CN110355180A - Wax residue treatment method and system - Google Patents
Wax residue treatment method and system Download PDFInfo
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- CN110355180A CN110355180A CN201910591359.3A CN201910591359A CN110355180A CN 110355180 A CN110355180 A CN 110355180A CN 201910591359 A CN201910591359 A CN 201910591359A CN 110355180 A CN110355180 A CN 110355180A
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000002893 slag Substances 0.000 claims abstract description 97
- 238000010438 heat treatment Methods 0.000 claims abstract description 81
- 239000007787 solid Substances 0.000 claims abstract description 77
- 239000003960 organic solvent Substances 0.000 claims abstract description 75
- 238000001914 filtration Methods 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000000926 separation method Methods 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 238000000605 extraction Methods 0.000 claims description 55
- 238000005292 vacuum distillation Methods 0.000 claims description 51
- 239000007789 gas Substances 0.000 claims description 24
- 239000002415 cerumenolytic agent Substances 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 14
- 239000011261 inert gas Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 9
- 238000000746 purification Methods 0.000 claims description 8
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 230000006837 decompression Effects 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 239000003791 organic solvent mixture Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 14
- 239000011259 mixed solution Substances 0.000 abstract description 4
- 238000004821 distillation Methods 0.000 abstract description 2
- 239000001993 wax Substances 0.000 description 124
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 16
- 238000004090 dissolution Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 230000008901 benefit Effects 0.000 description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000003317 industrial substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0288—Applications, solvents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/80—Destroying solid waste or transforming solid waste into something useful or harmless involving an extraction step
-
- 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
- C10G73/00—Recovery or refining of mineral waxes, e.g. montan wax
- C10G73/42—Refining of petroleum waxes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The embodiment of the invention provides a wax residue treatment method, which comprises the following steps: heating and extracting a mixture of the slag wax and an organic solvent to dissolve the wax in the slag wax in the organic solvent and obtain a corresponding mixed solution; filtering and separating the mixed solution, and filtering out solid residues which are insoluble in the organic solvent in the residue wax; and carrying out reduced pressure distillation treatment on the mixed liquid subjected to filtering separation so as to separate the wax from the organic solvent to obtain the separated wax, and efficiently recovering the wax in the residual wax under the condition of not damaging the wax composition in the residual wax at low temperature, thereby avoiding the waste of wax resources.
Description
Technical field
The present invention relates to fixed-end forces technologies, more particularly to a kind of slag Lasaxing Oilfield method and system.
Background technique
F- T synthesis is the key reaction of ICL for Indirect Coal Liquefaction, is usually reacted using synthesis gas as raw material in catalyst and suitably
Under the conditions of liquid fuel of the synthesis based on paraffin hydrocarbon, the wax of generation by hydrofinishing and is hydrocracked, and can manufacture high standard
Number petrol and diesel oil, can also directly produce high melting-point wax by deaerating, cooling down.
With the extension of synthesising reacting time, the catalyst in paste state bed reactor is gradually inactivated, and needs to add new urge
Agent replaces partial catalyst, keeps the synthetic reaction steadily to carry out.In the actual operation process, dead catalyst and wax are arranged together
Reactor out is sent into wax filter element, and further isolated stable wax, remaining catalyst waste slag is due to containing 40-
The wax of 65wt% is defined as dangerous solid waste, therefore when carrying out fixed-end forces to the slag wax, usually first passes through burning for slag wax
In wax be converted to carbon dioxide and water, remaining waste residue is handled according to general solid waste.
Although above-mentioned processing mode solves the problems, such as the environment protection emission of slag wax, the wax in slag wax is directly burned, from
And the significant wastage of organic matter is caused, economic benefit is lower.Dissolve slag wax using heat treatment in the prior art, Zhi Hougao
Temperature separation, but high-temperature condition further aspect energy consumption is higher, on the other hand the composition of slag wax can be promoted to change.
Present inventor has found in the implementation of the present invention, F- T synthesis slag wax in the above scheme of the prior art
The wax in slag wax is converted to carbon dioxide and water by burning, causes the significant wastage of organic matter, economic benefit is lower.
Summary of the invention
The purpose of the embodiment of the present invention is that provide a kind of slag Lasaxing Oilfield method and system, wherein the slag Lasaxing Oilfield method can be with
In the case where low temperature does not destroy wax composition in slag wax, high efficiente callback is carried out to the wax in slag wax, so as to avoid wax resource
Waste.
