Abstract:
THIS SPECIFICATION DISCLOSES A PROCESS FOR THE DEMETALATION OF HYDROCARBON CHARGE STOCKS CONTAINING METAL IMPURITIES. THE PROCESS COMPRISES CONTACTING SAID HYDROCARBON CHARGE STOCK WITH HYDROGEN AND WITH A CATALYST COMPRISING SALT WATER MANGANESE NODULES. THESE NODULES HAVE BEEN PREVIOUSLY WASHED WITH WATER HAVING A TEMPERATURE OF AT LEAST 125*F. AND A TOTAL SALTS CONTENT OF NOR MORE THAN 1000 PARTS PER MILLION OF A TIME SUFFICIENT TO INCREASE THE ACCESSIBLE SURFACE AREA OF THE NODULES.
Abstract:
Fuel-powered engines are operated in combination with a catalytic converter for the conversion of low octane fuel to high octane fuel which is then introduced into the engine to provide light high octane components for burning in the engine. The catalytic converter includes a catalyst chamber containing a crystalline aluminosilicate catalyst having an alpha value of at least five and preferably of the ZSM-5 or ZSM-8 type of zeolite. On passage through the catalytic converter, low octane fuel is converted to high hydrocarbon gases and introduced into the engine for burning.
Abstract:
A COMBINED AROMATIZATION AND LIGHT GAS HYDROGENOLYSIS WHEREBY NAPHTHA OR LIGHT GAS HYDROCARBONS ARE INITIALLY AROMATIZED IN CONTACT WITH A ZSM-5 TYPE OF SYNTHETIC ALUMINOSILICATE ZEOLITE MOLECULAR SIEVE UNDER SPECIFIED CONDITIONS TO PRODUCE A PRODUCT AT LEAST 30 WEIGHT PERCENT OF WHICH IS A MIXTUE OF AROMATIC HYDROCARBONS, AND THE REMAINDER OF WHICH IS A GASEOUS MIXTURE OF HYDROGEN AND LOWER MOLECULAR WEIGHT HYDROCARBONS. THE GASEOUS MIXTURE IS CHARACTERIZED BY AN ATOM RATIO OF ABOUT 1 CARBON ATOM TO 4 HYDROGEN ATOMS. THIS GAS IS CONTACTED WITH A HYDROGENOLYSIS CATALYST, SUCH AS NICKEL, AT A TEMPERATURE OF ABOUT 525 TO 1000*F. AND A PRESSURE OF ABOUT 0 TO 200 P.S.I.G. TO CONVERT AT LEAST MOST, AND PREFERABLY SUBSTANTIALLY ALL OF THE HYDROGEN AND THE CARBON IN THE HYDROCARBON COMPONENTS TO A SYNTHETIC NATURAL GAS WHICH IS THERMALLY AND PHYSICALLY COMPATIBLE WITH NATURAL GAS.
Abstract:
THIS SPECIFICATION DISCLOSES THE DEMETALATION OF A BYDROCARBON CHARGE STOCK. THE DEMETALATION PROCEDURE INVOLVES CONTACTING THE HYDROCARBON CHARGE STOCK WITH BYDROGEN IN THE PRESENCE OF, AS A CATALYST, A MATERIAL DERIVED FROM THE NATURALLY OCCURING UNDERWATER DEPOSIT KNOWN AS A MANGANESE NODULE. THE MANGANESE NODULE MAY BE EMPLOYED WITHOUT PRETREATMENT OR MAY BE PRETREATED BY SULFIDING OR BY LEACHING TO REMOVE AND RECOVER ONE OR MORE VALUABLE METALLIC CONSTITUENTS. THE MANGANESE NODULE CATALYST, AFTER IT HAS BECOME DEACTIVATED BY USE MAY BE PROCESSED TO REMOVE AND RECOVER ONE OR MORE VALUABLE CONSTITUTENTS.
Abstract:
This specification discloses the demetalation of a hydrocarbon charge stock. The demetalation procedure involves contacting the hydrocarbon charge stock with hydrogen in the presence of, as a catalyst, a material derived from the naturally-occurring underwater deposit known as a manganese nodule. The manganese nodule may be employed without pretreatment or may be pretreated by sulfiding or by leaching to remove and recover one or more valuable metallic constituents. The manganese nodule catalyst, after it has become deactivated by use, may be processed to remove and recover one or more valuable metallic constituents.