Removal of hs and nh from reaction effluents

Claim 1

IN A PROCESS WHEREIN A HYDROCARBON OIL CONTAINING SULFUR COMPOUNDS AND NITROGEN COMPOUNDS IS CONTACTED WITH HYDROGEN AT REACTION CONDITIONS AT WHICH HYDROGEN REACTS WITH SAID COMPOUNDS TO FORM BY-PRODUCTD H2S AND BY-PRODUCT NH3 AND THERE IS OBTAINED A PROCESS EFFLUENT MIXTURE CONTAINING HYDROGEN-RICH GAS, LIQUID HYDROCARBONS, H2S AND NH3; WHEREIN SAID EFFLUENT MIXTURE IS PASSED TO A CONTACTING ZONE AND THEREIN CONTACTED WITH WATER TO EXTRACT NH3 AND H2S FROM SAID MIXTURE AND FORM AN AQUEOUS SOLUTION CONTAINING NH3 AND H2S; THE IMPROVEMENT WHICH COMPRISES PASSING THE SAID AQUEOUS SOLUTION TO A RECOVERY ZONE AND THEREIN TREATING IT TO SEPARATE (1) SAID BY-PRODUCTS, FROM (2) WATER CONTAINING NO MORE THAN NONCONTAMINATING AMOUNTS OF H2S AND NH3, AND TO OBTAIN (3) A TREAM CONTAINING ONE OF SAID BY-PRODUCTS IN GREATER AMOUNT THAN THE OTHER OF SAID BY-PRODUCTS; PASSING A PORTION OF SAID STREAM, (3), CONTAINING ONE OF SAID BY-PRODUCTS IN GREATER AMOUNT THAN THE OTHER OF SAID BY-PRODUCTS, TO SAID CONTACTING ZONE AS AN ADDED STREAM THEREIN TO THEREBY EXTRACT NH3 AND H2S FROM SAID PROCESS EFFLUENT MIXTURE AND FORM A DILUTE AQUEOUS AMMONIUM BISULFIDE SOLUTION IN WHICH THE NH3 AND H2S PRODUCED IN SAID PROCESS AND PRESENT IN SAID MIXTURE ARE SUBSTANTIALLY CONFINED AND THEREBY EXCLUDED FROM THE CONTACTED LIQUID HYDROCARBONS.