2 level increases while the CO level decreases; conversely, when the furnace temperature drops, the situation is reversed ； (4) Check the slag sample and slag volume, (5) check the pressure difference in the gasification furnace ； (6) Check the level of oxygen-to-coal ratio ； (7) The furnace temperature is determined comprehensively by referring to the levels of the syngas outlet temperature and the chill chamber tray temperature.
Based on the gas composition, methane content, carbon dioxide level, slag port pressure difference, changes in slag samples, and changes in wall temperature, it is possible to determine the furnace temperature. As the furnace temperature rises, the slag fibers become finer, and the proportion of fine slag in the slag water (the solid content) increases.
1. Furnace thermocouple 2. Slag sample from the slag skimmer 3. Methane content in raw gas 4. Carbon dioxide content in raw gas 5. Exit temperature of syngas or tray temperature 6. Oxygen-to-coal ratio
(1) Use high-temperature thermocouples to measure and monitor the temperature of the vaporization furnace； (2) As the methane content changes and the furnace temperature rises, the methane content decreases ； (3) Depending on the changes in CO and CO2 levels, if the furnace temperature rises, the CO2 level increases while the CO level decreases; conversely, when the furnace temperature drops, the situation is reversed ； (4) Check the slag sample and slag volume, (5) check the pressure difference in the gasification furnace ； (6) Check the level of oxygen-to-coal ratio ； (7) The furnace temperature is determined comprehensively by referring to the levels of the syngas outlet temperature and the chill chamber tray temperature.
(1) Use high-temperature thermocouples to measure and monitor the temperature of the vaporization furnace； (2) As the methane content changes and the furnace temperature rises, the methane content decreases ； (3) Depending on the changes in CO and CO2 levels, if the furnace temperature rises, the CO2 level increases while the CO level decreases; conversely, when the furnace temperature drops, the situation is reversed ； (4) Check the slag sample and slag volume, (5) check the pressure difference in the gasification furnace ； (6) Check the level of oxygen-to-coal ratio ； (7) The furnace temperature is determined comprehensively by referring to the levels of the syngas outlet temperature and the chill chamber tray temperature.