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A method for producing gasoline 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, catalyst process improvement, long catalyst operation period, etc., to achieve octane number The effect of high and low sulfur content

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 by a catalyst grading technology
  • A method for producing gasoline by a catalyst grading technology
  • A method for producing gasoline by a catalyst grading technology

Examples

Experimental program
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Effect test

Embodiment 1

[0038] use figure 1 In the combined process flow shown, straight-run wax oil is selected as the conversion raw material for hydrogenation to produce gasoline, and a certain degree of refining (nitrogen content 100ppm) and conversion depth (gasoline yield 30%) is controlled. The catalysts used in the examples are commercial catalyst FF-36 hydrotreating catalyst, special hydroconversion catalyst A, B and C single-ring aromatic hydrocarbon retaining hydroconversion catalyst.

[0039] 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

[0041] use figure 1 In the combined process flow shown, straight-run wax oil is selected as the conversion 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 commercial catalyst FF-36 hydrotreating catalyst, special hydroconversion catalyst A, B and C single-ring aromatic hydrocarbon retaining hydroconversion 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 3

[0044] use figure 1 In the combined process flow shown, straight-run wax oil is selected as the conversion raw material for hydrogenation to produce gasoline, and certain refining (nitrogen content 200ppm) and conversion depth (gasoline yield about 20%) are controlled. The catalysts used in the examples are commercial catalyst FF-36 hydrotreating catalyst, special hydroconversion catalyst A, B and C single-ring aromatic hydrocarbon retaining hydroconversion 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.

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Abstract

The invention discloses a method for producing gasoline by a catalyst grading technology. The method comprises the following steps: carrying out restricted hydrogenation saturation on a conventional heavy raw material; then performing hydro-conversion to produce high-quality gasoline or blend components under certain limited process conditions and a specific catalyst grading condition; and subjecting a byproduct liquid phase component to a cracking reaction to produce other fuel oil products with high quality or high-quality ethylene cracking raw materials. The method disclosed by the invention can be used for producing a target product to the maximum extent on the basis of selective processing of the heavy fractions.

Description

technical field [0001] The invention relates to a processing method for wax oil components, in particular to a production method for processing wax oil raw materials to produce high-quality gasoline by catalyst gradation technology, and by-product high-quality liquid phase products. 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-mentioned gasoline components are blended, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/14C10G45/54
CPCC10G45/54C10G67/14C10G2300/1037C10G2400/02
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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