Patents Represented by Attorney, Agent or Law Firm Richmond, Hitchcock, Fish & Dollar
  • Patent number: 6691531
    Abstract: Natural gas liquefaction system having an optimum configuration of mechanical drivers and compressors. A heat recovery system can be employed with the liquefaction system to enhance thermal efficiency. A unique start-up system can also be employed.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: February 17, 2004
    Assignee: ConocoPhillips Company
    Inventors: Bobby D. Martinez, Shrikant R. Thakkar, Paul R. Hahn, Ned P. Baudat, Wesley R. Qualls
  • Patent number: 6479429
    Abstract: A process to produce a sorbent composition is provided. This process comprises: (a) contacting a zinc component, an alumina component, and a dispersant component, to form a mixture; and then (b) spray drying said mixture to form particles; and then (c) contacting said particles with a zinc compound, wherein said zinc compound is zinc oxide, or it is a compound convertible to zinc oxide, to form a sorbent composition. A process to produce a particulate composition that comprises zinc aluminate is provided. This comprises: (a) contacting a zinc component, an alumina component, and a dispersant component, to form a mixture; and then (b) spray drying said mixture to form said particulate composition.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: November 12, 2002
    Assignee: Phillips Petroleum Company
    Inventor: Gyanesh P. Khare
  • Patent number: 6463387
    Abstract: In accordance with the present invention, there is disclosed herein a method of seismic interpretation that is designed to improve the quality and speed with which an explorationist can pick and interpret a seismic section or volume. The instant invention utilizes unseeded picking to create a collection of patches or areas of similar-character reflector picks. The method is unsupervised initially and builds an output database that preferably contains the time and amplitude of each “assigned” event, an assigned event being a seismic reflection that is determined to be similar in some sense to its neighboring traces. Then, during subsequent interpretation the explorationist quickly builds an interpretation by utilizing and selecting from the pre-assembled collections of similar traces stored in the database.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: October 8, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Scott A. Runnestrand, Dennis B. Neff, Kevin H. Northey
  • Patent number: 6432873
    Abstract: A composition and method of making a strength enhanced composition are described. The composition comprises zinc oxide, silica and colloidal oxide solution. The colloidal oxide solution is utilized as a binding agent to provide a strength enhanced absorbent composition that can be utilized in an absorption process for the purpose of removing sulfur contaminants from fluid streams.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: August 13, 2002
    Inventors: Gyanesh P. Khare, Ralph E. Bonnell
  • Patent number: 6398949
    Abstract: A catalyst composition comprising a cobalt compound, a molybdenum compound, and a SAPO molecular sieve is used to hydrodesulfurize a hydrocarbon feed containing organic sulfur compounds.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: June 4, 2002
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake, Joseph E. Bares
  • Patent number: 6364015
    Abstract: The closure pressure (Pc) of a fracture generated in a subterranean formation is determined by creating a fracture in the formation, permitting the fracture to close, and performing post-closure pulse testing. The method is particularly applicable to soft formations (i.e. those having a rock plain-strain modulus (E′) of less than 800,000 psi).
