An extensive drilling program was underway in northwestern Canada and considerable gas production was expected. A multi-phase amine facility was being built to ultimately process gas. There is a relatively large acid gas stream from the gas flowing into the amine facility. Each phase of construction, of which four or more were anticipated, included two amine facilities. To treat the acid gas stream, each amine train was designed to be directly followed by a four-train acid gas sweetening unit (AGSU) with each AGSU capable of treating approximately 6 MMscf/D of acid gas with an H2S concentration ranging between 1,300 and 4,000 ppm.
Each UltraFab AGSU train consumed approx. 1,840 gal/D (7000 L/d) of chemical, equating to a treating cost of $0.08/Mscf.
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