Catalytic hydrocracking of ammonia containing feedstocks
Abstract
Abstract HYDROCARBON FEEDSTOCKS IN ADMIXTURE WITH AMMONIA, AS FOR EXAMPLE THE TOTAL EFFUENT DERIVED FROM THE CATALYTIC HYDROFINING OF A NITROGEN CONTAINING FEEDSTOCK, ARE SUBJECTED TO HYDROCRACKING IN THE PRESENCE OF A STABILIZED, AMMONIA-RESISTANT Y ZEOLITE CATALYST. STABILITY TO STEAM AND AMMONIA IS IMPARTED TO THE ZEOLITE BASE DURING CONVERSION FROM ITS ORIGNAL SODIUM FORM TO A DECATIONIZED AND/OR HYDROGEN FORM BY A NOVEL SEQUENCE OF: (1) PARTIAL EXCHANGE OF AMMONNIUM IONS FOR SODIUM IONS, (2) STEAM CALCINATION, (3) FURTHER ION EXCHANGE OF AMMONIUM IONS FOR SODIUM IONS, AND (4) RECALCINING THE TWICE-EXCHANGED ZEOLITE IN INTIMATE ADMIXTURE WITH A FINELY DIVIDED, HYDROUS METAL OXIDE SUCH AS ALUMINA.
Inventors
- 👤 J Ward
Bibliographic Details
Claims Analysis
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