Patents by Inventor Norman H. Scott

Norman H. Scott has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5849979
    Abstract: A process for the removal of trace quantities of polynuclear aromatic compounds from the vapor effluent of a hydrocarbon dehydrogenation zone containing normally gaseous olefinic hydrocarbons, trace mononuclear aromatic compounds and trace polynuclear aromatic compounds by contacting the hot vapor effluent of a hydrocarbon dehydrogenation zone with a cold lean liquid absorption stream to absorb at least a portion of the trace polynuclear aromatic compounds to produce a rich liquid absorption stream and a gaseous olefin-containing hydrocarbon stream having a reduced concentration of polynuclear aromatic compounds.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: December 15, 1998
    Assignee: UOP LLC
    Inventors: Tom N. Kalnes, Bryan K. Glover, Lester F. Smith, Norman H. Scott
  • Patent number: 5481060
    Abstract: A process for the removal of trace quantities of polynuclear aromatic compounds from the vapor effluent of a hydrocarbon dehydrogenation zone containing normally gaseous olefinic hydrocarbons, trace mononuclear aromatic compounds and trace polynuclear aromatic compounds by contacting the vapor effluent of a hydrocarbon dehydrogenation zone with a lean liquid absorption stream comprising at least one mononuclear aromatic compound to absorb at least a portion of the trace mononuclear aromatic compounds and the trace polynuclear aromatic compounds to produce a rich liquid absorption stream and a gaseous olefin-containing hydrocarbon stream having a reduced concentration of mononuclear aromatic compounds and polynuclear aromatic compounds. The rich liquid absorption stream is separated to produce a stream rich in mononuclear aromatic compounds and a stream comprising polynuclear aromatic compounds.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: January 2, 1996
    Assignee: UOP
    Inventors: Norman H. Scott, Joseph E. Zimmermann, Bryan K. Glover
  • Patent number: 5414168
    Abstract: Purified hydrogen is recovered from the effluent of a catalytic dehydrogenation zone using an integrated cold absorption process. The effluent, which contains olefinic hydrocarbons and hydrogen is compressed, cooled and contacted with a liquid absorbent. The purified hydrogen can be recycled to the dehydrogenation zone and the olefinic hydrocarbons are recovered as product. The present invention will recover higher purity hydrogen and liquefiable hydrocarbons more economically than prior art processes.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: May 9, 1995
    Assignee: UOP
    Inventor: Norman H. Scott
  • Patent number: 5345025
    Abstract: A process for the separation and recovery of the product stream resulting from the dehydrogenation of dehydrogentable hydrocarbons which process utilizes an integrated system for the recovery of liquid olefin product by use of a compression system, a pressure swing adsorption unit and a chiller system to concentrate the olefin poroduct.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: September 6, 1994
    Assignee: UOP
    Inventors: Michael J. Mitariten, Norman H. Scott
  • Patent number: 5227567
    Abstract: A process for the separation and recovery of the product stream resulting from the dehydrogenation of dehydrogenatable hydrocarbons which process utilizes a chiller system for the recovery of olefin product liquid and a pressure swing adsorption unit to concentrate the olefin product liquid which is not recovered by the chiller.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: July 13, 1993
    Assignee: UOP
    Inventors: Michael J. Mitariten, Norman H. Scott
  • Patent number: 5177293
    Abstract: A process for the separation and recovery of the products stream resulting from the dehydrogenation of dehydrogenatable hydrocarbons which process utilizes an integrated system for the recovery of liquid olefin product by the use of a compression system, a pressure swing adsorption unit and a chiller system to concentrate the olefin product.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: January 5, 1993
    Assignee: UOP
    Inventors: Michael J. Mitariten, Norman H. Scott
  • Patent number: 5008467
    Abstract: An integrated process of producing MTBE by the dehydrogenation of isobutane and the etherification of the resulting isobutene with methanol is simplified by directly charging the effluent of a dehydrogenation zone without prior separation to an etherification zone arranged to provide countercurrent contact of isobutene and the methanol reactants such that an MTBE product is recovered as a bottoms stream and a relatively isobutene-free overhead stream is recycled to the dehydrogenation zone. Overall separation facilities are simplified by only separating C.sub.3 hydrocarbons from the etherification zone product stream. This arrangement eliminates C.sub.3 separation facilities ahead of the etherification zone and reduces the quantity of C.sub.4 hydrocarbons that are received by the separation zone. The reaction zone may contain a series of beds arranged to further eliminate the carry over of isobutene to the separation facilities. This arrangement also allows a recovery of unreactive or unreacted C.sub.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: April 16, 1991
