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A method for producing clean gasoline from catalytic cracking gasoline

A catalytic cracking gasoline, clean technology, applied in the direction of hydrocarbon oil treatment products, hydrocarbon oil treatment, petroleum industry, etc., can solve the problem of large catalyst difference in gasoline upgrading process, etc.

Active Publication Date: 2020-07-07
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the different composition and content of specific gasoline raw materials, as well as different gasoline product standards, the gasoline upgrading process and catalysts used are also quite different.

Method used

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  • A method for producing clean gasoline from catalytic cracking gasoline
  • A method for producing clean gasoline from catalytic cracking gasoline
  • A method for producing clean gasoline from catalytic cracking gasoline

Examples

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Comparison scheme
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Embodiment Construction

[0052] The present invention is further described in detail by examples below, but these examples should not be considered as limiting the present invention. The raw material reagents used in the present invention are all commercially available products.

[0053] 1. First prepare the pre-hydrogenation catalyst

[0054] (1) Preparation of prehydrogenation catalyst 1

[0055] 1. Preparation of tungsten-doped lanthanum ferrite with micro-mesoporous

[0056] Under stirring conditions, 2.2mol La(NO 3 ) 3 Dissolve in 100mL water, add citric acid and stir to dissolve; then add 4.2mol Fe(NO 3 ) 3 , and then add 160g of sodium polyacrylate, then add an aqueous solution containing 10g of ammonium metatungstate, continue stirring for 30min, and obtain micro-mesoporous tungsten-doped lanthanum ferrite through drying, roasting and grinding.

[0057] 2. Preparation of alumina carrier

[0058] Add citric acid to 2.2g of micro-mesoporous tungsten-doped lanthanum ferrite for later use, ...

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Abstract

The invention relates to a method for producing clean gasoline from catalytic gasoline. The method comprises the following steps: under the action of a pre-hydrogenation catalyst, carrying out a thioletherification reaction and a double-bond isomerism reaction on catalytic gasoline in a pre-hydrogenation reactor; under the action of a hydrogenation desulfuration-isomerism catalyst, carrying out selective hydrodesulfurization on a pre-hydrogenation reaction effluent, wherein straight-chain olefin isomerism is single branched-chain olefin or single branched-chain alkane; further carrying out adouble-branched-chain isomerism reaction on a reaction effluent, thereby obtaining clean gasoline which is low in olefin content, super lo win sulfur content and high in octane rate.

Description

technical field [0001] The invention relates to a method for producing clean gasoline from catalytic cracking gasoline. Background technique [0002] FCC gasoline is a mixture composed of C4-C12 hydrocarbons and trace amounts of sulfides, oxides and metal arsenides. According to the differences in crude oil properties and processing routes of various refineries, FCC gasoline is composed of 18-55v% olefins , 12-20v% mixture of aromatics and alkanes, the octane number characteristics of each component are aromatics > olefins ≈ isoparaffins > alkanes. In my country, FCC gasoline with high sulfur content, high olefin content and low octane number accounts for about 70%, while the proportion of alkylated oil, isomerized oil and reformed oil with low sulfur content, low olefin content and high octane number This makes the cleanliness of FCC gasoline in my country need to carry the triple mission goals of desulfurization, olefin reduction and octane maintenance. [0003] CN2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02
CPCC10G67/02C10G2300/1037C10G2300/202C10G2300/70C10G2400/02
Inventor 王廷海鲍晓军岳源源王学丽刘杰袁珮朱海波白正帅
Owner FUZHOU UNIV
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