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Application of Vacuum Pump in Fine Chemical Industry


Crystallization, distillation, extraction, sublimation, drying, deodorization, degassing, crystallization and vaporization, polymerization, vacuum evaporation, negative pressure filtration, monomer recovery, adsorption and desorption, material transportation, etc.

Vacuum pump applications: gas transportation, gas compression, vacuum filtration/pressure filtration, vacuum distillation, vacuum drying, crystallization, absorption, reactor, etc.

oil refining

Crude oil column vacuum system - Atmospheric and vacuum distillation, solvent dewaxing, other vacuum distillation column, torch gas energy recovery.

Crude Oil Tower Vacuum System: Usually a first stage steam jet pump is installed in front of a large liquid ring vacuum pump, and two parallel liquid ring compressors are installed after the vacuum pump. The gas from the compressor enters the H2S degasser (ammonia reaction), and then enters the heating furnace for fuel combustion.

Solvent dewaxing: Solvent dewaxing process includes cooling wax oil and coagulating it into wax, then filtering and cleaning with solvent. Keeping the vacuum in the vacuum drum filter makes it possible for the wax oil to flow through the filter under the external pressure. Nitrogen is usually used as a protective gas to enter the filter and be pumped out. The filter oil and nitrogen enter the receiver, and the oil is separated; the nitrogen enters the vacuum pump through the drum. Such continuous dewaxing cycle operation.

Other Vacuum Distillation Towers-Vacuum Pump and Steam Jet Pump

Yantai Walm provides a vacuum mixing system for vacuum system of crude distillation column with vacuum pump and steam jet pump, but this does not mean that this technology can only be used in this situation. In the past, many vacuum systems used steam jet pumps. It is a good choice to replace them with mixed vacuum systems. The result of replacement is to save energy.

Energy Recovery of Exhaust Air: Non-condensable gases from crude oil vacuum tower are valuable as fuel and lighting products. In addition, it meets the requirements of environmental protection. The application of liquid ring compressor in this field has a good and reliable operation record. The moisture and solvent vapor in the steam do not harm them. They allow the carrying of particles. Advantages: Energy consumption is similar and operation is stable.

Application of Vacuum Pump in Fine Chemical Industry

Application of Water Ring Vacuum Pump-Explosive Gas Compression

As a typical compression device of explosive dangerous gas, the compressor system can make acetylene cool and immerse it in sealed liquid-water. Experiments on explosion of liquid ring compressor have been carried out purposefully. The results show that the compressor can effectively play the role of flame eliminating device. Features: Isothermal compression, explosion-proof.



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