To achieve the goals above, the embodiment of the present invention provides slag Lasaxing Oilfield method, this method comprises:
Heating extraction is carried out to the mixture of slag wax and organic solvent so that the wax in the slag wax be dissolved in it is described organic
In solvent and obtain corresponding mixed liquor；
Separation is filtered to the mixed liquor, the solid filtered out in the slag wax insoluble in the organic solvent is residual
Slag；
Vacuum distillation processing is carried out to the mixed liquor being separated by filtration, so that the wax and the organic solvent point
From the wax isolated.
Optionally, this method further include: the organic solvent that recycling is isolated after vacuum distillation is handled.
Optionally, this method further include:
The solid residue filtered out is dried, and recycles the organic solvent on the solid residue surface.
Optionally, this method further include:
Burn the solid residue filtered out.
Optionally, this method further include:
It collects and burns the exhaust gas that the solid residue generates, and inject inert gas into the exhaust gas being collected into.
Optionally, this method further include:
Cooling packing processing is carried out to the wax being recovered to after vacuum distillation is handled, to obtain finished product wax.
Optionally, this method further include:
The preceding pipeline to be flowed through to the mixed liquor of vacuum distillation processing and container progress are being carried out to the mixed liquor
Simultaneously continuous heating is preheated, so that the mixed liquor is in dissolved state always.
The embodiment of the present invention also provides a kind of slag lasaxing Oilfield system, which includes:
Heat extraction equipment, comprising heating extraction entrance and heating extraction outlet, for received slag wax with it is organic molten
The mixture of agent carries out heating extraction, so that the wax in the slag wax is dissolved in the organic solvent and is accordingly mixed
Liquid；
Filtering separation device, comprising being separated by filtration entrance and being separated by filtration liquid outlet and be separated by filtration solid outlet,
It is described to be separated by filtration entrance and heating extraction outlet connection, for receiving the mixing of heating extraction outlet output
Liquid, and separation is filtered to the mixed liquor, filter out the solid residue in the slag wax insoluble in the organic solvent；
Vacuum distillation apparatus includes vacuum distillation entrance, wax outlet and organic solvent outlet, the vacuum distillation entrance
It is connect with the liquid outlet that is separated by filtration, for receiving the mixed liquor being separated by filtration and to being separated by filtration
The mixed liquor carries out vacuum distillation processing, so that the wax and organic solvent separation, wherein the organic solvent outlet
It is connect with heating extraction entrance, the wax isolated by wax outlet output.
Optionally, the decompression distilling apparatus is also used to lead to the organic solvent and exports the organic solvent that will be isolated
It is recycled in the heating extraction equipment.
Optionally, the system further include:
Drying device, comprising residue entrance, drying solid outlet and dry liquid outlet, the residue entrance with it is described
It is separated by filtration solid outlet connection, for the solid residue received to be dried, and passes through the dry liquid
Body outlet will recycle the organic solvent on the solid residue surface into the heating extraction equipment.
Optionally, the system further include:
Burner, with it is described be separated by filtration solid outlet connect or the drying solid export, for receive filter out
The solid residue or into crossing the solid residue being dried, and burn the solid residue that receives.
Optionally, the system further include:
Purification device is connect with the burner, burns the solid residue generation for receiving the burner
Exhaust gas, and inject inert gas into the exhaust gas being collected into.
Optionally, the system further include:
Cooling packing device is exported with the wax of the vacuum distillation apparatus and is connected, for receiving by vacuum distillation
The wax being recovered to after processing, and cooling packing processing is carried out to the wax being recovered to, to obtain finished product wax.
Optionally, the system further include:
Attemperator, for being mixed before carrying out vacuum distillation processing to the mixed liquor to described in the vacuum distillation apparatus
The pipeline and container preheat and continuous heating that liquid to be flowed through are closed, so that the mixed liquor is in dissolved state always.
Optionally, temperature, the temperature of the temperature of the preheating and the continuous heating of the heating extraction be 50 DEG C-
100℃。
Optionally, the organic solvent is hydrocarbons of the carbon number between C5-C20.
