Classification of tower equipment

Classified by use: distillation tower, absorption tower desorption tower, extraction tower, washing tower.

① distillation tower The use of liquid mixtures in the volatility of the components of the different to separate the liquid components of the operation known as distillation, repeated distillation process known as distillation, the actual realization of the distillation operation of the tower equipment known as the distillation tower, such as atmospheric towers, decompression towers, the separation of crude oil into gasoline, kerosene, diesel fuel and lubricating oils and so on.

② absorption tower, desorption tower The use of mixed gases in the solubility of the components in solution, through the absorption of the liquid to separate the gas process known as absorption; the absorption of the liquid through the force of heating and other methods to make the dissolved in which the gas is released in the process known as desorption. The realization of the absorption and desorption process of the tower equipment called absorption tower, desorption tower, such as catalytic cracking device in the absorption tower, desorption tower, gasoline recovery from the refinery gas, from cracked gas recovery of ethylene and propylene, as well as gas purification and so on need to be absorption tower, desorption tower.

③ Extraction Tower For the boiling point difference between the components of the liquid mixture is very small, the use of general separation methods can not be resolved in the liquid mixture can be added to a higher boiling point of the solvent (known as the extractant); the use of liquid mixtures of components in the extractant in the solubility of the different, they will be separated, this method is called extraction (also known as extraction). The tower equipment to realize the extraction operation is called extraction tower, such as propane deasphalting device in the extraction tower.

The process of removing useless components or solid dust particles in the gas with water is called water washing, and the tower equipment used is called washing tower.

Classification by operating pressure:

Tower equipment according to its completion of different process operations, its pressure and temperature are not the same. According to the specific process requirements, equipment operation can be at atmospheric pressure, pressurized or reduced pressure operation. The corresponding tower equipment are called atmospheric tower, pressurized tower and reduced pressure tower.