CN105176565B - A kind of method that heterogeneous reaction separates tar sand oil - Google Patents
A kind of method that heterogeneous reaction separates tar sand oil Download PDFInfo
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- CN105176565B CN105176565B CN201510678243.5A CN201510678243A CN105176565B CN 105176565 B CN105176565 B CN 105176565B CN 201510678243 A CN201510678243 A CN 201510678243A CN 105176565 B CN105176565 B CN 105176565B
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Abstract
The present invention relates to a kind of method that heterogeneous reaction separates tar sand oil, the core of the method is that multiphase is extracted, and oil-sand, solvent, aqueous alkali lotion are mixed in proportion, and forms unique multiphase and extracts system, the separating effect of tar sand oil in oil-sand is effectively raised, oil-sand oil recovery rate is more than 99.5%.Additionally, solvent, aqueous alkali lotion in course of reaction are recyclable, recycle；Reacted tailings oil content is generally less than 0.3%, directly can discharge.
Description
Technical field
The present invention relates to oil-sand manufacture field, and in particular to a kind of method that heterogeneous reaction separates tar sand oil.
Background technology
Oil-sand is a kind of important unconventional energy resource, is typically made up of heavy oil such as sandstone, clay, water and Colophoniumes, by adding
Substantial amounts of heavy oil can be obtained after work process, and oil sands reserves are huge, therefore the importance of oil-sand is day by day taken seriously, development technology
Also progressively deeply.The method for separating oil-sand at present mainly has thermokalite washing partition method, solvent extraction process, ionic liquid auxiliary extracting
Method, pyrogenation and carbonization method etc..
In thermokalite washing partition method, thermokalite water can generate carboxylic acidss surface with the reaction of the Colophonium in oil-sand as separating medium
Activating agent, reduces the surface tension between Colophonium and water, makes Colophonium and sand separation come, and thermokalite is washed in Canadian oil-sand separation
It is middle using more, realized heavy industrialization.CN104342185A discloses a kind of washing separation method of oil-sand, the method
By adding aqueous alkali separating medium, then heat up stirring, oil is peeled off from sand, bitumen recovery rate 75%-95%.The method has one
Determine defect, its oil-sand response rate higher to oil content is generally low, and water consumption is huge, while needing to build large-area tail
Mud processing pond, it is relatively costly.
Solvent extraction process is generally used for the higher oil-sand of oil content, recyclable most tar sand oil, but simple molten
Agent extraction is often difficult thoroughly to clean oil-sand, and tailings oil content is still higher.CN103484144A discloses a kind of extraction oil-sand
The solvent and method of middle oil, by solvent is mixed with oil-sand, heat up the method stirring, and bitumen recovery rate is in 90%-98%, tail
Sand oil content is still higher, it is impossible to directly discharge.
The research that method was detached to ionic liquid secondary solvent in recent years is also more, and CN102391185A is disclosed for aiding in oil
The ionic liquid and separation method of sand separation, the method bitumen recovery rate is up to more than 95%, but the usual price of ionic liquid is costly,
Laboratory research is suitable only for, is not suitable for large-scale industrial production.
Pyrogenation and carbonization method is that at high temperature oil sands bitumen is cracked, and the asphaltene molecule amount after Pintsch process subtracts
Little, colloid is reduced, and produces light oil.CN102504850A discloses a kind of oil-sand solid thermal carriers low temperature distillation technique, adopts
Combustion parts oil-sand forms 800 DEG C of high temperature sludges, then by high temperature sludge and oil-sand mixing heat supply, carries out hot dry distilling, carbonization gas Jing coolings
After reclaim, the method needs a large amount of heat energy, produces a large amount of smoke pollution environment, and Oil recovery rate is generally below 70%, and the method is little
Industrially apply.
The content of the invention
The present invention is directed to above-mentioned problems of the prior art, there is provided a kind of heterogeneous reaction separates tar sand oil in oil-sand
Technique, overcome said method presence defect and limitation, effectively raise the extraction efficiency and oil-sand of tar sand oil
The scope of application.
