Patent ID: 7485172
Filing Date: 2009-02-03
Classification: B64D,Y02T

Abstract:
1. A method of providing gas to a system which separates from a pressurized supply gas, a product gas, the method comprising conditioning the supply gas by dividing the gas supply into system gas and supply gas, feeding the supply gas to a condenser where the supply gas is cooled by a coolant and moisture is removed from the supply gas to dry the supply gas, passing the system gas to a cooling device where the system gas is cooled, and using the cooled system gas as the coolant in the condenser and wherein the cooled system gas is compressed after using the cooled system gas as a coolant in the condenser, and is used in a heat exchanger to warm the supply gas after drying, to further condition the supply gas to bring the temperature of the supply gas to within a predetermined operating range for a downstream separation system.