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Method for producing gasoline and diesel oil by catalyst grading technology

A catalyst and catalyst bed technology, applied in chemical instruments and methods, molecular sieve catalysts, physical/chemical process catalysts, etc., can solve the problems of catalyst process improvement, long catalyst operation period, single raw material selection range, etc.

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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  • Method for producing gasoline and diesel oil by catalyst grading technology
  • Method for producing gasoline and diesel oil by catalyst grading technology
  • Method for producing gasoline and diesel oil by catalyst grading technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] use figure 1 In the combined process flow shown, straight-run wax oil is selected as the raw material for hydrogenation to produce gasoline and diesel oil, and certain refining (nitrogen content 100ppm) and conversion depth (gasoline yield is about 10%) are controlled to a certain extent. The diesel yield in the hydrogenation upgrading process is It is 96wt%. The catalysts used in the examples are the commercial catalyst FF-36 hydrotreating catalyst, the special hydroconversion catalyst A, the commercial catalyst FC-18 hydrogenation upgrading catalyst and the C single-ring aromatic hydrocarbon retaining hydroconversion catalyst.

[0041] The properties of catalysts A 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

[0043]use figure 1 In the combined process shown, straight-run wax oil is selected as the raw material for hydrogenation to produce gasoline and diesel, and a certain refining (nitrogen content of 200ppm) and conversion depth (gasoline yield is about 10%) is controlled to a certain extent. It is 96wt%. The catalysts used in the examples are commercial catalyst FF-36 hydrotreating catalyst, special hydroconversion catalyst A, commercial catalyst FC-18 (hydrogenation upgrading catalyst) and single-ring aromatics retained hydroconversion catalyst C.

[0044] The properties of catalysts A 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

[0046] 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 is about 5%) are controlled to a certain extent. The diesel yield in the hydrogenation upgrading process is It is 96wt%. The catalysts used in the examples are the commercial catalyst FF-36 hydrotreating catalyst, the special hydroconversion catalyst A, the commercial catalyst FC-18 hydrogenation upgrading catalyst and the C single-ring aromatic hydrocarbon retaining hydroconversion catalyst.

[0047] The properties of catalysts A 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-yielding diesel oil by catalyst gradation technology. Conventional heavy raw materials are subjected to limited hydrofinishing, followed by hydroconversion and upgrading reactions to produce high-quality gasoline or blending components under certain process conditions and a graded catalyst system, and can produce the largest amount of diesel oil components. The invention converts the heavy distillate oil into high-quality gasoline and diesel oil to the greatest extent according to its composition characteristics, and provides an economical and feasible route for the processing of inferior raw materials and the production of gasoline.

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 the largest amount of high-quality high-quality diesel 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, and finall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02B01J29/16B01J35/10
CPCB01J29/166B01J35/1042B01J2229/18C10G67/02C10G2300/202C10G2300/305C10G2400/02C10G2400/04
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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