Is the water injection before air cooling in diesel hydrorefining continuous or intermittent?
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Is the water injection before air cooling in diesel hydrorefining continuous or intermittent?
It is continuous before air cooling, and intermittent before high-speed switching
Before air cooling here, water is injected continuously; for high-temperature heat exchange, intermittent water injection is considered
Before air cooling and before high-temperature exchange, continuous injection takes place; however, the amount of water injected before high-temperature exchange is adjusted based on the results of sampling analyses. If there are no significant changes in the analysis of the raw material, then there are also no significant changes in the amount of water injected, with the key factor being the nitrogen content in the raw material
Continuous water injection before air cooling, with the injection point switched to a location several hours before high-temperature operation at a fixed time each week.
It is recommended to carry out continuous water injection during hydrogenation. Changes in the properties of the raw materials, as well as variations in operating conditions and weather, can lead to changes in the temperature and location where salt formation occurs. Once ammonium salts are formed, it becomes difficult to address the issue related to this water