Research on Biogas Purification

The relative values of low temperature effective energy and pressure effective energy are variable and the application of liquid air separation plant cold energy is based on the specific use of liquid air separation plant, combined with specific processes to effectively recover liquid air separation plant. In fact the essence of liquid air separation plant cold energy utilisation is the transfer of liquid air separation plant cold to the mass to be cooled to achieve the ...

The air separation column mainly includes main heat exchanger, liquefier, distillation column, condensing evaporator, etc. The main heat exchanger, condensing evaporator and liquefier are plate type of heat exchangers. It is a new type of all aluminum metal composite partition heat exchanger. The average temperature difference is small, and the heat exchange efficiency is as high as 98-99%. Distillation column is the unit of air separation. The types of column unit are classified according to the internal parts. The sieve plate column with sieve plate, the bubble cap column with bubble cap plate, and the packed column with packing material. The sieve plate is widely used in air separation distillation column because of its simple structure, easy manufacture and high efficiency. Packed column is mainly used for distillation column with diameter less than 0.8m and height less than 7m. Bubble column is seldom used because of its complicated structure and difficult manufacture. Turbine