Eniricerche S.p.a.

Agip S.p.a.

Eniricherche S.p.a.

Alberto Del Bianco

Giuseppe Bellussi

Carlo Perego

Cristina Flego

Laura Zanibelli

Fabrizio Stroppa

Disclosed is an active catalyst in the hydroisomerization of waxes (paraffins), which catalyst is constituted by a carrier of acidic nature, of silica-alumina gel, and one or more metals belonging to Group VIIIA. Also a process for preparing said catalyst is disclosed.

Catalyst for the hydroisomerization of long-chain n-paraffins and

Catalyst for the hydroisomerization of long-chain N-paraffins and

Particular hydrocarbon composition constituted by saturated species, alkylbenzenes and polyaromatics, useful for dissolving asphaltenic residues present in oil wells.

Effective hydrocarbon blend for removing asphaltenes from oil wells

Particular hydrocarbon composition constituted by saturated species, alkylbenzenes and polyaromatics, useful for dissolving asphaltenic residues present in oil wells. Such useful hydrocarbon blends for dissolving asphaltenic residues present in oil wells, are characterized in that said blends are essentially constituted by a composition selected from those which, on a ternary chart, in which the vertex (A) represents 100% of polyaromatics with z&lt;-6, the vertex (B) represents 100% of saturated species, and the vertex (C) represents 100% of alkylbenzenes with z=-6, are comprised between:

Effective hydrocarbon blend for removing asphaltenes

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Magenta, Italy

Alberto Del Bianco