We stock and Supply Copper Catalyst used in PSA CU- DX Model , The reaction of Oxidation to be removed is with pre-reduced catalyst at around 150°C – 200°C is : 2 Cu + O2 = 2 Cuo, the catalyst is reduced again by Hydrogen gas at 175-225°C as per following reaction: Cu + H2 = Cu + H2O The Hydrogen required for regeneration is provided by cylinders