Method for producing a hydrocarbon cut with a high octane level and low sulphur content

A technology with high octane number and low sulfur content, which is applied in the fields of hydrocarbon oil treatment products, processing hydrocarbon oil, liquid carbon-containing fuel, etc., and can solve problems such as the decline of octane number

Active Publication Date: 2010-12-01
INST FR DU PETROLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the main disadvantage of this method is tha

Method used

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  • Method for producing a hydrocarbon cut with a high octane level and low sulphur content
  • Method for producing a hydrocarbon cut with a high octane level and low sulphur content
  • Method for producing a hydrocarbon cut with a high octane level and low sulphur content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] Example 1 ( figure 1 )

[0125] a) Obtain desulfurization catalytic cracking gasoline

[0126] The starting material is catalytically cracked gasoline to produce at least a similar high-quality gasoline and a raffinate that can be supplied to a steam-cracking unit.

[0127] FCC gasoline has the following characteristics:

[0128] ASTM D86 Distillation: Starting point: 35°C

[0129] End point: 220°C

[0130] Olefin content: 33.6% by weight

[0131] Aromatic compound content: 34.6% by weight

[0132] RON=93.00

[0133] Sulfur = 3,278ppm

[0134] The starting material (1) is selectively desulfurized on a Co / Mo catalyst (HR 806 type) under the following conditions: In the hydrodesulfurization unit (C), temperature: 260°C, P=2MPa, VVH=4h -1 , H 2 The / HC ratio was 200 l / l.

[0135] b) Extraction of desulfurized gasoline

[0136] The effluent obtained in the hydrodesulphurization step is sent via line (4) to unit (D) for the extraction of sulfolane ar...

Embodiment 2

[0145] Example 2 ( figure 2 -selective mode)

[0146] a) Obtain a kind of desulfurization catalytic cracking gasoline

[0147] The starting material is catalytically cracked gasoline, from which it is necessary to recover the raffinate for sending to steam cracking while improving the quality of the gasoline produced.

[0148] FCC gasoline flowing through line (1) has the following properties:

[0149] ASTM D86 Distillation: Starting point: 35°C

[0150] End point: 140°C

[0151] Olefin content: 34.5% by weight

[0152] Aromatic compound content: 19.2% by weight

[0153] RON=91.40

[0154] Sulfur = 1,112ppm

[0155] It was processed over a Ni-Mo selective hydrogenation catalyst (HR845).

[0156] Gasoline is processed under the following conditions:

[0157] Temperature: 160℃; Pressure: 2MPa; VVH=4h -1 , H 2 The / HC ratio was 5 l / l.

[0158] The effluent flowing through line (2) is then subjected to fractional distillation in a column (step B).

[0159...

Embodiment 3

[0169] Embodiment 3 ( figure 2 -non-selective mode)

[0170] a) Obtain a kind of desulfurization catalytic cracking gasoline

[0171] The starting material is catalytically cracked gasoline, from which it is necessary to recover the raffinate for sending to steam cracking while improving the quality of the gasoline produced.

[0172] FCC gasoline flowing through line (1) has the following properties:

[0173] ASTMD86 Distillation: Starting point: 35°C

[0174] End point: 140°C

[0175] Olefin content: 34.5% by weight

[0176] Aromatic content: 19.2% by weight

[0177] RON=91.40

[0178] Sulfur = 1,112ppm

[0179] It was processed over a Ni-Mo selective hydrogenation catalyst (HR845).

[0180] Gasoline is processed under the following conditions:

[0181] Temperature: 160℃; Pressure: 2MPa; VVH=4h -1 , H 2 The / HC ratio was 5 l / l.

[0182] The effluent (2) is then fractionally distilled (unit B). At the top, the fraction with a final desulfurization AS...

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Abstract

Process for the production of a hydrocarbon fraction with a high octane number and a low sulfur content from a hydrocarbon feedstock, comprising at least the following stages: A hydrodesulfurization stage of the hydrocarbon feedstock, At least one stage for extracting aromatic compounds on all or part of the effluent that is obtained from the hydrodesulfurization stage, whereby said extraction leads to a paraffin-enriched raffinate and an aromatic compound-enriched extract sent to a gasoline pool to improve its octane number. A portion of the paraffinic raffinate can be used in a mixture with the aromatic extract; another portion can be used as a petrochemistry base either for producing aromatic compounds or for producing olefins.

Description

technical field [0001] The present invention relates to the field of octane improvement of hydrocarbon fractions and further relates to a process for the production of high octane and low sulfur content hydrocarbon fractions which enables the upgrading of the entire fraction so that the fraction The total sulfur content of the fraction is reduced to very low levels while increasing the octane number of the fraction. Background technique [0002] Oil refining and petrochemicals are now subject to new restrictions. Virtually all countries are gradually adopting strict sulfur regulations: the target is to reach 5 to 10 ppm sulfur. The problem of reducing the sulfur content is essentially centered on the gasoline obtained by cracking the main sulfur-containing precursors in the gasoline pool, whether the cracking is catalytic (FCC: Fluid Catalytic Cracking according to the English terminology) or non-catalytic (coking, visbreaking, steam-cracking). Today, there are plans to m...

Claims

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Application Information

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IPC IPC(8): C10G67/04C10G69/00C10G67/00
CPCC10G45/32C10G2400/04C10G35/00C10G2400/02C10G2400/08C10G2300/1096C10G11/00C10G2300/202C10G67/02C10G9/36C10G2300/305C10G2300/44C10L1/06C10G9/00C10G69/04
Inventor Q·德布伊谢特J·弗雷康R·L·休金斯
Owner INST FR DU PETROLE
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