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Select: All | None

Select: All | None

APPARATUS AND METHOD FOR UPGRADING COAL

University of Alberta

A method of upgrading coal is disclosed, the method comprising: subjecting the coal to a hydrothermal dewatering process at a temperature and a pressure above ambient conditions to produce dewatered coal; removing ash tailings from the dewatered coal to produced reduced ash dewatered coal; and producing a coal water slurry with the reduced ash dewatered coal. An apparatus for upgrading coal is also disclosed, the apparatus comprising: a hydrothermal dewatering reactor connected to receive...

METAMATERIAL BASED EMITTERS FOR THERMOPHOTOVOLTAICS

University of Alberta

A thermal emitter is provided, having a periodic structure operating in the limit of bulk metamaterial responses; the periodic structure thermally emitting at high temperatures in a specified narrow wavelength of a predeterrmined resonance.

CARBONATE-BONDED CONSTRUCTION PRODUCTS FROM STEEL-MAKING RESIDUES AND METHOD FOR MAKING THE SAME

McGill University

A building product is made from granular material and a binder that includes steel slag. A process for making the building product includes combining the granular material and the binder and then curing the combined granular material and binder with carbon dioxide. A building material includes a mixture of steel slag and a silica-rich material. The steel slag and silica-rich material is treated by heating. The silica-rich material may be waste glass and/or fly ash. A process for making the...

SYSTEMS AND METHODS FOR USE OF WATER WITH SWITCHABLE IONIC STRENGTH

Queen's University

Methods and systems for use of switchable water, which is capable of reversibly switching between an initial ionic strength and an increased ionic strength, is described. The disclosed methods and systems can be used, for example, in distillation-free removal of water from solvents, solutes, or solutions, desalination, clay settling, viscosity switching, etc. Switching from lower to higher ionic strength is readily achieved using low energy methods such as bubbling with C02, CS2 or COS or...

FUNCTIONAL PROTEIN STRUCTURES AND METHODS OF MAKING AND USING SAME

University of Alberta

Functional three-dimensional constructs incorporating biological materials produced by additive manufacturing techniques are provided. The biological material can be a protein that is incorporated into the three-dimensional construct via a light-inducible functional group and 0 retains its native function. In one embodiment, the biological material is bacteriorhodopsin and the construct incorporates a silver inorganic catalyst to produce hydrogen upon exposure to light.

TEMPERATURE SWITCHABLE POLYMERS FOR FINE COAL DEWATERING

University of Alberta

A flocculating agent that comprises a complex of a metal salt and multiple strands of a temperature sensitive polymer. A process for separating coal fines from an aqueous liquid using a flocculent having a critical flocculation temperature, said critical flocculation temperature being the temperature below which flocculent is hydrophilic and forms floccules with fines and above which the flocculent is hydrophobic, which comprises adding to the aqueous liquid an effective amount of the...

METHODS AND MICROORGANISMS FOR THE PRODUCTION OF 1,3-BUTANEDIOL

University of Toronto

A non-naturally occurring microorganism having a 1,3-BDO pathway is provided. The microorganism expresses at least one of the following 1,3-BDO pathway enzymes: an aldolase that catalyzes condensation of two acetaldehydes to produce 3-hydroxybutanal; and an aldo- ketoreductase, oxidoreductase, aldehyde reductase or alcohol dehydrogenase that reduces 3- hydroxybutanal to 1,3-BDO. The organism may further express one or more enzymes for producing acetaldehyde. A biosynthetic process involves...

DETECTION AND RECOVERY OF CHEMICAL ELEMENTS FROM FLUIDS WITH TECTRABRACHION

University of Manitoba

The present disclosure provides uses and methods for using compositions comprising a tetrabrachion protein from Staphylothermus marinus or a fragment thereof for detecting and/or recovering a chemical element from a solution or a suspension. The fragment of the tetrabrachion protein includes the right handed coiled coil (RHCC).

METHOD FOR PREPARATION OF ACTIVATED CARBON

University of Alberta

A method of preparing activated carbon, is disclosed, comprising: exposing carbonaceous material to microwave radiation in the presence of water to produce activated carbon..

METHODS AND SYSTEMS FOR THE QUANTITATIVE CHEMICAL SPECIATION OF HEAVY METALS AND OTHER TOXIC POLLUTANTS

McGill University

This invention relates to systems and methods for measuring quantitatively multiple species or heavy metals, including mercury, and other toxic pollutants. More specifically, the systems and methods of the invention allows for determination of the analytes even at very low concentration, through concentration on a collection interface, desorption and analysis by mass spectrometry. The invention also provides for a portable device or kit for modifying an existing mass spectrometer.

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