    Assignee: UOP
    Inventors: Bipin V. Vora, Norman H. Scott
  • Patent number: 4906788
    Abstract: A combined process for the dehydrogenation of C.sub.4 -C.sub.5 paraffins in a first zone and the etherification of olefins in a second zone improves efficiency by directly charging all but the lightest components of the dehydrogenation zone effluent to the etherification zone. This process is particularly suited for the production of gasoline boiling range ethers where an isoparaffin is dehydrogenated in a first zone to produce isoolefins. After separation of hydrogen and methane, the dehydrogenation zone effluent is charged along with methanol to an etherification zone for the production of MTBE. The etherification zone effluent is separated into at least three component streams comprising light ends, isoparaffins, and the ether product. Isoparaffins, separated from the etherification zone effluent, are recycled and combined with the feed to dehydrogenation zone.
    Type: Grant
    Filed: October 26, 1988
    Date of Patent: March 6, 1990
    Assignee: UOP
    Inventors: Norman H. Scott, Bipin V. Vora
  • Patent number: 4902848
    Abstract: A process for the dehydrogenation of a dehydrogenatable hydrocarbon feedstock having small quantities of higher boiling range hydrocarbons which comprises: (a) introducing the dehydrogenatable hydrocarbon feedstock into a fractionation zone having at least a portion of reflux to a fractionation column supplied by the dehydrogenatable hydrocarbon feedstock to provide a dehydrogenatable hydrocarbon stream having a reduced concentration of higher boiling range hydrocarbons and a stream comprising the higher boiling range hydrocarbons; (b) introducing the dehydrogenatable hydrocarbon stream having a reduced concentration of higher boiling range hydrocarbon recovered in step (a) into a dehydrogenation zone containing dehydrogenation catalyst and operated at dehydrogenation conditions to provide a hydrocarbon stream comprising dehydrogenated hydrocarbons and unconverted dehydrogenatable hydrocarbons; (c) separating the hydrocarbon stream comprising dehydrogenated hydrocarbons and unconverted dehydrogenatable hydroc
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: February 20, 1990
    Assignee: UOP
    Inventors: Norman H. Scott, Bipin V. Vora
  • Patent number: 4869808
    Abstract: A continuous process for hydrocarbon conversion wherein a hydrocarbon charge stock is catlytically converted in the presence of hydrogen at hydrocarbon conversion conditions including a first inlet temperature, a first hydrogen to hydrocarbon mole ratio and a first mass flow rate of hydrocarbon into a hydrocarbon product stream in a high space velocity moving bed radial flow reactor containing catalyst wherein at least a portion of the catalyst is pinned and thereby immobilized during high space velocity conversion which process comprises: (a) reducing the first inlet temperature of the reactor by about 10.degree. F. (5.5.degree. C.) to about 100.degree. F. (55.5.degree. C.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: September 26, 1989
    Assignee: UOP
    Inventors: Bipin V. Vora, Norman H. Scott
  • Patent number: 4806695
    Abstract: A combined process for the dehydrogenation of C.sub.3 -C.sub.5 paraffins in a first zone and the conversion of olefins in a second zone improves efficiency by directly charging all but the lightest components of the dehydrogenation zone effluent to the olefin conversion zone. This process is particularly suited for the production of gasoline boiling range ethers where an isoparaffin is dehydrogenated in a first zone to produce isoolefins. After separation of hydrogen and methane, the dehydrogenation zone effluent is charged along with a C.sub.1 -C.sub.5 alcohol to an etherification zone for the production of ether. The etherification zone effluent is separated into at least two component streams one comprising light ends, isoparaffins, and oxygenates and the other comprising an ether product. After passage through an alcohol recovery zone, the isoparaffins are separated from the other lighter recycled material and combined with the feed to dehydrogenation zone.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: February 21, 1989
    Assignee: UOP Inc.
