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Alkylation reactor quality control
New Patents
4713062 READY TO USE SYRINGE Giovanni Stevanato, Chiasso, Switzerland assigned to Vecta Glass Company Ltd The invention provides a ready to use syringe easy to use, of low cost and rapid packing, having high security against bacterial pollution, comprising a cylindrical shaped container for the injectable solution also serving as piston and being closed by a piston plug, which may be perforated by a point extending downwardly from a small suction tube, fixed to the outer casing of the syringe in correspondance with the head for connection to the guide cone of the administration needle.
4713181 M E T H O D AND APPARATUS F O R HANDLING SLUDGE Frederick Russell assigned to Protectaire Systems Co A method and apparatus in which a water sludge suspension is initially separated from the water by skimming and then is conveyed to a dewatering station at which the sludge is oscillated or vibrated to separate mechanically the water from the solid sludge material. Preferably, at the dewatering station, the sludge is dropped a predetermined distance onto a sieve, the impact of the falling sludge producing a squeezing action on the sludge to initially exude the occluded water. The sieve, which is inclined, is then oscillated or vibrated to work the sludge to further exude water therefrom and to urge the sludge down the inclined surface of the sieve. After traveling to the bottom of the sieve, the sludge, now substantially dewatered, is received by a container for disposal.
4713547 M E T H O D AND APPARATUS F O R MONITORING THE FLOW OF MERCURY IN A SYSTEM Mark W Grossman assigned to GTE Products Corporation An apparatus and method for monitoring the flow of mercury in a system. The equipment
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enables the entrainment of the mercury in a carrier gas e.g., an inert gas, which passes as mercury vapor between a pair of optically transparent windows. The attenuation of the emission is indicative of the quantity of mercury (and its isotopes) in the system. A 253.7 nm light is shone through one of the windows and the unabsorbed light is detected through the other window. The absorption of the 253.7 nm light is thereby measured whereby the quantity of mercury passing between the windows can be determined. The apparatus includes an in-line sensor for measuring the quantity of mercury. It includes a conduit together with a pair of apertures disposed in a face to face relationship and arranged on opposite sides of the conduit. A pair of optically transparent windows are disposed upon a pair of viewing tubes. A portion of each of the tubes is disposed inside of the conduit and within each of the apertures. The two windows are disposed in a face to face relationship on the ends of the viewing tubes and the entire assembly is hermetically sealed from the atmosphere whereby when 253.7 nm ultraviolet light is shone through one of the windows and detected through the other, the quantity of mercury which is passing by can be continuously monitored due to absorption which is indicated by attenuation of the amplitude of the observed emission.
4713774 ALKYLATION REACTOR QUALITY CONTROL Gary L Funk, William B Bard assigned to Phillips Petroleum Company In an acid alkylation process wherein a fresh isobutane stream is combined with an olefin stream to form a combined isobutane olefin feed stream, a control system' maintains a desired ratio of isobutane to olefin in the combined feed stream by manipulating the flow rate of the fresh isobutane stream. In addition, the controller automatically compensates for the effect of changes in the fresh isobutane feed stream by making equal changes in the flow rate of reactor effluent. Thus, the liquid level in the alkylation reactor is unaffected by changes made in the fresh isobutane stream to maintain the desired isobutane to olefin ratio.
4713062 READY TO USE SYRINGE Giovanni Stevanato, Chiasso, Switzerland assigned to Vecta Glass Company Ltd The invention provides a ready to use syringe easy to use, of low cost and rapid packing, having high security against bacterial pollution, comprising a cylindrical shaped container for the injectable solution also serving as piston and being closed by a piston plug, which may be perforated by a point extending downwardly from a small suction tube, fixed to the outer casing of the syringe in correspondance with the head for connection to the guide cone of the administration needle.
4713181 M E T H O D AND APPARATUS F O R HANDLING SLUDGE Frederick Russell assigned to Protectaire Systems Co A method and apparatus in which a water sludge suspension is initially separated from the water by skimming and then is conveyed to a dewatering station at which the sludge is oscillated or vibrated to separate mechanically the water from the solid sludge material. Preferably, at the dewatering station, the sludge is dropped a predetermined distance onto a sieve, the impact of the falling sludge producing a squeezing action on the sludge to initially exude the occluded water. The sieve, which is inclined, is then oscillated or vibrated to work the sludge to further exude water therefrom and to urge the sludge down the inclined surface of the sieve. After traveling to the bottom of the sieve, the sludge, now substantially dewatered, is received by a container for disposal.
4713547 M E T H O D AND APPARATUS F O R MONITORING THE FLOW OF MERCURY IN A SYSTEM Mark W Grossman assigned to GTE Products Corporation An apparatus and method for monitoring the flow of mercury in a system. The equipment
IX
enables the entrainment of the mercury in a carrier gas e.g., an inert gas, which passes as mercury vapor between a pair of optically transparent windows. The attenuation of the emission is indicative of the quantity of mercury (and its isotopes) in the system. A 253.7 nm light is shone through one of the windows and the unabsorbed light is detected through the other window. The absorption of the 253.7 nm light is thereby measured whereby the quantity of mercury passing between the windows can be determined. The apparatus includes an in-line sensor for measuring the quantity of mercury. It includes a conduit together with a pair of apertures disposed in a face to face relationship and arranged on opposite sides of the conduit. A pair of optically transparent windows are disposed upon a pair of viewing tubes. A portion of each of the tubes is disposed inside of the conduit and within each of the apertures. The two windows are disposed in a face to face relationship on the ends of the viewing tubes and the entire assembly is hermetically sealed from the atmosphere whereby when 253.7 nm ultraviolet light is shone through one of the windows and detected through the other, the quantity of mercury which is passing by can be continuously monitored due to absorption which is indicated by attenuation of the amplitude of the observed emission.
4713774 ALKYLATION REACTOR QUALITY CONTROL Gary L Funk, William B Bard assigned to Phillips Petroleum Company In an acid alkylation process wherein a fresh isobutane stream is combined with an olefin stream to form a combined isobutane olefin feed stream, a control system' maintains a desired ratio of isobutane to olefin in the combined feed stream by manipulating the flow rate of the fresh isobutane stream. In addition, the controller automatically compensates for the effect of changes in the fresh isobutane feed stream by making equal changes in the flow rate of reactor effluent. Thus, the liquid level in the alkylation reactor is unaffected by changes made in the fresh isobutane stream to maintain the desired isobutane to olefin ratio.