专利汇可以提供Dehydration of coal tar专利检索,专利查询,专利分析的服务。并且PURPOSE: To insure dehydration of coal tar under stabilized conditions, by subjecting water-containing raw coal tar to a preliminary flushing process to remove a part of water and a part of gas oil.
CONSTITUTION: Crude coal tar introduced through a line 1 is passed through heat exchangers 2 and 4 for heating. It is further heated to a predetermined temperature in a heater 5 under pressure and is fed into a flushing tank 7. The heated and pressurized coal tar is flushed in the flushing tank 7, where a greater portion of volatile matters such as water and gas oil contained in it are vaporized and they are fed into the heat exchanger 2. The coal tar from the flushing tank 7 which still contained gas oil and a small amount of water is discharged through a line 15, heated to a predetermined temperature in a heat exchanger 16 and fed into a dehydrating tower 14 for separation of remaining low-boiling fractions such as water and gas oil.
COPYRIGHT: (C)1984,JPO&Japio,下面是Dehydration of coal tar专利的具体信息内容。
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