Abstract: A CMOS power-on reset circuit furnishes a reset signal for bringing the components of a circuit to a defined initial state when the common supply voltage is turned on. The output signal of the reset circuit assumes a first constant value as soon as the supply voltage rises above the level required to turn on the pulldown transistor of an initializing inverter in the reset circuit. A delay circuit causes the output signal of the reset circuit to remain at the first constant value for a period of time sufficient to allow the components of the circuit to settle. The output signal of the reset circuit is then forced to a second constant value. The reset circuit is suitable for use with power supply voltages which rise very rapidly or with power supply voltages which rise very slowly (DC sweep).

Abstract: The present invention provides for a process for reducing the pour point of a hydrocarbon feedstock containing nitrogen- and sulfur-containing impurities. The hydrocarbon feedstock is contacted with hydrogen and a hydrotreating catalyst under hydrotreating conditions whereby a portion of the nitrogen- and sulfur-containing compounds are converted to hydrogen sulfide and ammonia. A portion of the hydrotreater effluent is then passed to a dewaxing zone and contacted with hydrogen under dewaxing conditions in the presence of a dewaxing catalyst containing a borosilicate molecular sieve on silica-alumina-containing matrix.

Abstract: The present invention provides for a process for reducing the pour point of a hydrocarbon feedstock containing nitrogen- and sulfur-containing compounds. Specifically, the hydrocarbon feedstock is passed to an extraction zone wherein N-Methyl-2-pyrrolidone is used to extract a portion of the aromatic compounds. A portion of the extraction zone raffinate is then passed to a hydrotreating zone wherein a portion of the nitrogen and sulfur containing compounds are converted to hydrogen sulfide and ammonia. Subsequently, a portion of the hydrotreating zone effluent is then passed to a dewaxing zone and contacted with a shape selective molecular sieve containing dewaxing catalyst.

Abstract: A method for recovering upgraded liquid products by the hydroconversion of coal, coke, lignite, petroleum fractions, biomass, tar sands bitumen and shale oil are disclosed. In particular, the catalyst composition employed consists of a Group VIB metal component and a highly dispersed tin component.

Abstract: A catalyst containing molybdenum and chromium and method for recovering upgraded liquid products from a solid carbonaceous material using said catalyst are disclosed.

Abstract: Disclosed is a process for the removal of hydrogen from streams comprising olefinic compounds, such as streams from a polymerization reactor. At least a portion of the olefinic compounds are saturated with a substantial portion of the hydrogen present so as to effectively remove hydrogen from the stream. The saturated material formed can be then separated from unreacted olefinic compounds by use of a membrane separator and the olefinic compounds recycled to a polymerization zone for reaction.