Through the above technical solutions, carrying out heating extraction so that in the slag wax to the mixture of slag wax and organic solvent
Wax is dissolved in the organic solvent and obtains corresponding mixed liquor, and filters to isolate the solid residue insoluble in organic solvent,
And then vacuum distillation processing is carried out to the mixed liquor being separated by filtration and separates wax with organic solvent, organic matter is avoided with this
And the waste of wax resource, improve economic benefit.
The other feature and advantage of the embodiment of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is to further understand for providing to the embodiment of the present invention, and constitute part of specification, under
The specific embodiment in face is used to explain the present invention embodiment together, but does not constitute the limitation to the embodiment of the present invention.Attached
In figure:
Fig. 1 is a kind of basic flow chart of slag Lasaxing Oilfield method provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of slag Lasaxing Oilfield method provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of slag lasaxing Oilfield system provided in an embodiment of the present invention.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the embodiment of the present invention.It should be understood that this
Locate described specific embodiment and be merely to illustrate and explain the present invention embodiment, is not intended to restrict the invention embodiment.
Fig. 1 shows a kind of basic flow chart of slag Lasaxing Oilfield method provided in an embodiment of the present invention, as shown in Figure 1, will
Slag wax is placed in organic solvent, heating extraction processing is carried out to the mixture of slag wax and organic solvent, so that the wax in slag wax fills
Divide and be dissolved in organic solvent, to obtain corresponding mixed liquor.Separating treatment is filtered to obtained mixed liquor, filtering is slagged tap
Solid residue in wax insoluble in organic solvent.Vacuum distillation processing is carried out to the mixed liquor being separated by filtration, so that mixing
After being separated by filtration processing, wax therein separates liquid with organic solvent, so as to recycle the wax isolated.
Fig. 2 shows a kind of flow charts of slag Lasaxing Oilfield method provided in an embodiment of the present invention, as shown in Fig. 2, heating
In extraction process, heating temperature should be ensured that the wax in slag wax is in dissolved state and described organic in organic solvent
Solvent can be carbon number between C5-C20 hydrocarbons.The heating temperature and heating time of the heating extraction processing are not made sternly
Lattice limitation, it is to be understood that the heating temperature and heating time for improving heating extraction processing are conducive to recycle more from slag wax
More wax, and the heating temperature dissolution time for improving heating extraction processing can then reduce, in the feelings for comprehensively considering economic benefit
Under condition, can control heating temperature is 50-100 DEG C, and it is organic which can both guarantee that the wax in slag wax was dissolved completely in
In solvent, the waste of thermal resource will not be caused.
Vacuum distillation processing before and vacuum distillation treatment process in can also to the pipeline that mixed liquor to be flowed through with
And the media such as container carry out preheating and continuous heating respectively, so that it is guaranteed that the mixed liquor flowed through is in dissolved state, in favor of inciting somebody to action
Solid residue insoluble in organic solvent filters away, and wherein the temperature of the preheating and continuous heating can be 50-100 DEG C.
As shown in Fig. 2, the solid residue filtered out can also be dried using hot coasting medium, it is solid to recycle
The organic solvent on body residue surface, wherein the temperature of the hot coasting medium can be between 200-350 DEG C.
After vacuum distillation processing, the wax in mixed liquor is separated with organic solvent, can also will be isolated organic molten
Agent is reused, by isolated organic solvent continue on for heat extraction processing with reduce use organic solvent at
This.Furthermore, it is possible to carry out cooling to the molten state wax handled through the vacuum distillation, pack, to obtain finished product wax.It should
The purity of wax can achieve commercial requirements in finished product wax, can be used as industrial chemicals.
As shown in Fig. 2, can also be carried out at burning to the solid residue filtered out or the solid residue by being dried
Reason, specifically, burning processing are mainly used for making remaining wax burning conversion carbon dioxide and vapor in solid residue, into
And it can fill or other purposes.The temperature satisfaction of burning processing can convert wax to carbon dioxide and water, burning processing
Exhaust gas and waste residue are formed afterwards, which can reach general waste discharge standard, therefore can be handled according to general solid waste；
There may be some gaseous organic substance components in exhaust gas, it is therefore desirable to carry out purified treatment to it.It specifically, can be in indifferent gas
Under body protection, purified treatment is carried out to the exhaust gas that the burning disposal generates；Inert gas shielding is conducive to avoid at purification
Situations such as unexpected flash burn occurred in reason, to improve operational safety.
