A kind of lightening method of whole distillate fraction of coal tar
A full-distillate, coal tar technology, applied in the field of coal chemical industry, can solve the problems of unreasonable diesel-gasoline ratio, short operation period and high energy consumption
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Embodiment 1
[0077] The structure of the two-stage slurry bed reactor of the present embodiment is as follows figure 2 As shown in , the specific operation method is as described in the above-mentioned preferred embodiment of the present invention.
[0078] In this embodiment, the length of the sleeve is 3 / 5 of the length of the inner chamber of the two-stage slurry bed reactor; The length of the inside of the sleeve is 200 mm, the length of the underflow pipe is 100 mm, and the ratio of the length of the inner cavity of the slurry bed reactor to the inner diameter of the inner cavity of the slurry bed reactor is 10:1. The hydrocyclones are set in two stages, and the volumes of the two-stage hydrocyclones are the same, and the ratio of the volume of each hydrocyclone to the volume of the inner cavity of the slurry bed reactor is 1:800.
[0079] The flow rate of hydrogen is controlled so that the average velocity of the reaction materials in the inner cavity of the secondary slurry bed re...
Embodiment 2-4
[0094] Embodiment 2-4 adopts the technical process identical with embodiment 1 to carry out, and difference is that process condition is different, specifically, the relevant reaction conditions and the result in the one-stage slurry bed reactor of embodiment 2-4 are as table Shown in 2; Relevant reaction conditions and results in the two-stage slurry bed reactor are as shown in Table 3; Relevant reaction conditions and results of the fixed-bed hydroprocessing unit are as shown in Table 4, and product properties are shown in Table 5 .
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