Specified Mixing Procedure Patents (Class 585/955)
  • Method of making linear alkylbenzenes
    Patent number: 8455706
    Abstract: A method of producing a linear alkylbenzene that includes introducing an olefin into an aromatic stream to form a mixture; processing the mixture in a shear device at a shear rate greater than about 20,000 s?1 to form a dispersion; and reacting the dispersion in the presence of a catalyst in a reactor vessel to form a linear alkylbenzene product stream, wherein the reactor vessel is maintained at a bulk reaction temperature in the range of about 0° C. to about 60° C.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: June 4, 2013
    Assignee: H R D Corporation
    Inventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
  • Method of making linear alkylbenzenes
    Patent number: 8278494
    Abstract: Methods and systems for the production of linear alkylbenzenes are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and mixing of one or more olefins (e.g. propylene) with an aromatic. The high shear device may allow for lower reaction temperatures and pressures and may also reduce reaction time with existing catalysts.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: October 2, 2012
    Assignee: H R D Corporation
    Inventors: Abbas Hassan, Ebrahim Bagherzadeh, Rayford G. Anthony, Gregory Borsinger, Aziz Hassan
  • Modified riser-reactor reforming process
    Patent number: 5770045
    Abstract: A catalytic reforming process uses a riser reactor with multiple catalyst injection points to obtain high aromatics yields from a naphtha feedstock. Product from the riser reactor typically is discharged into a fluidized-reforming reactor, in which the reforming reaction is completed and catalyst is separated from hydrogen and hydrocarbons. Hydrocarbons from the reactor are separated to recover an aromatized product. Catalyst is regenerated to remove coke and reduced for reuse in the reforming process.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: June 23, 1998
    Assignee: UOP
    Inventors: Christopher David Gosling, Scott Yu-Feng Zhang, Paula L. Bogdan
  • Process and apparatus for promoting annularly uniform flow
    Patent number: 5723041
    Abstract: An apparatus is described for promoting annularly uniform flow in a reaction space of a mixed phase reactor. The apparatus defines ports which face a shared direction relative to the axis. The apparatus is useful in a process, also described, in which fluid emerging from the ports creates a turning moment which rotates fluid in a plenum adjacent the reaction space.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: March 3, 1998
    Assignee: Amoco Corporation
    Inventors: Narasimhan Devanathan, Peter J. Klomans, William B. VanderHeyden
  • Modified riser-reactor reforming process
    Patent number: 5565090
    Abstract: A catalytic reforming process uses a riser reactor with multiple catalyst injection points to obtain high aromatics yields from a naphtha feedstock. Product from the riser reactor typically is discharged into a fluidized-reforming reactor, in which the reforming reaction is completed and catalyst is separated from hydrogen and hydrocarbons. Hydrocarbons from the reactor are separated to recover an aromatized product. Catalyst is regenerated to remove coke and reduced for reuse in the reforming process.
    Type: Grant
    Filed: November 25, 1994
    Date of Patent: October 15, 1996
    Assignee: UOP
    Inventors: Christopher D. Gosling, Scott Y. Zhang, Paula L. Bogdan
  • High fire point dielectric insulating fluid having a flat molecular weight distribution curve
    Patent number: 4284522
    Abstract: A liquid composition and method for forming the composition, the composition being intended for use in an oil-filled electrical apparatus to minimize the detrimental effects that can occur during high fault conditions which oil composition is biodegradable and formed from natural hydrocarbons and synthetic hydrocarbons which when combined form a flat pseudo-rectangular molecular weight distribution curve.
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: August 18, 1981
    Assignee: RTE Corporation
    Inventor: John H. Olmsted
  • Alkylation process
    Patent number: 4174357
    Abstract: The bottom effluent from an isostripper of an HF alkylation system is combined with the bottom effluent consisting essentially of isopentanes and heavier hydrocarbons from a debutanizer column such as to produce an alkylate product stream under the provision that the mixing of the two streams is achieved in response to a signal representing the vapor pressure of the mixed streams.
    Type: Grant
    Filed: February 2, 1976
    Date of Patent: November 13, 1979
    Assignee: Phillips Petroleum Company
    Inventor: Charles C. Chapman
  • Alkaline treatment of liquid propane containing HF
    Patent number: 4162273
    Abstract: Liquid propane containing HF is admixed in an eductor or sparger with aqueous alkaline solution, e.g., 2-5 percent aqueous NaOH maintained in a treating vessel, the eductor or sparger being located within a body of said alkaline treating agent in said vessel, thus to avoid explosion.
    Type: Grant
    Filed: January 10, 1978
    Date of Patent: July 24, 1979
    Assignee: Phillips Petroleum Company
    Inventor: Frank W. Skraba