In addition, heat can be generated in burning process, in order to make full use of these heats, burning disposal can use
Above-mentioned heat treatment needed for the heat of generation carries out slag Lasaxing Oilfield provides heat without outside at this time or only needs to provide a small amount of heat
The dissolution of wax in organic solvent in slag wax can be realized in amount, therefore can reach maximum energy-saving effect.
Embodiment of the method
The process object of the present embodiment is that F- T synthesis is formed by slag wax, wherein the wax containing 30-40wt%.Such as Fig. 1
Shown, slag Lasaxing Oilfield method includes the following steps:
1, heating extraction dissolution process
Slag wax is placed in diesel oil and is heated, is dissolved completely in the wax in slag wax in organic solvent；Wherein, add
Hot temperature can be 50-100 DEG C, preferably 60-90 DEG C；
2, it is separated by filtration
Separation is filtered to the slag wax mixed solution of above-mentioned heated extraction processing, is filtered out insoluble in mixed liquor
Solid residue
3, it is evaporated under reduced pressure
Vacuum distillation processing is carried out to the mixture of above-mentioned wax and organic solvent, separates wax and organic solvent；Wherein, exist
Slag wax institute before implementing vacuum distillation processing and during implementing vacuum distillation processing, with heated extraction dissolution process
The temperature of the medium (such as pipeline, container, filtering, distillation separator etc.) of contact should be guaranteed that material is in dissolved state,
Heating temperature is 50-100 DEG C, preferably 60-90 DEG C.
4, burning is handled
Burning processing is carried out to the solid residue obtained after above-mentioned be separated by filtration, turns remaining wax burning in solid residue
Carbon dioxide and vapor are turned to, and then can be filled or other purposes.
In particular, can be protected using inert gas in purified treatment, to avoid occurring in purified treatment
Unexpected flash burn situations such as, improve operational safety.
The wax in solid residue in order to further recycle separating at high temperature formation, can also be to solid before burning processing
Residue repeatedly extracts dissolution process, recycles wax remaining in solid residue.It further, can also be to solid before burning processing
Body residue is dried under thermal inertia media environment, and organic solvent is recycled after tail gas condensing.
The slag Lasaxing Oilfield method of the present embodiment is separated by filtration, decompression is steamed by carrying out extraction heat dissolution to the wax in slag wax
It evaporates, to realize the recycling of wax in slag wax, the waste of wax resource is largely avoided on the basis of slag wax environment protection emission, it is real
Show making full use of for wax resource, improves economic benefit.
Fig. 3 shows a kind of structural schematic diagram of slag lasaxing Oilfield system provided in an embodiment of the present invention, as shown in figure 3, should
System may include heating extraction equipment, filtering separation device and vacuum distillation apparatus, wherein the heating extraction equipment, include
Heating extraction entrance and heating extraction outlet, carry out heating extraction for the mixture to received slag wax and organic solvent, with
It is dissolved in the wax in the slag wax in the organic solvent and obtains corresponding mixed liquor；The filtering separation device includes filtering
It separate inlet opening and is separated by filtration liquid outlet and is separated by filtration solid outlet, it is described to be separated by filtration entrance and heating extraction
Outlet connection for receiving the mixed liquor of heating extraction outlet output, and is filtered separation to the mixed liquor,
Filter out the solid residue in the slag wax insoluble in the organic solvent；The vacuum distillation apparatus, comprising vacuum distillation entrance,
Wax outlet and organic solvent outlet, the vacuum distillation entrance are connect with the liquid outlet that is separated by filtration, for receiving warp
The mixed liquor that is separated by filtration simultaneously carries out vacuum distillation processing to the mixed liquor being separated by filtration, so that the wax
It is separated with the organic solvent, wherein the organic solvent outlet is connect with heating extraction entrance, is exported by the wax
Export the wax isolated.
In heating extraction process, heating temperature should be ensured that the wax in slag wax is in dissolved form in organic solvent
State and the organic solvent can be carbon number between C5-C20 hydrocarbons.To the heating temperature of the heating extraction processing
It is not limited strictly with heating time, it is to be understood that heating temperature and the heating time for improving heating extraction processing are advantageous
In recycling more waxes from slag wax, and the heating temperature dissolution time for improving heating extraction processing can then reduce, in synthesis
In the case where considering economic benefit, can control heating temperature is 50-100 DEG C, which can both guarantee in slag wax
Wax is dissolved completely in organic solvent, will not cause the waste of thermal resource.
