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

A catalyst and catalyst bed technology, applied in the petroleum industry, processing hydrocarbon oil, hydrocarbon oil treatment products, etc., can solve problems such as good quality of hydrocracking products, improvement of catalyst process, long catalyst operation period, etc., to improve quality, The effect of increasing the content of the target component

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-octane gasoline blending components. The raw oil is subjected to controlled hydrofinishing and hydroconversion reactions, although the target product can be high-octane through technological control Gasoline or blending components, but the selection range of raw materials is still relatively simple, and heavy oil products cannot be used for production, and at the same time, the catalyst has not been effectively improved for the process

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

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Effect test

Embodiment 1

[0043] use figure 1 In the combined process flow shown, straight-run wax oil is selected as the conversion / decondensation raw material for hydrogenation to produce gasoline, and certain refining (nitrogen content 100ppm) 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 aromatic hydrocarbon retaining hydroconversion catalysts, and the commercial catalyst FDW-3 hydrodepreciation catalyst.

[0044] 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

[0046] use figure 1 In the combined process flow shown, straight-run wax oil is selected as the conversion / decondensation 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 aromatic hydrocarbon retaining hydroconversion catalysts, and the commercial catalyst FDW-3 hydrodepreciation catalyst.

[0047] 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

[0049] use figure 1 In the combined process flow shown, straight-run wax oil is selected as the conversion / decondensation raw material for hydrogenation to produce gasoline, and certain refining (nitrogen content 200ppm) and conversion depth (gasoline yield 10%) 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 aromatic hydrocarbon retaining hydroconversion catalysts, and the commercial catalyst FDW-3 hydrodepreciation catalyst.

[0050] 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 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 hydrofining reaction; b) allowing a reaction effluent in the step a) to pass through a reaction zone containing a graded wax oil hydro-conversion catalyst bed layer to perform a hydro-conversion reaction, and feeding a reaction effluent to a flash tankfor separation to obtain a gas phase and a liquid phase; c) performing separation, steam stripping and fractionation on the gas phase obtained in the step b) to obtain converted gasoline; and d) passing the liquid phase obtained in the step b) through a reaction zone containing a hydrodewaxing catalyst bed layer, and carrying out gas-liquid separation and fractionation on the obtained reaction effluent to obtain heavy naphtha, diesel oil with a low condensation point and unconverted oil. The method provided by the invention can be used for producing high-quality gasoline blending components and oil products with low condensation points, and has good economic benefits.

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): C10G67/02
CPCC10G67/02C10G2400/02C10G2400/04C10G2400/10
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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