CA2177018A1 - Method of separating oil and bitumen from sand - Google Patents
Method of separating oil and bitumen from sandInfo
- Publication number
- CA2177018A1 CA2177018A1 CA002177018A CA2177018A CA2177018A1 CA 2177018 A1 CA2177018 A1 CA 2177018A1 CA 002177018 A CA002177018 A CA 002177018A CA 2177018 A CA2177018 A CA 2177018A CA 2177018 A1 CA2177018 A1 CA 2177018A1
- Authority
- CA
- Canada
- Prior art keywords
- tank
- sand
- layer
- aqueous slurry
- bitumen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
- C10G1/047—Hot water or cold water extraction processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/02—General arrangement of separating plant, e.g. flow sheets specially adapted for oil-sand, oil-chalk, oil-shales, ozokerite, bitumen, or the like
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
- C10G1/045—Separation of insoluble materials
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
A method of separating oil and bitumen from sand.
Firstly, mixing sand containing oil and bitumen with water in a tank to form an aqueous slurry. Secondly, adding a water solution of hydrogen peroxide to the aqueous slurry and agitating the aqueous slurry. The hydrogen peroxide serves as a catalyst initiating a vigorous reaction that separates the aqueous slurry into an upper froth layer, a middle clean water layer and a lower clean sand and clay layer. Thirdly, skimming the upper froth layer containing oil and bitumen and removing the lower clean sand layer and the middle clean water layer from the tank.
Firstly, mixing sand containing oil and bitumen with water in a tank to form an aqueous slurry. Secondly, adding a water solution of hydrogen peroxide to the aqueous slurry and agitating the aqueous slurry. The hydrogen peroxide serves as a catalyst initiating a vigorous reaction that separates the aqueous slurry into an upper froth layer, a middle clean water layer and a lower clean sand and clay layer. Thirdly, skimming the upper froth layer containing oil and bitumen and removing the lower clean sand layer and the middle clean water layer from the tank.
Description
~ ~l77~lg TITLE OF TlIE l~vc.n,L~
method of separating oil and bitumen from sand 5 NAME S OF 1l. v~
Earl Gingras Paul R~1 :In~r FIELD OF TEIE INVFN~TON
The present invention relates to a method of separating oil and bitumen from sand. The method has application to 15 primary or s~ n-l.qry treatment of tar sands, the treatment of tailings from various mining or ~lr;llin~ processe3, and environmental clean up operation3.
20 pr ~ OF ~ INVENTION
There are variou3 applications in which it i3 rl~; r~hl e to separate oil and bitumen from sand. One UI~ ~ n~nl- example is the tar sand3 '. The tar sand3 are deposit3 having, on a 25 mass percentage basis, silica sand a3 the principal ~ _-- L.
These deposits have a bitumen content of approximately 1096.
They also contain fines (mostly clay3), and a few other minerals in trace amounts. Another example i5 lec~-v~:Ly from -heavy oil" well3. Steam is injected into a well to allow 30 heavy oil deposits to flow. The heavy oil brought to surface i8 mixed with 3and. After primary separation, the sand remains contaminated with an oil and bitumen content of 4%-7i In broad terms, the methodology f or separating oil and 35 bitumen from sand involves the following steps. Firstly, adding water to form an aqueous slurry. Secondly, heating the aqueous slurry to make the oil and bitumen less viscous.
~ 7~18 Thirdly, sub; ecting the aqueous slurry to agitation, thereby causing separation into an upper froth layer, a middle layer of waste slurry and a lower sludge layer with residual oil and bitumen content. Oil and bitumen are skimmed from the upper 5 froth layer for further prQcesf7in~.
