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Method for desulfurizing and reducing olefine for gasoline

A gasoline and olefin technology, applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., can solve the problem of no proposed treatment method, and achieve the effect of small loss of octane number

Active Publication Date: 2006-06-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The first paragraph of the patent only carries out the isomerization reaction of olefins, and does not propose treatment methods for other impurities such as sulfur

Method used

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  • Method for desulfurizing and reducing olefine for gasoline

Examples

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Embodiment 1

[0029] The raw material used in this embodiment is the same as the raw material A used in the comparative example. Raw material A is contacted with RIDOS-1 and RSDS-1 catalysts in sequence to undergo hydroisomerization and selective hydrodesulfurization respectively. The process conditions and product properties are shown in Table 2. It can be seen from Table 2 that the production of high-quality gasoline products with sulfur and olefin content meeting the national standard GB 17930-1999, when the olefin content in the gasoline product is 30.1v%, the loss of antiknock index is only 1.3 units.

Embodiment 2

[0031] The raw material B used in this embodiment is FCC gasoline, and its properties are shown in Table 1. Raw material B is contacted with RIDOS-1 and RSDS-1 catalysts in sequence to undergo hydroisomerization and selective hydrodesulfurization respectively. The process conditions and product properties are shown in Table 2. It can be seen from Table 2 that high-quality gasoline products with sulfur and olefin content meeting the national standard GB 17930-1999 were produced. The olefin content of gasoline decreased from 46.4v% to 34.9v%, and the antiknock index loss was only 1.5 units.

[0032] raw material A

[0033] comparative example

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Abstract

The process of desulifurizing gasoline and reducing olefin content includes contacting gasoline material with hydrogen and hydrogen isomerization catalyst for hydrogen desulfurizing, saturating olefin, isomerizing olefin and cracking olefin; contacting the reaction effluent with selectively hydrogen desulfurizing catalyst; and separating hydrogen desulfurizing produced oil to obtain light olefin and gasoline fractions; and circulating the hydrogen-rich gas. The said process can produce high quality gasoline with low sulfur and olefin content and lowest octane number loss.

Description

technical field [0001] The invention belongs to a method for refining hydrocarbon oil in the presence of hydrogen, more specifically, it belongs to a method for hydrodesulfurizing and reducing olefins of a gasoline fraction. Background technique [0002] With the continuous enhancement of people's awareness of environmental protection, the emission of toxic and harmful substances in automobile exhaust will be strictly controlled, so the quality requirements for oil products used as engine fuels are becoming more and more stringent. For this reason, various countries have put forward extremely strict limit indicators for motor gasoline specifications such as oxygen content, vapor pressure, benzene content, total aromatics content, boiling point, olefin content and sulfur content, in order to reduce the emission of harmful substances. Comparing with the new standard of motor gasoline in my country, it can be found that the main problem of gasoline quality in my country is the ...

Claims

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Application Information

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IPC IPC(8): C10G65/00
Inventor 习远兵胡云剑屈锦华戴立顺李明丰石亚华聂红卫剑
Owner CHINA PETROLEUM & CHEM CORP
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