A light oil product desulfurizer based on supramolecular inclusion complexation and its application method

A light oil product and desulfurizer technology, which is applied in chemical instruments and methods, refined hydrocarbon oil, petroleum industry, etc., can solve the problem that light oil product desulfurization technology is difficult to meet the sulfur standard, and achieve good removal of sulfide Performance, ease of use, and easy-to-operate effects

Inactive Publication Date: 2018-08-21
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the existing light oil desulfurization technology is difficult to meet the increasingly stringent sulfur standards, and the purpose is to provide a light oil desulfurizer based on supramolecular inclusion and its use method

Method used

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  • A light oil product desulfurizer based on supramolecular inclusion complexation and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) beta-cyclodextrin is dissolved in the NaOH solution that mass concentration is 1%, and the quality of described beta-cyclodextrin is 0.1% of the NaOH solution quality, is heated under the condition of 20 ℃ and constantly stirs, makes The β-cyclodextrin dissolves;

[0034] (2) Mix FCC gasoline containing a certain concentration of sulfide with 1% NaOH solution containing 0.1% β-cyclodextrin according to a certain ratio of agent to oil;

[0035] Wherein the sulfide is n-butylmercaptan, and the sulfur concentration of the sulfide is 107 μg·g -1 , the agent-to-oil ratio is 1:5;

[0036] (3) Heating the mixed solution in step (2) at 20° C. and stirring continuously for 30 min, at this time, the removal rate of sulfide was 25.0%.

Embodiment 2

[0038] (1) beta-cyclodextrin is dissolved in the NaOH solution that mass concentration is 3%, and the quality of described beta-cyclodextrin is 0.3% of the NaOH solution quality, is heated under the condition of 20 ℃ and constantly stirs, makes The β-cyclodextrin dissolves;

[0039] (2) Mix FCC gasoline containing a certain concentration of sulfide with a 3% NaOH solution containing 0.3% β-cyclodextrin according to a certain ratio of agent to oil;

[0040] Wherein the sulfide is n-butylmercaptan, and the sulfur concentration of the sulfide is 107 μg·g -1 , the agent-to-oil ratio is 1:5;

[0041] (3) The mixed solution in the step (2) was heated at 20° C. and stirred continuously for 60 min, at which time the removal rate of sulfide was 58.6%.

Embodiment 3

[0043] (1) beta-cyclodextrin is dissolved in the NaOH solution that mass concentration is 3%, and the quality of described beta-cyclodextrin is 0.5% of the NaOH solution quality, is heated under 25 ℃ of conditions and constantly stirs, makes The β-cyclodextrin dissolves;

[0044] (2) Mix FCC gasoline containing a certain concentration of sulfide with a 3% NaOH solution containing 0.5% β-cyclodextrin according to a certain ratio of agent to oil;

[0045] Wherein the sulfide is thiophenol, and the sulfur concentration of the sulfide is 40 μg·g -1 , the agent-to-oil ratio is 1:5;

[0046] (3) The mixed solution in the step (2) was heated at 25° C. and stirred continuously for 30 min, at which time the removal rate of sulfide was 69.9%.

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Abstract

The invention discloses a light-weight oil desulfurizing agent based on a supra-molecular inclusion effect. The desulfurizing agent is composed of an active component beta-cyclodextrin or a derivative thereof and a NaOH solution, wherein the beta-cyclodextrin or the derivative thereof has a sustainable biomass source, can be circularly utilized for a plurality of times, can be rapidly degraded under a natural condition, and is environmentally friendly. The invention further discloses a method for taking the beta-cyclodextrin or the beta-cyclodextrin derivative and the NaOH solution as the desulfurizing agent to remove sulfides in light-weight oil.

Description

technical field [0001] The invention relates to a light oil product desulfurizer based on supramolecular inclusion complexation and a using method thereof, belonging to the field of petroleum processing. Background technique [0002] Sulfur in light oil products mainly exists in molecular forms such as mercaptans, thioethers, disulfides, thiophenes, benzothiophenes and their derivatives. As we all know, sulfide in petroleum not only deteriorates the quality of petroleum, but also has a serious corrosion effect on refinery equipment. Therefore, the desulfurization problem in the petroleum refining process has become a major technical research topic in the petrochemical industry. The organic sulfur-containing compounds in oil products are burned to generate SOx, which is the main source of acid rain, causing environmental pollution and damaging human health; SOx has a significant role in promoting the emission of NOx and particulate matter (PM) in automobile exhaust. It may ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30C10G25/00
Inventor 夏道宏段尊斌卜婷婷朱丽君周玉路项玉芝
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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