Through the years, various t~ hniq~ 7 have been tried to Lmprove separation. One techniquc is to add ~-hl~mi rz71~, such as sodium hydroxide. Sodium hydroxide is a ~h~micr7l that 10 draws surfactants out of the tar sands which assist in separating the bitumen. Another techniq7l~ is to use aeration to increase the volume of the upper froth layer. Other techniques have aLmed at ~-Yimi7;nq the use of Las.7uL- G8 in order to make the process more ~f~;~ie 7t. These techniques 15 involve such practical measures as recycling water used in the process. Regardless of the technique employed, a residual oil and bitumen content is always left in the sand and a portion of the water rer~7ainff contaminated by f ines .
20 B7~1aRY ~F THE INV~N'77TON
What is required is a method of separating oil and bitumen from sand that ~V~ the inadequacies of present methods by reducing or elLminating any residual cor7tz7m; nz7tion in sand 25 and water.
According to the present invcntLon therc is provided a method of separating oil and bitumen from sand. Firstly, mixing sand containing oil and bitumen with water in a tank to 30 form an aqueous slurry. Secondly, adding a water solution of hydrogen peroxide to the aqueous slurry and agitating the aqueous slurry. The hydLl~gell peroxide serves as a catalyst initiating a vigorous reaction that separates the aqueous slurry into an upper froth layer, a middle clean water layer 35 and a lower clean sand and clay layer. Thirdly, ~ki : n~ the upper f roth layer and removing the lower clean sand layer and the middle clean water layer from the tank.
method of separating oil and bitumen from sand 5 NAME S OF 1l. v~
Earl Gingras Paul R~1 :In~r FIELD OF TEIE INVFN~TON
The present invention relates to a method of separating oil and bitumen from sand. The method has application to 15 primary or s~ n-l.qry treatment of tar sands, the treatment of tailings from various mining or ~lr;llin~ processe3, and environmental clean up operation3.
20 pr ~ OF ~ INVENTION
There are variou3 applications in which it i3 rl~; r~hl e to separate oil and bitumen from sand. One UI~ ~ n~nl- example is the tar sand3 '. The tar sand3 are deposit3 having, on a 25 mass percentage basis, silica sand a3 the principal ~ _-- L.
These deposits have a bitumen content of approximately 1096.
They also contain fines (mostly clay3), and a few other minerals in trace amounts. Another example i5 lec~-v~:Ly from -heavy oil" well3. Steam is injected into a well to allow 30 heavy oil deposits to flow. The heavy oil brought to surface i8 mixed with 3and. After primary separation, the sand remains contaminated with an oil and bitumen content of 4%-7i In broad terms, the methodology f or separating oil and 35 bitumen from sand involves the following steps. Firstly, adding water to form an aqueous slurry. Secondly, heating the aqueous slurry to make the oil and bitumen less viscous.
~ 7~18 Thirdly, sub; ecting the aqueous slurry to agitation, thereby causing separation into an upper froth layer, a middle layer of waste slurry and a lower sludge layer with residual oil and bitumen content. Oil and bitumen are skimmed from the upper 5 froth layer for further prQcesf7in~.
Through the years, various t~ hniq~ 7 have been tried to Lmprove separation. One techniquc is to add ~-hl~mi rz71~, such as sodium hydroxide. Sodium hydroxide is a ~h~micr7l that 10 draws surfactants out of the tar sands which assist in separating the bitumen. Another techniq7l~ is to use aeration to increase the volume of the upper froth layer. Other techniques have aLmed at ~-Yimi7;nq the use of Las.7uL- G8 in order to make the process more ~f~;~ie 7t. These techniques 15 involve such practical measures as recycling water used in the process. Regardless of the technique employed, a residual oil and bitumen content is always left in the sand and a portion of the water rer~7ainff contaminated by f ines .
20 B7~1aRY ~F THE INV~N'77TON
What is required is a method of separating oil and bitumen from sand that ~V~ the inadequacies of present methods by reducing or elLminating any residual cor7tz7m; nz7tion in sand 25 and water.
