CN103980931A - Water-acetonitrile separation liquid capable of simply separating light and heavy components of mixed fuel oil - Google Patents

Water-acetonitrile separation liquid capable of simply separating light and heavy components of mixed fuel oil Download PDF

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Publication number
CN103980931A
CN103980931A CN201410209333.5A CN201410209333A CN103980931A CN 103980931 A CN103980931 A CN 103980931A CN 201410209333 A CN201410209333 A CN 201410209333A CN 103980931 A CN103980931 A CN 103980931A
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China
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water
acetonitrile
parting liquid
separation liquid
liquid
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CN201410209333.5A
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Chinese (zh)
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CN103980931B (en
Inventor
赫荣安
周祥发
谭剑
赵晨曦
彭彬德
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长沙学院
湖南鸿鼎能源发展有限公司
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Abstract

The invention discloses water-acetonitrile separation liquid capable of simply separating light and heavy components of mixed fuel oil. The water-acetonitrile separation liquid comprises acetonitrile and water, wherein the water-acetonitrile separation liquid is taken as an undissolved phase, the relative density is adjustable between 0.79-1.0, and the effect of separating the light and heavy components of oils can be achieved by adjusting the relative density of the water-acetonitrile separation liquid. The water-acetonitrile separation liquid has the beneficial effects that 1, the water-acetonitrile separation liquid is also applicable to separation of volatile oil components; 2, the operation for separating oils is simpler, and the water-acetonitrile separation liquid is applicable to small and medium-size industrial application; 3, natural separation of light and heavy components in oils is also facilitated by interfacial tension of the water-acetonitrile separation liquid and hydrocarbon fuel oil.

