Fuel gas production apparatus and method of starting...

Details Fuel gas production apparatus and method of starting... Fuel gas production apparatus and method of starting...

2005-03-24

2008-08-26

Neckel, Alexa D. (Department: 1795)

Gas: heating and illuminating

Methane -containing product, or treatment or recovery process

C095S090000, C095S095000, C095S096000, C096S108000, C096S109000

Reexamination Certificate

active

07416569

ABSTRACT:
A PSA mechanism has adsorption towers. Cleaning valves and off gas valves are connected to the adsorption towers. Valve positions of at least either the cleaning valves or the off gas valves are determined based on an operation suspension period of the PSA mechanism or internal conditions which vary depending on the operation suspension period.

REFERENCES:
patent: 5961928 (1999-10-01), Maston et al.
patent: 6063161 (2000-05-01), Keefer et al.
patent: 6224651 (2001-05-01), Monereau et al.
patent: 1-164714 (1989-06-01), None
patent: 3-161008 (1991-07-01), None
patent: 2002-020102 (2002-01-01), None
patent: 2002-355521 (2002-12-01), None
Mitsubishi Petrochemical Co. Ltd., “Development of PSA Carbon Dioxide Gas Separation Process,”Chemitopia, vol. 8:44-51 (1991).
Japanese Office Action for Application No. 2004-086973, dated Nov. 20, 2007.

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