CN106526139B - The separation method of Various Groups In Crude Oil analysis funnel and crude oil race studies on asphaltene - Google Patents
The separation method of Various Groups In Crude Oil analysis funnel and crude oil race studies on asphaltene Download PDFInfo
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- CN106526139B CN106526139B CN201611026053.6A CN201611026053A CN106526139B CN 106526139 B CN106526139 B CN 106526139B CN 201611026053 A CN201611026053 A CN 201611026053A CN 106526139 B CN106526139 B CN 106526139B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; viscous liquids; paints; inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2823—Oils, i.e. hydrocarbon liquids raw oil, drilling fluid or polyphasic mixtures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
Abstract
The separation method of Various Groups In Crude Oil analysis funnel and crude oil race studies on asphaltene proposed by the present invention, it is related to Various Groups In Crude Oil analysis experimental field, funnel includes upper bucket body, conduit and absorbent cotton room for placing absorbent cotton, upper bucket body, absorbent cotton room and conduit are from top to bottom sequentially tightly connected and all have inner cavity up and down, upper bucket body is hollow back taper stage body, absorbent cotton room is hollow column, the internal diameter of conduit is less than the internal diameter of absorbent cotton room, absorbent cotton room is made of upper chamber body and the sealed connection of lower chamber body, the upper chamber body and the lower chamber body are removedly connected.
Description
Technical field
The present invention relates to Various Groups In Crude Oil analysis experimental fields, in particular to the Various Groups In Crude Oil for asphalitine separation
Analysis funnel and crude oil race asphalitine separation method.
Background technique
Various Groups In Crude Oil is analyzed at present, it mainly " can in 2008 rock of SY/T5119-according to existing separation standard
Molten organic matter and Various Groups In Crude Oil analysis " in chromatographic column method carry out concrete operations.
Using column chromatography pair in standard " soluble organic and Various Groups In Crude Oil analysis in 2008 rock of SY/T5119-"
Crude oil carries out Group component separation, is divided into four kinds of saturated hydrocarbons, aromatic hydrocarbon, resin and asphalt Group Components.
Wherein, the principle that asphalitine is separated with its excess-three race's component is asphalitine insoluble in n-hexane, is relied primarily on de-
The physical filtering of rouge cotton retains asphalitine microparticle, then washes out asphalitine from absorbent cotton with chloroform, is weighed.For
It avoids Group Component in the adhesion loss of inner wall of hopper, reduces consumption of organic solvent, filler neck should not generally be grown.
The separation process of asphalitine is as follows: sufficiently dissolving water removal removal of impurities crude oil using n-hexane first, then manually clogs
The funnel of absorbent cotton is filtered said mixture, and the asphalitine in mixture is separated because n-hexane is not dissolved in, it
Chloroform absorbent cotton is used afterwards, and asphalitine is obtained because being dissolved in chloroform, finally collects filtrate and using chromatographic column to its excess-three
Kind Group Component is separated.
During application funnel and absorbent cotton separation asphalitine, manually absorbent cotton need to be clogged into funnel,
The consolidation degree of absorbent cotton inevitably has differences in the operating process of filling absorbent cotton every time, is easy because of artificial filling absorbent cotton
Consolidation degree difference and be filtered for multiple times, thus cause n-hexane dosage to increase, the volatilization time increases, and cause
Because of the Various Groups In Crude Oil mass loss caused by operation is filtered for multiple times；Further, since being manually to clog, absorbent cotton mistake is clogged
Journey is also easy to introduce biggish systematic error because of the difference of experimenter, and then influences the reliability and accuracy of experimental result.
It can thus be seen that there are many defects for the separation method of above-mentioned crude oil race studies on asphaltene, therefore, it is necessary to upper
The separation method and experimental tool used for stating crude oil race studies on asphaltene are further improved.
