What should be considered when starting up a hydrocracking unit in winter?
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In winter, the boss wants to start up the hydrogenation process. What precautions should those experienced in hydrogenation cracking units take when operating them in winter?
For heat tracing, ensure that the heat tracing pipes are unobstructed in the pipelines, equipment, and instruments of the reaction and distillation systems; also, ensure that the fire suppression steam pipes remain unobstructed
Prevent freezing of the standby pump, provide heating for oils with high freezing points, as well as heating for water lines; turn the idle pumps over regularly, and clear ice from the ground at the site in winter to avoid safety accidents
Antifreeze and anti-condensation measures, like other processes, involve a thorough inspection of the utility media as well as the process itself