Monday, January 13, 2014

Ammonia

Production Method Kellogg elevated capacity single-train plant Reactants and Products ·          rough material feed is pictorial sport and air. ·         Products are ammonium ion hydroxide and natural gasoline leftovers.
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Main Steps ·          fecundate Preparation: natural gas is compressed and desulfurized ·         Reforming: natural gas is mixed with steam and air to make crude syngas ·         Syngas cleanup spot: purified streams of nitrogen and hydrogen are produced and prepared in reconcile stoichio metric ratio ·         Syngas Compression ·          ammonium hydroxide synthesis and convalescence Steps and Unit Opps ·         Feed Preparation o          essential gas compressor and air compressor (not needed if supply line is spunky pressure) o         Sulfur removal (usually by hydrogenation, details place of our scope) ·         Reforming o          unproblematic crusader (furnace) o         Secondary reformer (refractory lined vessel with gas bed) ·         Syngas Cleanup o          mellow temperature and low temperature shift convertors; packed columns (converts CO to CO2) o          alter and knockout; heat exchangers and stripper (water removal) o         Absorber-stripper system (CO2 removal) o         Methanator (convert residual one C oxides back to methane) o          scorched (remove tr! ace water) ·         Syngas Compression o         Centrifugal compressor (steam turbine driven); multistage with inter-stage cooling ·         Ammonia Synthesis and Recovery o         Reactor: ammonia converter (quench converter) o         Refrigeration to condense ammonia liquid as product o         Small gas purge removes rilievo inerts Resource: Tim Eggeman. Ammonia. Kirk-Othmer Encyclopedia of Chemical Technology. October 18, 2001. John Wiley & Sons: secure 2001. If you want to exit a full essay, order it on our website: OrderCustomPaper.com

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