Summary of the invention
The object of the present invention is to provide a kind of Various Groups In Crude Oil analysis funnels, can be compressed to a certain amount of absorbent cotton
Fixed volume, to guarantee the filter effect of organic matter and Various Groups In Crude Oil.
It is another object of the present invention to propose a kind of separation method of crude oil race studies on asphaltene, it can guarantee the mistake of asphalitine
Effect is filtered, and reduces systematic error.
In order to achieve the above objectives, the present invention proposes a kind of Various Groups In Crude Oil analysis funnel, wherein the funnel includes upper
Bucket body, conduit and the absorbent cotton room for placing absorbent cotton, the upper bucket body, the absorbent cotton room and the conduit are from top to bottom
Sequence is tightly connected and all has inner cavity up and down, and the upper bucket body is hollow back taper stage body, and the absorbent cotton room is
Hollow column, the internal diameter of the conduit are less than the internal diameter of the absorbent cotton room, and the absorbent cotton room is by upper chamber body and lower room
Body is tightly connected composition, and the upper chamber body and the lower chamber body are removedly connected.
Various Groups In Crude Oil analysis funnel as described above, wherein the upper chamber body and the lower chamber body are hollow
Cylindrical body, the top of the upper chamber body are fixed in the bottom end of the upper bucket body, and the bottom end of the lower chamber body is fixed in the conduit
Top, the outer wall of the upper chamber body is equipped with external screw thread, and the inner wall of the lower chamber body is equipped with internal screw thread, the external screw thread and institute
State internal screw thread intermeshing.
Various Groups In Crude Oil analysis funnel as described above, wherein the table on the externally threaded surface and the internal screw thread
Face is frosting.Various Groups In Crude Oil analysis funnel as described above, wherein the top of the upper chamber body and/or it is described under
The bottom end of chamber body is equipped with filter.
Various Groups In Crude Oil analysis funnel as described above, wherein the filter with a thickness of 2mm, the hole of the filter
Diameter is 0.18mm.
Various Groups In Crude Oil analysis funnel as described above, wherein the internal volume of the absorbent cotton room is 796mm.
Various Groups In Crude Oil analysis funnel as described above, wherein the conduit includes the of sequence setting from top to bottom
One reducing diameter part, catheter body, the second reducing diameter part and thin footpath outlet portion, the internal diameter on its top of first reducing diameter part and the lower room
The internal diameter of body is identical, and the inner wall of the inner wall of first reducing diameter part and second reducing diameter part is tapered from top to bottom
The inner wall of the conical surface, the inner wall of the catheter body and the thin footpath outlet portion is cylinder.
The present invention also proposes a kind of separation method of crude oil race studies on asphaltene, wherein the separation method uses institute as above
The Various Groups In Crude Oil analysis funnel stated, the separation method include:
Step A weighs crude oil using sample weighting bottle, and the crude oil is completely dissolved to form suspension with n-hexane；
Step B fills in absorbent cotton in the upper chamber body of the funnel；
Step C connects the upper chamber body and the lower chamber body of the funnel, assembles the funnel；
Step D takes the suspension in step A, is added into the upper bucket body of the funnel, the suspension
The absorbent cotton room is reached through the upper bucket body, forms the first filtrate after absorbent cotton filtering, first filtrate is through institute
State conduit outflow；
Step E accepts first filtrate with triangular flask, washs the sample weighting bottle and the absorbent cotton repeatedly with n-hexane
Until first filtrate is colourless；
Step F with chloroform and dissolves the asphalitine on the sample weighting bottle, the funnel and the absorbent cotton and formation
Second filtrate, and sample weighting bottle, the funnel and the absorbent cotton described in chloroform are used repeatedly until second filtrate is colourless
Until, and second filtrate is accepted with the weighing bottle of constant weight；
Step G, the weighing bottle to the dry doubling that volatilizees under conditions of being not higher than 60 DEG C weigh, calculate the asphalitine and contain
Amount.