As shown in figure 3, the system can also include attemperator, for before vacuum distillation processing and at vacuum distillation
Can also the media such as the pipeline and container that mixed liquor to be flowed through be carried out with preheating and continuous heating respectively during reason, thus
The mixed liquor for ensuring to flow through is in dissolved state, in favor of filtering away the solid residue for not dissolving in organic solvent, wherein should
The temperature of preheating and continuous heating can be 50-100 DEG C.
The system can also include drying device, include residue entrance, drying solid outlet and dry liquid outlet, institute
It states residue entrance to connect with the solid outlet that is separated by filtration, which can use hot coasting medium and consolidate to what is filtered out
Body residue is dried, and will recycle the organic solvent on the solid residue surface to institute by dry liquid outlet
It states in heating extraction equipment, to recycle the organic solvent on solid residue surface, wherein the temperature of the hot coasting medium can be between
200-350℃。
After vacuum distillation processing, the wax in mixed liquor is separated with organic solvent, can also will be isolated organic molten
Agent is reused, by isolated organic solvent continue on for heat extraction processing with reduce use organic solvent at
This.In addition, also system further includes cooling packing device, exports and connect with the wax of the vacuum distillation apparatus, for receiving
The wax being recovered to after vacuum distillation is handled can carry out the molten state wax handled through the vacuum distillation cold
But, pack, to obtain finished product wax.The purity of wax can achieve commercial requirements in the finished product wax, can be used as industrial chemicals.
As shown in figure 3, the system can also include burner, the burner and the solid outlet that is separated by filtration connect
It connects or drying solid outlet, the solid for receiving the solid residue filtered out or being dried into mistake is residual
Slag can carry out burning processing to the solid residue filtered out or the solid residue by being dried, specifically, at the burning
Reason is mainly used for making remaining wax burning conversion carbon dioxide and vapor in solid residue, and then can fill or other use
On the way.The temperature satisfaction of burning processing can convert wax to carbon dioxide and water, form exhaust gas and waste residue after burning processing,
The waste residue can reach general waste discharge standard, therefore can be handled according to general solid waste；There may be one in exhaust gas
A little gaseous organic substance components, it is therefore desirable to which purified treatment is carried out to it.Specifically, also system further includes purification device, and described
Burner connection burns the exhaust gas that the solid residue generates for receiving the burner, and to described in being collected into
Inert gas is injected in exhaust gas, purified treatment can be carried out to the exhaust gas that the burning disposal generates under inert gas protection；
Inert gas shielding is conducive to situations such as unexpected flash burn for avoiding occurring in purified treatment, to improve operational safety.
In addition, heat can be generated in burning process, in order to make full use of these heats, burning disposal can use
Above-mentioned heat treatment needed for the heat of generation carries out slag Lasaxing Oilfield provides heat without outside at this time or only needs to provide a small amount of heat
The dissolution of wax in organic solvent in slag wax can be realized in amount, therefore can reach maximum energy-saving effect.
Installation practice
The slag lasaxing Oilfield system of the present embodiment includes: heating extraction equipment, is extracted comprising heating extraction entrance and heating
Mouthful；Filtering separation device, comprising being separated by filtration entrance and being separated by filtration liquid outlet and be separated by filtration solid outlet, the mistake
Filter separate inlet opening and heating extraction outlet connection；Vacuum distillation apparatus exports and organic comprising vacuum distillation entrance, wax
Solvent outlet, the vacuum distillation entrance are connect with the liquid outlet that is separated by filtration；Drying device comprising residue entrance, is done
Dry solid outlet and dry liquid outlet, the residue entrance are connect with the solid outlet that is separated by filtration；Burner, with
It is described to be separated by filtration solid outlet connection or drying solid outlet；Purification device is connect, for connecing with the burner
It receives the burner and burns the exhaust gas that the solid residue generates, cooling packing device, the institute with the vacuum distillation apparatus
State wax outlet connection.
