A method for producing gasoline and oil with a low condensation point by a catalyst grading technology

A catalyst and gasoline technology, applied in the direction of molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of good quality hydrocracking products, catalyst process improvement, single raw material selection range, etc., to increase content, The effect of improving quality

Active Publication Date: 2019-07-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] CN101724454A introduces a hydrocracking method for producing high-octane gasoline. The raw material oil is mixed with hydrogen and enters the reactor for hydrofining and hydrocracking reactions in turn. Although it has the ability to process more inferior raw materials and the catalyst has a long operating cycle and hydrocracking products with good quality
[0007] CN103184073A introduces a hydrocracking method for producing high-

Method used

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  • A method for producing gasoline and oil with a low condensation point by a catalyst grading technology
  • A method for producing gasoline and oil with a low condensation point by a catalyst grading technology
  • A method for producing gasoline and oil with a low condensation point by a catalyst grading technology

Examples

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Effect test

Embodiment 1

[0042] use figure 1 In the combined process flow shown, straight-run wax oil is selected as the conversion / cracking / isomerization raw material for hydrogenation to produce gasoline, and certain refining (nitrogen content 100ppm) and conversion depth (gasoline yield 30%) are controlled. The catalysts used in the examples are the commercial catalyst FF-36 hydrotreating catalyst, the special hydroconversion catalysts A, B and C single-ring aromatics retained hydroconversion catalysts, and the commercial catalyst FC-14 hydrocracking catalyst.

[0043] The properties of catalysts A, B and C are shown in Table 1, the properties of feed oil are shown in Table 2, and the operating conditions are shown in Table 3.

Embodiment 2

[0045] use figure 1 In the combined process flow shown, straight-run wax oil is selected as the conversion / cracking / isomerization raw material for hydrogenation to produce gasoline, and certain refining (nitrogen content 200ppm) and conversion depth (gasoline yield 30%) are controlled. The catalysts used in the examples are the commercial catalyst FF-36 hydrotreating catalyst, the special hydroconversion catalysts A, B and C single-ring aromatics retained hydroconversion catalysts, and the commercial catalyst FC-14 hydrocracking catalyst.

[0046] The properties of catalysts A, B and C are shown in Table 1, the properties of feed oil are shown in Table 2, and the operating conditions are shown in Table 3.

Embodiment 3

[0048] use figure 1 In the combined process shown, straight-run wax oil is selected as the conversion / cracking / isomerization raw material for hydrogenation to produce gasoline, and certain refining (nitrogen content 200ppm) and conversion depth (gasoline yield 20%) are controlled. The catalysts used in the examples are the commercial catalyst FF-36 hydrotreating catalyst, the special hydroconversion catalysts A, B and C single-ring aromatics retained hydroconversion catalysts, and the commercial catalyst FC-14 hydrocracking catalyst.

[0049] The properties of catalysts A, B and C are shown in Table 1, the properties of feed oil are shown in Table 2, and the operating conditions are shown in Table 3.

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Abstract

The invention discloses a method for producing gasoline and diesel oil with a low condensation point by a catalyst grading technology. The method comprises the following steps: a) mixing a heavy oil raw material with hydrogen, and allowing the mixture to pass through a reaction zone containing a hydrorefining catalyst bed layer to perform a restrictive hydrorefining reaction; b) allowing a reaction effluent obtained in the step a) to pass through a reaction zone containing a graded wax oil hydro-conversion catalyst bed layer under hydro-conversion process conditions, and allowing a reaction effluent to enter a flash tank for separation so as to obtain a gas phase and a liquid phase; c) performing subsequent separation, steam stripping and fractionation on the gas phase in the step b) to obtain converted gasoline; and d) allowing the liquid phase in the step b) to pass through a reaction zone containing a wax oil hydrocracking catalyst bed layer to perform a hydrocracking/isomerizationreaction under a hydrocracking condition, and separating and fractionating the reaction effluent to obtain heavy naphtha, low-condensation-point diesel oil and unconverted oil. According to the method, high-quality gasoline blending components and low-condensation-point diesel oil can be obtained, and good economic benefits are achieved.

Description

technical field [0001] The invention relates to a processing method of wax oil components, specifically a production method for producing high-quality gasoline by processing wax oil raw materials through catalyst gradation technology, and by-product liquid products such as high-quality high-quality low-condensation oil. Background technique [0002] Gasoline is one of the most used light petroleum products and is an important fuel for engines. It can be obtained from different units of petroleum refining. During crude oil processing, distillation, catalytic cracking, thermal cracking, hydrocracking, catalytic reforming and other units all produce gasoline components, but the octane number is different. For example, straight-run gasoline has a low octane number and cannot be used as engine fuel alone; in addition, the sulfur content of impurities is also different, so gasoline components with high sulfur content need to be desulfurized Refining, and finally, the above-mention...

Claims

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Application Information

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IPC IPC(8): C10G67/02B01J29/16
CPCB01J29/166B01J2229/18C10G67/02C10G2300/1037C10G2400/02
Inventor 王仲义崔哲彭冲曹正凯孙士可吴子明
Owner CHINA PETROLEUM & CHEM CORP
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