Process for lowering sulfur content in gasoline through hydrogen supply agent

A technology of hydrogen-donating agent and gasoline, which is applied in the field of reducing the sulfur content of gasoline and using the hydrogen-donating agent to reduce the sulfur content of gasoline. The effect of the reaction

Inactive Publication Date: 2005-07-06
LUOYANG PETROCHEMICAL ENG CORP SINOPEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The present invention aims at the disadvantages of low desulfurization degree and high reaction temperature in the prior art, and proposes a method for reducing the sulfur content of gasoline by using a hydrogen donor

Method used

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  • Process for lowering sulfur content in gasoline through hydrogen supply agent
  • Process for lowering sulfur content in gasoline through hydrogen supply agent
  • Process for lowering sulfur content in gasoline through hydrogen supply agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This example illustrates: using a fixed bed reactor, using decahydronaphthalene as a hydrogen donor, and using ZnO / Al 2 o 3 As a catalyst, reduce the sulfur content of gasoline.

[0033] In a small fixed-bed reactor with a catalyst loading of 10 grams, decahydronaphthalene is used as a hydrogen donor, and ZnO / Al 2 o 3 As a catalyst, the raw material oil used in the test is FCC gasoline produced by the catalytic cracking unit of Sinopec Luoyang Branch, and its properties are shown in Table 1. The main operating conditions are shown in Table 2. The test procedure is as follows: add 3% decahydronaphthalene to the catalytic cracking gasoline, then contact and react with the catalyst in the fixed bed reactor, and collect the obtained cracked oil gas after three-stage condensation and cooling. Gas and liquid products; cracked gas analyzed by gas chromatography for its composition, C 5 The above components are included in the gasoline fraction; the liquid product is measur...

Embodiment 2

[0035] Same as Example 1, except that no hydrogen donor is added to the FCC gasoline, and the results are listed in Table 2.

[0036] Comparing the two groups of data in Table 2, it can be seen that after the present invention is adopted, the desulfurization rate of gasoline rises from 32.9% to 50.3%. At the same time, the retention rate of gasoline is increased, and the yield of dry gas and liquefied gas is decreased.

Embodiment 3

[0038] This embodiment illustrates: adopt lower reaction temperature, the retention rate of gasoline improves, can not produce gas, and shortcoming is that the octane number of gasoline descends.

[0039] Implementation method is the same as Example 1 and Example 2, except that the reaction temperature is reduced from 380°C to 200°C. The results are listed in Table 3.

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Abstract

The invention discloses a process for lowering sulfur content in gasoline through hydrogen supply agent, which comprises mixing raw material petroleum, hydrogen supply agent and catalyst in reactor at the presence of water vapor, charging the reaction oil gas to the subsequent separation system, and circulating the catalyst through recovery, wherein the hydrogen supply agent employs cycloalkyl aromatic hydrocarbons containing 1-3 naphthene. The invention can be applied to substantially reduce the sulfur content in the gasoline.

Description

technical field [0001] The invention relates to a method for refining hydrocarbon oil, in particular to a method for reducing the sulfur content of gasoline, more specifically, a method for reducing the sulfur content of gasoline by using a hydrogen-donating agent. Background technique [0002] In order to control the emission of pollutants from automobile exhaust, the world's major developed countries have imposed strict restrictions on the sulfur content of motor gasoline. The US Environmental Protection Agency promulgated the fuel II standard on December 21, 1999. The average sulfur content of gasoline in 2004 was 120 μg / g, and the average sulfur content in 2006 was reduced to 30 μg / g; The average sulfur content in the transition period from July 1, 2002 to December 31, 2004 was 150μg / g, and the average sulfur content in 2005 was reduced to 30μg / g; EU countries will produce low-sulfur sulfur content of 50μg / g in 2005 Gasoline: Germany adopts tax incentive policy and stri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/28
Inventor 孟凡东张洁郑红霞郭荣群岳晓伟
Owner LUOYANG PETROCHEMICAL ENG CORP SINOPEC
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