Patent ID: 6866698
Filing Date: 2005-03-15
Classification: B01D,C01B

Abstract:
1. A method for purging a hydrogen purification apparatus comprising the steps of: a) stopping the supply of a hydrogen feed stream to a chamber by closing one or more valves in a first feed line which is connected to the chamber at a first inlet; b) supplying a purge gas to the chamber by opening one or more valves in a second feed line which is connected to the chamber at the first inlet or at a second inlet; c) allowing the exit of gas from the apparatus through a bleed line, which is connected to the chamber at a first outlet, by opening one or more valves in the bleed line; and d) stopping the exit of gas through a product line, which is connected to the chamber at second outlet, by closing one or more valves in the product line; wherein in step (b) the purge stream is supplied to the chamber via a flow-restricting device which is located in the second feed line.