Patents Assigned to Alberta Research Council
  • Publication number: 20080079943
    Abstract: A method for obtaining a reflectance property indication of a sample which includes making a reflectance measurement of the sample and correcting the reflectance measurement in order to obtain the reflectance property indication. The reflectance measurement represents an observed reflectance of the sample, the reflectance property indication represents a standardized reflectance of the sample, and correcting the reflectance measurement accounts for a difference between the standardized reflectance and the observed reflectance. An apparatus for making a reflectance measurement of a sample which includes a housing defining a viewing port, a temperature control mechanism for controlling the temperature within the interior of the housing, and an optical reflectometer contained within the interior of the housing. The reflectometer has a measurement direction and is movable within the housing so that the measurement direction can be selectively aligned with the viewing port.
    Type: Application
    Filed: September 27, 2006
    Publication date: April 3, 2008
    Applicant: ALBERTA RESEARCH COUNCIL INC.
    Inventors: Wei Li, Ross Chow, Jim Boyd Curtis, Xiaocai Joyce Chen
  • Publication number: 20080047709
    Abstract: A method of blocking a high permeability channel in communication with a wellbore, including the steps of introducing an amount of an unreinforced gel into the high permeability channel via the wellbore and introducing an amount of a reinforced gel comprising an amount of a reinforcing material into the high permeability channel via the wellbore. The method may further include the step, after introducing the unreinforced gel and the reinforced gel into the high permeability channel, of introducing an amount of a chaser fluid into the wellbore.
    Type: Application
    Filed: September 13, 2005
    Publication date: February 28, 2008
    Applicant: Alberta Science and research Authority c/o Alberta Research Council Inc.
    Inventors: Bernard Tremblay, Haibo Huang, Ron Sawatzky, Douglas Lillico, Zhihong (John) Zhou
  • Patent number: 7328743
    Abstract: A modified toe-to-heel waterflooding (TTHW) process is provided for recovering oil from a reservoir in an underground formation. After establishing the conventional TTHW waterflood, the process includes placing a chemical blocking agent at the watered out producing toe portion of the horizontal leg of the production well to create a blockage in the producing toe portion and to create a new producing toe portion in an open portion of the horizontal leg adjacent the blockage through which most of the production takes place. Production is then continued through the new producing toe portion and the open portion of the horizontal leg of the production well. These blocking and producing steps can be continued to progressively block producing toe portions in a direction toward the vertical pilot portion of the production well.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: February 12, 2008
    Assignee: Alberta Research Council, Inc.
    Inventors: Alex Turta, Fred Wassmuth, Vijay Shrivastava, Ashok Singhal
  • Patent number: 7326456
    Abstract: A low density oriented strand board has an average density of less than about 1.5 times the density of wood species used in the board and a homogenous vertical density profile. Low density OSB may be formed by preheating the wood finish prior to pressing, controlling the moisture content such that the core layer has a higher moisture content than the face layers, or a combination of pre-heating and moisture content control.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: February 5, 2008
    Assignee: Alberta Research Council Inc.
    Inventors: Liheng Chen, Robert W. F. Wellwood
  • Publication number: 20080004438
    Abstract: A synthetic procedure for the preparation of non-animal based lactose from 4?-epimeric analogue of lactose by use of orthogonal protecting groups, formation of a suitable leaving group at the 4?-position, stereochemical inversion by nucleophilic attack and deprotection.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Applicant: ALBERTA RESEARCH COUNCIL INC.
    Inventors: Donna DAY, Minghui DU, Roberto MENDEZ, Darol MAUNDER
  • Publication number: 20070243444
    Abstract: This invention relates to a solid oxide fuel cell system comprising at least one longitudinally extending tubular solid oxide fuel cell and a longitudinally extending heater mounted in thermal proximity to the fuel cell to provide heat to the fuel cell during start up and during operation as needed. The heater and fuel cell can be encased within a tubular thermal casing; the inside of the casing defines a first reactant chamber for containing a first reactant, such as oxidant. The fuel cell comprises a ceramic solid state electrolyte layer and inner and outer electrode layers concentrically arranged around and sandwiching the electrolyte layer. The outer electrode layer is fluidly communicable with the first reactant, and the inner electrode layer is fluidly isolated from the first reactant and fluidly communicable with a second reactant, such as fuel.
    Type: Application
    Filed: February 11, 2005
    Publication date: October 18, 2007
    Applicant: ALBERTA RESEARCH COUNCIL, INC.
    Inventors: Rong Zheng, Gary Kovacik, Hongsang Rho, Partho Sarkar, Luis Yamarte, Mark Richardson
  • Patent number: 7258936
    Abstract: This invention relates to controlling a load-following solid oxide fuel cell system such that the fuel cells in the system are operating within an acceptable electrochemical reaction efficiency. The system has a controller that is programmed to detect a load change on a fuel cell stack, and when the load decreases, reduces the fuel flow rate to the stack or deactivates one or more fuel cells in the stack such that the stack operates within an acceptable electrochemical reaction efficiency range corresponding to the decreased load; and when the load increases, the controller increases the fuel flow rate to the stack or activates fuel cells in the stack such that the stack operates within the acceptable electrochemical reaction efficiency range.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: August 21, 2007
    Assignee: Alberta Research Council, Inc.
