Removal of organic nitrogen compounds from hydrocarbons with a zeolite

Claim 1

A PROCESS FOR THE DENITORGRENATION OF A NORMALLY LIQUID HYDROCARBON MIXTURE DERIVED FROM A MATERIAL SELECTED FROM THE CLASS CONSISTING OF PETROLEUM, SHALE OIL AND COAL TAR OIL, SAID MIXTURE BEING CONTAMINATED WITH NORMALLY INCIDENT ORGANIC NITROGEN COMPOUNDS OF SUBSTANTIALLY THE SAME BOILING RANGE, WHICH PROCESS COM PRISES CONTACTING SAID MIXTURE WITH A SOLID PARTIALLY DEHYDRATED ZEOLITIC METALLO ALUMINO SILICATE ADSORBENT HAVING SUBSTANTIALLY UNIFORM PORES AT LEAST 7 A. IN DIAMETER, THEREBY SORBING SAID ORGANIC NITROGEN COMPOUNDS, SEPARATING A HYDROCARBON MIXTURE OF REDUCED NITROGEN CONTENT FROM THE ADSORBENT, AND CONTACTING THE ADSORBENT CONTAINING SORBED NITROGEN COMPOUNDS WITH AN OXYGENCONTAINING GAS WHILE CONTROLLING THE TEMPERATURE AT VALUES BELOW ABOUT 1100*F. SUFFICIENT TO BURN SAID SORBED NITROGEN COMPOUNDS THEREFROM AND REGENERATE SAID ADSORBENT.