Liquid air separation plants save the investment and electricity consumption of seawater gasifiers, pumps or combustion vaporisers, and also allow access to liquefied air. The liquefied air is stored in a storage tank and then continuously transported into the liquid air separation plants via a liquid pump or vapour boosting to replenish the cooling capacity and ensure continuous operation of the air separation unit. The use of circulating nitrogen (or air) to absorb the cold at the low temperature end of theliquid air separation plants and aqueous glycol (or Freon) to absorb the cold at the high temperature end of the LNG, enables the liquid air separation plants to be operated in a more economical manner. It can also reduce the electricity consumption of liquid air separation plants by about 56% and the water consumption of the process by more than 99%, which greatly reduces the energy consumption of the system.
The Dear Air Separation Design Institute team has experienced designers in the air separation industry.
