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Show BASE CASE OPERATING VARIABLE RANGES Temperature _oF Pressure - Psig Gas Flow - MMSCFD 100 50 75 100 120 75 110 200 75 110 120 75 The target total sulfur concentration in the fuel gas was set as 40 ppm of combined sulfur compounds. The vendors were provided the option to treat the feed gas to the amine system, the treated gas from the amine system or to alter the amine unit itself. . It was determined that the majority of the above listed p~ cannot remove the sulfur oompounds H~ COs, ~ and mercaptans simultaneously. From the quotations received back from vendors, the processes that appeared to be the most promising for RFG service were chosen for funher evaluation. C Sulfur Removal Efficiencies 1.0 Individual Process Performances The incremental removal efficiencies with respect to H~, COS, and RSH's were estimated for the chosen processes individually. These efficiencies represent what can be achieved over and above a typical, existing amine system. These efficiencies are summarized in TABLE 2 below at a 120 psig operating pressure. Table # 2 - Fuel Gas Desulfurization Removal Efficiencies - Single Units • Potential ~ Removal of Incremental Total emcltu &Cblml BUUU[ SDICIII SUIIU[ Blmoval H,S RSH COS (tt - ApproxJ 1.) Cau.llc Wa.h SUS 85 55 .. 2.) Regen NaOH 96 86 55 .. 8.) Hydrolyala 87 3a .. 4.) Hydrogenation 88 27 ~ 6.) EnhlUJead !iO/WIn' a. DIPA - Sultlnol 86 815 58 .. b. . 88 55 88 88 II. o. MDEA - H8-105 88 51 38 '4 d. OOA 85 eo 70 78 .. 8.) Compre •• lon 85 38 ~5 II. 7.) MutlD.... ChamlCII.1 Lo-Ca' 87 78 18 58 .. 8ulferox 97 57 215 53 II. • Baaed on Eetimatee - No Plant Data I -10- |