The separation method of crude oil race as described above studies on asphaltene, wherein in stepb, the weight of the absorbent cotton is
0.4g to 0.5g.
The separation method of crude oil race as described above studies on asphaltene, wherein in stepb, the absorbent cotton part is filled in
In the upper chamber body, be trapped in the external absorbent cotton of the upper chamber volume be the upper chamber body volume 1/5 to 1/
4。
Compared with prior art, the invention has the characteristics that and advantage:
Various Groups In Crude Oil analysis funnel and crude oil race asphalitine separation method proposed by the present invention, in the base of conventional funnel
Increase absorbent cotton room on plinth, the absorbent cotton of certain mass can be compressed to fixed volume in absorbent cotton room, reduce because
The consolidation degree difference of absorbent cotton caused by artificial filling, ensure that the filter effect of asphalitine.
Various Groups In Crude Oil analysis funnel and crude oil race asphalitine separation method proposed by the present invention, in the base of conventional funnel
Absorbent cotton room is increased on plinth, the absorbent cotton of certain mass can be compressed to fixed volume in absorbent cotton room, is being guaranteed often
In the identical situation of absorbent cotton dosage of secondary experiment, then it is avoided that the experiment that may be introduced during artificial filling absorbent cotton misses
Difference reduces systematic error, improves the accuracy of experimental result.
Various Groups In Crude Oil analysis funnel and crude oil race asphalitine separation method proposed by the present invention, in the base of conventional funnel
Increase absorbent cotton room on plinth, the absorbent cotton of certain mass can be compressed to fixed volume in absorbent cotton room, reduce because
The consolidation degree difference of absorbent cotton caused by artificial filling, reduces the dosage of number of operations and n-hexane, and then also reduce
The mass losses of crude oil race other components.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed by the invention in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding of the present invention, and
It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can
Implement the present invention to select various possible shapes and proportional sizes as the case may be.
Fig. 1 is the structural schematic diagram that one embodiment of funnel is used in Various Groups In Crude Oil proposed by the present invention analysis；
Fig. 2 is the structural schematic diagram that another embodiment of funnel is used in Various Groups In Crude Oil proposed by the present invention analysis；
Fig. 3 is that the assembling of Fig. 2 Crude Oil Group Component analysis funnel is illustrated.
Description of symbols:
100 funnels；Bucket body on 110；
120 absorbent cotton rooms；Chamber body on 121；
122 lower chamber bodies；123 filters；
130 conduits；131 first reducing diameter parts；
132 catheter bodies；133 second reducing diameter parts；
134 thin footpath outlet portions.
Specific embodiment
With reference to the drawings and the description of the specific embodiments of the present invention, details of the invention can clearly be understood.But
It is the specific embodiment of invention described herein, purpose for explaining only the invention, and cannot understand in any way
At being limitation of the present invention.Under the teachings of the present invention, technical staff is contemplated that based on any possible change of the invention
Shape, these are regarded as belonging to the scope of the present invention.
Fig. 1 is please referred to Fig. 3, wherein Fig. 1 is the knot that one embodiment of funnel is used in Various Groups In Crude Oil proposed by the present invention analysis
Structure schematic diagram；Fig. 2 is the structural schematic diagram that another embodiment of funnel is used in Various Groups In Crude Oil proposed by the present invention analysis；Fig. 3 is Fig. 2
The assembling of Crude Oil Group Component analysis funnel is illustrated.As shown in Figure 1 and Figure 2, Various Groups In Crude Oil analysis leakage proposed by the present invention
Bucket 100 includes upper bucket body 110, conduit 130 and the absorbent cotton room 120 for placing absorbent cotton, upper bucket body 110, absorbent cotton room 120
It is from top to bottom linked in sequence with conduit 130 and all has inner cavity up and down, upper bucket body 110 is hollow back taper stage body, is taken off
Rouge cotton room 120 is hollow column, and the internal diameter of conduit 130 is less than the internal diameter of absorbent cotton room 120, and absorbent cotton room 120 is by upper chamber
Body 121 and lower chamber body 122 are tightly connected composition, and upper chamber body 121 and lower chamber body 122 are removedly connected.
