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5492603 Apparatus for recovering acetic acid from aqueous streams
PatentsALERT
5491275 PROCESSFOR THE DEHYDROGENATION OF PARAFFINIC HYDROCARBONS Vora Bipin V; Imai Tamotsu STATES assigned to UOP
Darien, IL, UNITED
An improved process for the catalytic dehydrogenation of paraffinic hydrocarbons is disclosed. Feed paraffinic hydrocarbons are dehydrogenated by means of contacting the dehydrogenatable hydrocarbon with a dehydrogenation catalyst in a first dehydrogenation zone wherein the endothermic dehydrogenation reaction reduces the temperature of the resulting hydrocarbon stream containing dehydrogenated hydrocarbon compounds. The resulting effluent from the first dehydrogenation zone is then contacted with a hot hydrogen-rich gaseous stream having a temperature greater than the hydrocarbon stream to increase the temperature of the hydrocarbon stream and then introducing the resulting heated stream into a second dehydrogenation zone to produce additional dehydrogenated hydrocarbon compounds.
PCTNo. PCT/SE91/00573 Sec. 371 Date Jun. 9, 1993 Sec. 102(e) Date Jun. 9, 1993 PCT Filed Sep. 1, 199 1 PCT Pub. No. WO92/07007 PCT Pub. Date Apr. 30,199O. A method and an apparatus for continuous preheating of powdered starch in the preparation of modified starch are disclosed. The powdered starch is fed into a preheating circuit including an inlet opening for powdered starch in a conduit, and is pneumatically conveyed in the conduit by a hot air flow. When the powdered starch has been preheated by the air to the desired temperature, it is separated from the air in a separating device, whereupon the air is recycled in the circuit via a conduit, a fan and a heat exchanger for reheating the air, back to the inlet opening for conveying and preheating of a fresh quantity of powdered starch. If necessary, excess air can be removed from, or supplementary air be supplied to, the preheating circuit.
5492603 APPARATUS FOR RECOVERING ACETIC ACID FROM AQUEOUS STREAMS Gualy Ronald; Lamshing Wisto; Gentry Joseph C; Varela Fernando Arlington, TX, UNITED STATES assigned to Glitsch Inc
5491968 COMBUSTION SYSTEM AND METHOD FOR POWER GENERATION Shouman Ahmad R Las Cruces, NM, UNITED STATES A power generating combustion system and method are provided with a first stage combustion system that may include a wet oxidation reactor or a direct contact boiler and a second stage combustor including a stoichiometric burner to produce the substantially complete combustion of a wide range of fuels and mixtures of fuels to produce combustion products usable in generating power. The system design temperatures and pressures allow the substantially complete combustion of garbage, municipal and industrial waste and low quality fuels to generate power.
METHOD AND APPARATUS FOR CONTINUOUS HEATING OF POWDERED STARCH Ralvert Klas Karlshamn, SWEDEN assigned to Sveriges Starkelseproducenter Forening UPA
J. Cleaner
Prod. Volume
5492613 PROCESSFOR ELECTROLESS PLATING A METAL ON NON-CONDUCTIVE MATERIALS Zhang Shaoxian; Han Rongsheng; Zheng Chuanmin Dewai, Beijing 100011, CHINA
5492567
78
Disclosed is a method and apparatus for recovering acetic acid from an acetic acid/water waste stream which includes a dehydration column into which the stream is fed and a liquid-liquid extraction system for recovering acetic acid from the condensate of the overhead stream of the dehydration column. Optionally, low pressure and/or high pressure absorber systems are provided to process vapor and/or liquid streams associated with the recovery system and/or the plant in which the acetic acid is used to further the recovery of acetic acid and reduce atmospheric pollution.
