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Process for hydrodesulphurization and olefin reduction of gasoline

A process method, gasoline hydrogenation technology, applied in the petroleum industry, through selective hydrofining, refining hydrocarbon oil, etc., can solve problems such as limited desulfurization performance, reduced gasoline yield, and increased dry point of gasoline products. The effects of deep desulfurization of olefin content, reduction of olefin content, and stable operation

Active Publication Date: 2007-10-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its desulfurization performance is limited, and the dry point of gasoline products increases, that is, the yield of gasoline should be reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The raw material used in the present invention is full fraction FCC gasoline, wherein the olefin content and sulfur content are≯50v%,≯1800μg / g. The olefin content of the produced oil is less than 10(v)%, the sulfur content is less than 150 μg / g, and the antiknock index (R+M) / 2 loss is less than 1.0 unit.

[0026] The raw materials used are listed in Table 1. The first reaction zone uses the commercial selective hydrogenation catalyst SHT produced by Wenzhou Huahua Group Company. The second reaction zone uses gasoline upgrading catalyst FDO. The third reaction zone uses selective hydrodesulfurization catalyst FGH-11.

[0027] project

FCC gasoline original

Material 1

FCC gasoline original

Material 2

FCC gasoline original

Material 3

Distillation range, ℃

35～191

52～201

35～182

Composition by fluorescence method / v%

saturated hydrocarbon

35.1

28.9

32.1

Olefin

41...

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Abstract

The inventon provides a technical method to HDS for FCC petrol, which comprises: passing remove-dialkene reactor, cutting into light and weight constituents; taking the light constituent to react with gas modification catalyst, then mixing the modified light constituent with weight constituent to contact with selective desulphurization catalyst. Compared with prior art, this invention can process ungraded FCC into high-quality product with low sulfur and olefin content and high yield.

Description

technical field [0001] The invention relates to a process method for gasoline hydrodesulfurization and olefin reduction, in particular to a method for desulfurization and olefin reduction of low-quality gasoline such as full fraction FCC gasoline. Background technique [0002] At present, there are certain restrictions on the sulfur content and olefin content of gasoline products. Limiting gasoline sulfur and olefin content can effectively play the function of automobile exhaust processor, and is one of the most effective ways to reduce automobile exhaust emissions. The content of sulfur and olefins in secondary processed low-quality gasoline such as FCC gasoline is high, so reducing the sulfur content and olefin content of FCC gasoline and other gasoline is the key to solving the quality of FCC gasoline. [0003] FCC gasoline desulfurization and olefin reduction using the traditional hydrofining process will result in a large loss in the octane number of the product, 7 to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/34C10G45/12
Inventor 李扬段为宇刘继华赵乐平王震徐大海
Owner CHINA PETROLEUM & CHEM CORP
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