| 摘要 |
A multi-stage process for treating n-paraffin feed is provided, including the steps of: (a) providing an n-paraffin feed; (b) contacting the n-paraffin feed with a dehydroisomerization catalyst under dehydroisomerization conditions so as to provide a dehydroisomerization product stream comprising n-paraffin, iso-paraffin, olefin and iso-olefin fractions; (c) mixing at least the iso-olefin fraction from the dehydroisomerization product stream with an alkyl alcohol to provide an etherification reaction feed; (d) contacting the etherification reaction feed with an etherification catalyst under etherification conditions so as to provide an etherification product stream comprising alkyl tert alkyl ether, n-paraffin, iso-paraffin and olefin fractions. (e) contacting an alkylation reaction feedstock comprising at least the iso-paraffin and olefin fractions from the etherification product stream with an alkylation catalyst under alkylation conditions so as to provide an alkylation product stream comprising alkylate and n-paraffin fractions; and (f) adding the n-paraffin fraction of the alkylation product stream to the n-paraffin feed of step (a). |
