Abstract: Process for catalytic steam reforming of a carbonaceous feedstock with improved resistance to sulphur poisoning and sintering characterized by contacting the feedstock with a nickel catalyst supported on magnesium aluminum spinel, MgO·xAl2O3, wherein the spinel support has a specific surface area Asp[m2/g] higher than 400·exp(−Tc/400° C.) obtained by calcination at a temperature Tc[° C.].

Abstract: A propeller (1) for commercial vessels as well as sailing ships with an auxiliary engine, having a hub (2) and at least two propeller blades (1) which are pivotally mounted in the hub (2). The blades (1) are pivotable between unfolded operating positions and at least one passive position in which the shaft does not rotate, and the blades extend axially rearwardly in extension of the hub (2). The blades (1) are moveover adapted to pass each other in said passive position. In the passive position, the blades (1) extend axially away from the hub (2) with the same side edge (15) of the two side edges (14, 15) of the blades facing each other. The propeller can hereby have either the front edge (14) of the blades or the rear edge (15) of the blades as the leading one so that the propeller can operate in ordinary gear or in "low gear" thereby enabling optimal efficiency in several operating situations. Further, the propeller offers minimal water resistance in the passive position.

Abstract: Process for the generation of electrical energy in an internal reforming high temperature fuel cell, comprising steam and/or carbon dioxide reforming of a hydrocarbon feed gas in contact with a catalyst having activity in the steam reforming of the carbonaceous gas to fuel cell fuel gas and being arranged within the fuel cell in heat conducting relationship with electrochemical reactions proceeding in the cell; andelectrochemically reacting the fuel gas in an anode compartment of the cell for the generation of electric energy, wherein the steam reforming activity of the catalyst has been reduced by including one or more salts of metals selected from Group IA, IB, IIA, IVA and VA of the Periodic Table in the catalyst.

Abstract: A series of modified phosphoric acid electrolytes containing fluorinated carbon compounds and silicone fluids as additives are disclosed. The modified electrolytes can improve the fuel cell performance due to the enhanced oxygen reduction kinetics. These additives are, preferably, potassium perfluorohexanesulphonate (C.sub.6 F.sub.13 KO.sub.3 S), potassium nonafluorobutanesulphonate (C.sub.4 F.sub.9 KO.sub.3 S), perfluorotributylamine [(C.sub.4 F.sub.9).sub.3 N] and polymethylsiloxanes [(--Si(CH.sub.3).sub.2 O--).sub.n ]. The additives are added in an amount of 0.1-5 wt % with respect to the phosphoric acid electrolyte.