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: April 2, 2002
    Assignee: Phillips Petroleum Company
    Inventor: Eric R. Upchurch
  • Patent number: 6350422
    Abstract: A process for removing hydrogen sulfide from a fluid stream by contacting a hydrogen sulfide-containing stream with a sorbent composition wherein said sorbent composition is produced by mixing at least one zinc component which is zinc oxide or a compound convertible to zinc oxide, at least one silica component where the silica component comprises silica or a compound convertible to silica, at least one colloidal metal oxide, and optionally at least one pore generator component so as to form a mixture, extruding the mixture, sphering the resulting extrudate to form spherical particles having a size of form about 0.5 to about 15 millimeters drying the resulting spherical particles, calcining the dried particles, steaming the resulting calcined particles, sulfiding the steamed particles by contacting them with sulfides or sulfur at a temperature of about 200° C. to 1400° C.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: February 26, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Gyanesh P. Khare, Donald R. Engelbert
  • Patent number: 6330512
    Abstract: This invention relates to the general subject of seismic exploration and, in particular, to seismic processing and methods for attenuating ground roll in land and ocean bottom seismic surveys. According to a first aspect of the instant invention, there is provided a method of attenuating non-primary reflection events such as ground roll in an unstacked gather. In the preferred embodiment, the collected seismic data will be analyzed to determine the approximate velocity at which the ground roll appears to travel through the section. As a next step, a single-velocity migration is performed on the seismic data at the selected velocity. Those seismic events that are moved by the migration past an “attenuation line” on the section are intentionally discarded or attenuated. Finally, a reverse single velocity migration is performed which places the reflectors—minus those events such as ground roll that have been attenuated—back at their original unmigrated times.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: December 11, 2001
    Assignee: Phillips Petroleum Company
    Inventors: James W. Thomas, John M. Hufford
  • Patent number: 6274031
    Abstract: A novel circulatable sorbent material suitable for use in a transport desulfurization system for removing sulfur from a fluid stream containing sulfur and the use thereof in such a transport desulfurization system. The transport desulfurization process utilizes a circulatable particulate material containing alumina, silica, zinc oxide and a metal oxide which is contacted with a fluid stream and thereafter separated and reused with a portion being regenerated.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: August 14, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Gyanesh P. Khare, Donald R. Engelbert, Bryan W. Cass
  • Patent number: 6265630
    Abstract: A process for the disproportionation of pentane to alkanes containing fewer carbon atoms per molecule and alkanes containing more atoms per molecule in the presence of a catalyst composition containing hydrogen fluoride (HF), titanium tetrafluoride (TiF4) and sulfolane.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: July 24, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Bruce B. Randolph, Marvin M. Johnson
  • Patent number: 6235955
    Abstract: A composition, a process for producing the composition, and a hydrocarbon conversion process for converting a hydrocarbon stream such as, for example, gasoline, to olefins and C6 to C8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The composition comprises a silylated catalyst which comprises a zeolite, a clay or silica, and a promoter. The process for producing the composition comprises the steps: (1) combining a zeolite with a clay or silica and a promoter under a condition sufficient to bind the clay to the zeolite to produce a clay-bound zeolite; (2) heating the clay-bound zeolite to produce a modified zeolite; and (3) silylating the modified zeolite with a silylating agent. The hydrocarbon conversion process comprises contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to an olefin and a C6 to C8 aromatic hydrocarbon.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: May 22, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Jianhua Yao, Charles A. Drake
  • Patent number: 6218328
    Abstract: A process in which a hydrocarbon feedstock containing n-butane is selectively dehydrogenated to a product containing butenes; a catalyst suitable for the selective dehydrogenation of a feedstock containing n-butane to provide a product containing butenes and a method for producing a catalyst suitable for the selective dehydrogenation of a feedstock containing n-butane to provide a product containing butenes are provided.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: April 17, 2001
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake
  • Patent number: 6208137
    Abstract: A chemometric method for predicting unknown properties in polymers using an on-line NMR system comprising the steps of producing a predictive data set and using the predictive data set to obtain unknown amounts of properties in a polymer. In a preferred embodiment, the process begins by obtaining free induction decays for samples of polypropylene with measured concentrations of xylene soluble polypropylene from a xylene soluble polypropylene data set to produce a free induction decay data set. The free induction decay data set is analyzed using PCA to produce a principle component data set. The principle component data set, the xylene soluble polypropylene data set, and the free induction decay data set, are analyzed using partial-least squares analysis to produce a training data set and the training data set is subsequently validated to produce a predictive data set.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: March 27, 2001
