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Preparation method for kerosene with low odor

A low-odor, kerosene-based technology, applied in the direction of multi-stage series refining process, can solve the problem of high cycloalkane content, achieve high product yield, no environmental pollution, and low odor

Pending Publication Date: 2018-11-30
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that there is a disadvantage in the production of deodorized kerosene by hydrogenation, that is, the product has a high content of naphthenes

Method used

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  • Preparation method for kerosene with low odor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Select the content of aromatics as 11%, the content of naphthenes as 8%, and the content of sulfur as 12 mg·kg -1 , bromine index is 160mgBr (100g) -1 refined kerosene as raw material. Add 1000ml refined kerosene raw material and 1000ml sulfolane into the three-necked bottle, start the stirrer to stir, and open the heating jacket at the same time, raise the temperature of the material in the three-necked bottle to 40°C, continue stirring for 15 minutes after the temperature reaches, and then put all the materials in the three-necked bottle Put it into a separatory funnel and let it stand at room temperature for 1 hour. The material in the separatory funnel is divided into two layers, the upper layer is the raffinate, and the lower layer is the extract. Repack the upper layer raffinate into the three-necked bottle, add 1000ml of new sulfolane, repeat the above operation, and complete the second extraction and separation operation. After completing 7 times of extraction...

Embodiment 2

[0040] Select the content of aromatics as 11%, the content of naphthenes as 8%, and the content of sulfur as 12 mg·kg -1 , bromine index is 160mgBr (100g) -1 refined kerosene as raw material. Add 1000ml refined kerosene raw material and 1000ml sulfolane into the three-necked bottle, start the stirrer to stir, and open the heating jacket at the same time, raise the temperature of the material in the three-necked bottle to 40°C, continue stirring for 15 minutes after the temperature reaches, and then put all the materials in the three-necked bottle Put it into a separatory funnel and let it stand at room temperature for 1 hour. The material in the separatory funnel is divided into two layers, the upper layer is the raffinate, and the lower layer is the extract. Repack the upper layer raffinate into the three-necked bottle, add 1000ml of new sulfolane, repeat the above operation, and complete the second extraction and separation operation. After completing 8 times of extraction...

Embodiment 3

[0043] Select the content of aromatics as 11%, the content of naphthenes as 8%, and the content of sulfur as 12 mg·kg -1 , bromine index is 160mgBr (100g) -1 refined kerosene as raw material. Add 1000ml of refined kerosene raw materials and 2000ml of sulfolane into the three-necked bottle, start the stirrer to stir, and open the heating jacket at the same time, raise the temperature of the material in the three-necked bottle to 40°C, continue stirring for 15 minutes after the temperature reaches, and then put all the materials in the three-necked bottle Put it into a separatory funnel and let it stand at room temperature for 1 hour. The material in the separatory funnel is divided into two layers, the upper layer is the raffinate, and the lower layer is the extract. Repack the upper layer raffinate into the three-necked bottle, add 2000ml of new sulfolane, repeat the above operation, and complete the second extraction and separation operation. After completing 5 times of ext...

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Abstract

The invention discloses a preparation method for kerosene with low odor. The preparation method comprises the following steps: (1) extraction and separation: extracting the kerosene with an extractingsolvent, carrying out standing for layering, and carrying out separation so as to obtain an extract and a raffinate; and (2) back extraction: subjecting the raffinate to back extraction operation 1 with a back extracting agent for extracting the extracting solvent remained in the raffinate so as to obtain the kerosene with low odor. The deodorized kerosene prepared by using the method provided bythe invention has low cycloalkane content and low odor.

Description

technical field [0001] The invention relates to a method for preparing kerosene, in particular to a method for preparing low-odor kerosene. Background technique [0002] Deodorized kerosene is a solvent oil with a wide range of uses. It is used in the production of daily chemicals in many occasions, so the requirements for its odor are very strict. The current production method of deodorized kerosene is mainly hydrogenation, that is, hydrocracking kerosene Or straight-run kerosene is used as raw material, and the high-pressure hydrogenation process is used to saturate the aromatics in it, and at the same time remove impurities such as sulfur and nitrogen to obtain deodorized kerosene products. [0003] In the current production, the deodorization of kerosene mainly focuses on the removal of aromatics and desulfurization and denitrification, and does not pay attention to other factors that affect the smell of kerosene. Found by the inventor's research, cycloalkane is an impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/06
CPCC10G53/06
Inventor 廖定满李烨李楚佳谭伟红卢振旭孙望平谢正良梁胡梁红梅叶宁涟
Owner CHINA PETROLEUM & CHEM CORP