Various Groups In Crude Oil analysis funnel 100 proposed by the present invention, is mainly used for being separated by filtration asphalitine, the funnel 100
Absorbent cotton room 120 is increased on the basis of conventional funnel and is connected using assembly type, and absorbent cotton room 120 is by upper 121 He of chamber body
Lower chamber body 122 assembles, and a certain amount of absorbent cotton can be compressed to fixed volume in absorbent cotton room 120, reduce because
The consolidation degree difference of absorbent cotton caused by artificial filling, ensure that the filter effect of asphalitine；Operation is decreased simultaneously
The dosage of number and n-hexane, and then decrease the mass loss of crude oil race other components；In addition, due to can be by certain matter
The absorbent cotton of amount is compressed to fixed volume in absorbent cotton room 120, is guaranteeing the identical situation of the absorbent cotton dosage tested every time
Under, then it can reduce systematic error, improve the accuracy of experimental result.
In an optional example of the invention, as shown in Figure 2 and Figure 3, upper chamber body 121 and lower chamber body 122 are hollow
Cylindrical body, the top of upper chamber body 121 are fixed in the bottom end of bucket body 110, and the bottom end of lower chamber body 122 is fixed in the top of conduit 130
End, the outer wall of upper chamber body 121 are equipped with external screw thread, and the inner wall of lower chamber body 122 is equipped with internal screw thread, and external screw thread and internal screw thread are mutually nibbled
It closes.Various Groups In Crude Oil analysis proposed by the present invention needs first to be assembled before use with funnel 100, first fills in absorbent cotton de-
In cavity in the upper chamber body 121 of rouge cotton room 120, later, upper chamber body 121 is screwed into lower chamber body 122, upper chamber body 121
External screw thread and the intermeshing of the internal screw thread of lower chamber body 122, upper chamber body 121 and lower chamber body 122 collectively constitute absorbent cotton room 120, spiral shell
Line completes the assembling to Various Groups In Crude Oil analysis funnel 100 after screwing.By between upper chamber body 121 and lower chamber body 122
Threaded connection, not only may be implemented Various Groups In Crude Oil analysis proposed by the present invention funnel 100 can neatly assemble and
Disassembly, moreover it is possible to the certain compression of the progress to the absorbent cotton in absorbent cotton room 120；Both the sealing to absorbent cotton room 120 had been realized,
The whole intensity of Various Groups In Crude Oil analysis funnel 100 is increased again.
In an optional example of the invention, the surface of externally threaded surface and internal screw thread is frosting (external screw thread
Surface and the surface of internal screw thread all have frosted structure sheaf), the frosted processing at screw thread further ensures sealing effect.
In an optional example of the invention, as shown in Figure 1 to Figure 3, the top of upper chamber body 121 and/or lower chamber body 122
Bottom end be equipped with filter 123, wherein can be in the top of upper chamber body 121 and bottom end (and the absorbent cotton room 120 of lower chamber body 122
Top and bottom end) be provided with filter 123, can also only the top of upper chamber body 121 or the bottom end of lower chamber body 122 setting filter
First 123.Filter 123 be also referred to as (sand core) filter plate, the lateral wall of filter 123 and its where upper chamber body 121 inner wall or under
The inner wall plane-plane contact of chamber body 122, the lateral wall of filter 123 and the inner wall of upper chamber body 121 or the inner wall of lower chamber body 122 are close
Envelope is fixedly connected.Filter 123 can be glass sand filter, and there is certain mechanical strength can compress absorbent cotton.Filter 123 is unlimited
Passing through for soluble Group Component is made, although filter 123 does not limit passing through for asphalitine microparticle substantially yet, due to filter 123
Setting can slow down the flow velocity of liquid, in fact also play the effect of auxiliary retention asphalitine.
