Abstract: The invention relates to a catalyst and application of this catalyst for decomposing methanol to carbon monoxide and hydrogen in order to obtain a hydrogen-rich gas for fuel purposes. The catalyst comprises aluminium oxide and copper oxide and at least 60% of the copper present in the catalyst is bound to aluminium oxide as copper oxide-aluminium oxide spinel. The catalyst contains alkali or alkaline earth oxide which is present in the pores of the spinel in an amount of 0.2-12% by weight calculated as metal, and the catalyst contains 0-10% by weight of manganese. The metal oxide in the pores of the spinel is preferably potassium oxide in amounts of 4-8% by weight calculated as potassium metal.

Abstract: This invention relates to a catalyst and a method for producing said catalyst. At least 60 percent by weight of the catalyst consists of copper oxide, aluminum oxide-spinel and 60-100 percent of the copper present is bound to aluminum oxide as copper oxide, aluminum oxide-spinel, where the molar ratio Cu:Al=0.25-0.50. The catalyst itself contains 1-20 percent by weight of zinc oxide which is present in the pores of the spinel. Further amounts of zinc oxide may be admixed mechanically or be present as a coating on the catalyst tablets. The catalyst is especially well suited for conversion of carbon monoxide with steam to hydrogen. The catalyst is produced by precipitation of copper- and aluminum salts at pH=6.0-6.5 during addition of an ammonium carbonate solution. After filtration and drying, the product is calcined at 750.degree.-850.degree. C. until there is obtained a product having a 60-100 percent spinel structure.

Abstract: A device for converting an analogous signal having a varying amplitude into a pulse series having a pulse length proportional to the present amplitude value of the analogous signal comprises a capacitor, a sample pulse generator for generating sample pulses of a predetermined frequency, means responsive to the sample pulses for connecting the capacitor temporarily during each sample pulse to a potential proportional to the present amplitude value of the analogous signal and to a direct current source so that the capacitor is charged to a voltage proportional to the amplitude value of the analogous signal and for isolating the capacitor from the direct current source and said potential during the intervals between the sample pulses, a constant current path connected in parallel across the capacitor for discharging the capacitor during the intervals between the sample pulses, a pulse shaping circuit responsive to the current flowing through the constant current path for generating a signal pulse when no current