
Main Steps ·         feast Preparation: natural gas is compressed and desulfurized ·         Reforming: natural gas is mixed with steam and air to make crude syngas ·         Syngas modify: purified streams of nitrogen and hydrogen are produced and prepared in be stoichiometric ratio ·         Syngas Compression ·         ammonium hydroxide synthesis and recuperation Steps and Unit Opps ·         Feed Preparation o         inhering gas compressor and air compressor (not needed if supply line is game pressure) o         Sulfur removal (usually by hydrogenation, details unwrap of our scope) ·         Reforming o         unproblematic reformer (furnace) o         Secondary reformer (refractory lined vessel with gas bed) ·         Syngas Cleanup o         high gear temperature and low temperature shift convertors; packed columns (converts CO to CO2) o         cool down 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         arid (remove trace water) ·         Syng as Compression o         Centri! fugal 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 ease inerts Resource: Tim Eggeman. Ammonia. Kirk-Othmer Encyclopedia of Chemical Technology. October 18, 2001. John Wiley & Sons: right of first publication 2001. If you want to exit a full essay, order it on our website: OrderEssay.net
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