    Inventors: Rong Zheng, Hongsang Rho, Luis Yamarte, Gary J. Kovacik, Partha Sarkar
  • Publication number: 20070187633
    Abstract: An improvement in a PVT apparatus, which improvement includes a fluid path model having a fluid path and a sampling section, wherein the depth of the fluid path within the sampling section is substantially uniform and is less than about 100 ?m. The apparatus may be configured to provide a micron-scale slim tube which may be used in a manner similar to a conventional slim tube apparatus. A method for characterizing an interfacial property of a dispersion such as, for example, miscibility of a first fluid and a second fluid as a function of pressure. The method includes collecting sets of transmittance images representing transmittance of electromagnetic radiation through the dispersion, generating values of a general interfacial property factor from the transmittance images, and characterizing the interfacial property using the values of the general interfacial property factor.
    Type: Application
    Filed: February 14, 2006
    Publication date: August 16, 2007
    Applicant: Alberta Research Council Inc.
    Inventors: Douglas Fisher, Marcel Girard
  • Publication number: 20070163432
    Abstract: A method for treating a gas stream containing an acid gas, including immersing a permeable membrane having a plurality of pores in an absorption liquid containing a reactant chemical, and passing the gas stream through the pores in the permeable membrane so that the gas stream forms gas bubbles which float up through the absorption liquid and so that the acid gas in the gas stream reacts with the reactant chemical in the absorption liquid, thereby separating the acid gas from the gas stream. A gas absorption apparatus, including a housing adapted to hold an absorption liquid containing a reactant chemical, and a permeable membrane having a plurality of pores contained within the housing and adapted to be immersed in the absorption liquid.
    Type: Application
    Filed: November 27, 2006
    Publication date: July 19, 2007
    Applicant: ALBERTA RESEARCH COUNCIL INC.
    Inventor: Hongqi Yuan
  • Patent number: 7235321
    Abstract: This invention relates to a fuel cell system comprising an outer tubular solid oxide fuel cell, a solid phase porous matrix located inside the outer fuel cell and attached to its inner electrode layer, and at least one inner tubular solid oxide fuel cell embedded in the matrix. The outer fuel cell has an inner electrode layer configured to receive a first reactant fluid, an outer electrode layer configured to receive a second reactant fluid, and an electrolyte layer sandwiched between the electrode layers. The inner fuel cell has an outer electrode layer configured to receive the first reactant fluid, an inner electrode layer configured to receive the second reactant fluid, and an electrolyte layer sandwiched between the inner and outer electrode layers. The matrix has sufficient mechanical strength to support the inner fuel cell and sufficient porosity to enable the first reactant fluid to flow through the matrix to the inner and outer fuel cell respectively.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: June 26, 2007
    Assignee: Alberta Research Council, Inc.
    Inventors: Partho Sarkar, Hongsang Rho, Lorne Johanson
  • Publication number: 20070134804
    Abstract: A method for analyzing a dispersion such as an oil/solid suspension or an oil/water emulsion. A set of original domain data is collected relating to an attribute of the dispersion, such as light transmittance therethrough. The set of original domain data is then transformed into a transformed set of original domain data which is in the frequency domain. Any transformation technique, such as a fast Fourier transform, may be used to transform the original domain data from a first domain, such as a time or spatial domain, into the frequency domain. The dispersion is then characterized using the transformed set of original domain data. One or more frequency domain spectra may be generated from the transformed set of original domain data, which frequency domain spectra express a parameter relating to the attribute of the dispersion as a function of frequency, in which case the characterizing step may be performed using the frequency domain spectra.
    Type: Application
    Filed: October 12, 2004
    Publication date: June 14, 2007
    Applicant: Alberta Research Council Inc.
    Inventors: Douglas Fisher, Marcel Girard, Haibo Huang
  • Publication number: 20070110632
    Abstract: A water supply sub-system for connection to a water quality analyzer unit includes a water purification unit co-located with the water quality analyzer unit. Raw reference water is introduced into the water purification unit and passed along a flow path including at least a water purification element including a reverse osmosis unit. An automated reference water valve provides purified reference water to the water quality analyzer unit at predetermined time intervals for use in instrumental zeroing events. Low volume but high efficiency water purification elements are used advantageously to purify small volumes of water at regular intervals, thereby eliminating the need to maintain a reservoir of water for instrumental zeroing purposes.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 17, 2007
    Applicant: Alberta Research Council Inc.
    Inventors: Theodore Garver, Paul Pastushak
  • Publication number: 20070068674
    Abstract: A modified toe-to-heel waterflooding (TTHW) process is provided for recovering oil from a reservoir in an underground formation. After establishing the conventional TTHW waterflood, the process includes placing a chemical blocking agent at the watered out producing toe portion of the horizontal leg of the production well to create a blockage in the producing toe portion and to create a new producing toe portion in an open portion of the horizontal leg adjacent the blockage through which most of the production takes place. Production is then continued through the new producing toe portion and the open portion of the horizontal leg of the production well. These blocking and producing steps can be continued to progressively block producing toe portions in a direction toward the vertical pilot portion of the production well.
