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Method for reducing organic chloride content of hydrocarbon fuel oil

A technology of organochlorine and fuel oil, applied in the field of chemical industry, can solve problems such as environmental pollution, corrosion of equipment, catalyst poisoning, etc., and achieve the effects of reducing investment costs, easy enlargement, and simple operation process

Inactive Publication Date: 2014-01-01
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009]Technical problem to be solved: In view of the high organic chlorine content of plastic cracking oil and the increasing organic chlorine content of crude oil extracted, in order to solve these organic chlorine The existence of a large number of compounds will corrode equipment, cause catalyst poisoning, and pollute the environment. The invention provides a method for reducing the organic chlorine content of hydrocarbon fuels. The process is simple and the dechlorination effect is good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] It was determined that the organic chlorine content of the raw hydrocarbon fuel was 6429ppm. By mass ratio m 烃类燃油 :m 脱氯剂 :m 溶剂 :m 助剂 =100:5:30:1 ratio, weigh 50g of hydrocarbon fuel, 2.5g of dechlorination agent, 15g of solvent and 0.5g of auxiliary agent (dechlorination agent is sodium hydroxide, anhydrous sodium acetate, urea, sodium silicate , zinc powder, sodium methoxide, the solvent is any one of DMF and distilled water, and the auxiliary agent is CTAB), and then add it to the stirring reaction kettle with a condensing reflux device at the same time. Heating and stirring the reaction, and reacting at the set temperature for a certain period of time, then carry out atmospheric distillation to separate and purify, and the obtained fraction is the product after dechlorination, and its organic chlorine content is measured. The specific reaction parameter settings and results are shown in Table 1:

[0030] Table 1

[0031] Dechlorination agent solvent...

Embodiment 2

[0035] It was determined that the organic chlorine content of the raw hydrocarbon fuel was 6429ppm. By mass ratio m 烃类燃油 :m 脱氯剂 :m 溶剂 :m 助剂 =100:4:40:0 ratio, weigh 50g of hydrocarbon fuel, 2.0g of dechlorination agent and 20g of solvent (dechlorination agent is sodium methoxide, solvent is any one of DMSO, DMF, THF), and then, At the same time, it is added to the stirred reactor with a condensing reflux device. Heat and stir for reaction, and react at 110°C for 6 hours, then carry out atmospheric distillation to separate and purify, the obtained fraction is the product after dechlorination, and its organic chlorine content is measured. The results are shown in Table 2.

[0036] Table 2

[0037] Dechlorination agent solvent Product chlorine content (ppm) Sodium methoxide DMF 43 Sodium methoxide DMSO 24 Sodium methoxide THF 2119

[0038] It can be seen from Table 2 that when sodium methoxide is used as the dechlorination agent, a...

Embodiment 3

[0041] It was determined that the organic chlorine content of the raw hydrocarbon fuel was 6429ppm. By mass ratio m 烃类燃油 :m 脱氯剂 :m 溶剂 :m 助剂=100:2:20:1 ratio, weigh 50g of hydrocarbon fuel, 1.0g of sodium methoxide, 10g of DMSO and 0.5g of CTAB, and then add them into a stirred reactor with a condensing reflux device at the same time. Heated and stirred for reaction, and reacted at 110°C for 6 hours, then carried out atmospheric distillation for separation and purification, and the obtained fraction was the product after dechlorination, and its organic chlorine content was determined to be 3992ppm.

[0042]

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Abstract

The invention discloses a method for reducing the organic chloride content of hydrocarbon fuel oil. The method comprises the following steps: step 1: carrying out dechlorination reaction; adding a dechlorinating agent and a resolvent into the hydrocarbon fuel oil according to a certain ratio; step 2: separating and purifying: performing atmospheric distillation on mixture after reaction and obtaining a fraction through collecting, namely a product with low chlorine content. Compared with the conventional antichlor, the antichlor used in the invention can effectively remove high-concentration organic chlorine compound in the hydrocarbon fuel oil. The reaction conditions are more moderate, and dechlorination reaction can be performed at a temperature below 110 DEG C, and can be achieved through common equipment. The operation process is simple. A stirring and heating device and a distillation separating device are mainly included, not only is the expansion easy, but also the investment cost is lowered to a greater degree. In addition, the raw material used in the invention adopts the hydrocarbon fuel oil not hydrochloric ether for replacement, so that the method provided by the invention is a representative for evaluation of the dechlorinating effect on the hydrocarbon fuel oil with higher organic chloride content.

Description

[0001] technical field [0002] The invention belongs to the field of chemistry and chemical engineering, and mainly relates to a method for reducing the organic chlorine content of hydrocarbon fuel oil through dechlorination treatment. [0003] Background technique [0004] All kinds of plastic products have brought great convenience to people's rich material life, but at the same time, the pollution of waste plastics to the environment is also very serious. Waste plastics can be oiled through pyrolysis technology, and then fuel can be obtained. Under the conditions of catalyst or high temperature, the polymer chains of waste plastic products will be broken to generate hydrocarbons with lower molecular weight, that is, plastic cracking oil. Plastic pyrolysis oil can be distilled to obtain distillate light oil with relatively low boiling point and heavy liquid oil at the bottom of the kettle, both of which are fuels for turning waste into treasure. When the polymer chains...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/02
Inventor 蒋剑春夏海虹徐俊明
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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