    Inventors: Bipin V. Vora, Norman H. Scott
  • Patent number: 4778942
    Abstract: A process for the dehydrogenation of a dehydrogenatable hydrocarbon feedstock having small quantities of higher boiling range hydrocarbons which comprises: (a) introducing the dehydrogenatable hydrocarbon feedstock into a fractionation zone having at least a portion of reflux to a fractionation column supplied by a hereinafter-described recycle stream to provide a dehydrogenatable hydrocarbon stream having a reduced concentration of higher boiling range hydrocarbons and a stream comprising the higher boiling range hydrocarbons; (b) introducing the dehydrogenatable hydrocarbon stream having a reduced concentration of higher boiling range hydrocarbon recovered in step (a) into a dehydrogenation zone containing dehydrogenation catalyst and operated at dehydrogenation conditions to provide a hydrocarbon stream comprising dehydrogenated hydrocarbons and unconverted dehydrogenatable hydrocarbons; (c) separating the hydrocarbon stream comprising dehydrogenated hydrocarbons and unconverted dehydrogenatable hydrocarbo
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: October 18, 1988
    Assignee: UOP Inc.
    Inventors: Bipin V. Vora, Norman H. Scott
  • Patent number: 4720336
    Abstract: A catalytic reactor system for effecting the contact of a reactant stream with catalyst particles that are movable by gravity flow through the system, which comprises in combination: (a) a vertically elongated confined reaction chamber; (b) a catalyst loading chamber having a fixed volume located outside of and generally overhead of the reaction chamber whereby fresh catalyst particles gravitationally flow downward into the chamber; (c) concentrically spaced apart wall members which provide an annular-form catalyst-retaining section that is spaced inwardly from the wall of the reaction chamber to additionally provide a manifold space around the section and a cylindrical center pipe volume, the wall members having a perforate screen lower end and an imperforate upper end wherein the imperforate upper end defines a portion of the annular-form catalyst-retaining section having a volume of greater than about 100% of the catalyst loading chamber; (d) an imperforate cover means over the annular-form catalyst-retain
    Type: Grant
    Filed: September 10, 1986
    Date of Patent: January 19, 1988
    Assignee: UOP Inc.
    Inventors: Bipin V. Vora, Norman H. Scott
  • Patent number: 4663493
    Abstract: A process for dehydrogenating dehydrogenatable hydrocarbons is disclosed in which a heat providing stream is utilized to supply a portion of the endothermic heat requirement of the reaction zone feed thereby decreasing the temperature drop of the dehydrogenation zone material. As a result, the amount of deleterious side reactions such as thermal cracking is reduced, and an increase in conversion of the dehydrogenatable hydrocarbons is realized.
    Type: Grant
    Filed: June 12, 1985
    Date of Patent: May 5, 1987
    Assignee: UOP Inc.
    Inventors: Bipin V. Vora, Roy C. Berg, Norman H. Scott
  • Patent number: 4381417
    Abstract: A process for the catalytic dehydrogenation of low molecular weight paraffinic hydrocarbons is disclosed. The process is particularly directed to the separation of hydrogen from the olefinic hydrocarbon products and unreacted paraffinic hydrocarbons.
    Type: Grant
    Filed: December 4, 1981
    Date of Patent: April 26, 1983
    Assignee: UOP Inc.
