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

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MTBE (methyl tert-butyl ether) is an important raw material for chemical production, which is widely used in gasoline additives, solvents and chemical intermediates. This article will introduce the manufacturing method of MTBE, including the reaction principle, process flow, equipment selection, operating conditions, waste treatment and safety production.

1. reaction principle

MTBE mainly uses the reaction of methanol and isobutylene to generate methyl tert-butyl ether. The reaction belongs to etherification reaction, and the reaction equation is as follows:

CH3OH CH2 = C(CH3)2 → CH3OC(CH3)3

2. process

MTBE manufacturing process mainly includes raw material pretreatment, etherification reaction, separation and purification and other processes. The specific process is as follows:

1. Raw material pretreatment: methanol and isobutylene are purified and dried respectively to ensure the smooth progress of the reaction.
2. Etherification reaction: The pretreated methanol and isobutylene are mixed according to a certain proportion and enter the etherification reactor for reaction. The reaction temperature, pressure and the type and amount of the catalyst depend on the specific process conditions.
3. Separation and purification: After the completion of the reaction, the reaction product was separated and purified to obtain a higher purity MTBE product.

3. equipment selection

according to the process, need to select the appropriate equipment to complete each process. Specifically, it is necessary to select the etherification reactor, separation tower, distillation tower and other equipment with corrosion resistance, high temperature resistance, high pressure and other properties.

4. operating conditions

In the operation process, it is necessary to control the appropriate temperature, pressure, material ratio and other conditions to ensure the smooth progress of the reaction and the purity of the product. At the same time, it is also necessary to carry out regular maintenance and maintenance of the equipment to ensure the normal operation and service life of the equipment.

5. three waste treatment

MTBE manufacturing process will produce a certain amount of waste gas, waste water and solid waste. In order to ensure environmental protection and sustainable development, these wastes need to be effectively treated. Specifically, waste gas can be treated by absorption, adsorption, incineration and other methods; waste water can be treated by biochemical treatment, chemical precipitation and other methods; solid waste can be treated by safe landfill and resource utilization.

6. safety production

In the manufacturing process of MTBE, it is necessary to strictly abide by safety production specifications to ensure the safety of employees and equipment. At the same time, it is also necessary to establish a sound safety management system and emergency plans to deal with possible emergencies.

In short, the manufacturing method of MTBE involves many aspects, and factors such as reaction principle, process flow, equipment selection, operating conditions, three wastes treatment and safe production need to be considered comprehensively. Only by fully mastering these elements can the manufacturing process of MTBE be carried out smoothly and high-quality products can be obtained.

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