Appeal No. 2003-1788
Application No. 09/403,081
afterburning by adding an oxygen-containing gas to the partially
combusted gas, and feeding the reaction gas mixture to a waste-
heat boiler and thereafter to one or more catalytic reactors,
characterized in that an afterburning zone is integrated into the
combustion reactor located downstream and separate from a burner
by feeding the oxygen-containing gas directly into the combustion
reactor by a multiplicity of individual nozzles, and feeding the
oxygen-containing gas into the combustion reactor at an intake
velocity in the range between Mach number 0.4 and 2.
23. An apparatus for procuring elemental sulfur by
combustion of hydrogen sulfide or a hydrogen sulfide-containing
gas, comprising a combustion reactor to which a burner is fixed
in which the hydrogen sulfide or the hydrogen sulfide-containing
gas is partially combusted with addition of air, a waste-heat
boiler and one or more catalytic reactors, characterized in that
a multiplicity of nozzles are directly fixed to the combustion
reactor downstream from the burner, through which an oxygen-
containing gas is fed into the combustion reactor, as a result of
which the hydrogen sulfide or the hydrogen sulfide-containing gas
is subjected to afterburning.
The examiner relies upon the following reference as evidence
of unpatentability:
Gitman et al. (Gitman) WO 89/12023 Dec. 14, 1989
Claims 2, 5, 14, 17, 22, 23, and 24 stand rejected under
35 U.S.C. § 102(b) as being anticipated by Gitman.
Claims 2, 4-11, 13, 14, 15, 17, 18, and 21-24 stand rejected
under 35 U.S.C. § 103 as being obvious over Gitman.
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 Next
Last modified: November 3, 2007