With the rapid growth of liquid air separation plant production and sales, and the global energy crunch, the prospects for the use of liquid air separation plant cold energy are very broad. The use of liquid air separation plant cold energy should be developed in the direction of integration, fully integrated and effective use of liquid air separation plant cold energy liquid air separation units, using circulating nitrogen through the heat exchanger to recycle liquid air separation plant cold, and liquefying air to transfer the cold to the air separation system, through a suitable refrigerant Transferring the cold to the air compression system. The cold energy of liquid air separation plant is used to produce liquid oxygen, liquid nitrogen and liquid argon and to significantly reduce electricity consumption by more than 50% and water consumption by more than 90%. Transfer of the cold through the feed air, avoiding leakage of methane into the separation system. The safety of the liquid air separation plant is high, the extraction of dirty liquid nitrogen through the lower tower, the poor liquid air, increasing the reflux ratio of the upper tower, so that the air separation plant does not reduce the extraction rate due to the liquefaction of the raw material air, the introduction of the cold of liquid air separation plant in the air separation process is conducive to the rational use of cold.
The liquefaction rate of liquid air separation plant produced by Dear Air Separation is greatly increased and is suitable for the production of liquid products, as well as for internal compression liquid air separation plant with high cold consumption.
