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Fuel oil deep-desulfurization method based on organic rhenium catalyst

A catalyst and fuel oil technology, applied in the petroleum industry, refined hydrocarbon oil, etc., can solve problems such as secondary pollution, high operating costs, and large equipment investment, and achieve obvious effects, simple processes, and high value-added utilization

Active Publication Date: 2014-07-30
ZHUZHOU KAITE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional hydrodesulfurization methods have problems such as large equipment investment, high operating costs, and easy to cause secondary pollution.

Method used

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  • Fuel oil deep-desulfurization method based on organic rhenium catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: commercially available 93# gasoline desulfurization

[0013] 1) Preparation of the fixed bed: mix methyl rhenium trioxide and white clay uniformly at a mass ratio of 1:5, then add molten sucrose in an equal proportion (total weight of the mixture of methyl rhenium trioxide and white clay), stir evenly, and Under certain conditions, apply it on the fixed bed mesopores, wash it several times with chloroform after it hardens, put it in a furnace and sinter at 300 ° C for 3 hours, cool down, and place the fixed bed coated with organic rhenium catalyst on the jacket of the reactor in the inner tube.

[0014] 2) Put the gasoline into the storage tank. 3 The flow rate per hour is injected into the jacketed inner tube of the reactor, flows through the fixed bed, controls the temperature of the reactor at 20°C, collects the outflowing oil into the finished product tank, and completes the desulfurization of gasoline. The obtained product is tested, and the sulfur c...

Embodiment 2

[0015] Embodiment 2: Desulfurization of commercially available 0# diesel oil

[0016] 1) Preparation of the fixed bed: mix methyl rhenium trioxide and white clay uniformly at a mass ratio of 1:3, then add molten sucrose in equal proportions, stir evenly, and apply it on the mesoporous surface of the fixed bed under the condition of ultrasonic resonance. After hardening, it was washed several times with chloroform, put into a furnace for sintering at 300°C for 3 hours, cooled, and the fixed bed was put into a jacketed reactor.

[0017] 2) Put the diesel oil into the storage tank, and after the oil product has stood still, under normal pressure, put the diesel oil at 50m 3 The flow rate per hour is injected into the jacketed inner tube of the reactor, flows through the fixed bed, controls the temperature of the reactor at 65°C, collects the outflowing oil into the finished product tank, and completes the desulfurization of diesel oil. The obtained product is tested and the sulfu...

Embodiment 3

[0018] Example 3: Gasoline desulfurization of a petrochemical company

[0019] 1) Preparation of the fixed bed: mix methyl rhenium trioxide and white clay evenly at a mass ratio of 1:2, then add molten sucrose in equal proportions, stir evenly, and apply it on the mesoporous surface of the fixed bed under the condition of ultrasonic resonance. After hardening, it was washed several times with chloroform, put into a furnace and sintered at 300°C for 3 hours, cooled, and the fixed bed coated with organic rhenium catalyst was placed in the jacketed inner tube of the reactor.

[0020] 2) Put the oil into the storage tank, and after the oil has stood still, put the oil under normal pressure at 20m 3 The flow rate per hour is injected into the jacketed inner tube of the reactor, flows through the fixed bed, controls the temperature of the reactor at 80°C, collects the outflowing oil into the finished product tank, and completes the desulfurization of gasoline. The obtained product i...

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Abstract

The invention relates to a fuel oil deep-desulfurization method based on an organic rhenium catalyst. The technical scheme adopted by the invention is as follows: the method comprises the steps of synthesizing methyl rhenium trioxide, mixing methyl rhenium trioxide and argil according to the mixing ratio of 20-50%, adding an equal proportion of molten cane sugar, and coating meso pores of a fixed bed under the condition of ultrasonic resonance; after hardening, repeatedly washing with chloroform, then, placing in a furnace, and sintering the organic rhenium catalyst at the high temperature of 300 DEG C; adding gasoline or diesel oil into a storage tank, injecting the oil product into a reactor at the flow velocity of 10-100m<3>h after the oil product is stable through standing, controlling the temperature of the reactor to 20-80 DEG C, and collecting the oil product into a finished product tank, thereby completing the desulfurization of fuel oil. By adopting the method disclosed by the invention, the sulfur content of the oil product can be remarkably lowered.

Description

technical field [0001] The invention belongs to the field of energy and chemical industry, and in particular relates to a desulfurization technology of an organic rhenium catalyst. Background technique [0002] The SOx produced by the combustion of sulfur compounds in gasoline, diesel and other fuel oils is one of the main air pollutants. The continuous deterioration of crude oil quality (sulphur content is getting higher and higher) makes this problem more prominent, so looking for new high-efficiency The new technology of fuel oil desulfurization has always been a common concern of industry and academia. The smog weather that frequently occurs in various parts of our country recently has deeply disturbed everyone's daily life, and a large part of its causes is due to various products after the combustion of sulfur in fuel oil. [0003] The standards for sulfur content in fuel oil are becoming more and more stringent in various countries. In Europe, the sulfur content in f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G29/00
Inventor 扶元初
Owner ZHUZHOU KAITE IND
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