Description

Water-acetonitrile parting liquid of the simple and easy separation Blended fuel oil of a kind of energy weight component
Technical field
The present invention relates to Blended fuel oil ingredient separation field, be specifically related to water-acetonitrile parting liquid of the simple and easy separation Blended fuel oil of a kind of energy weight component.
Background technology
At present, except the processed oil such as gasoline, diesel oil, how to be also in the stage of research and development initial stage or lab scale as the Blended fuel oil of its substitute, the industrial scale of Blended fuel oil is generally little;
Utilizing the boiling point difference of each component to carry out the fractionating process of mixed solution separation, is the one of continuous separation method, is applicable to large-scale industrial application, also impracticable in the industrial production activities of middle and small scale;
And the conventional extraction process of big-and-middle-sized oil enterprise, utilize the difference of oil product different components solubleness, by adding specific solvent, part component in oil product is dissolved in specific solvent, thereby obtain the target components immiscible with parting liquid, but the method is mainly used in purified product, instead of component separates;
Utilize fluid density difference to carry out the existing practical application of method of oil plant component separation,
For example, some waste oil reclaim the separatory method adopting in operation, utilize the difference of density of fraction in waste oil, by adding water, lighter volatile components is swum in waterborne, the component that is difficult to volatilization sinks under water, thereby reaches the object of different components in separating oil;
There is the defect that is difficult to reclaim and repeat recycling in the parting liquid using in existing oil product isolation technique in addition;
Existing preparation mainly utilizes commercial oil fuel to blend, and the composition control of oil product is very rough, and controllability is poor, is unfavorable for lifting and the popularization of oil fuel quality.
In sum, also there are some defects in prior art, and the one, separation method complexity, cannot adapt to middle and small scale industrial application; The 2nd, simple profit uses water as parting liquid, and the relative density of parting liquid is non-adjustable, cannot further separate volatile component; The 3rd, the parting liquid using is difficult to reclaim and repeat recycling. ?
Summary of the invention
The present invention aims to provide the parting liquid of a kind of energy simple and easy separation commodity fuel oil and oil fuel weight component, promotes the raising of Blended fuel oil quality.
In order to solve prior art, the one, separation method complexity, cannot adapt to large-scale industrial application; The 2nd, simple profit uses water as parting liquid, and the relative density of parting liquid is non-adjustable, cannot further separate volatile component; The 3rd, the parting liquid adopting is difficult to the drawback that reclaims and reuse;
The invention provides water-acetonitrile parting liquid of the simple and easy separation Blended fuel oil of a kind of energy weight component, be mixed into water-acetonitrile parting liquid by water and acetonitrile, the relative density of water-acetonitrile parting liquid can regulate between 0.79 ~ 1.0, therefore can change by the proportion of composing of water and acetonitrile in adjusting water-acetonitrile parting liquid the relative density of water-acetonitrile parting liquid in productive life, reach the object that separates Blended fuel oil.
Inventive point of the present invention is, using water-acetonitrile parting liquid as insoluble phase, to make its relative density adjustable between 0.79 ~ 1.0, by regulating the relative density of described water-acetonitrile parting liquid to carry out the weight component in separating oil,
For No. 0 diesel oil and hydrocarbon-based fuel oil, when the relative density of described water-acetonitrile parting liquid be less than 0.80 or the relative density of described water-acetonitrile parting liquid be greater than 0.85, described water-acetonitrile parting liquid does not reach the effect of the weight component in separating oil;
Beneficial effect one of the present invention is to separate also and be suitable for for volatile oil product component; The 2nd, make the operation of separating oil simpler and easy, be suitable for middle and small scale industrial application; The 3rd, the interfacial tension of described water-acetonitrile parting liquid and hydrocarbon fuel oil is also conducive to the weight component natural separation in oil product. ?
Specific embodiment
Specific embodiment 1
The oil product that need to isolate weight component injects separation vessel;
250 mL acetonitriles are mixed with 50 mL water normal temperature, for ease of identifying described water-acetonitrile parting liquid, can be chosen in above-mentioned water-acetonitrile parting liquid and add pigment;
Stir above-mentioned water-acetonitrile system parting liquid, and be poured in described separation vessel;
The described separation vessel of ultrasonic concussion is or/and mixed solution described in vigorous stirring fully disperses described mixed solution;
By described separation vessel capping, leave standstill to described mixed solution and be obviously divided into three layers;
Open lower floor's stopping valve of described separation vessel, discharge successively mixed solution described in described separation vessel, wherein the heavy component of oil product is discharged at first, and described water-acetonitrile parting liquid secondly, light component in oil product is finally discharged, and wherein said water-acetonitrile parting liquid can directly reclaim and reuse;
In the time that described mixed solution is discharged, note the position of the liquid level up and down of described water-acetonitrile parting liquid, in order to avoid sneak in oil product.
Specific embodiment 2
Preferably, get 1L hydrocarbon-based fuel oil, put into tubular vessel, add described water-acetonitrile parting liquid 0.5L, wherein said water-acetonitrile parting liquid by acetonitrile, water by volume the ratio of portion rate 6:1 be configured, stir described water-acetonitrile parting liquid 1 min, then by container sealing, leave standstill after 30 min, by container below valve open, emit successively each layer of liquid;
Concrete operation step is with specific embodiment 1.
Specific embodiment 3
Preferably, get 1L hydrocarbon-based fuel oil, put into tubular vessel, add described water-acetonitrile parting liquid 0.5L, wherein said water-acetonitrile parting liquid by acetonitrile, water by volume the ratio of portion rate 5:1 be configured, stir described water-acetonitrile parting liquid 1 min, then by container sealing, leave standstill after 30 min, by container below valve open, emit successively each layer of liquid;
Concrete operation step is with specific embodiment 1.
Specific embodiment 4
Preferably, get No. 0 diesel oil of 1L commodity, put into tubular vessel, add described water-acetonitrile parting liquid 0.5L, wherein said water-acetonitrile parting liquid by acetonitrile, water by volume the ratio of portion rate 6:1 be configured, stir described water-acetonitrile parting liquid 1 min, then by container sealing, leave standstill after 30 min, by container below valve open, emit successively each layer of liquid;
Concrete operation step is with specific embodiment 1.
Specific embodiment 5
Preferably, get No. 0 diesel oil of 1L commodity, put into tubular vessel, add described water-acetonitrile parting liquid 0.5L, wherein said water-acetonitrile parting liquid by acetonitrile, water by volume the ratio of portion rate 5:1 be configured, stir described water-acetonitrile parting liquid 1 min, then by container sealing, leave standstill after 30 min, by container below valve open, emit successively each layer of liquid;
Concrete operation step is with specific embodiment 1.
Specific embodiment 6
Preferably, get No. 0 diesel oil of 1L commodity, put into tubular vessel, add described water-acetonitrile parting liquid 0.5L, wherein said water-acetonitrile parting liquid by acetonitrile, water by volume the ratio of portion rate 1.5:1 be configured, stir described water-acetonitrile parting liquid 1 min, then by container sealing, leave standstill after 30 min, by container below valve open, emit successively each layer of liquid;
Concrete operation step is with specific embodiment 1.
Specific embodiment 7
Preferably, get No. 0 diesel oil of 1L commodity, put into tubular vessel, add described water-acetonitrile parting liquid 0.5L, wherein said water-acetonitrile parting liquid is configured in the ratio of 8:1 by acetonitrile, water, stirs described water-acetonitrile parting liquid 1 min, then by container sealing, leave standstill after 30 min, by container below valve open, emit successively each layer of liquid;
Concrete operation step is with specific embodiment 1.
Specific embodiment 8
Preferably, get 1L hydrocarbon-based fuel oil, put into tubular vessel, add described water-acetonitrile parting liquid 0.5L, wherein said water-acetonitrile parting liquid by acetonitrile, water by volume the ratio of portion rate 1.5:1 be configured, stir described water-acetonitrile parting liquid 1 min, then by container sealing, leave standstill after 30 min, by container below valve open, emit successively each layer of liquid;
Concrete operation step is with specific embodiment 1.
Specific embodiment 9
Preferably, get 1L hydrocarbon-based fuel oil, put into tubular vessel, add described water-acetonitrile parting liquid 0.5L, wherein said water-acetonitrile parting liquid by acetonitrile, water by volume the ratio of portion rate 8:1 be configured, stir described water-acetonitrile parting liquid 1 min, then by container sealing, leave standstill after 30 min, by container below valve open, emit successively each layer of liquid;
Concrete operation step is with specific embodiment 1.

