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[Chemical Knowledge]：Manufacturing method and process of industrial alcohol

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The manufacturing method
of industrial alcohol
1. Introduction

Industrial alcohol is an important chemical product widely used in chemical, pharmaceutical, energy and other fields. Its main component is ethanol. This article will introduce the manufacturing method of industrial alcohol, including raw material selection, process flow, equipment selection and so on.

2. raw material selection

industrial alcohol manufacturing raw materials are mainly starch raw materials, molasses raw materials and sulfite wood pulp waste liquid. Among them, starch raw materials such as corn, sorghum, potato, etc., are commonly used raw materials in China. After these raw materials are treated by fermentation, distillation and other processes, industrial alcohol with high ethanol content can be obtained.

3. process

industrial alcohol manufacturing process mainly includes the following steps:

1. raw material processing: the selected raw materials for crushing, pasting and other processing, making it easy to follow the fermentation process.
2. Fermentation: Under the action of yeast, the starch or sugar in the raw material is converted into ethanol and carbon dioxide.
3. Distillation: The fermentation broth is heated to the boiling point of ethanol to separate the ethanol vapor from the fermentation broth to obtain crude alcohol.
4. Distillation: The crude alcohol is distilled several times to separate impurities with different boiling points to obtain industrial alcohol with high purity.

4. equipment selection

In the manufacturing process of industrial alcohol, the following equipment is needed:

1. Crusher: used to crush the raw materials into a suitable fermentation size.
2. gelatinization pot: used to paste the crushed raw materials.
3. Fermentation tank: used for alcohol fermentation process, need to have heat preservation, ventilation and other functions.
4. Distillation column: used to distill the ethanol in the fermentation broth to obtain crude alcohol.
5. Distillation tower: used for distillation of crude alcohol to obtain high purity industrial alcohol.

5. precautions

In the manufacturing process of industrial alcohol, the following matters need to be paid attention to:

1. Control the temperature and pH value during the fermentation process to ensure the growth and fermentation effect of yeast.
2. In the process of distillation and rectification, it is necessary to control parameters such as temperature and pressure to ensure the quality and purity of the product.
3. Regular maintenance and maintenance of the equipment to ensure the normal operation and service life of the equipment.

6. Conclusion The manufacturing method of

industrial alcohol involves multiple process steps and equipment selection, which need to be selected and adjusted according to specific conditions. At the same time, in the manufacturing process, it is necessary to pay attention to the control of various parameters and indicators to ensure the quality and purity of the product. Through scientific and reasonable manufacturing process and equipment selection, high-quality industrial alcohol can be produced, which provides important raw material support for chemical, pharmaceutical, energy and other fields.

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