In an optional example, filter 123 with a thickness of 2mm, to guarantee that filter 123 has enough intensity can
Absorbent cotton is pressed and is limited, the aperture of filter 123 is 0.18mm (80 mesh), in this way, the aperture size of filter 123 compared with
Greatly, it can be further ensured that it does not limit passing through for soluble Group Component, while can also assist retaining insoluble asphalitine
Grain.
In of the invention one optional example, the internal volume of absorbent cotton room 120 is 796mm3.If the absorbent cotton of filling
Volume is slightly larger than this, then after the screw thread between upper chamber body 121 and lower chamber body 122 screws, the absorbent cotton in absorbent cotton room 120
Just it is compressed into fixed volume (i.e. the internal volume of absorbent cotton room 120), in the identical feelings of absorbent cotton dosage that guarantee is tested every time
Under condition, then the volume and compression degree of experiment absorbent cotton are also identical every time, also just reduce since absorbent cotton compression degree is different
Caused by systematic error, improve the accuracy of experimental data.Wherein, guarantee that the dosage for testing its absorbent cotton every time is fixed,
It can be by being realized every time using the identical absorbent cotton of absorbent cotton or volume identical in quality.When the internal volume of absorbent cotton room 120
For 796mm3, it is recommended to use absorbent cotton dosage be 0.4g~0.5g.Alternatively, absorbent cotton volume is 120 content of absorbent cotton room
Long-pending 120%~125%.
In an optional example of the invention, as shown in Figure 2 and Figure 3, conduit 130 includes sequence setting from top to bottom
First reducing diameter part 131, catheter body 132, the second reducing diameter part 133 and thin footpath outlet portion 134,131 its top of the first reducing diameter part
Internal diameter is identical as the internal diameter of lower chamber body 122, and the inner wall of the inner wall of the first reducing diameter part 131 and the second reducing diameter part 133 is served as reasons
The tapered conical surface under, the inner wall of catheter body 132 and the inner wall of thin footpath outlet portion 134 are cylinder.Conduit 130 has
There are two at undergauge, respectively the first reducing diameter part 131 and the second reducing diameter part 133 pass through the first reducing diameter part 131 and the second reducing diameter part
133, the sectional area of absorbent cotton room 120 is gradually transition to the sectional area of thin footpath outlet portion 134, undergauge in the identical situation of flow
It will lead to flow field change, cause to shake, reinforce flushing effect, reduce substance residual, error is smaller；And transiens undergauge is set twice
Meter further reduces the Group Component substance residual that circular bead surface type undergauge may cause.The sectional area of thin footpath outlet portion 134 is very
It is small, and there is certain length, in thin footpath exit, the capillary force of drop and gravity balance each other, the chromatography process low discharge the case where
Under realized using capillary force the liquid of hopper outlet blocked, reduce air impact.
The invention also provides a kind of separation methods of crude oil race studies on asphaltene, are analyzed using above-mentioned Various Groups In Crude Oil with leakage
Bucket 100, the separation method include:
Step A weighs crude oil using sample weighting bottle, and the crude oil is completely dissolved to form suspension with n-hexane；
Step B fills in a certain amount of absorbent cotton in the upper chamber body 121 of Various Groups In Crude Oil analysis funnel 100；
Step C, the connection Various Groups In Crude Oil analysis upper chamber body 121 and lower chamber body 122 of funnel 100, assembles crude oil race group
Divide analysis funnel 100；
Step D takes the suspension in step A, is added into the upper bucket body 110 of Various Groups In Crude Oil analysis funnel 100,
Suspension reaches absorbent cotton room 120 through upper bucket body 110, the first filtrate is formed after absorbent cotton filters, the first filtrate is through conduit 130
Outflow；
Step E accepts the first filtrate with 250mL triangular flask, washs sample weighting bottle and absorbent cotton repeatedly extremely with n-hexane
Until the first filtrate flowed out from funnel 100 is colourless；
Step F, removes triangular flask and is replaced with the weighing bottle of constant weight and be placed on the lower section of funnel 100；Use chloroform
With the asphalitine on dissolution sample weighting bottle, funnel 100 and absorbent cotton and form the second filtrate, and repeatedly with chloroform sample weighting bottle,
Funnel 100 and absorbent cotton are accepted until the second filtrate flowed out from funnel 100 is colourless, and with the weighing bottle of constant weight
Second filtrate；
Step G, volatilization weighing bottle to dry doubling is weighed under conditions of being not higher than 60 DEG C, calculates the asphalt content.
