Appeal No. 1997-1551 Application No. 08/235,597 reacting the wet reagent with the SO2 in the wet scrubber means to remove SO2 from the substantially SO3-free flue gas conveyed to the wet scrubber means.3 The references relied upon the examiner are: Peterson et al. (Peterson), APilot-Scale Evaluation of Sorbent Injection to Remove SO3 and HCl@, Proceedings: 1991 SO2 Control Symposium (December 2-3, 1991), pp. 6A-1 to 6A-22. Kohl et al. (Kohl), Gas Purification, 4th ed., Gulf Publishing Company (1985), pp. 302, 303, and 306- 320. British Patent (Steag) 1,589,999 May 28, 1981 Rejections Claims 1-6 stand rejected under 35 U.S.C. ' 103. With respect to claim 1, the examiner relies upon Kohl, Steag, and appellants= admission as evidence of obviousness. With respect to claims 1-6, the examiner relies upon Kohl, Steag, appellant=s admission, and Peterson as evidence of obviousness.1 We reverse both grounds of rejection and institute new grounds of rejection under 37 C.F.R. ' 1.196(b). The claims at issue Claim 1, representative of the claims on appeal, is directed to a method of removing SO3 and SO3 from a flue gas produced by burning fossil fuel comprising the steps summarized as follows: providing flue gas containing SO3 and SO3 produced by burning fossil fuel; sending the flue gas to particulate collection means for collecting and removing particles from the flue gas to produce a partially cleaned flue gas; injecting dry sorbent into the partially cleaned flue gas, wherein 3 Claim 1 is reproduced here as it appears in the April 25, 1996 Amendment After Final Rejection, which was approved by the examiner in the May 6, 1996 Advisory Action. 3Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007