    Assignee: Philips Petroleum Company
    Inventors: Maziar Sardashti, Xiaonian Lai
  • Patent number: 6204664
    Abstract: A chemometric technique for predicting styrene content in Butadiene-Styrene resin (K-Resin) using an on-line NMR system comprising the steps of producing a predictive data set and using the predictive data set to obtain unknown concentrations of styrene in samples of K-Resin. The predictive data set is generated by obtaining free induction decays for samples of K-Resin with measured concentrations of styrene to produce a free induction decay data set; analyzing the free induction decay data set using PCA to produce a principle component data set; analyzing the styrene concentrations, the free induction decay data set and the principle component data set using PLS to produce a training data set; and validating the training data set to produce a predictive data set. Using the predictive data set involves the steps of obtaining free induction decays of samples of K-Resin with unknown concentrations of styrene and applying the free induction decays to the predictive data set to predict the unknown concentrations.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: March 20, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Maziar Sardashti, Xiaonian Lai
  • Patent number: 6201077
    Abstract: A process comprising polymerizing ethylene, or polymerizing ethylene and at least one other olefin, to produce a polymer is provided.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: March 13, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Joseph J. Bergmeister, Steven J. Secora, Gerhard Guenther, Elizabeth A. Benham, Max P. McDaniel
  • Patent number: 6198012
    Abstract: A catalyst composition suitable for the conversion of n-butane to butenes. The same catalyst composition that with chlorination is further suitable, when used in the conversion of n-butane, for the production of an increased amount of BTX (benzene-toluene-xylene) and greater selectivity to the production of isobutylenes than attained with the unchlorinated catalyst. A process for the preparation of catalyst compositions suitable for the conversion of n-butane. Use of the catalyst compositions in processes for the conversion of n-butane.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: March 6, 2001
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake
  • Patent number: 6194526
    Abstract: A process to produce a polymer is provided. The process comprises polymerizing monomers wherein the monomers comprise ethylene, 1-butene, and 1-hexene. The total amount of 1-butene and 1-hexene in the polymer is less than 10 mole percent of the polymer, and the mole ratio of 1-butene to 1-hexene is in a range of 4:1 to 9:1. The polymerizing is conducted in a loop reactor under slurry polymerization conditions with a diluent that comprises isobutane, where the isobutane is a majority of the diluent by weight. A catalyst that comprises titanium, magnesium, and halide and a cocatalyst that comprises organoaluminum are utilized. The polymerizing is conducted at a temperature from 73° C. to 85° C. The polymer produced has a heterogeneity index (Mw/Mn) from about 3 to about 7, a density from about 0.915 to about 0.925 grams per cubic centimeter, a melt index from about 0.25 to about 3.5 grams per ten minutes, and a shear ratio from about 24 to about 30.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: February 27, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Elizabeth A. Benham, Rhutesh K. Shah, Ashish M. Sukhadia, Joel L. Martin, Max P. McDaniel
  • Patent number: 6191064
    Abstract: A catalyst composition suitable for the conversion of n-butane to butenes. The same catalyst composition that with chlorination is further suitable, when used in the conversion of n-butane, for the production of an increased amount of BTX (benzene-toluene-xylene) and greater selectivity to the production of isobutylenes than attained with the unchlorinated catalyst. A process for the preparation of catalyst compositions suitable for the conversion of n-butane. Use of the catalyst compositions in processes for the conversion of n-butane.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: February 20, 2001
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake
  • Patent number: 6188517
    Abstract: A desktop based projector screen having an inner concave display surface upon which a video image or a series of images is projected with a sense of realism comparable with natural viewing of three-dimensional physical reality. The viewing surface combines three concave sections which are derived from solid figures including a dome, cylinder and a plane.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: February 13, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Dennis B. Neff, John R. Grismore, Steven B. Wyatt, William A. Lucas
  • Patent number: 6187984
    Abstract: A catalyst composition suitable for the conversion of n-butane to butenes. The same catalyst composition that with chlorination is further suitable, when used in the conversion of n-butane, for the production of an increased amount of BTX (benzene-toluene-xylene) and greater selectivity to the production of isobutylenes than attained with the unchlorinated catalyst. A process for the preparation of catalyst compositions suitable for the conversion of n-butane. Use of the catalyst compositions in processes for the conversion of n-butane.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: February 13, 2001
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake