Coal tar alkali-free normal/reduced-pressure distillation process and device
A technology of atmospheric and vacuum distillation and coal tar, which is applied in tar processing, tar processing by distillation, and tar removal processing by water, etc. The problem of high energy consumption can achieve the effect of easy product sales, good market adaptability and low energy consumption
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[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0037] see figure 1 , a kind of coal tar of the present invention does not add alkali atmospheric and vacuum distillation process, comprises dehydration tower 2, main tower 6 and asphalt tower 11, comprises the following steps:
[0038] (1) The raw material tar 1 enters the dehydration tower 2 after heat exchange, and the light oil 3 distillate and water are extracted from the top of the dehydration tower 2.
[0039] (2) The tar at the bottom of the dehydration tower 2 enters the main tower 6 after heat exchange, and 4 fractions of phenol oil are extracted from the top of the main tower 6; 5 fractions of mixed oil are extracted from the side line; carbon black oil or soft asphalt 7 is extracted from the bottom of the tower; The bottom material of the main tower 6 is drawn out.
[0040] (3) Part of the soft asphalt is taken out from the bottom of the...
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