RU2241736C1 - Fuel - Google Patents

Abstract

FIELD: oil-refining and automotive industries.

SUBSTANCE: the invention is dealt with fields of oil processing and automotive industries, in particular, with a composition of fuel intended for use in carburetor engines of cars. The fuel contains up to 50 % of a fraction of benzine of a catalytic reforming, 15-30 % of an isomerizate, up to 30 % of alkyl benzene, up to 35 % of benzine of a catalytic cracking, 6-8 % of a fraction, which is boiling within the interval of temperatures of 30-180°С, up to 10 % of fraction extracted from of liquid products of pyrolysis of ethylene production, up to 10 % of gaseous benzine and the rest up to 100 % - benzine of a catalytic reforming. The fuel may contain fractions of benzine of the catalytic reforming boiling within the intervals of boiling start-up-85°С, and-or 85-140°С, and-or 140-200°С, and-or the residual from distillation of benzine of a catalytic reforming and also antioxidative dopant in the amount of 0.03-0.15 mass %. The invention allows to magnify a resource of the fuel, expands the raw materials base and increases production of gasolines in terms of petroleum.

EFFECT: the invention allows to magnify a resource of the fuel, expands the raw materials base and increases production of gasolines in terms of petroleum.

3 cl, 2 tbl

Description

The invention relates to the field of oil refining, as well as to the automotive industry, in particular, to the composition of the fuel intended for use in carburetor engines of automobiles.

Known fuel, including a fraction of 35-150 ° C of gasoline for catalytic reforming, gasoline for catalytic reforming, gasoline for catalytic cracking and alkylate, taken in the ratio of 40-70, 10-30, up to 100, respectively (USSR Patent No. 2009167, C 10 G 59/00 , 1994).

However, this gasoline composition has a low octane rating and the addition of ethyl fluid is required.

Known fuel, including the fraction of catalytic reforming gasoline 110 ° C-KK, catalytic reforming gasoline, alkylate, isomerizate, taken in ratios, wt.%: 15-40, 30-60, 15-40, 5-15, respectively (RF Patent No. 2078792, C 10 G 63/00, 1997).

However, a significant content of aromatic hydrocarbons degrades the environmental performance of the fuel.

It is also known fuel, including, wt.%:

Fraction of 35-150 ° C of catalytic reforming gasoline 55-80

Fraction of 100-190 ° C of catalytic reforming gasoline 5-15

Alkylbenzene 10-20

Straight-run gasoline fraction 5-15

(USSR patent No. 2009168, C 10 G 59/00, 1994).

To obtain commercial fuel, additives such as tetraethyl lead, antioxidant additive, and dye are introduced into the composition.

Closest to the claimed technical solution is fuel, including catalytic reforming gasoline, its fractions boiling in the intervals NK-85 ° C, 85-140 ° C, 140-200 ° C, 200 ° C-KK, isomerizate. In addition, the fuel may contain alkylbenzene, catalytic cracking gasoline, straight-run gasoline fraction, ethers of alcohols C ₁ -C ₅ or mixtures thereof with lower alcohols C ₁ -C ₄ (RF Patent No. 2153523, C 10 L 1/04, 2000 g .).

The disadvantage of this fuel is its insufficient starting properties when used in carburetor engines.

The objective of the present invention is to increase the resource of fuel, expanding the raw material base and increasing the production of motor gasolines per oil.

To solve this problem, fuel is proposed, including, wt.%:

Catalytic reforming gasoline fractions up to 50

Isomerizate 15-30

Alkylbenzene up to 30

Catalytic cracking gasoline up to 35

The fraction boiling in the range of 30-180 ° C, isolated from liquid ethylene production pyrolysis products 6-8

Gasoline up to 10

Catalytic reforming gasoline up to 100

Moreover, the fuel contains fractions of catalytic reforming gasoline boiling in the intervals NK-85 ° C, and / or 85-140 ° C, and / or 140-200 ° C, and / or the residue from the acceleration of gasoline of catalytic reforming, as well may contain in its composition 0.03-0.15% wt. antioxidant additives.

The difference of the proposed technical solution is the content in the fuel fraction boiling in the range of 30-180 ° C, isolated from the liquid pyrolysis products of the production of ethylene and gasoline, as well as the ratio of components. The use of pyrolysis products of straight-run gasoline fractions in automobile fuel compositions is known. However, the use of these products is complicated by the presence of rapidly osmotic diene and other unsaturated hydrocarbons in them. Therefore, as a rule, car fuels contain hydrogenated pyrolysis fractions. The authors propose introducing a new component into the fuel composition, which is a waste product from the production of ethylene by pyrolysis. The fraction boiling in the range of 30-180 ° C, which is separated by rectification from liquid pyrolysis products of ethylene production as an overhead, contains up to 65% of aromatic hydrocarbons (toluene and benzene) and a small amount of olefinic hydrocarbons. This product, called gasoline-pyropolymer, is proposed for the first time to be introduced into automobile fuels. Studies have shown that gasoline-pyropolymer can be used as a high-octane component for the production of motor gasolines, in particular Regular-92 gasoline.

The proposed combination of components is new and allows to increase the fuel resource, while using the by-product of the main production as part of the fuel, thereby increasing the production of automotive fuels for oil.

To prepare the proposed fuel, stable catalytic reforming gasoline, a mixture of catalytic reforming gasoline fractions boiling in the NK ranges of 85 ° C, 85-140 ° C, 140-200 ° C, as well as the remainder from the acceleration of catalytic reforming gasoline with the addition of the rest can be used the above components. Upon receipt of fuel, a fraction of straight-run gasoline NK-85 ° C can also be used. All components of the proposed fuel are produced at industrial refineries.

The characteristics of the components used to prepare samples of the proposed fuel are shown in table 1.

Based on these components, automobile fuel samples were prepared that meet the requirements of GOST for Normal-80 (A-76) fuel and Regular-92 (AI-92) fuel. Fuel samples were prepared by mixing the components with stirring.

The composition of the prepared fuel samples, their physico-chemical and antiknock properties are shown in table 2.

Claims (3)

1. Fuel, including catalytic reforming gasoline and its fractions, isomerizate, alkylbenzene, catalytic cracking gasoline, characterized in that it further comprises a fraction of 30-180 ° C, isolated from liquid ethylene production pyrolysis products, and gas gasoline in the following ratio of components, wt.%: Catalytic Reform Gasoline Fractions Up to 50 Isomerizate 15-30 Alkylbenzene Up to 30 Catalytic Cracking Gasoline Up to 35 Fraction 30-180 ° C, isolated from liquid pyrolysis products ethylene production 6-8 Gasoline Up to 10 Gasoline Reforming Up to 100 2. The fuel according to claim 1, characterized in that it contains fractions of catalytic reforming gasoline boiling in the intervals NK-85 ° C, and / or 85-140 ° C, and / or 140-200 ° C, and / or the remainder of acceleration of gasoline catalytic reforming. 3. Fuel according to claims 1 and 2, characterized in that it further comprises an antioxidant additive in an amount of 0.03-0.15 wt.%.