SU193651A1 - Method of hydrogenating petroleum and petroleum products - Google Patents

Abstract

THE METHOD OF HYDROGENIZATION OF OILS AND PETROLEUM PRODUCTS by treating them with hydrogen at a pressure of 20-100 atm, at a temperature of 450-600 ° C, characterized in that, in order to simplify the process and ensure its continuity, the process is carried out in the presence of 20-40 weight, 7 , water vapor.

Description

QD WITH

The known method for the hydrogenation of petroleum products on various hydrogenation catalysts under air pressure. The purpose of the invention is to simplify the process and ensure its continuity. For this, the hydrogenation is carried out without a catalyst in the presence of 20-40% by weight of water vapor. The method is as follows. Oiled petroleum or petroleum products (direct race or secondary origin) are subjected to thermo hydrolytic hydrogenation under hydrogen pressure of 20–100 atm, at 450–600 s, in the presence of 20–40 wt.% (From cf) water vapor, without a catalyst at a hydrogen ratio : oil product equal to 0.3–2 m / kg and a flow rate of 0.5–5 h. The process is carried out in a tubular or chamber type reactor using technical hydrogen as the hydrogen-containing gas, process gas from the platforming process or Hydrotreatment, Hydrogen Methane her or pyrolysis coke production. During the processing of petroleum products under these conditions, the raw materials are destroyed and the formation of low-boiling distillate fraction and refined residues. The presence of water vapor in the reaction mixture, in addition to hydrogen, prevents coke formation in the heating system

Characteristics of liquid products of processing (fractions 180-350 s, pressure 40 atm)

Fractional composition of the product of thermohydropic hydrogenation,

7 BUT .

UP TO 180 ° C 180-350C above + loss

Fractions up to 180 ° С

. R

Process conditions 500 ° С, 0.5 h 550 ° С, 1 h

600 ° C, 3 h

27.2

39.0 65.1

53.2

7.7

7,8

sixteen

0.7514

0.7413 27.1 31.4 rivii and allows for pro; The process is continuous for a long time due to the absence of coke formation. The degree of desulfurization without water vapor does not exceed 10–20%; with water, steam reaches 50–80%. With conventional hydrocracking in the presence of catalysts, a significant portion of the hydrogen is spent aimlessly on the hydrogenation of aromatic (bi-tricyclic) hydrocarbons. In the presence of water vapor, the degree of aromatics hydrogenation is reduced by 1.5–2 times and does not exceed 10–15%, and the savings of hydrogen reach 40–45%. Example. Characteristic, raw materials: density rts 0,842; fractional composition. about. %: boiling point 180 ° C, 220 ° C - 10, 256 ° C - 50, 289 ° C - 80, 314 ° C - 90, the end of the boiling point, the content of aromatic hydrocarbons is 26.3%, sulfur is 0.9%, the tempo, solidification is 5 ° WITH; the cetane number is 49. The raw materials are processed at a pressure of at, at a temperature of 500-600 ° C, a space velocity of 0.5, with a ratio of hydrogen: raw materials equal to 0.6, a ratio of water vapor :, raw materials equal to 1: 5 ( see table). The yield of liquid products is 80-95% with hydrogen consumption of 0.4-0.7%. With the full processing of raw materials (with recycling of the residue above 180 ° C), 65-70% of gasoline with an octane number of 70-72 (MM) and a sulfur content of 0.1-0.3% can be obtained,

Claims (2)

THE METHOD OF HYDROGENIZATION OF OIL AND PETROLEUM PRODUCTS by treating them with hydrogen at a pressure of 20100 atm, at a temperature of 450-600 С, characterized in that, in order to simplify the process and ensure its continuity, the process is carried out in the presence of 20-40 weight. £ of water vapor. about δ oo with 05 cl 2 one