Hydrogenation process combination method
A combined method and process technology, which is applied in the field of hydrogenation process combination, can solve the problems of not making full use of the temperature rise of coking light distillate oil, high total investment cost, and insignificant necessity, so as to improve product quality and operating cost Low cost and equipment saving effect
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[0031] The technical process of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0032] Such as figure 1 As shown, the wax oil raw material 1 is mixed with hydrogen 2 and enters the first reaction zone 3 to obtain a hydrotreated stream 4 with low content of impurities such as sulfur and nitrogen. The hydrotreated stream 4 is separated in the hot high-pressure separator 5, and the obtained hydrogenated wax oil 6 is directly discharged from the device, and the separated gas phase (including hydrogen and light distillate oil) 7 is mixed with the coker gasoline raw material 8, and then enters the first In the second reaction zone 9, the hydrogenation reaction is carried out in the presence of the gasoline hydrofinishing catalyst, and the reaction effluent 10 is mixed with the diesel feedstock 11 and enters the third reaction zone 12, where the hydrogenation reaction is carried out in the presence of the diesel hydrofinishing ...
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