Abstract: A process to synthesize a catalyst performing Water-Gas shift reaction at a temperature more than 300° C. using a precursor having general formula [(Cu, Zn)1-x (Al, M)x (OH)2]x+ (An?x/n).kH2O with M=Al, La, Ga or In, A=CO3, 0.33<x<0.5, 1<n<3.

Abstract: A process to synthesize a catalyst performing Water-Gas shift reaction at a temperature more than 300° C. using a precursor having general formula [(Cu, Zn)1?x (Al, M)x (OH)2]x+ (An?x/n).kH2O with M=Al, La, Ga or In, A=CO3, 0.33<x<0.5, 1<n<3.

Abstract: Process for treating a catalytic reactor comprising a catalyst bed that includes the successive steps of passivating the catalytic reactor leading to the production of an oxidation layer at the surface of the active sites of the catalyst bed, opening the reactor, and skimming at least one portion of the catalyst bed.

Abstract: Process for treating a catalytic reactor comprising a catalyst bed that includes the successive steps of passivating the catalytic reactor leading to the production of an oxidation layer at the surface of the active sites of the catalyst bed, opening the reactor, and skimming at least one portion of the catalyst bed.

Abstract: [RhxMgyAlw(OH)2](3x+2y+3w?2)+(A2?)(3x+2y+3w?2)/2,k H2) (I) Hydrotalcite-like compound of the formula (I): catalyst synthesis process involving such a compound, and the use of this catalyst for hydrocarbons reforming and for ethanol reforming.

Abstract: A hydrotalcite-type compound of the formula (I): [CuxZnyAlw(OH)2](2x+2y+3w?2)+(A2?)(2x+2y+3w?2)/n,kH2O??(I) wherein (A2?) represents either a carbonate anion or a silicate anion, x>0, y>0, w>0, (x+y)=(1?w), 1<[(x+y)/w]<5, and 1/99?x/y?1/1; a synthesis process for its preparation; a catalyst obtained by its calcination and the subsequent reduction of the calcined product.

Abstract: 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): [RhxNiyMglAlm(OH)2]z+(An?z/n) kH2O.

Abstract: 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): AlaNibRhcMgdSieOf??(I) wherein a, b, c, d, and e are integers which are greater than or equal to 0, f is an integer greater than 0, the sum a+b+c+d?0, and wherein (3a+2b+3c+2d+4e)/2=f, or a mixture of compounds represented by the said general formula (I), 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.

Abstract: 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): [RhxNiyMglAlm(OH)2]z+(An?z/n)kH2O,??(I) wherein An? is mainly a silicate or a polysilicate anion; 0?x?0.3; 0?y?0.9; 0?l?0.9; 0?m?0.5; 0?k?10; x+y>0; 0.5?y+l?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): [AzA?1-z][B1-x-yNixRhy]O3-???(II) wherein A and A? are different and are selected from the Lanthanide or the Actinide families or from the group IIa of 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?x?0.7, 0?y?0.5, 0?x+y?0.

Abstract: 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): AlaNibRhcMgdSieOf??(I) wherein a, b, c, d, and e are integers which are greater than or equal to 0, f is an integer greater than 0, the sum a+b+c+d?0, and wherein (3a+2b+3c+2d+4e)/2=f, or a mixture of compounds represented by the said general formula (I), 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.

Abstract: 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): [RhxNiyMglAlm(OH)2]z+(An?z/n)kH2O,??(I) wherein An? is mainly a silicate or a polysilicate anion; 0?x?0.3; 0?y?0.9; 0?l?0.9; 0?m?0.5; 0?k?10; x+y>0; 0.5?y+l?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): [AzA?1-z][B1-x-yNixRhy]O3-???(II) wherein A and A? are different and are selected from the Lanthanide or the Actinide families or from the group IIa of 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?x?0.7, 0?y?0.5, 0?x+y?0.

Abstract: A composition and method for a Catalytic Partial Oxidation (CPO) of methane to synthesis gas. The catalyst allows the process to proceed at low residence time providing a long time thermal stability. The perovskite structure [AzA?1-z][B1-x-yNix Rhy] O3-? of the catalyst is obtained using mainly La, Sr, as A and A? cation sites (A, A?: actinide and/or lanthanide, elements and/or elements from Group I and II) and mainly Fe, Ni, as B cation sites (B: transition metal element and/or element from Group III to V).

Abstract: The present invention relates to the use of a silicon-based porous catalytic system for oligomerizing light olefins, the porous silicon-based catalytic system having an average pore diameter of between about 1 nm and about 5 nm and an acidity level of between about 150 ?mol/g and about 650 ?mol/g, and prepared from at least one hydrolysable silicon-based compound, or other source of silicon, and at least one non-ionic surface active agent. The invention also relates to a process for oligomerizing light olefins using the silicon-based porous catalytic system, and to certain silicon-based porous catalytic systems.

Abstract: A process of preparation of silicon-based multifunctional catalytic systems synthesised together with one or more surface active agents is described. Also described is a multifunctional silicon-based porous catalytic system including at least one porous catalytic support structurally including silica and at least one other metal or non-metal oxide chosen from aluminium, zirconium, and boron. The catalytic support is synthesised together with one or more surface active agents, and at least one or more catalyst chosen from among metallic elements of groups 6-10 of the periodic table of the elements. The catalytic systems are useful in hydrogenation and/or decyclisation reactions of (poly)aromatic compounds, especially for improving the quality of diesel fuels and increasing their cetane number.

Abstract: A semiconductor test device for acquiring a multiplexed clock signal from LSI output data and using the clock to test the LSI. The device includes a time interpolator 30 and registers 41a to 41n connected in series. The time interpolator has flip-flops 31a to 31n connected in parallel for inputting output data from an LSI 1 to be measured, a delay circuit 32 for successively inputting strobes delayed at a constant timing interval to the flip-flops 31 and outputting time-series level data, and an encoder 34 for inputting the time-series level data output from the flip-flops 31 and encoding it into position data indicating an edge timing. The registers 41a to 41n successively store position data from the encoder 34 and output them at a predetermined timing. The device further includes a digital filter for outputting the position data output from the registers 41 as a recovery clock.

Abstract: The present patent deals with new catalysts for the Catalytic Partial Oxidation (CPO) of methane to synthesis gas (hydrogen and carbon monoxide), a gas mixture widely employed in industry. The discovered perovskite catalysts allows to carried out the process at low residence time obtaining a long time stability in the reaction conditions notwithstanding the high temperature reached in the reactor. The fundamental component of the catalyst is the perovskite structure [AzA′1-z][B1-x-yNixRhy]O3-&dgr; obtained using mainly La, Sr, as A and A′ cation sites (A, A′: actinide and/or lanthanide, elements and/or elements from Group I and II) and mainly Fe, Ni, as B cation sites (B: transition metal element and/or element from Group III to V). The active phases Ni and/or Rh are inserted in the perovskite structure during the preparation and are reduced in situ or before the catalytic tests.

Abstract: Disclosed is a process for the production of gamma-butyrolactone from maleic anhydride or succinic anhydride by hydrogenation in the presence of a catalyst composition comprising the mixed oxides of copper, zinc and zirconium.