According to the present invcntLon therc is provided a method of separating oil and bitumen from sand. Firstly, mixing sand containing oil and bitumen with water in a tank to 30 form an aqueous slurry. Secondly, adding a water solution of hydrogen peroxide to the aqueous slurry and agitating the aqueous slurry. The hydLl~gell peroxide serves as a catalyst initiating a vigorous reaction that separates the aqueous slurry into an upper froth layer, a middle clean water layer 35 and a lower clean sand and clay layer. Thirdly, ~ki : n~ the upper f roth layer and removing the lower clean sand layer and the middle clean water layer from the tank.
2~77~8 The method, as described above, is an QnhAn~Pd froth floatation separation process. With this method, secondary treatment of sand containing oil and bitumen has resulted in 5 the sand being cleaned to such an extent that it is suitable for use in industrial applications. The separation of solids has been 80 complete that solids of differing densities form in layers. Water used in the process has remarkable clarity, and can be repeatedly recycled. The process is a batch process 10 that works far better than one could reasonably predict. It is not fully understood why the separation method ~lP~rihQd above is 80 complete. What is apparent is that the hydrogen peroxide serves as a catalyst to a vigorous reaction; resulting in a L~ rl~hlP degree of separation. The use of hydrogen 15 pQr~rir7e leaves no harmful residue.
BRIEF IJEi.~;A~ OF THE LIE~w These and other features of the illvention will become more apparent from the following description in which reference is made to the I~Qn~led drawings, wherein:
FIaURE 1 i3 pe~ ,e-:l ive view of a tank used in accordance with the tP~hin~ of the present method.
FIGURE 2 is an end elevation view, in section, of the tank illustrated in FIGURE 1.
FIGURE 3 i3 a f irst side elevation view of the tank illustrated in FIGURE 1, in a first position with separation into layers having occurred.
FIGURE 4 is a second side elevation view of the tank illustrated in FIGURE 1, in a second or inclined position.
~IZT~ 4~.:nl.t ~ L~ OF TNE; 1 ~rr ~ 'nIMENT
The preferred method of separating oil and bitumen from sand will now be described with re~erence to FIGUREB 1 through ~177018 4.
Referring to FIGURE l, the method consists of the following steps. Firstly, providing a tank 10 having a bottom 5 12 and 8i~ WAl 1 R 14 that diverge upwardly and outwardly from bottom 12. Referring to FIGURE 3, tank 10 has a first end 16 and a second end 18. ~fPrr;ng to FIGURE 2, a gas injection assembly, generally ;tl~ntifi~d by reference numeral 20, is positioned at bottom 12 of tank 10. Gas injection assembly 20 10 is used to inject agitating gas bubbles, as will hereinafter be further ~ rih~d, Gas injection assembly 20 includeq a ceramic aeration sheet 22 that i8 supported by a plurality of support rods 24 thereby r~.~f i ni n~ a plurality of gas cha~hers 26. A protective metal cover sheet 28 overlies ceramic 15 aeration sheet 22. Metal cover sheet 28 has a plurality of 31Ots 30, through which gas passes. Referring to FIGURE 4, a g~te 32 is positioned at first end 16. Gate 32 is movable between an open position, as illustrated in FIGURE 4, and a closed position, as illustrated in FIGURE 3. Referring to 20 FIGURE 4, tank 10 is pivotally mounted on a base 34 positioned at bottom 12 adjacent first end 16. An hydraulic jack 36 is used as lifting means. Hydraulic jack 36 is po~itinnf~d at bottom 12 of tank 10 adjacent second end 18. Second end 18 is lifted by hydraulic jack 36 to pivot tank 10 to an inclined 25 position, as illustrated in FIGURE 4.
Secondly, sand containing oil and bitumen is mixed with water in tank 10 to form an aqueous 31urry. The mixing is Al ~ hl~d by injecting gag through hoses 38 into gas 30 injection assembly 20. The amount of water added must be at least one part water f or every one part of sand to provide a proper slurry. It i~; preferred that the aqueous slurry be heated to make the oil and bitumen less viscous, but that is not essential to the 8~ 3ful Arpli~atinn of the method.
