Waste disposal from oxidative dehydrogenation

Claim 1

IN A PROCESS FOR PREPARATION OF BUTADIENE - 1,3 COMPRISING OXIDATIVELY DEHYDROGENATING A STREAM HAVING BUTENE-2 AS THE MAJOR HYDROCARBON COMPONENT, IN THE PRESENCE OF AIR AND STREAM, PRODUCING A PRODUCT STREAM COMPRISING FROM 8 TO 65 MOL PERCENT BUTADINE -1,3, FROM 0.1 TO 40 MOL PERCENT BUTENE, FROM 40 TO 75 MOL PERCENT NITROGEN, AND FROM 0.03 TO 0.30 MOL PERCENT CARBONYL COMPOUNDS EXCLUSIVE OF WATER, CONTACTING SAID PRODUCT STREAM WITH AN AQUEOUS MEDIUM HAVING A PH OF 10 TO 12, RECOVERING AN AQUEOUS STREAM CONTAINING THE PRINCIPAL AMOUNT OF CARBONYL COMPOUNDS FROM SAID PRODUCT STREAM, REMOVING A PORTION OF SAID HYDROCARBONS FROM SAID AQUEOUS STREAM, AND, FEEDING SAID AQUEOUS STREAM TO A STEAM STRIPPING ZONE, WHEREIN THE IMPROVEMENT COMPRISES SAID AQUEOUS STREAM HAVING FROM 0.045 TO 0.06 MOL PERCENT CARBONYL COMPOUNDS, FROM 0.036 TO 0.042 MOL PERCENT HYDROCARBONS AND FROM 99.86 TO 99.88 MOL PERCENT WATER, SAID STRIPPING ZONE OPERATING AT A TEMPERATURE IN THE RANGE OF 80* TO 179*F AT 2.5 PSIA, ADJUSTING THE TEMPERATURE OF SAID AQUEOUS STREAM PRIOR TO FEEDING INTO SAID STRIPPING ZONE TO A TEMPERATURE LESS THAN THE OPERATING TEMPERATURE OF SAID STRIPPER, MAINTAINING CONDITIONS IN SAID STRIPPING ZONE, INTERNAL REFLUX OF THE MATERIAL THEREIN, WITHDRAWING A GASEOUS OVERHEAD FROM SAID STRIPPING ZONE, SAID OVERHEAD CONTAINING AT LEAST 80 PERCENT OF THE CARBONYL COMPOUNDS FEE FED INTO SAID STRIPPING ZONE IN SAID STREAM, CONDENSING AN AQUEOUS PORTION OF SAID GASEOUS OVERHEAD, SAID CONDENSED PORTION CONTAINING THE MAJOR AMOUNT OF CARBONYL COMPOUNDS IN SAID GASEOUS OVERHEAD, AND WITHDRAWING A LIQUID BOTTOMS, COMPRISING THE MAJOR AMOUNT OW WATER IN SAID STREAM AND HAVING SUBSTANTIALLY LESS CARBONYL COMPOUNDS THAN SAID STREAM.