Method for adjusting neutrality of toluene

A toluene and neutral technology, applied in the field of adjusting toluene neutrality, can solve the problems of not being able to introduce sulfur and nitrogen, and not being able to adapt to the needs of gasoline deployment in petrochemical systems, and achieve the effect of broadening sales channels

Inactive Publication Date: 2017-03-29
ANGANG STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The toluene produced by using formylmorpholine as an extractant has a neutral test result of alkaline, which cannot meet the needs of gasoline deployment in petrochemical systems. It is necessary to use technical means to neutralize the alkaline substances in toluene to make it neutral and meet the requirements. Petrochemical users need to deploy gasoline, and impurity elements such as sulfur and nitrogen cannot be introduced during the neutralization process

Method used

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Embodiment

[0019] Regulate the method for toluene neutrality, take glacial acetic acid as neutralizing agent, toluene and glacial acetic acid proportioning 3000:1 by weight; 45 tons of toluene to be neutralized, glacial acetic acid 15kg, the glacial acetic acid of 15kg is equally divided into 3 parts, Add 1 part of glacial acetic acid when the toluene is loaded into the tank car, add 1 part of glacial acetic acid when the toluene is half of the volume of the tank car, and add the last part of glacial acetic acid when there is 1 ton of toluene left in the tank car. The purpose of neutralizing alkaline substances in toluene is achieved.

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Abstract

The invention relates to a method for adjusting the neutrality of toluene. Acetate acid gracial is adopted as a neutralizer, and a weight part ratio of the toluene to the acetate acid gracial is (2000-3500):1. The method concretely comprises the following steps: 1, uniformly dividing the acetate acid gracial into 3 parts; and 2, adding one part of the acetate acid gracial when a tank car is filled with the toluene, adding one part of the acetate acid gracial when the volume of the toluene is half of the volume of the tank car, and adding the remaining one part of the acetate acid gracial when the volume of the toluene in the tank car is 9 / 10 of the volume of the tank car. The method has the following advantages: the acetate acid gracial used as the neutralizer is added to alkaline toluene and reacts with alkaline substances in the toluene to form neutral toluene, and reaction products are carbon dioxide and water, so other substances influencing the quality index of the toluene are not introduced, hydrogenated toluene meets needs of petrochemical gasoline blending, and the neutral toluene are qualified in client lab test neutral experiments and meets clients' needs, thereby widening the business division's marketing channel of toluene.

Description

technical field [0001] The invention relates to a method for adjusting the neutrality of toluene. Background technique [0002] The toluene produced by using formylmorpholine as an extractant has a neutral test result of alkaline, which cannot meet the needs of gasoline deployment in petrochemical systems. It is necessary to use technical means to neutralize the alkaline substances in toluene to make it neutral and meet the requirements. Petrochemical users need to deploy gasoline, and impurity elements such as sulfur and nitrogen cannot be introduced during the neutralization process. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the purpose of this invention is to provide a method for regulating the neutrality of toluene, which can neutralize the alkaline medium in the toluene produced by using formylmorpholine as the extractant, and can not introduce the toluene that affects the quality index of toluene. Other substances, so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C7/17C07C15/06
Inventor 张云朝薛占强杨峰张德敬赵鑫臧旭王风霞
Owner ANGANG STEEL CO LTD
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