4, Number
7
The present invention discloses a process for electroless plating a metal on the surface of almost all the common nonconductive material substrates by brushing or spraying composite chemical solutions onto said surface. When practicing the present invention, metal can be quickly deposited on the surface and firmly bound with the substrate. In addition, the composite chemical solutions
5491275 PROCESSFOR THE DEHYDROGENATION OF PARAFFINIC HYDROCARBONS Vora Bipin V; Imai Tamotsu STATES assigned to UOP
Darien, IL, UNITED
An improved process for the catalytic dehydrogenation of paraffinic hydrocarbons is disclosed. Feed paraffinic hydrocarbons are dehydrogenated by means of contacting the dehydrogenatable hydrocarbon with a dehydrogenation catalyst in a first dehydrogenation zone wherein the endothermic dehydrogenation reaction reduces the temperature of the resulting hydrocarbon stream containing dehydrogenated hydrocarbon compounds. The resulting effluent from the first dehydrogenation zone is then contacted with a hot hydrogen-rich gaseous stream having a temperature greater than the hydrocarbon stream to increase the temperature of the hydrocarbon stream and then introducing the resulting heated stream into a second dehydrogenation zone to produce additional dehydrogenated hydrocarbon compounds.
PCTNo. PCT/SE91/00573 Sec. 371 Date Jun. 9, 1993 Sec. 102(e) Date Jun. 9, 1993 PCT Filed Sep. 1, 199 1 PCT Pub. No. WO92/07007 PCT Pub. Date Apr. 30,199O. A method and an apparatus for continuous preheating of powdered starch in the preparation of modified starch are disclosed. The powdered starch is fed into a preheating circuit including an inlet opening for powdered starch in a conduit, and is pneumatically conveyed in the conduit by a hot air flow. When the powdered starch has been preheated by the air to the desired temperature, it is separated from the air in a separating device, whereupon the air is recycled in the circuit via a conduit, a fan and a heat exchanger for reheating the air, back to the inlet opening for conveying and preheating of a fresh quantity of powdered starch. If necessary, excess air can be removed from, or supplementary air be supplied to, the preheating circuit.
5492603 APPARATUS FOR RECOVERING ACETIC ACID FROM AQUEOUS STREAMS Gualy Ronald; Lamshing Wisto; Gentry Joseph C; Varela Fernando Arlington, TX, UNITED STATES assigned to Glitsch Inc
5491968 COMBUSTION SYSTEM AND METHOD FOR POWER GENERATION Shouman Ahmad R Las Cruces, NM, UNITED STATES A power generating combustion system and method are provided with a first stage combustion system that may include a wet oxidation reactor or a direct contact boiler and a second stage combustor including a stoichiometric burner to produce the substantially complete combustion of a wide range of fuels and mixtures of fuels to produce combustion products usable in generating power. The system design temperatures and pressures allow the substantially complete combustion of garbage, municipal and industrial waste and low quality fuels to generate power.
METHOD AND APPARATUS FOR CONTINUOUS HEATING OF POWDERED STARCH Ralvert Klas Karlshamn, SWEDEN assigned to Sveriges Starkelseproducenter Forening UPA
J. Cleaner
Prod. Volume
5492613 PROCESSFOR ELECTROLESS PLATING A METAL ON NON-CONDUCTIVE MATERIALS Zhang Shaoxian; Han Rongsheng; Zheng Chuanmin Dewai, Beijing 100011, CHINA
5492567
78
Disclosed is a method and apparatus for recovering acetic acid from an acetic acid/water waste stream which includes a dehydration column into which the stream is fed and a liquid-liquid extraction system for recovering acetic acid from the condensate of the overhead stream of the dehydration column. Optionally, low pressure and/or high pressure absorber systems are provided to process vapor and/or liquid streams associated with the recovery system and/or the plant in which the acetic acid is used to further the recovery of acetic acid and reduce atmospheric pollution.
4, Number
7
The present invention discloses a process for electroless plating a metal on the surface of almost all the common nonconductive material substrates by brushing or spraying composite chemical solutions onto said surface. When practicing the present invention, metal can be quickly deposited on the surface and firmly bound with the substrate. In addition, the composite chemical solutions