(19)
(11) EP 1 971 693 A2

(12)

(88) Date of publication A3:
13.03.2008

(43) Date of publication:
24.09.2008 Bulletin 2008/39

(21) Application number: 06850135.2

(22) Date of filing: 10.11.2006
(51) International Patent Classification (IPC): 
C21D 1/76(2006.01)
F27D 7/06(2006.01)
(86) International application number:
PCT/US2006/060764
(87) International publication number:
WO 2007/114853 (11.10.2007 Gazette 2007/41)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 16.11.2005 US 737276 P
08.11.2006 US 

(71) Applicant: AIR PRODUCTS AND CHEMICALS, INC.
Allentown, Pennsylvania 18195 (US)

(72) Inventors:
  • BOWE, Donald J.
    Zionsville, Pennsylvania 18092 (US)
  • LIN, Minfa
    Macungie, Pennsylvania 18062 (US)
  • EDWARDS, Robert, J.
    Macungie, Pennsylvania 18062 (US)

(74) Representative: Schwabe - Sandmair - Marx 
Stuntzstrasse 16
81677 München
81677 München (DE)

   


(54) DEOXYGENATION OF FURNACES WITH HYDROGEN-CONTAINING ATMOSPHERES