L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Valentina Rosetti

Daniel Gary

Angelo Vaccari

Giuseppe Fornasari

Francesco Basile

Pascal Del-Gallo

Pascal Del Gallo

Erika Scavetta

Domenica Tonelli

Chemical combination (C) between an active solid phase which is covalently bound to the surface of an inert solid phase, characterized in that said solid active phase essentially consists in a solid solution of a mixture of at least a magnesium oxide type phase compound and at least a magnesium silicate type phase compound in which Al, and Rh and/or Ni cations are soluted and characterized in that said inert solid phase is either a compound represented by the general formula (I):AlNiRhMgSiO&#x2003;&#x2003;(I)wherein a, b, c, d, and e are integers which are greater than or equal to 0, provided that at least one of the Si, Al, Mg, Rh or Ni elements, which is present in the solid active phase, is also present in the solid inert phase. Use of a catalyst in chemical reactions involving the conversion of hydrocarbonaceous feedstocks.

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Process for the preparation of a catalytic specie consisting essentially of a metallic support, which is coated with a ceramic active phase layer, mainly compound of the general formula (I):[RhNiMgAl(OH)](A)kHO,&#x2003;&#x2003;(I)wherein Ais mainly a silicate or a polysilicate anion; 0&#x2266;x&#x2266;0.3; 0&#x2266;y&#x2266;0.9; 0&#x2266;l&#x2266;0.9; 0&#x2266;m&#x2266;0.5; 0&#x2266;k&#x2266;10; x+y&#x3e;0; 0.5&#x2266;y+l&#x2266;0.9; x+y+l+m=1; and z is the total electrical charge of the cationic element or a compound of the general formula (II):[AA'][BNiRh]O&#x2003;&#x2003;(II)wherein A and A&#x2032; are different and are selected from the Lanthanide or the Actinide families or from the group IIof the Mendeleev's periodical table of elements; B is selected from the transition metal groups of columns IIIb, IVb, Vb, VIb, VIIb, Ib and IIb and group VIIIb of the Mendeleev's periodical table of elements; 0&#x2266;x&#x2266;0.7, 0&#x2266;y&#x2266;0.5, 0&#x2266;x+y&#x2266;0.8, 0&#x2266;z&#x2266;1 andis the sub stoechiometric value of oxygen to obtain the electric neutrality of the Perovskite compound; said process essentially consisting in a step (a) of electro-deposition of said ceramic active phase on said metallic support. Use of said catalytic specie as a catalyst oxidation of gaseous hydrocarbons, to produce synthesis gas.

Process for the preparation of a catalytic specie using electro-deposition

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Modigliana, Italy

Valentina Rosetti