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Catalyst grading technology to produce gasoline and a method for producing more low pour point oil

A catalyst and grading technology, applied in the treatment of hydrocarbon oil, petroleum industry, hydrocarbon oil treatment products, etc., can solve the problems of inability to use heavy oil production, single selection of raw materials, and good quality of hydrocracking products.

Active Publication Date: 2021-02-05
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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  • Catalyst grading technology to produce gasoline and a method for producing more low pour point oil
  • Catalyst grading technology to produce gasoline and a method for producing more low pour point oil
  • Catalyst grading technology to produce gasoline and a method for producing more low pour point oil

Examples

Experimental program
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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 raw material for conversion / upgrading / depression for hydrogenation to produce gasoline, and certain refining (nitrogen content 100ppm) and conversion depth (gasoline yield 10%) are controlled. The catalysts used in the examples are commercial catalyst FF-36 hydrotreating catalyst, special hydroconversion catalyst A, B and C single-ring aromatics retaining hydroconversion catalyst, commercial catalyst FC-18 hydrogenation upgrading catalyst and FDW-3 Hydrodecondensation catalyst. Among them, FC-18 and FDW-3 are filled in layers, and the volume ratio is 1:1.

[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 raw material for conversion / upgrading / deregulation 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 commercial catalyst FF-36 hydrotreating catalyst, special hydroconversion catalyst A, B and C single-ring aromatics retaining hydroconversion catalyst, commercial catalyst FC-18 hydrogenation upgrading catalyst and FDW-3 Hydrodecondensation catalyst. Among them, FC-18 and FDW-3 are filled in layers, and the volume ratio is 1:1.

[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 raw material for conversion / upgrading / deregulation for hydrogenation to produce gasoline, and certain refining (nitrogen content 200ppm) and conversion depth (gasoline yield 5%) are controlled. The catalysts used in the examples are commercial catalyst FF-36 hydrotreating catalyst, special hydroconversion catalyst A, B and C single-ring aromatics retaining hydroconversion catalyst, commercial catalyst FC-18 hydrogenation upgrading catalyst and FDW-3 Hydrodecondensation catalyst. Among them, FC-18 and FDW-3 are filled in layers, and the volume ratio is 1:1.

[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 high-yield low-condensation oil by catalyst gradation technology. The method comprises: a) the heavy oil raw material is mixed with hydrogen and then passed through a reaction zone containing a hydrofinishing catalyst bed for hydrofinishing reaction; b) the reaction effluent obtained in step a) is hydroconverted through a reaction zone containing graded wax oil The reaction zone of the catalyst bed is subjected to a hydrogenation conversion reaction, and the reaction effluent enters the flash tank and is separated to obtain a gas phase and a liquid phase; c) the gas phase described in step b) is separated, stripped, and fractionated to obtain converted gasoline; d ) The liquid phase described in step b) is passed through the reaction zone containing the hydrogenation upgrading catalyst and the hydrogenation decondensation catalyst bed to perform the upgrading and decondensation reaction, and the reaction effluent is subjected to gas-liquid separation and fractionation to obtain heavy naphtha, low Condensed diesel oil and unconverted oil. The method of the invention can produce high-quality gasoline blending components, and can produce more low-condensation oil products, and has good technical effects.

Description

technical field [0001] The invention relates to a method for processing wax oil components, specifically a method for producing high-quality gasoline by processing wax oil raw materials through catalyst gradation technology, and producing the largest amount of high-quality, high-quality, low-condensation oil and other liquid phase products by-product. 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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