35 Thirdly, a water solution of IIYdLVYe~II peroxide is added to the aqueou3 slurry. There 3hould be at least one half ( 1/2 ) percent 1IYdLV9~:II peroxide has been added by volume for every ~7~
100 parts of sand by volume. Aqueous slurry is agitated by injecting bubbles of gas through air injection as3embly 20.
R-~f ~rr; n~ to FIGUR8 2, the hydrogen peroxide serves as a catalyst initiating a vigorous reaction that separate3 the aqueous slurry into an upper froth layer 40, a middle clean water layer 42 and a lower clean sand layer 44 and clay layer 46. The bubbles of gas pas3ing through the air injection assembly 20 serves to assist in carrying oil and bitumen to upper froth layer 40. Fourthly, referring to FIGURE 1, upper froth layer 40 is skimmed through ~k; : ng ports 48 in sidewalls 14. Middle clean water layer 42 is drained from tank 10 through a drainage port 50 in sidewall 14 and is recycled.
Fifthly, referring to FIGURE 4, gate 32 is placed in the open position and hydraulic jack 36 is used to lift second end 18 to pivot tank 10 to the ; n-~l i n~d position. Air injection assembly 20 is then used to gas assist the dumping of lower clean sand layer 44 and clay layer 46.
In order to test the efficacy of the described method, a 150 litre tank 10 was constructed. An air ~_ t ssor was used to deliver 3 cubic feet per minute of air through hoses 38 to gas injection as~embly 20. 9 litres of sand was added to tank 10 . The sand used was contaminated with 7 . 29~ oil and bitumen by dry weight. An aqueous slurry was created by adding 50 litres of water. The t~ ~-r~tllre of the aqueous slurry was raised to 45 degrees celsius. The time of each test was a uniform 30 minutes. A first test was conducted with no I~Y;dLOY~:II peroxide was added. The residual oil and bitumen content in the sand after proc~ in~ was .3196 dry weight. A
second test was conducted with a 35% solution of llyllO~
peroxide added in a quantity in which IIYdLOg~:I1 peroxide constituted 1% of the volume of the sand. The residual oil and bitumen content in the sand after processing was .14% dry weight. A third test was conducted in which the quantity of hydrogen peroxide was increased to 1 1/2%. The residual oil and bitumen content in the sand after processing was .11% dry weight. Some smaller scale te3ts were performed with IIYdL~Y~
~77~18 peroxide content of au high as 3~. The re~idual oil and bitumen content in the sand after processing on the smaller scale test was . 04% by dry weight.
The batch method, as described, greatly reduces the residual oil and bitumen content L- i ni nq in the sand after processing. The water i8 8llffi~ ntly clean that it be recycled. The solids are sllf f i ~ ntly clean that the sand, which is silica sand, can be used in glass production and other industrial applications.
It will be apparent to one skilled in the art that ' i f i f ationg may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
BRIEF IJEi.~;A~ OF THE LIE~w These and other features of the illvention will become more apparent from the following description in which reference is made to the I~Qn~led drawings, wherein:
FIaURE 1 i3 pe~ ,e-:l ive view of a tank used in accordance with the tP~hin~ of the present method.
FIGURE 2 is an end elevation view, in section, of the tank illustrated in FIGURE 1.
FIGURE 3 i3 a f irst side elevation view of the tank illustrated in FIGURE 1, in a first position with separation into layers having occurred.
FIGURE 4 is a second side elevation view of the tank illustrated in FIGURE 1, in a second or inclined position.
~IZT~ 4~.:nl.t ~ L~ OF TNE; 1 ~rr ~ 'nIMENT
The preferred method of separating oil and bitumen from sand will now be described with re~erence to FIGUREB 1 through ~177018 4.