Various Groups In Crude Oil analysis funnel proposed by the present invention and crude oil race asphalitine separation method are for existing separation
The concrete operations of chromatographic column method in standard " in 2008 rock of SY/T5119-soluble organic and Various Groups In Crude Oil analysis " and mention
Out.Separation now in conjunction with standard " soluble organic and Various Groups In Crude Oil analysis in 2008 rock of SY/T5119-" to asphalitine
Method is described further.
In an optional example of the invention, in stepb, the quality of absorbent cotton is 0.4g to 0.5g.Laboratory is real
The real internal volume 796mm that absorbent cotton room 120 is compressed into when its volume of the absorbent cotton of above-mentioned quality of verifying3When, absorbent cotton it is tight
Real degree optimum experiment, can not only guarantee the filter effect of asphalitine, but also can be reduced the dosage and Various Groups In Crude Oil of n-hexane
The loss of quality.
In an optional example of the invention, in stepb, the volume of absorbent cotton is the internal volume of absorbent cotton room 120
120%~125%, to realize that absorbent cotton is compressed into suitable consolidation degree.
In an optional example of the invention, in stepb, absorbent cotton part is filled in chamber body 121, is trapped in
The volume of absorbent cotton outside chamber body 121 is the 1/5 to 1/4 of the volume of upper chamber body.In this way, working as upper chamber body 121 and lower 122 spiral shell of chamber body
When line connects, absorbent cotton can be compressed.
In an optional example of the invention, the separation method of crude oil race proposed by the present invention studies on asphaltene further includes
Step H properly saves the first filtrate in triangular flask, and carries out next step saturated hydrocarbons, fragrance to the first filtrate using chromatographic column
The separation of hydrocarbon and colloid.
In an optional example of the invention, in step G, the calculation method establishing criteria " SY/ of asphalt content
In 2008 rock of T5119-soluble organic and Various Groups In Crude Oil analysis " in record.
For explaining in detail for the respective embodiments described above, purpose, which is only that, explains the present invention, in order to be able to
More fully understand the present invention, still, these descriptions cannot with any explanation at being limitation of the present invention, in particular,
Each feature described in different embodiments can also mutual any combination, so that other embodiments are formed, in addition to having
Opposite description is specified, these features should be understood to can be applied in any one embodiment, and be not limited merely to
Described embodiment.
Claims (10)
1. a kind of Various Groups In Crude Oil analysis funnel, which is characterized in that the funnel includes upper bucket body, conduit and de- for placing
The absorbent cotton room of rouge cotton, the upper bucket body, the absorbent cotton room and the conduit are from top to bottom sequentially tightly connected and all have
Inner cavity up and down, the upper bucket body are hollow back taper stage body, and the absorbent cotton room is hollow column, the conduit
Internal diameter be less than the absorbent cotton room internal diameter, the absorbent cotton room by upper chamber body and lower chamber body sealed connection form, it is described on
Chamber body and the lower chamber body are removedly connected.
2. Various Groups In Crude Oil analysis funnel as described in claim 1, which is characterized in that the upper chamber body and the lower chamber body
It is hollow cylindrical body, the top of the upper chamber body is fixed in the bottom end of the upper bucket body, and the bottom end of the lower chamber body is affixed
On the top of the conduit, the outer wall of the upper chamber body is equipped with external screw thread, and the inner wall of the lower chamber body is equipped with internal screw thread, described
External screw thread and internal screw thread intermeshing.
