Tar distillation dehydration
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During tar processing, ammonia must be removed first. Currently, most domestic units are heated to 120–130°C using tubular furnaces and then dehydrated in a dehydration tower. The water vapor at the top of the tower contains about 0.25% light oil as tar. Once the dry point of the light oil is too high, it cannot be used as a product. Most of the units were involved in secondary light oil and experienced backflow. In the original design of the unit, light oil was returned to the inlet of Stage 1 pump to boil with ammonia in the feed tar, thereby reducing the dehydration temperature. I would like to ask the experts how much energy can be saved with the original design. It's best to have the calculation process. This post was last edited by chinazwr on 2009-2-16 07:27]
I really don’t understand. It’s the first time I’ve heard of such a process. Could you give a brief explanation?/