Oxygen production is drawn at the lower level of the LP column, and thru expansion air sub-cooler and main heat exchanger reheating, it is then delivered out of the column. Waste nitrogen is drawn at the upper level of the LP column, and after being reheated in the sub-cooler and main heat exchanger, it is then delivered out of the column, with some part used as the regeneration gas for the molecular sieve adsorbers. Pure nitrogen is delivered at the top of the LP column, and thru reheating in the liquefied air / liquefied nitrogen subcooler and the main heat exchanger, it is delivered out of the column.
Hangzhou Cando Air Separation Complete Plant Co., Ltd., which was grown out of Technical Service Division of Hangzhou Hangyang Co., Ltd., was established in 1999. The company has separatelegal representative. We have rich technicalpersonnel including senior engineers, engineers and managers. And also we have different kings of machines/equipments for sheet metal working, welding and monitoring/measuring as well as compute control system.
