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Chap._300004 - 2 catalyst The improved reforming process...

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3.2 Monomer Sources Commercial production of the low olefins is based almost entirely on petroleum and natural gas. Two major cracking processes * Catalystic cracking and reforming: The primary objective is to produce gasoline by chain-scission of higher fractions. The process is carried out by heating the higher fractions, such as gas oil, at 450-550 o C in the presence of an Al/SiO
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Unformatted text preview: 2 catalyst. The improved reforming process involves hydrogen and Pt catalyst to form branched paraffins and aromatic compounds to raise “octane” number * Thermal (steam) cracking (pyrolysis - no catalyst involved) fractional distillation monomers (steam cracker) olefin mixtures steam residence time < 1 second tubular coils at 700-850 o C propane butane etc....
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