US PATENT SUBCLASS 518 / 707
.~ Diverse catalysts utilized in at least two zones

Current as of: June, 1999
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518 /   HD   CHEMISTRY: FISCHER-TROPSCH PROCESSES; OR PURIFICATION OR RECOVERY OF PRODUCTS THEREOF

706  DF  PLURAL ZONES EACH HAVING A FISCHER-TROPSCH REACTION {2}
707.~ Diverse catalysts utilized in at least two zones

DEFINITION

Classification: 518/707

Diverse catalysts utilized in at least two zones:

(under subclass 706) Processes wherein different catalysts are utilized in at least two of the zones.