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Method for producing gasoline and base oil by a catalyst grading technology

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

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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  • Method for producing gasoline and base oil by a catalyst grading technology
  • Method for producing gasoline and base oil by a catalyst grading technology
  • Method for producing gasoline and base oil by a catalyst grading technology

Examples

Experimental program
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Effect test

Embodiment 1

[0041] use figure 1In the combined process flow shown, straight-run wax oil is selected as the conversion / cracking raw material for hydrogenation to produce gasoline, and certain refining (nitrogen content 100ppm) and conversion depth (gasoline yield 30%) are controlled to a certain extent, and the total product tail oil yield is 20wt %. 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-80 hydrocracking catalyst.

[0042] 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

[0044] use figure 1 In the combined process flow shown, straight-run wax oil is selected as the conversion / cracking raw material for hydrogenation to produce gasoline, and certain refining (nitrogen content 200ppm) and conversion depth (gasoline yield 30%) are controlled to a certain extent, and the total product tail oil yield is 20wt %. 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-80 hydrocracking catalyst.

[0045] 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

[0047] use figure 1 In the combined process flow shown, straight-run wax oil is selected as the conversion / cracking raw material for hydrogenation to produce gasoline, and certain refining (nitrogen content 200ppm) and conversion depth (gasoline yield 20%) are controlled to a certain extent, and the total product tail oil yield is 25wt %. 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-80 hydrocracking catalyst.

[0048] 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 base oil by a catalyst grading technology. The method comprises the following steps: a) under a hydrofining condition, mixing a heavy oil raw material with hydrogen, and allowing the mixture to flow through a reaction zone containing a hydrofining catalyst bed layer to perform a restrictive hydrofining reaction; b) allowing the reaction effluent obtained in the step a) to flow through a reaction zone containing a graded wax oil hydro-conversion catalyst bed layer to perform a hydro-conversion reaction under hydro-conversion process conditions; and allowing the reaction effluent to flow through a reaction zone containing a wax oil hydrocracking catalyst bed layer to perform a hydrocracking reaction under hydrocracking process conditions; and c) carrying out gas-liquid separation, fractionation and other processes on the reaction effluent obtained in the step b) to obtain converted gasoline, converted diesel oil and unconvertedoil. The method provided by the invention can convert heavy distillate oil into gasoline and base oil, and provides an economically feasible route for processing of inferior raw materials and production of gasoline and base oil.

Description

technical field [0001] The invention relates to a processing method for wax oil components, specifically a method for producing high-quality gasoline by processing wax oil raw materials through catalyst gradation technology, and producing high-quality high-quality lubricating oil base oil and 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, and finally, the above-m...

Claims

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Application Information

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IPC IPC(8): C10G67/02
CPCC10G67/02C10G2400/02C10G2400/10
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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