Methyl tertiary butyl ether (MTBE) is an important chemical, as an excellent gasoline additive and solvent, widely used in chemical, pharmaceutical, pesticide and other fields. In this article, we will introduce the manufacturing method of Methyl tertiary butyl ether in detail, including the reaction principle, process flow, equipment selection, operation points and so on.
I. Reaction principle
The manufacture of methyl tert-butyl ether is mainly realized through the reaction between methanol and isobutylene, which is an etherification reaction. The reaction equation is as follows:
CH3OH + CH3-C(CH3)2 → CH3O-C(CH3)3 + H2O
In this reaction, methanol and isobutene generate methyl tertiary butyl ether and water under the action of acidic catalyst.
II. Process flow
The production process of methyl tert-butyl ether mainly includes the steps of raw material pretreatment, etherification reaction, product separation and refining. The specific process is as follows:
1. Raw material pretreatment: mix methanol and isobutylene in a certain proportion and carry out dehydration treatment to ensure the smooth progress of the reaction.
2. Etherification reaction: Under the action of acid catalyst, the pretreated raw material is heated to a certain temperature and etherification reaction is carried out.
3. Separation and refining of products: After the reaction, separate the methyl tert-butyl ether from water and un-reacted raw materials by distillation and extraction, etc., and get the product of methyl tert-butyl ether with higher purity.
Three, equipment selection
In the production process of methyl tertiary butyl ether, it is necessary to choose suitable equipment to ensure the smooth progress of production. The main equipments include:
1. Reactor: choose the reactor with stirring device to ensure the sufficient mixing of raw materials and the uniformity of the reaction.
2. Heater: Choose high efficient and stable heater to ensure the stable control of reaction temperature.
3. Separation equipment: according to the specific process requirements, select the appropriate distillation tower, extractor and other equipment to achieve effective separation and refining of products.
4. Operation points
In the production process of methyl tert-butyl ether, in order to ensure the production efficiency and product quality, the following operation points need to be noted:
1. Strictly control the proportion of raw materials and reaction temperature to avoid the generation of by-products and damage to equipment.
2. Regularly maintain and repair the equipment to ensure the normal operation and service life of the equipment.
3. Strengthen the monitoring of the production process, find out and solve the problems in production in time to ensure the stability and continuity of production.
V. Safety and environmental protection requirements
In the production process of methyl tertiary butyl ether, it is necessary to strictly abide by the safety and environmental protection requirements to ensure the safety and environmental protection of the production process. Specific measures include:
1. Strengthen employee safety training, improve employee safety awareness, and ensure safe operation in the production process.
2. Adopting effective measures for waste gas and waste water treatment to reduce the impact of the production process on the environment.
3. Conduct environmental assessment of the production process on a regular basis to find and solve potential environmental problems in time.
Summary:
Methyl tert-butyl ether, as an important chemical, its manufacturing method involves a variety of aspects such as reaction principle, process flow, equipment selection, operation points and so on. In the actual production process, it is necessary to strictly comply with the safety and environmental protection requirements to ensure the safety and environmental protection of the production process. At the same time, strengthen the production process monitoring and equipment maintenance, improve production efficiency and product quality, to create greater economic and social benefits for the enterprise.
