[Chemical Knowledge]：Production and manufacturing method and process of n-octanol

The manufacturing method
of octanol
1. Introduction

octanol is an important chemical production raw material, widely used in coatings, inks, cleaning agents, plastic plasticizers and other fields. With the continuous growth of market demand, the manufacturing method of n-octanol has become a hot research topic. This article will introduce the manufacturing method of n-octanol, including raw materials, process flow, reaction principle, equipment, operation steps, quality control, safety production and environmental protection requirements.

2. raw material

n-octanol manufacturing raw materials are mainly paraffin oil and hydrogen. Paraffin oil is a hydrocarbon, the main component is alkane, with a high number of carbon atoms. Hydrogen is used as a reducing agent for reducing unsaturated hydrocarbons such as olefins in paraffin oil.

3. Process
The manufacturing process of
n-octanol mainly includes the following steps:

1. Hydrotreatment of paraffin oil: paraffin oil is mixed with hydrogen and hydrogenated at high temperature and high pressure to reduce unsaturated hydrocarbons such as olefins in paraffin oil to saturated hydrocarbons.
2. Alcoholization reaction: The hydrotreated paraffin oil is mixed with synthesis gas (a mixture of hydrogen and carbon monoxide), and the alcoholization reaction is carried out under the action of a catalyst to generate n-octanol and water.
3. Separation and purification: The mixture after the alcoholization reaction was separated to obtain crude n-octanol and water. The crude n-octanol is then refined to remove impurities and obtain a pure n-octanol product.

4. Reaction Principle

The main reaction principles involved in the manufacturing process of n-octanol include hydrogenation reaction and alcoholization reaction. Hydrogenation reaction is under the action of high temperature, high pressure and catalyst, the unsaturated hydrocarbon in paraffin oil and hydrogen are added to produce saturated hydrocarbon. The alcoholization reaction is the reaction of hydrotreated paraffin oil with synthesis gas under the action of a catalyst to produce n-octanol and water.

5. Equipment The equipment to be used in the production process of

n-octanol includes a hydrogenation reactor, an alcoholization reactor, a separation tower, a refining tower, etc. Hydrogenation reactor and alcoholization reactor need to have high temperature and high pressure performance, and need to be equipped with catalyst adding system. The separation column and the refining column need to have the ability of efficient separation and refining to ensure the purity of the product.

6. operation steps

n-octanol manufacturing operation steps mainly include the following links:

1. Hydrotreating: paraffin oil and hydrogen are mixed according to a certain proportion, added into the hydrogenation reactor, and hydrogenation reaction is carried out at high temperature and high pressure.
2. Alcoholization reaction: the hydrotreated paraffin oil is mixed with the synthesis gas, added into the alcoholization reactor, and the alcoholization reaction is carried out under the action of the catalyst.
3. Separation and purification: The mixture after the alcoholization reaction is introduced into a separation column and subjected to a separation operation to obtain crude n-octanol and water. The crude n-octanol enters the refining tower for refining operation to obtain pure n-octanol product.

7. quality control

In the manufacturing process of n-octanol, it is necessary to strictly control the quality of the product to ensure that the product meets relevant standards. The main quality control indicators include n-octanol purity, color, acidity, moisture and so on. In order to ensure the quality of products, it is necessary to establish a perfect quality inspection system to monitor and adjust the key parameters in the production process in real time.

8. safety production and environmental protection requirements

n-octanol manufacturing process need to pay attention to safety production and environmental protection requirements. The production process should strictly comply with relevant laws and regulations to ensure the health of employees and production safety. At the same time, we should strengthen the treatment of waste water, waste gas and other pollutants to reduce the impact on the environment.

9. conclusion

n-octanol as an important raw material for chemical production, its manufacturing method involves the control of multiple links and process parameters. In order to ensure product quality and production safety, it is necessary to establish a sound quality inspection system and safety production management system. At the same time, strengthening environmental protection and reducing the impact on the environment is an important guarantee for the sustainable development of n-octanol manufacturing industry.