3. Various Groups In Crude Oil as claimed in claim 2 analysis funnel, which is characterized in that the externally threaded surface and described
The surface of internal screw thread is frosting.
4. the Various Groups In Crude Oil analysis funnel as described in any one of claims 1 to 3, which is characterized in that the upper chamber
The top of body and/or the bottom end of the lower chamber body are equipped with filter.
5. Various Groups In Crude Oil as claimed in claim 4 analysis funnel, which is characterized in that the filter with a thickness of 2mm, institute
The aperture for stating filter is 0.18mm.
6. Various Groups In Crude Oil as described in claim 1 analysis funnel, which is characterized in that the internal volume of the absorbent cotton room is
796mm3。
7. Various Groups In Crude Oil analysis funnel as described in claim 1, which is characterized in that the conduit includes suitable from top to bottom
The first reducing diameter part, catheter body, the second reducing diameter part and the thin footpath outlet portion of sequence setting, the internal diameter on its top of first reducing diameter part
Identical as the internal diameter of the lower chamber body, the inner wall of the inner wall of first reducing diameter part and second reducing diameter part is by upper
The inner wall of the tapered conical surface under, the inner wall of the catheter body and the thin footpath outlet portion is cylinder.
8. a kind of separation method of crude oil race studies on asphaltene, which is characterized in that the separation method uses such as claim 1 to 5
Any one of described in Various Groups In Crude Oil analysis funnel, the separation method includes:
Step A weighs crude oil using sample weighting bottle, and the crude oil is completely dissolved to form suspension with n-hexane；
Step B fills in absorbent cotton in the upper chamber body of the funnel；
Step C connects the upper chamber body and the lower chamber body of the funnel, assembles the funnel；
Step D takes the suspension in step A, is added into the upper bucket body of the funnel, the suspension is through institute
It states bucket body and reaches the absorbent cotton room, form the first filtrate after absorbent cotton filtering, led described in the first filtrate warp
Pipe outflow；
Step E accepts first filtrate with triangular flask, washs the sample weighting bottle and the absorbent cotton repeatedly with n-hexane to institute
State the first filtrate it is colourless until；
Step F with chloroform and dissolves the asphalitine on the sample weighting bottle, the funnel and the absorbent cotton and forms second
Filtrate, and use sample weighting bottle, the funnel and the absorbent cotton described in chloroform until second filtrate is colourless repeatedly,
And second filtrate is accepted with the weighing bottle of constant weight；
Step G, the weighing bottle to the dry doubling that volatilizees under conditions of being not higher than 60 DEG C are weighed, and the asphalt content is calculated.
9. the separation method of crude oil race as claimed in claim 8 studies on asphaltene, which is characterized in that in stepb, the degreasing
The weight of cotton is 0.4g to 0.5g.
10. the separation method of crude oil race as claimed in claim 8 studies on asphaltene, which is characterized in that in stepb, described de-
Rouge cotton part is filled in the upper chamber body, and the volume for being trapped in the external absorbent cotton of the upper chamber is the body of the upper chamber body
Long-pending 1/5 to 1/4.
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| CN202638050U (en) * | 2012-05-25 | 2013-01-02 | 中国石油化工股份有限公司 | Chromatographic column used for separating crude oil and soluble organic components in rock |
| CN202682842U (en) * | 2012-07-24 | 2013-01-23 | 中国石油大学(北京) | Chromatographic column for geochemistry |
| CN204439437U (en) * | 2015-02-16 | 2015-07-01 | 湖南农业大学 | The cleaning equipment of Detecting Pesticide |
| CN206192996U (en) * | 2016-11-18 | 2017-05-24 | 中国石油大学(北京) | Crude oil clan funnel for component analysis |
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