Technical scheme comprises the steps：
The water-oil phase reagent that organic solvent, aqueous alkali lotion are formulated is mixed with oil-sand in proportion, in uniform temperature
Lower heating, is uniformly mixed, system layering after reaction, obtain organic solvent and the mixed uniformly upper strata of tar sand oil and tailings and
The lower floor of aqueous alkali lotion composition；The mixture overflow of upper strata tar sand oil and organic solvent is separated, and separated goes out solvent, circulation profit
With while obtaining product tar sand oil；The mixture centrifugation of lower floor's aqueous alkali lotion and tailings, aqueous alkali lotion are recycled, tail
Sand is discharged.
In described water-oil phase reagent, oil phase is organic solvent, and water is mutually aqueous alkali lotion, and water-oil phase volume ratio is
Oil:Water=1:0.5-2.
Described aqueous alkali lotion is sodium hydrate aqueous solution, and concentration is 2-10wt%.
Described organic solvent be dichloromethane, trichloro ethylene, 3- chloropropenes, Pentamethylene., hexamethylene, petroleum ether, benzene,
One or more in toluene, Petroleum, gasoline, diesel oil.
Described oil-sand is 1 with the mixture weight ratio of oil, the complex reagent of two phase composition of water:0.5-2.
Described water-oil phase reagent is 50-95 DEG C with the heating-up temperature of oil-sand.
Advantages of the present invention effect is as follows：
The present invention passes through the introducing of solvent phase and aqueous alkali phase, effectively raises the tar sand oil product quality of recovery, oil-sand
Oil recovery rate more than 99.5%, tailings oil content are extremely low, and the consumption of water phase is less, not only economic but also environmental protection, while multiphase
Extract the suitability wide, can be used for the oil-sand of different oil contents.During the quantity of solvent that uses less than conventional oil-sand solvent extraction
Solvent load, effectively avoid solvent loss.Tailings oil content after treatment is extremely low, and generally below 0.3%.
Specific embodiment
Embodiment 1
Take 100g Indonesia oil-sand to mix with 100ml aqueous alkalis lotion and 50ml organic solvents, heating in water bath stirring, setting heating
Temperature 50 C, mixing time 20min.After stirring terminates, sample layering, by the mixed liquor overflow of upper strata tar sand oil and solvent point
Go out, solvent is walked in distillation point, while obtaining product tar sand oil.The mixture of lower floor's rinsing agent and tailings is centrifuged.Centrifugation gained tail
Sand is dried, and determines its oil content, show that the oil-sand oil recovery rate of oil sands sample is 99.5%；
Sodium hydroxide solution of the described aqueous alkali lotion for 2wt%.
Described organic solvent is petroleum ether.
Embodiment 2
Take 100g Indonesia oil-sand to mix with 50ml aqueous alkalis lotion and 100ml organic solvents, heating in water bath stirring, setting heating
Temperature 70 C, mixing time 20min.After stirring terminates, sample layering, by the mixed liquor overflow of upper strata tar sand oil and solvent point
Go out, solvent is walked in distillation point, while obtaining product tar sand oil.The mixture of lower floor's rinsing agent and tailings is centrifuged.Centrifugation gained tail
Sand is dried, and determines its oil content, show that the oil-sand oil recovery rate of oil sands sample is 99.7%；
Sodium hydroxide solution of the described aqueous alkali lotion for 5wt%.
Described organic solvent is by 93# gasoline, 0# diesel oil by volume 1:1 is formulated.
Embodiment 3
Take 100g Indonesia oil-sand to mix with 100ml aqueous alkalis lotion and 100ml organic solvents, heating in water bath stirring, setting add
95 DEG C of hot temperature, mixing time 20min.After stirring terminates, sample layering, by the mixed liquor overflow of upper strata tar sand oil and solvent point
Go out, solvent is walked in distillation point, while obtaining product tar sand oil.The mixture of lower floor's rinsing agent and tailings is centrifuged.Centrifugation gained tail
Sand is dried, and determines its oil content, show that the oil-sand oil recovery rate of oil sands sample is 99.8%；
Sodium hydroxide solution of the described aqueous alkali lotion for 10wt%.
