SU1310421A1 - Method for producing gaseous and liquid hydrocarbons - Google Patents

Abstract

The invention relates to petrochemistry, in particular to the production of gaseous and liquid hydrocarbons. Increase the yield of target substances and increase the aromatic content. hydrocarbons in a mixture of liquid hydrocarbons is achieved using a different catalyst (QD) and carrying out the process under certain conditions. The production of hydrocarbons is carried out by the destruction of gasoline at 420–480 ° C in the presence of CT — a bivarium barium chloride and a volumetric feed rate of 0.1–3.4 h. The tests show an increase in the yield of nut-like products by 29.7–60.5 wt.% , but. aromatic hydrocarbons in liquid products to 10.44-24.98 wt.%. 4 tab. (L

Description

1131U42

The invention relates to the oil refining and petrochemical industries, in particular, to a method for producing gaseous hydrocarbons that can be used for 5 production of polymers (C2 C5 hydrocarbons) and alkylates (C4-C5 hydrocarbons), in hydrogenation processes () hydrogen ), as a stove

The reaction enters the gas drum with a liquid gate and the liquid products of the reaction are sent to a special receiver. The composition of the reaction products is analyzed by chromatography,

At 450 ° С, a removable feed rate of 1.1, a mass fraction of 52 was obtained. gaseous and 48 wt.% liquid protopliv (methane), as well as liquid carbon-80 products of the reaction. The composition of gaseous hydrogens that can be used is the reaction products, wt.%: Hj 0.29;

They are used in the preparation of motor gasolines (fraction, boiling up to 195 C), diesel and boiler fuel (fraction 195-284 ° С).

The purpose of the invention is to increase the yield of gaseous hydrocarbons, increase the yield of gaseous hydrocarbons, increase the content of aromatic hydrocarbons in the liquid reaction products.

Example 1. Experiments on the catalytic degradation of gasolines were carried out using a 47.7 cm flow reactor. The heating of the reactor is carried out using a tube furnace. Catalyst BaC1 -2H20 is charged to the reactor. The reaction is carried out at atmospheric pressure under isothermal conditions. As a gasoline, use is made of a gasoline unit for the thermal cracking of fuel oil of West Siberian oil with the following characteristics: Density, g / cm; Boil-off limits; C Group hydrocarbon composition, wt.%: Unlimited hydrocarbons

0.754 68-196

including olefins, diolefins, aromatic hydrocarbons, naphthenic hydrocarbons, paraffin hydrocarbons, tetralins, indans

33.54

22.75 10.79

14.32 9.01

39.05 4.08

The reaction products are sent to a water cooler with a separator to separate the gaseous and liquid reaction products. From the refrigerator, the gaseous reaction products flow into a gas drum with a liquid gate, and the liquid reaction products are sent to a special receiver. The composition of the reaction products is analyzed by chromatography,

At 450 ° С, a volumetric feed rate of 1.1, 52 wt.% Of gaseous and 48 wt.% Of liquid pro5 are obtained.

0

0

five

0.810 46-266

CH4 16.55; 37.50; C, Hg 5.14; C, Nb 27,23; 0.40; p-C4I, o - traces, 2.65; 5.76; cis-C Kg 3.55; ZC, 0.93. Characteristics of liquid reaction products Density, g / cm Limits of boil-off, С

Group hydrocarbon composition, May.%:

Unsaturated hydrocarbons in total

including olefins, diolefins

. Aromatic hydrocarbons Naphthenic hydrocarbons Paraffin hydrocarbons

21.60

15.81 5.79

36.24 5.02 31, 47

Tetralines, indans.

Example 2-7: similar to the example

5.67

The experiments were carried out so that

The idea is that the process is carried out at 415-485 ° C. The results of the experiments are presented in table.1 and 2.

Examples 8-14. The experiments were conducted 45 d t analogously to example 1, with the difference that the process was carried out at volumetric feed rates of 0.09-3.5 hours. The results of the experiments are presented in table 3 and 4.

50

Analysis of the results

shows that the proposed method in comparison with the known increases the yield of gaseous products of the process by 29.7–60.5 wt.% and the content of aromatic hydrocarbons in the liquid products of the process by 10.44– 24.98 wt.%. And also reduces the process temperature by 40-100 C.

The use of a catalytic degradation process for gasolines using two-water barium chloride as a catalyst makes it possible to increase valuable resources: gaseous feedstock for the production of polyethylene, polypropylene, oligo- and polybutenes (in polymerization processes), alkylates (in catalytic articulation processes) and also increases resources of liquid components of automobile gasolines and a high content of aromatic hydrocarbons, components of diesel fuels, diluents of heavy oil residues for the purpose of gas turbine fuels and fuel oil. An economically advantageous factor in reducing energy costs and costly structural materials is the use of low temperatures and atmospheric pressure in the process of catalytic destruction.

Claims (1)

Invention Formula The method of producing gaseous and liquid hydrocarbons by decomposing gasolines at elevated temperatures in the presence of a catalyst, is characterized in that, in order to increase the yield of the target products and increase the content of aromatic hydrocarbons in a mixture of liquid hydrocarbons, chlorofluoride is used as catalysts Bari and the process is carried out at a temperature of A20-480 ° C and a flow rate of the raw material supply of 0.1-3.4 hours. cr N t; Yu D) n