Referring to FIGURE l, the method consists of the following steps. Firstly, providing a tank 10 having a bottom 5 12 and 8i~ WAl 1 R 14 that diverge upwardly and outwardly from bottom 12. Referring to FIGURE 3, tank 10 has a first end 16 and a second end 18. ~fPrr;ng to FIGURE 2, a gas injection assembly, generally ;tl~ntifi~d by reference numeral 20, is positioned at bottom 12 of tank 10. Gas injection assembly 20 10 is used to inject agitating gas bubbles, as will hereinafter be further ~ rih~d, Gas injection assembly 20 includeq a ceramic aeration sheet 22 that i8 supported by a plurality of support rods 24 thereby r~.~f i ni n~ a plurality of gas cha~hers 26. A protective metal cover sheet 28 overlies ceramic 15 aeration sheet 22. Metal cover sheet 28 has a plurality of 31Ots 30, through which gas passes. Referring to FIGURE 4, a g~te 32 is positioned at first end 16. Gate 32 is movable between an open position, as illustrated in FIGURE 4, and a closed position, as illustrated in FIGURE 3. Referring to 20 FIGURE 4, tank 10 is pivotally mounted on a base 34 positioned at bottom 12 adjacent first end 16. An hydraulic jack 36 is used as lifting means. Hydraulic jack 36 is po~itinnf~d at bottom 12 of tank 10 adjacent second end 18. Second end 18 is lifted by hydraulic jack 36 to pivot tank 10 to an inclined 25 position, as illustrated in FIGURE 4.
Secondly, sand containing oil and bitumen is mixed with water in tank 10 to form an aqueous 31urry. The mixing is Al ~ hl~d by injecting gag through hoses 38 into gas 30 injection assembly 20. The amount of water added must be at least one part water f or every one part of sand to provide a proper slurry. It i~; preferred that the aqueous slurry be heated to make the oil and bitumen less viscous, but that is not essential to the 8~ 3ful Arpli~atinn of the method.
35 Thirdly, a water solution of IIYdLVYe~II peroxide is added to the aqueou3 slurry. There 3hould be at least one half ( 1/2 ) percent 1IYdLV9~:II peroxide has been added by volume for every ~7~
100 parts of sand by volume. Aqueous slurry is agitated by injecting bubbles of gas through air injection as3embly 20.
R-~f ~rr; n~ to FIGUR8 2, the hydrogen peroxide serves as a catalyst initiating a vigorous reaction that separate3 the aqueous slurry into an upper froth layer 40, a middle clean water layer 42 and a lower clean sand layer 44 and clay layer 46. The bubbles of gas pas3ing through the air injection assembly 20 serves to assist in carrying oil and bitumen to upper froth layer 40. Fourthly, referring to FIGURE 1, upper froth layer 40 is skimmed through ~k; : ng ports 48 in sidewalls 14. Middle clean water layer 42 is drained from tank 10 through a drainage port 50 in sidewall 14 and is recycled.
Fifthly, referring to FIGURE 4, gate 32 is placed in the open position and hydraulic jack 36 is used to lift second end 18 to pivot tank 10 to the ; n-~l i n~d position. Air injection assembly 20 is then used to gas assist the dumping of lower clean sand layer 44 and clay layer 46.
In order to test the efficacy of the described method, a 150 litre tank 10 was constructed. An air ~_ t ssor was used to deliver 3 cubic feet per minute of air through hoses 38 to gas injection as~embly 20. 9 litres of sand was added to tank 10 . The sand used was contaminated with 7 . 29~ oil and bitumen by dry weight. An aqueous slurry was created by adding 50 litres of water. The t~ ~-r~tllre of the aqueous slurry was raised to 45 degrees celsius. The time of each test was a uniform 30 minutes. A first test was conducted with no I~Y;dLOY~:II peroxide was added. The residual oil and bitumen content in the sand after proc~ in~ was .3196 dry weight. A
second test was conducted with a 35% solution of llyllO~
peroxide added in a quantity in which IIYdLOg~:I1 peroxide constituted 1% of the volume of the sand. The residual oil and bitumen content in the sand after processing was .14% dry weight. A third test was conducted in which the quantity of hydrogen peroxide was increased to 1 1/2%. The residual oil and bitumen content in the sand after processing was .11% dry weight. Some smaller scale te3ts were performed with IIYdL~Y~
~77~18 peroxide content of au high as 3~. The re~idual oil and bitumen content in the sand after processing on the smaller scale test was . 04% by dry weight.
