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[Chemical Knowledge]：Production and manufacturing method and process flow of isobutanol

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of manufacturing methods
of isobutanol Isobutanol is an important organic chemical raw material, which is widely used in solvents, plasticizers, cleaning agents, inks, coatings and other fields. This article will introduce the manufacturing method of isobutanol, including raw materials, process flow, operating conditions, three waste treatment and safe production.

1. Feedstock

The feedstock for the manufacture of isobutanol is primarily propylene, synthesis gas and hydrogen. Among them, propylene is the main raw material, and synthesis gas and hydrogen are auxiliary raw materials.

2. Process
The manufacturing process of
isobutanol mainly includes the following steps:

1. Propylene carbonyl synthesis: After propylene, synthesis gas and hydrogen are mixed, they enter the carbonyl synthesis reactor. Under the action of a catalyst, the carbonyl synthesis reaction is carried out to generate propionaldehyde.
2. Propionaldehyde hydrogenation: Propionaldehyde is introduced into a hydrogenation reactor, and under the action of a catalyst, a hydrogenation reaction is carried out to generate isobutanol.
3. Product refining: Isobutanol is introduced into the refining tower, and pure isobutanol product is separated by distillation.

3. Operating Conditions The operating conditions for
the production of
isobutanol are as follows:

1. Oxo synthesis of propylene Reaction temperature: 150-200 ° C., pressure: 2.0-3.0MPa.
2. Propionaldehyde hydrogenation reaction temperature: 120-180°C, pressure: 2.0-3.0MPa.
3. Refining tower operating temperature: 70-100 ℃, pressure: atmospheric pressure.

4. three wastes treatment

the manufacturing process of isobutanol will produce some waste gas, waste water and solid waste, which need to be properly treated to ensure environmental safety and normal operation of production. The specific three waste treatment methods are as follows:

1. waste gas: the waste gas produced by the reactor and the refining tower is introduced into the incinerator for incineration treatment to ensure that the harmful substances in the waste gas are effectively removed.
2. Wastewater: The wastewater generated in the production process is introduced into the sewage treatment station for treatment and discharged after meeting the environmental protection standards.
3. Solid waste: The solid waste generated in the production process is classified, recycled and treated to avoid pollution to the environment.

5. safety production

the manufacturing process of isobutanol involves some dangerous substances and high temperature and high pressure, so it is necessary to strictly abide by the safety production specifications to ensure the smooth progress of the production process. The specific safety measures are as follows:

1. Strictly control the reaction temperature and pressure to avoid the occurrence of dangerous situations such as overtemperature and overpressure.
2. Regularly inspect and maintain the production equipment to ensure the normal operation of the equipment and avoid safety accidents caused by equipment failure.
3. Strengthen on-site safety management, prohibit dangerous behaviors such as smoking and open fire, and ensure the safety of the production site.

In short, the manufacturing method of isobutanol involves many links and factors, and it is necessary to strictly control the quality of raw materials, optimize the process flow, comply with the operating conditions, strengthen the three waste treatment and safety production management, etc., to ensure the quality of the product And the safe and smooth production.

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