Discoloration indicators for checking life span of...

Chemical apparatus and process disinfecting – deodorizing – preser – With indicating – signalling – recording – sampling – or...

Reexamination Certificate

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C422S129000, C422S600000, C436S080000, C436S164000

Reexamination Certificate

active

08062597

ABSTRACT:
This invention relates to a discoloration indicator for checking the life span of a desulfurization adsorbent, and a desulfurization reactor and a desulfurization system including the same, and specifically, to a discoloration indicator for checking the life span of a desulfurization adsorbent able to effectively adsorb and remove organic sulfur compounds from fossil fuels, including natural gas or LPG containing the organic sulfur compound, and to a desulfurization reactor and a desulfurization system including the same. This invention makes it possible to remove the organic sulfur compound using the desulfurization adsorbent and to check the replacement time of the adsorbent with the naked eye or using an electrical signal, and thus may be applied to the treatment of natural gas or LPG requiring desulfurization, and also to hydrogen generators for home fuel cell generation systems or distributed fuel cell generation systems requiring that devices be simple, or requiring unmanned operation.

REFERENCES:
patent: 3350175 (1967-10-01), Clay et al.
patent: 4277368 (1981-07-01), Amy et al.
patent: 5120511 (1992-06-01), Luft
patent: 5833882 (1998-11-01), Shimada et al.
patent: 6042798 (2000-03-01), Masuda et al.
patent: 2005/0214199 (2005-09-01), Hayashi et al.
patent: 2008/0090115 (2008-04-01), Saito et al.
patent: 63223188 (1988-09-01), None
patent: 2002316043 (2002-10-01), None
patent: 2002358992 (2002-12-01), None
patent: 2003/020489 (2003-01-01), None
patent: 2004/099826 (2004-04-01), None
patent: 1020050003351 (2005-01-01), None
patent: WO 2006/068135 (2006-06-01), None
Machine translation of JP 2002-358992A, which was published on Dec. 13, 2002.
Machine translation of JP 2002-316043A, which was published on Oct. 29, 2002.
First Notification of Office Action from The State Intellectual Property Office of P.R. China dated May 21, 2010 of Application No. 200780025078.7.
McCarty et al.; Thermodynamics of sulfur chemisorption on metals I. alumina-supported nickel;J.Chem.Phys.72:12 (1980) 6332-6337.
McCarty et al.; Thermodynamics of sulfur chemisorption on metals II. alumina-supported rutheniuma);J.Chem.Phys.74:10 (1981) 5877-5880.
Satokawa et al. Adsorptive removal of dimethylsulfide andt-butylmercaptan from pipeline natural gas fuel on Ag zeolites under ambient conditions;J.Apcathb.56 (2005) 51-56.
M.V. Twygg; Catalyst Handbook;Oxford University Press, 2 Ed.(1997) 278-279.

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