The batch method, as described, greatly reduces the residual oil and bitumen content L- i ni nq in the sand after processing. The water i8 8llffi~ ntly clean that it be recycled. The solids are sllf f i ~ ntly clean that the sand, which is silica sand, can be used in glass production and other industrial applications.
It will be apparent to one skilled in the art that ' i f i f ationg may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Claims (6)
1. A method of separating oil and bitumen from sand, comprising the steps of:
firstly, mixing sand containing oil and bitumen with water in a tank to form an aqueous slurry;
secondly, adding a water solution of hydrogen peroxide to the aqueous slurry and agitating the aqueous slurry, whereby the hydrogen peroxide serves as a catalyst initiating a vigorous reaction that separates the aqueous slurry into an upper froth layer, a middle clean water layer and a lower clean sand and clay layer; and thirdly, skimming the upper froth layer and removing the lower clean sand layer and the middle clean water layer from the tank.
firstly, mixing sand containing oil and bitumen with water in a tank to form an aqueous slurry;
secondly, adding a water solution of hydrogen peroxide to the aqueous slurry and agitating the aqueous slurry, whereby the hydrogen peroxide serves as a catalyst initiating a vigorous reaction that separates the aqueous slurry into an upper froth layer, a middle clean water layer and a lower clean sand and clay layer; and thirdly, skimming the upper froth layer and removing the lower clean sand layer and the middle clean water layer from the tank.
2. The method as defined in Claim 1, agitating the aqueous slurry by injecting bubbles of inert gas at a bottom of the tank.
3. The method as defined in Claim 1, having at least one half percent hydrogen peroxide added by volume for every 100 parts of sand by volume.
4. The method as defined in Claim 2, having a tank that has sidewalls that diverge upwardly and outwardly from the bottom.
5. The method as defined in Claim 1, having a tank that has bottom, a first end and a second end, a gate being positioned at the first end, the gate being movable between an open position and a closed position, the tank being pivotally mounted on a base positioned at the bottom adjacent the first end, lifting mean being positioned at the bottom adjacent the second end, such that when the lifting means is actuated with the gate in the open position, the tank pivots to an inclined position whereupon the lower clean sand layer is dumped.
6. A method of separating oil and bitumen from sand, comprising the steps of:
firstly, providing a tank having:
a bottom, sidewalls that diverge upwardly and outwardly from the bottom, a first end and a second end;
means for injecting gas at the bottom of the tank;
a gate positioned at the first end, the gate being movable between an open position and a closed position;
the tank being pivotally mounted on a base positioned at the bottom adjacent the first end;
lifting means being positioned at the bottom adjacent the second end whereby the second end of the tank is lifted by the lifting means to pivot the tank to an inclined position;
secondly, mixing sand containing oil and bitumen with water in the tank to form an aqueous slurry;
thirdly, adding a water solution of hydrogen peroxide to the aqueous slurry until at least one half percent hydrogen peroxide has been added by volume for every 100 parts of sand by volume and agitating the aqueous slurry by injecting bubbles of gas through the means for injecting gas at a bottom of the tank, whereby the hydrogen peroxide serves as a catalyst initiating a vigorous reaction that separates the aqueous slurry into an upper froth layer, a middle clean water layer and a lower clean sand and clay layer, with the bubbles of gas assisting in carrying oil and bitumen to the upper froth layer;
and fourthly, skimming the upper froth layer and draining the middle clean water layer from the tank; and fifthly, opening the gate and actuating the lifting means to pivot the tank to the inclined position and using the means for injecting gas for a gas assisted dumping of the lower clean sand layer.
