Chemistry: fischer-tropsch processes; or purification or recover – Plural zones each having a fischer-tropsch reaction – Diverse catalysts utilized in at least two zones
Patent
1980-07-31
1982-07-06
Helfin, Bernard
Chemistry: fischer-tropsch processes; or purification or recover
Plural zones each having a fischer-tropsch reaction
Diverse catalysts utilized in at least two zones
518708, 518728, 518716, 518714, 518713, 252455Z, C07C 104
Patent
active
043380891
ABSTRACT:
A process is disclosed for the preparation of a hydrocarbon mixture by contacting in a first stage a feed mixture of hydrogen and carbon monoxide with an H.sub.2 /CO molar ratio of less than 1.0 with a trifunctional catalyst combination containing (a) at least one metal component having catalytic activity for conversions of a H.sub.2 /CO mixture into acyclic hydrocarbons, and/or acyclic oxygen-containing hydrocarbons, (b) at least one metal component for the conversion of an H.sub.2 O/CO mixture into an H.sub.2 /CO mixture, and (c) a certain crystalline silicate containing at least one trivalent metal selected from aluminum, iron, gallium, rhodium, chromium and scandium, wherein the molar ratio of the trivalent metal oxide to silica is less than 0.1; adjusting the H.sub.2 /CO molar to at least 1.5 by adding H.sub.2 O, if necessary; followed by contacting in a second stage at least the C.sub.2 - fraction of the reaction product from the first stage with a bifunctional catalyst combination containing at least one metal component with catalytic activity for converting an H.sub.2 /CO mixture into acyclic hydrocarbons and also at least one metal component with catalytic activity for converting an H.sub.2 O/CO mixture into an H.sub.2 /CO.sub.2 mixture.
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Schaper Lambert
Sie Swan T.
Duncan John M.
Helfin Bernard
Reper Ronald R.
Shell Oil Company
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