    Inventors: Bipin V. Vora, Dennis E. O'Brien, Norman H. Scott
  • Patent number: 4235847
    Abstract: A distributor device for effecting the uniform distribution of a mixed-phase vapor/liquid reactant stream across the upper surface of a fixed-bed of catalyst particles. Mixed-phase reactants or components are first separated into a principally vapor-phase and a principally liquid-phase. These separated phases are then re-mixed in a manner which creates a vapor/liquid froth; the latter being re-distributed to the upper surface of the bed of catalyst particles. Briefly, the distributor comprises three chordal-form, catalyst-free volumes which are defined by the interior surface of the chamber and three pairs of spaced-apart, parallel chordal baffles.
    Type: Grant
    Filed: June 21, 1978
    Date of Patent: November 25, 1980
    Assignee: UOP Inc.
    Inventor: Norman H. Scott
  • Patent number: 4159937
    Abstract: Multiple-stage separation of a mixed-phase product effluent resulting from the hydrocracking and/or hydrorefining conversion of a hydrocarbonaceous charge stock. Reaction product effluent is initially separated in a high temperature, high pressure first separation zone, the vapor phase from which is cooled and separated in a second separation zone to provide a hydrogen-rich vaporous phase. The liquid phase from the second separation zone is increased in temperature and separated in a third separation zone at a substantially lower pressure. At least a portion of the liquid phase from the third separation zone is combined with the vaporous phase from the first separation zone prior to cooling and separation in the second separation zone. A savings of about 10.0% in hydrogen loss is realized or about 12 standard cubic feet per barrel of charge stock.
    Type: Grant
    Filed: August 30, 1978
    Date of Patent: July 3, 1979
    Assignee: UOP Inc.
    Inventor: Norman H. Scott
  • Patent number: 4159935
    Abstract: Hydrocarbonaceous black oils are converted into lower-boiling hydrocarbons via a process which utilizes two separate catalytic reactor systems interconnected by way of a multiple-stage separation facility. Fresh feed charge stock is reacted in the first reactor system in admixture with hydrogen recovered from the second reactor system. Conversely, unconverted material from the first reactor system is reacted in the second system with make-up hydrogen and all the recycle hydrogen recovered from both reactor systems.
    Type: Grant
    Filed: August 30, 1978
    Date of Patent: July 3, 1979
    Assignee: UOP Inc.
    Inventor: Norman H. Scott
  • Patent number: 4138327
    Abstract: A method and distributor device for effecting the uniform distribution of a mixed-phase vapor/liquid reactant stream across the upper surface of a fixed-bed of catalyst particles. Mixed-phase reactants or components are first separated into a principally vapor-phase and a principally liquid-phase. These separated phases are then re-mixed in a manner which creates a vapor/liquid froth; the latter being re-distributed to the upper surface of the bed of catalyst particles. Briefly, the distributor comprises three annular-form, catalyst-free volumes which are defined by the interior surface of said chamber and three cylindrical walls in concentric relationship therewith.
    Type: Grant
    Filed: November 4, 1977
    Date of Patent: February 6, 1979
    Assignee: UOP Inc.
    Inventor: Norman H. Scott
  • Patent number: 4133645
    Abstract: A method and distributor device for effecting the uniform distribution of a mixed-phase vapor/liquid reactant stream across the upper surface of a fixed-bed of catalyst particles. Mixed-phase reactants or components are first separated into a principally vapor-phase and a principally liquid-phase. These separated phases are then re-mixed in a manner which creates a vapor/liquid froth; the latter being re-distributed to the upper surface of the bed of catalyst particles. Briefly, the distributor comprises three annular-form, catalyst-free volumes which are defined by the interior surface of said chamber and three cylindrical walls in concentric relationship therewith.
    Type: Grant
    Filed: May 4, 1978
    Date of Patent: January 9, 1979
    Assignee: UOP Inc.
    Inventor: Norman H. Scott