    Type: Application
    Filed: September 22, 2006
    Publication date: March 29, 2007
    Applicant: ALBERTA RESEARCH COUNCIL, INC.
    Inventors: Alex Turta, Fred Wassmuth, Vijay Shrivastava, Ashok Singhal
  • Publication number: 20070062234
    Abstract: A method of treatment of wood ash residue. A first step involves wetting the wood ash residue. A second step involves reacting the wetted wood ash residue with carbon dioxide gas. Mineral oxides and hydroxides are converted to carbonates, thereby reducing the caustic nature of the wood ash residue.
    Type: Application
    Filed: August 2, 2006
    Publication date: March 22, 2007
    Applicants: Alberta Research Council Inc., Biomass Technologies Inc.
    Inventors: Richard Johnson, Richard Kuzub, Albert Liem, Clifford Ronden
  • Patent number: 7182848
    Abstract: The present invention provides methods for producing hollow ceramic membranes by electrophoretic deposition. The hollow ceramic membranes may have a small cross-sectional area of about 1.0×10?5 mm2 to about 25 mm2. The cross-sectional configuration of the hollow ceramic membranes may be any geometry such as circular, square, rectangular, triangular or polygonal. The hollow ceramic membranes produced by the methods of the present invention may have multiple layers but always the innermost layer, or the first deposited layer is porous and made by electrophoretic deposition. Subsequent layers may be porous or non porous and deposited before or after sintering the first layer. If it is deposited after sintering, it may require additional sintering steps. Additional layers may be deposited by further electrophoretic deposition, sol-gel coating, dip coating, vacuum casting, brushing, spraying or other known techniques.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: February 27, 2007
    Assignee: Alberta Research Council, Inc.
    Inventor: Partha Sarkar
  • Patent number: 7141407
    Abstract: The present invention relates to the use of a strain of Burkholderia andropogonis for controlling the growth of a weed belonging to the order Caryophyllales. The present invention also provides a method for suppressing weed growth, comprising applying a strain of Burkholderia andropogonis to a weed belonging to the order Caryophyllales. Also provided is a biocontrol composition for controlling the growth of a weed belonging to the order Caryophyllales, the composition comprising a strain of Burkholderia andropogonis, and a suitable medium.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: November 28, 2006
    Assignee: Alberta Research Council Inc.
    Inventors: Wenming Zhang, Michelle Sulz
  • Publication number: 20060147699
    Abstract: This invention relates to a composite coating for protection of metal, glass and ceramic substrates and a method of producing same. The coating process consists of: depositing a ceramic porous coating made of a ceramic filler and a binding phase consisting of a finely divided glass and a ceramic sol; sintering the coating by a heat treatment up to 700° C.; and, optionally sealing the porous ceramic coating with an inorganic sealant or an organic sealant, or a combination thereof.
    Type: Application
    Filed: October 3, 2003
    Publication date: July 6, 2006
    Applicant: Alberta Research Council Inc.
    Inventors: Partho Sarkar, Lorne Johanson, Florin Esanu
  • Patent number: 7041840
    Abstract: A lipid composition includes triacylglycerols that include unsaturated fatty acids such as alpha linolenic acid and antioxidant moeities such as pyruvic acid.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: May 9, 2006
    Assignee: Alberta Research Council Inc.
    Inventor: Neena Gandhi
  • Patent number: 7014768
    Abstract: A process for removal and recovery of nutrients and recycling of water from digested manure or other organic wastes. A first step involves separating waste from an anaerobic digester into digested liquids, digested solids, and biogas. A second step involves precipitating solids from the digested liquids. A third step involves stripping ammonia from the digested liquids. A fourth step involves injecting an exhaust stream of carbon dioxide drawn from the co-generator into the digested liquids to reduce the pH and raise the temperature of the digested liquid. A fifth step involves recycling the digested liquids back to the anaerobic digester for use in diluting in coming solid wastes. A sixth step involves passing the excess ammonia stripped from the digested liquid through the digested solids to recover nitrogen through aborption with the resultant digested solids being usable as a biofertilizer with a high nitrogen content. A seventh step involves capturing the biogas for use in a co-generation system.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: March 21, 2006
    Assignee: Alberta Research Council Inc.
    Inventors: Xiaomei Li, Le Zeng, Earl August Jenson
  • Publication number: 20060051643
    Abstract: This invention relates to a method of manufacturing a metal-supported tubular micro-solid oxide fuel cell, and a fuel cell made from such method. The method comprises the steps of coating a wooden substrate member with a conductive substrate layer, coating the substrate layer with an inner electrode layer, coating the inner electrode layer with an electrolyte layer, drying and sintering the coated substrate member such that the substrate member combusts, coating the electrolyte layer with an outer electrode layer, and then drying and sintering the layers.
    Type: Application
    Filed: July 24, 2003
    Publication date: March 9, 2006
    Applicant: Alberta Research Council Inc.
    Inventors: Partho Sarkar, Hongsang Rho, Lorne Johanson, Luis Yamarte