Claims (4)

1. water-acetonitrile parting liquid of the simple and easy separation Blended fuel oil of energy weight component, comprises acetonitrile and water, it is characterized in that the relative density of described water-acetonitrile parting liquid can be adjustable between 0.79 ~ 1.0.
2. water-acetonitrile parting liquid according to claim 1, is characterized in that the relative density of described water-acetonitrile parting liquid can be adjustable between 0.80 ~ 0.85.
3. water-acetonitrile parting liquid according to claim 2, is characterized in that the volume parts of acetonitrile: volume parts=(1.5 ~ 8) of water: 1.
4. according to the water-acetonitrile parting liquid described in claim 1 or 2 or 3, it is characterized in that described water-acetonitrile parting liquid can directly reclaim and directly recycle.
CN201410209333.5A 2014-05-19 2014-05-19 A kind of simple and easy method separating mediation fuel oil weight component of energy Expired - Fee Related CN103980931B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107216908A (en) * 2017-07-23 2017-09-29 张家彬 A kind of used oil extraction tower pitch discharge technique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
周金波等: "间歇萃取精馏分离乙腈-水体系", 《化学工业与工程》, vol. 26, no. 6, 30 November 2009 (2009-11-30) *
崔现宝等: "加盐萃取精馏分离乙腈-水物系", 《石油化工》, vol. 36, no. 12, 31 December 2007 (2007-12-31) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107216908A (en) * 2017-07-23 2017-09-29 张家彬 A kind of used oil extraction tower pitch discharge technique

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