Described organic solvent is toluene.
Embodiment 4
Take 100g Indonesia oil-sand to mix with 50g complex reagents, 50g complex reagents are by 25g aqueous alkalis lotion and 25g organic solvents
Mix, the sodium hydroxide solution of described aqueous alkali lotion for 5wt%, described organic solvent is Petroleum, other steps are same
Embodiment 1.
Embodiment 5
Take 150g Indonesia oil-sand to mix with 300g complex reagents, 300g complex reagents are organic by 200g aqueous alkalis lotion and 100g
Solvent is mixed, the sodium hydroxide solution of described aqueous alkali lotion for 3wt%, and described organic solvent is benzene, and other steps are same
Embodiment 1.
Embodiment 6
Take 150g Indonesia oil-sand to mix with 150g complex reagents, 150g complex reagents are organic by 50g aqueous alkalis lotion and 100g
Solvent is mixed, and described aqueous alkali lotion is the sodium hydroxide solution of 2wt%, and described organic solvent is dichloromethane, other
Step is with embodiment 1.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any to be familiar with sheet
Those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in should all be covered
Within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should be defined by claim is defined.
Claims (4)
1. a kind of method that heterogeneous reaction separates tar sand oil, it is characterised in that comprise the steps：
The water-oil phase reagent that organic solvent, aqueous alkali lotion are formulated is mixed with oil-sand in proportion, at a certain temperature plus
Heat, is uniformly mixed, system layering after reaction, obtains organic solvent and the mixed uniformly upper strata of tar sand oil and tailings and aqueous alkali
The lower floor of lotion composition；The mixture overflow of upper strata tar sand oil and organic solvent is separated, and separated goes out solvent, recycles,
Obtain product tar sand oil simultaneously；The mixture centrifugation of lower floor's aqueous alkali lotion and tailings, aqueous alkali lotion are recycled, tailings row
Go out；In described water-oil phase reagent, oil phase is organic solvent, and water is mutually aqueous alkali lotion, and water-oil phase volume ratio is oily:Water=
1:0.5-2；Described aqueous alkali lotion is sodium hydrate aqueous solution, and concentration is 2-10wt%.
2. the method that a kind of heterogeneous reaction according to claim 1 separates tar sand oil, it is characterised in that described is organic molten
Agent is dichloromethane, trichloro ethylene, 3- chloropropenes, Pentamethylene., hexamethylene, petroleum ether, benzene, toluene, Petroleum, gasoline, diesel oil
In one or more.
3. the method that a kind of heterogeneous reaction according to claim 1 separates tar sand oil, it is characterised in that described profit two
Phase reagent is 50-95 DEG C with the heating-up temperature of oil-sand.
4. the method that a kind of heterogeneous reaction according to claim 1 separates tar sand oil, it is characterised in that described oil-sand with
Oil, the mixture weight ratio of the complex reagent of two phase composition of water are 1:0.5-2.
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| CN106010623B (en) * | 2016-07-28 | 2017-11-21 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | One kind processing oil-based drill cuttings extractant and preparation method thereof |
| CN107099320A (en) * | 2017-05-18 | 2017-08-29 | 辽宁石油化工大学 | A kind of method that extraction and recovery crude oil is blended in oil sludge oil sand |
| CN110759614A (en) * | 2019-10-29 | 2020-02-07 | 中国石油化工股份有限公司 | Oil removing method for tank cleaning oil sludge before drying |
| CN114247178B (en) * | 2021-12-22 | 2023-06-16 | 中国石油天然气集团有限公司 | Extractant for treating oil-based drilling cuttings and application thereof |
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| CN100381539C (en) * | 2005-12-14 | 2008-04-16 | 南京大学 | Method for extracting asphalt from oil sand and its use |
| CN102888238A (en) * | 2011-07-21 | 2013-01-23 | 中国科学院兰州化学物理研究所 | Method for extracting asphaltum oil in oil sand by using organic solvent |
| CN103146412B (en) * | 2013-03-08 | 2015-07-29 | 中国矿业大学 | A kind of method of extracting oil sands bitumen and specific complex solvent |
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