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Preparation method for light oil

A light oil and heavy oil technology, applied in the field of oil refining and chemical industry, can solve the problem of low yield of light oil and achieve the effect of reducing damage

Inactive Publication Date: 2016-01-27
HUNAN WANTONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The yield of light oil obtained by combining the deasphalting process and the delayed coking process provided by the prior art is relatively low, and the yield is in the range of 73% to 74%.

Method used

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  • Preparation method for light oil

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preparation example Construction

[0028] The invention provides a kind of preparation method of light oil, comprises the following steps:

[0029] 1), under the action of stirring, the heavy oil is visbroken to obtain an intermediate product;

[0030] 2) Under the action of stirring and catalyst, the intermediate product is subjected to catalytic cracking to obtain light oil.

[0031] The present invention combines visbreaking and catalytic cracking processes to prepare light oil. Both the visbreaking and catalytic cracking are carried out under the condition of stirring, and the reaction materials are dispersed by stirring to increase the liquid droplets of the reaction materials. The evaporation area increases, which in turn increases the surface curvature of the droplet, thereby increasing the vapor pressure of the droplet, which will increase the gasification of the reaction material during visbreaking and catalytic cracking, and reduce the amount of petroleum coke produced. , thereby improving the yield ...

Embodiment 1

[0057] The cobalt naphthenate of 25kg, the ethylene glycol monomethyl ether of 40kg, the acidified activated clay of 5kg, the glyceryl stearate of 10kg and the chlorinated paraffin 70 of 20kg are mixed homogeneously, obtain catalyst; Described acidified activated clay is obtained by mass It is obtained by mixing sulfuric acid with a concentration of 98% and clay at a mass ratio of 1:49.

Embodiment 2

[0059] The cobalt naphthenate of 20kg, the ethylene glycol monomethyl ether of 30kg, the acidified activated clay of 3kg, the glyceryl stearate of 20kg and the chlorinated paraffin 70 of 27kg are mixed homogeneously, obtain catalyst; Described acidified activated clay is obtained by mass It is obtained by mixing sulfuric acid with a concentration of 98% and clay at a mass ratio of 1:49.

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Abstract

The invention provides a preparation method for light oil. The preparation method comprises the following steps: 1) under stirring, carrying out visbreaking on thick oil to obtain an intermediate product; and 2) under the effects of stirring and a catalyst, carrying out catalytic cracking on the intermediate product to obtain the light oil. The preparation method provided by the invention combines a visbreaking process with a catalytic cracking process to prepare the light oil. In the preparation method, visbreaking and catalytic cracking are carried out in a stirring condition, and reaction materials are dispersed by virtue of stirring to increase the evaporating area of reaction material liquid drops, so that the gasification amount of the reaction materials in the visbreaking and catalytic cracking processes is reduced, and the generation amount of petroleum coke is reduced. The preparation method for the light oil provided by the invention is relatively high in yield. Experimental results show that the yield of the preparation method for the light oil is 75-84%.

Description

technical field [0001] The invention relates to the technical field of oil refining and chemical industry, in particular to a method for preparing light oil. Background technique [0002] Heavy oil refers to crude oil with high asphalt and colloid content and high viscosity, which has the characteristics of high viscosity and high freezing point. Due to the characteristics of high viscosity and high freezing point of heavy oil, it has encountered some technical difficulties in its application. Large, high content of refractory components such as sulfur, nitrogen, metals and acids in residual oil increases the difficulty of refining heavy oil. Therefore, it has become the focus of people's attention to carry out upgrading treatment of heavy oil and use heavy oil to prepare light oil. [0003] At present, the methods of refining light oil from heavy oil mainly include solvent deasphalting process, visbreaking process, delayed coking process, catalytic cracking process and hy...

Claims

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Application Information

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IPC IPC(8): C10G51/04
CPCC10G51/04C10G11/00C10G11/02
Inventor 曹志德张善印张春伟彭红娜
Owner HUNAN WANTONG TECH
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