Process for removing sulfur and nitrogen from a conversion feed stock with return ofnitrogen to conversion product

Claim 1

A PROCESS FOR UPGRADING A HYDROCARBON FEED MIXTURE BOILING IN THE GASOLINE BOILING RANGE AND CONTAINING NORMALLY INCIDENT ORGANIC NITROGEN COMPOUNDS, SAID PROCESS INCLUDING A HYDROCARBON CONVERSION STEP CARRIED OUT IN THE PRESENCE OF A CATALYST WHICH IS ADVERSELY AFFECTED BY THE PRESENCE OF SAID ORGANIC NITROGEN COMPOUNDS, COMPRISING (1) CONTACTING SAID FEED MIXTURE WITH A SOLID GRANULAR ADSORBENT CONSISTING ESSENTIALLY OF A PARTIALLY DEHYDRATED ZEOLITIC METALLO ALUMINO SILICATE ADSORBENT HAVING PORES OF SUBSTANTIALLY UNIFORM DIAMETER BETWEEN ABOUT 7 A. AND ABOUT 13 A., WHEREBY THERE IS OBTAINED A RAFFINATE ESSENTIALLY FREE OF ORGANIC NITROGEN COMPOUNDS AND A RICH ADSORBENT CONTAINING ADSORBED ORGANIC NITROGEN COMPOUNDS; (2) CONTACTING SAID RAFFINATE WITH SAID CATALYST UNDER HYDROCARBON CONVERSION CONDITIONS TO OBTAIN A CONVERSION EFFUENT; AND (3) DIRECTLY CONTACTING SAID RICH ADSORBENT WITH SAID CONVERSION EFFUENT, WHEREBY THERE IS OBTAINED A SINGLE PROCESS PRODUCT COMPRISING SAID CONVERSION PRODUCT AND DESORBED ORGANIC NITROGEN COMPOUNDS.