Combination synthesis of hydrocarbons and organic carbonyl compounds

Claim 1

IN THE PREPARATION OF CARBONYLATED HYDROCARBONS WHEREIN A SYNTHESIS GAS CONTAINING ESSENTIALLY HYDROGEN AND CARBON MONOXIDE IS PASSED IN CONTACT WITH A HYDROCARBON SYNTHESIS CATALYST IN A SYNTHESIS ZONE UNDER REACTION CONDITIONS INCLUDING AN ELEVATED TEMPERATURE AT WHICH THE REACTANTS ARE CATALYTICALLY CONVERTED INTO DESIRED HYDROCARBON FRACTIONS INCLUDING SUBSTANTIAL PROPORTIONS OF DESIRED OLEFINS, THE EFFUENT PRODUCT STREAM IS WITHDRAWN FROM CONTACT WITH THE SYNTHESIS CATALYST, THE MIXED, NORMALLY GASEOUS FRACTION CONTAINING A SUBSTANTIAL PROPORTION OF GASEOUS OLEFINS IS SEPARATED AND TEH PROPORTION OF HYDROGEN AND CARBON MONOXIDE THEREIN REGULATED WITH RESPECT TO THE OLEFIN CONTENT AND WHEREIN THE ENTIRE MIXTURE THUS FORMED IS THEREAFTER PASSED IN CONTACT WITH A CARBONYLATION CATALYST CONTAINING A METAL OF THE IRON GROUP IN A CARBONYLATION ZONE AT A PRESSURE IN THE RANGE OF ABOUT 250-1000 P.S.I. AND A TEMPERATURE IN THE RANGE OF ABOUT 100-350* F. AT WHICH DIRECT CARBONYLATION OF SAID OLEFIN PROCEEDS, THE IMPROVEMENT WHICH COMPRISES EFFECTING SAID ADJUSTMENT OF THE PROPORTION OF HYDROGEN TO CARBON MONOXIDE WITH RESPECT TO THE OLEFIN CONTAINED IN THE FEED STREAM TO THE CARBONYLATION ZONE BY STEPS INCLUDING SUBJECTING SAID NORMALLY GASEOUS FRACTION TO WATER-GAS SHIFT REACTION CONDITIONS AT AN ELEVATED TEMPERATURE SUCH THAT PREDETERMINED PROPORTIONS OF CONTROL HYDROGEN AND CARBON DIOXIDE FORMED IN THE SYNTHESIS ZONE ARE CONVERTED INTO CARBON MONOXIDE AND WATER VAPOR, AND EFFECTING SEPARATION OF WATER VAPOR PRIOR TO INTRODUCTION OF SAID GASEOUS STREAM INTO SAID CARBONYLATION ZONE.