firstly, providing a tank having:
a bottom, sidewalls that diverge upwardly and outwardly from the bottom, a first end and a second end;
means for injecting gas at the bottom of the tank;
a gate positioned at the first end, the gate being movable between an open position and a closed position;
the tank being pivotally mounted on a base positioned at the bottom adjacent the first end;
lifting means being positioned at the bottom adjacent the second end whereby the second end of the tank is lifted by the lifting means to pivot the tank to an inclined position;
secondly, mixing sand containing oil and bitumen with water in the tank to form an aqueous slurry;
thirdly, adding a water solution of hydrogen peroxide to the aqueous slurry until at least one half percent hydrogen peroxide has been added by volume for every 100 parts of sand by volume and agitating the aqueous slurry by injecting bubbles of gas through the means for injecting gas at a bottom of the tank, whereby the hydrogen peroxide serves as a catalyst initiating a vigorous reaction that separates the aqueous slurry into an upper froth layer, a middle clean water layer and a lower clean sand and clay layer, with the bubbles of gas assisting in carrying oil and bitumen to the upper froth layer;
and fourthly, skimming the upper froth layer and draining the middle clean water layer from the tank; and fifthly, opening the gate and actuating the lifting means to pivot the tank to the inclined position and using the means for injecting gas for a gas assisted dumping of the lower clean sand layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002177018A CA2177018A1 (en) | 1996-05-21 | 1996-05-21 | Method of separating oil and bitumen from sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002177018A CA2177018A1 (en) | 1996-05-21 | 1996-05-21 | Method of separating oil and bitumen from sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2177018A1 true CA2177018A1 (en) | 1997-11-22 |
Family
ID=4158236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002177018A Abandoned CA2177018A1 (en) | 1996-05-21 | 1996-05-21 | Method of separating oil and bitumen from sand |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2177018A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002102717A1 (en) * | 2001-06-18 | 2002-12-27 | Continuum Environmental, Llc | Method and apparatus for separating hydrocarbons from mineral substrates |
| CN100360641C (en) * | 2005-02-18 | 2008-01-09 | 王泽生 | Method and special apparatus for recovering hydrocarbon oil from oil sand |
| US7628909B2 (en) * | 2004-09-27 | 2009-12-08 | Coriba Technologies, L.L.C. | Composition and process for the extraction of bitumen from oil sands |
| US7678201B2 (en) | 2005-07-22 | 2010-03-16 | Coriba Technologies, L.L.C. | Composition and process for the removal and recovery of hydrocarbons from substrates |
| CN107309072A (en) * | 2017-08-28 | 2017-11-03 | 李福军 | Rubble asphalt waste finely sorts reuse method |
-
1996
- 1996-05-21 CA CA002177018A patent/CA2177018A1/en not_active Abandoned
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6576145B2 (en) * | 1997-02-27 | 2003-06-10 | Continuum Environmental, Llc | Method of separating hydrocarbons from mineral substrates |
| WO2002102717A1 (en) * | 2001-06-18 | 2002-12-27 | Continuum Environmental, Llc | Method and apparatus for separating hydrocarbons from mineral substrates |
| US7628909B2 (en) * | 2004-09-27 | 2009-12-08 | Coriba Technologies, L.L.C. | Composition and process for the extraction of bitumen from oil sands |
| CN100360641C (en) * | 2005-02-18 | 2008-01-09 | 王泽生 | Method and special apparatus for recovering hydrocarbon oil from oil sand |
| US7678201B2 (en) | 2005-07-22 | 2010-03-16 | Coriba Technologies, L.L.C. | Composition and process for the removal and recovery of hydrocarbons from substrates |
| CN107309072A (en) * | 2017-08-28 | 2017-11-03 | 李福军 | Rubble asphalt waste finely sorts reuse method |
| CN107309072B (en) * | 2017-08-28 | 2019-05-24 | 李福军 | Rubble asphalt waste finely sorts reuse method |
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