The method of producing a component of low-sulphur fuel stove

 

(57) Abstract:

The invention can be used in the petrochemical industry. Component low-sulfur heating oil is produced by Hydrotreating in the presence of a catalytic system consisting of layers almocabar and alumonickelsilicate catalysts, petroleum fractions with temperatures at the beginning of the boil 280-320oC, the end of the boil 360-390oC. at the same time as during the first raw material layer loaded in the amount of 10-50 wt.% from the total mass of the catalytic system presulfiding allocability the catalyst with a sulfur content of 1.5 (+M)S, where C is the content of cobalt oxide in lookbetteronline.com catalyst, wt.%; And the content of molybdenum oxide in aluminumaluminium catalyst, wt. %; S - sulfur content in the feedstock, wt. %. The method allows to obtain the target product with a sulfur content of not more than 0.1 wt.%. table 2.

The invention relates to the refining, in particular to methods of Hydrotreating petroleum fractions.

Furnace fuel is produced by compounding virgin and secondary oil fractions. In the currently released furnace fuel sulfur content reaches up to 1.0% [1]. is the sweet components. The bottleneck is the hydrodesulphurization unit heavy diesel fractions, which are part of the furnace fuel and make the number of sulfur-containing components. There is a method of Hydrotreating a petroleum distillate in an environment of hydrogen at elevated temperature and pressure with the use of Ecumenical or aluminoborosilicate catalysts (235-247) [2]. Note: this method does not give the required depth hydrodesulphurization unit heavy diesel fractions. The closest in technical essence and the achieved effect is a method of Hydrotreating a hydrocarbon feedstock in the presence of a catalytic system consisting of layers of allocability and alumonickelsilicate catalysts [3].

The disadvantage of this method is insufficient hydrodesulphurization unit heavy diesel fractions - component fuel stove.

The aim of the invention is to obtain sulphur content, sulphur content not more than 0.1 wt.%, component fuel stove.

This goal is achieved by a method of producing a component with a low sulphur furnace oil by Hydrotreating in the presence of a catalytic system consisting of layers of allocability and Ecumenical - 90oC,provided that during the first raw material layer load in the amount of 10 to 50 wt.% from the total mass of the catalytic system presulfiding allocability the catalyst with a sulfur content of 1.5 (+M)S, where C is the content of cobalt oxide in lookbetteronline.com catalyst, wt.%; M - the content of molybdenum oxide in lookbetteronline.com catalyst, wt.%; S is the sulfur content in the feedstock, wt.%.

The hallmark of the invention is that as the first in the course of the raw material layer load in the amount of 10 to 50 wt.% from the total mass of the catalytic system pedalirovanii aluminoborosilicate the catalyst with a sulfur content of 1.5 (S+5)S, where C is the content of cobalt oxide in aluminoborosilicate catalyst, wt.%; M - the content of molybdenum oxide in aluminoborosilicate catalyst, wt.%; S is the sulfur content in the feedstock, wt.%.

The use of the above catalytic system contributes to obtaining on the catalyst surface the optimal number of active sites responsible for the reactions of hydrodesulphurization unit.

In known ways of obtaining low-sulfur components pacnog the ie meets the criteria of "novelty" and "significant difference".

Examples.

Testing of the invention carried out in the oil fractions, whose characteristics are shown in table 1.

Testing of the invention in the fractions having a temperature at the beginning and end boiling point below in the formula of the proposed technical solutions, not shown, so as to further facilitate the fractional composition of the invention leads in the category of diesel fuels, and the meaning is lost.

The tests were carried out on two samples of catalysts. In lookbetteronline.com catalyst (AKM) is the content of molybdenum oxide amounted to 16.0 wt. %, the content of cobalt oxide to 4.0 wt.%, in aluminumaluminium (AMN), the content of molybdenum oxide was $ 18.0 wt.% Nickel oxide to 6.0 wt. %. Presulfiding allocability catalyst was obtained by processing an oxide aluminoborosilicate catalyst elemental sulfur, taken in an amount determined in accordance with the claimed formula. Before serving raw materials spent activation used catalytic systems in the environment of hydrogen containing gas with a gradual rise in temperature from ambient temperature to 400oC.

The Hydrotreating process was carried out at a temperature which Wu catalytic systems according to examples 1 to 7 shown in table.2. In this same table shows the sulfur content in the resulting product, as well as similar data for carrying out the process in a known manner (example 7). Examples 1 and 2 are made in accordance with the proposed invention. Examples 3-6 shows how the beyond.

From these data suggest that failure to comply with the composition of the catalytic system and the sulfur content in presulfiding catalyst leads to lower degree of purification.

Sources of information

1. Products.- M.: Chemistry, 1978, S. 69 - 71.

2. Sukhanov B. N. Catalytic processes in petroleum refining.-M, Chemistry, 1979, S. 235 - 247.

3. The US patent N 4243519, class C 10 G 65/04, 1981.

The method of producing a component with a low sulphur furnace oil by Hydrotreating in the presence of a catalytic system consisting of layers almocabar and alumonickelsilicate catalysts, petroleum fractions with temperatures at the beginning of the boil 280 - 320oC, the end boiling point of 360 - 390oC, characterized in that during the first raw material layer load in the amount of 10 to 50 wt.% from the total mass of the catalytic system, presulfiding allocability the catalyst with a sulfur content

1,5 (C + M)S,

g is lyriana in aluminumaluminium catalyst, wt.%;

S is the sulfur content in the feedstock, wt.%.

 

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FIELD: production of hydrorefining catalyst.

SUBSTANCE: the invention presents a method of production of hydrorefining catalysts, that provides for preparation of non-calcined catalyst for hydrorefining of hydrocarbonaceous raw materials polluted with low-purity heteroatoms. The method includes: combining of a porous carrying agent with one or several catalytically active metals chosen from group VI and group III of the Periodic table of elements by impregnation, joint molding or joint sedimentation with formation of a predecessor of the catalyst containing volatile compounds, decrease of the share of the volatile compounds in the predecessor of the catalyst during one or several stages, where at least one stage of decrease of the shares of the volatile compounds is carried out in presence of at least one compound containing sulfur; where before the indicated at least one integrated stage of decrease of the share of volatile compounds - sulfurization the indicated predecessor of the catalyst is not brought up to the temperatures of calcination and the share of the volatile compounds in it makes more than 0.5 %. Also is offered a not-calcined catalyst and a method of catalytic hydrorefining. The invention ensures production of a catalyst of excellent activity and stability at hydrorefining using lower temperatures, less number of stages and without calcination.

EFFECT: the invention ensures production of a catalyst of excellent activity and stability at hydrorefining using lower temperatures, less number of stages and without calcination.

10 cl, 8 ex, 4 dwg

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