FIELD: technological processes.
SUBSTANCE: present invention relates to a process and an apparatus for hydrofining or hydroconversion of gas oils, vacuum distillates, atmospheric or vacuum residues or a stream, coming from Fisher-Tropsch synthesis cell. Apparatus includes a reaction site R-1. From R-1 outlet flow is supplied to hot drum-separator of high pressure B-1. From B-1 lower flow is supplied to hot drum-separator of low pressure B-5. Upper stream leaving B-1 is supplied to cold high-pressure separator B-2. Lower flow from B-2 is fed into separating column C-1. Gas outlet flow from B-2 is supplied to compression zone K. Liquid stream from B-1 is supplied to hot drum-separator of low pressure B-5. Upper gas effluent from B-5 makes part of stock for separation column C-1, and liquid outlet flow makes the first part of raw material for main column of fractionation C-2. Separating column C-1 is supplied with liquid stream from B-2 and gas flow produced by B-5. Lower product from C-1 makes the second part of raw material for main separation column C-2. Furnace F-1, heating raw material for reaction site R-1 and/or part of hydrogen required for said reaction area. Pressure in the reaction site ranges from 3 to 18 MPa, temperature—from 200 °C to 450 °C. B-1 operates at pressure at 0.1 to 1.0 MPa lower than in reaction section R-1, and temperature in range from 200 °C to 450 °C. B-2 operates at pressure of 0.1 to 1.0 MPa lower than pressure in B-1 and temperature lower than temperature B-1. B-5 operates at pressure from 0.2 to 2.5 MPa, and temperature from 200 °C to 450 °C.
EFFECT: higher energy efficiency of the process.
6 cl, 1 tbl, 1 ex, 2 dwg
