SU958471A1 - Method for processing heavy petroleum residues - Google Patents

Description

(54) METHOD FOR PROCESSING HEAVY OIL RESIDUES

The invention relates to chemical technology, in particular to the technology of refining petroleum products, and can be used to increase the efficiency of processing heavy oil residues, in particular, fuel oils, in order to increase output, light products.

It is known for the physical treatment of heavy oil residues by ultrasonic irradiation of Ely. . However, the well-known method involves special equipment and does not allow doe: tich high yields of light fractions ..

The closest to the proposed technical essence and the achieved effect is a method of processing heavy oil residues pu-. the mechanical treatment of the residue in the dispersing machine of the rotor type, which uses a machine with an inclined disk, provides intensive mechanical agitation of the raw material 21. The inclusion of such a machine in the fractional column scheme reduces the temperature of its operation.

The known method is characterized by a low yield of light fractions.

When the rotor rotates at a speed of 80008600 rpm, when modeling the process in a homoelectric generator, the yield of the light 5 fraction with a boiling point temperature of up to 420 ° C is only 17.257 wt.% Of the starting product.

The aim of the invention is to increase the yield of light fractions 24010 ... .

This goal is achieved by the fact that according to the method of processing heavy oil residues by mechanical treatment of the residue in a dispersing machine of the rotary type,

15, in which the hydrodynamic rotor-pulsation apparatus is used, the treatment is carried out for 3–10 min in the presence of hydrogen, which is supplied at a speed of 1.0–2.0 l / min. As a dispersing machine of the rotor type, the hydrodynamic rotor-pulsation apparatus and mechanical The treatment is carried out in the presence of hydrogen, which is supplied to the apparatus at a certain rate.

The advantage of the proposed method of processing is to increase the yield of light fractions 24030 420 ° C to 18.549-34.118 weight,%.

A rotor pulsation apparatus type GRPA-65 is used for processing, which allows, at a rotor speed of 8600 rpm, interruption of flow continuity at a frequency of 15 kHz.

Such a frequency of pulsation in the closed volume of a fluid medium such as fuel oil not only contributes to the impact on the reaction medium of large shear stresses and hydraulic shocks, but is also often a threshold 4,253

12,503

Mazut

PCP - paraffin-cycloparaffin compounds

Primer p. After switching on the electric motor, 400 g of fuel oil is loaded into a rotary pulsating anrtapaT. At the same time, hydrogen is bubbled into the reaction zone with a bulk velocity of 2 liters / min. The oil after passing through the reaction zone is removed from the apparatus and returned to the apparatus through the tank for further processing. After 5 minutes, the mechanical destruction products are unloaded. The treatment is carried out without heat supply. The temperature in the apparatus spontaneously rises to 70 ° C and is maintained at this level during the experiment.

The fuel oil treated for a specified time is discharged, the group composition is determined and fractionated under

Oh the occurrence of a cavitation effect.

Carrying out the dispersion of heavy oil residues in a hydrogen medium makes it possible to increase the degree of mechanical destruction and, accordingly, to increase the yield of light fractions.

As an example of processing heavy oil residues, fuel oil from the Angarsk Oil Refining Plant is used (Table 1). .

Table 1

16.756 14.673 21.201

vacuum in a Favorsky flask at 1 mm residual pressure. The Mechano-Destruction Effect is assessed by the change in the content in the products of mechanical destruction of asphaltenes and resins and paraffin-cycloparaffin compounds (PCP), separated by column chromatography on an ASC brand gel and by the number of light fractions selected in the temperature range 240-340 ° C and 341420 ° C.

The rest of the experiments are carried out as in the above example, only the hydrogen supply rate and the processing time vary.

The test results are presented in table. 2.. l)

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Claims (2)

n 7 9584 given in Table. 2 data on the change in the yield of light fractions and the percentage ratio between the asphalt-resinous part and the paraffin-cycloparaffin compounds in the treated fuel oils, as compared with the initial ones, show that under the conditions of mechanochemical treatment using the HF 65, mechanical destruction of high-molecular molecules is performed fuel oil. 5 minutes in duration processing on the GRG1A-65 corresponds to the maximum increase in the yield of light products. An increase in the processing time creates conditions for the pro- .15 kani secondary processes with the formation of high-molecular compounds. 18 Claims. The method of processing heavy oil residues by mechanically processing the residue in a dispersing machine of a rotary type, and with the fact that, in order to increase the yield of light fractions with boiling range of 240–4.20 ° C, as a dispersant Machines use the Pbdynamic rotor-pulsation guide and apparatus are processed for 3-10 minutes in the presence of hydrogen, which is fed at a speed of 1.0-2.0 l / min: Sources of information taken into account during the examination 1. USSR author's certificate 159587 , cl. C 10 G 21/00, 1962, 2. Patent of the Fraction W 2203870, c. 10 G 15/00, published. 1975 (prototype).