| Patent Number |
Title Of Patent |
Date Issued |
| 7431830 |
Compact slurry preparation system for oil sand |
October 7, 2008 |
| Staged crushing combined with water addition and mixing is practiced at the mine site to prepare an oil sand slurry ready for hydrotransport. More particularly, as-mined oil sand is crushed to conveyable size (e.g. --24'') using a mobile crusher. The pre-crushed ore product is conveyed |
| 7025874 |
Nozzle/mixer assembly |
April 11, 2006 |
| A bitumen/steam pre-mixer and atomizing nozzle combine to produce a jet of minute liquid droplets (bitumen) in carrier gas (steam). The jet is injected into a draft tube mixer positioned in a fluid bed of hot coke particles suspended in steam and contained within a fluid coking reactor. |
| 6821060 |
Jet pump system for forming an aqueous oil sand slurry |
November 23, 2004 |
| As-mined oil sand is crushed to -5 inch by a sequentially arranged pair of double roll crushers. The crushed oil sand is fed into a hopper feeding a jet pump. Water or recycled slurry is fed under pressure as motive fluid to the jet pump. The motive fluid jet(s) produced internally by th |
| 6746599 |
Staged settling process for removing water and solids from oils and extraction froth |
June 8, 2004 |
| Diluent-diluted bitumen froth containing bitumen and naphtha diluent, hydrocarbons, water, sand and fines (collectively "dilfroth") is fed into a vapor-tight gravity settler (`splitter`) and temporarily retained to produce a bottom layer of tails comprising sand and middlings, a rag laye |
| 6746596 |
Process for reducing sulphur emissions from a fluidized bed coke burner |
June 8, 2004 |
| The process has to do with a circuit involving a fluidized bed coker reactor working in tandem with a fluidized bed coke burner. The burner is operated at a reduced temperature in the range 550.degree. C.-630.degree. C. Simultaneously, the coke circulation rate is increased to ensure the |
| 6391190 |
Mechanical deaeration of bituminous froth |
May 21, 2002 |
| Aerated bitumen froth obtained from oil sands must be deaerated so that it can be pumped through a pipeline. Mechanical shearing is effective to deaerate bitumen froth to an air content of below 10 volume percent. Mechanical deaeration of bitumen froth can be achieved either by passing |
| 6214213 |
Solvent process for bitumen seperation from oil sands froth |
April 10, 2001 |
| A paraffinic solvent is mixed with bitumen froth containing water and solids. Sufficient solvent is added to induce inversion when the mixture is subjected to gravity or centrifugal forces. The emulsion reports to the water phase and a dry bitumen product virtually free of inorganic soli |
| 6119870 |
Cycloseparator for removal of coarse solids from conditioned oil sand slurries |
September 19, 2000 |
| A large capacity cyclonic separator is used for desanding a conditioned aqueous oil sand slurry comprising aerated bitumen, water and sand to produce pumpable, pipelineable lean froth and sand tailings. The cyclone separator is a vessel which forms an elongated cylindrical separation |
| 6027056 |
Slurrying oil sand for hydrotransport in a pipeline |
February 22, 2000 |
| A mixer circuit, in the form of a vertically oriented stack of components, functions to slurry oil sand with water in preparation for pumping through a pipeline. The oil sand is initially dropped from the end of a conveyor. It is contacted in mid-air with a stream of water to distribute |
| 6007708 |
Cold dense slurrying process for extracting bitumen from oil sand |
December 28, 1999 |
| Average grade oil sand is mixed with water to produce a low temperature (20-35.degree. C.), dense (1.4-1.65 g/cc) slurry. The slurry is pumped through a pipeline for sufficient time to condition it. Air is injected into the slurry after the last pump. The slurry density is adjusted to |
| 6003789 |
Nozzle for atomizing liquid in two phase flow |
December 21, 1999 |
| Mixing means, for producing a flow mixture of oil and steam, is combined with an atomizing nozzle to provide a nozzle assembly which produces a jet of very fine oil droplets. The nozzle assembly is used in conjunction with a reactor, such as a fluidized bed coker. The mixing means compri |
| 5988198 |
Process for pumping bitumen froth through a pipeline |
November 23, 1999 |
| A process for transporting deaerated bitumen froth in a pipeline is described which comprises injecting water into the pipeline prior to deaerated bitumen froth injection to wet the interior walls of the pipeline. The deaerated bitumen froth is then injected into the pipeline at a cr |