In above-mentioned slag lasaxing Oilfield system, heating extraction dissolver is used under heating state, fills the wax in slag wax
Divide and be dissolved in organic solvent, such as heat medium can be electric heating wire or process steam, heating temperature can be 50-
100 DEG C, preferably 60-90 DEG C；
Filtering separation device is used for the liquid and insoluble solid in the slag wax mixed solution after heated extraction dissolution process
The separation of body residue；It is understood that filtering separation device should can be in the feelings of dissolved state guaranteeing the wax in slag wax
Implement separation, such as closed flame filter press etc. under condition.
Vacuum distillation apparatus is used to make wax and organic solvent separation after filtering, thus recycling wax and organic solvent；Subtract
Press distilling apparatus can be for conventional rectifying device, such as vacuum rectification tower etc..
Remaining wax burning conversion carbon dioxide and vapor burner can for making in solid residue for burner
Think conventional burning facility, such as incinerator etc..In particular, burner can be made using the high temperature logistics in combustion process
For heat source next life heat generating medium, such as steam, hot water etc.；That is, burner also has thermal medium outlet, which can
To be connect with the pipeline of heating extraction dissolver or/and attemperator, so that the heat that burning processing generates is taken full advantage of,
Maximum energy-saving effect is reached.
Drying device is for being dried filtered solid residue, the solid of entrance and filtering separation device
Outlet connection, outlet are connect with the material inlet of burner；Further, drying device can also extract dissolution dress with heating
The organic solvent entrance connection set, can further recycle the organic solvent on solid residue surface.
Above-mentioned slag lasaxing Oilfield system further includes purification device, with inert gas import and exhaust gas inlet, purification device
Exhaust gas inlet connect with the gas vent of the burner, inert gas import is connect with inert gas source.Purification device is useless
Gas carries out that inert gas shielding is added when purified treatment, can be conducive to the feelings such as the unexpected flash burn for avoiding occurring in purified treatment
Condition, to improve operational safety.
In addition, above-mentioned slag lasaxing Oilfield system can also include cooling packing device, exported with the wax of vacuum distillation apparatus
Connection；Further, cooling carried out to the wax for obtaining liquid through the vacuum distillation, packed, to obtain finished product wax.
Further, the outer wall of each device connecting pipe be equipped with heat insulation and heating equipment, such as electric heating wire or
Steam tracing etc., to make dissolved slag wax mixture be maintained at dissolved state, so that it is real with insoluble solid residue
Now separate.
The slag lasaxing Oilfield system of the present embodiment heats extraction dissolver by setting and extracts dissolution to the wax in slag wax,
And filter device and vacuum distillation apparatus is arranged to separate wax extracted, thus realize in slag wax the recycling of wax and
It makes full use of, the waste of wax resource is largely avoided on the basis of slag wax environment protection emission, improves economic benefit.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
The optional embodiment of the embodiment of the present invention is described in detail in conjunction with attached drawing above, still, the embodiment of the present invention is simultaneously
The detail being not limited in above embodiment can be to of the invention real in the range of the technology design of the embodiment of the present invention
The technical solution for applying example carries out a variety of simple variants, these simple variants belong to the protection scope of the embodiment of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the embodiment of the present invention pair
No further explanation will be given for various combinations of possible ways.
It will be appreciated by those skilled in the art that implementing the method for the above embodiments is that can pass through
Program is completed to instruct relevant hardware, which is stored in a storage medium, including some instructions are used so that single
Piece machine, chip or processor (processor) execute all or part of the steps of each embodiment the method for the application.And it is preceding
The storage medium stated includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), magnetic or disk.
In addition, any combination can also be carried out between a variety of different embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is violated, equally should be considered as disclosure of that of the embodiment of the present invention.
Claims (18)
1. a kind of slag Lasaxing Oilfield method, which is characterized in that this method comprises:
Heating extraction is carried out to the mixture of slag wax and organic solvent, so that the wax in the slag wax is dissolved in the organic solvent
In and obtain corresponding mixed liquor；
Separation is filtered to the mixed liquor, filters out the solid residue in the slag wax insoluble in the organic solvent；
Vacuum distillation processing is carried out to the mixed liquor being separated by filtration, so that the wax and organic solvent separation,
The wax isolated.
2. slag Lasaxing Oilfield method according to claim 1, which is characterized in that this method further include: recycling is steamed by decompression
Evaporate the organic solvent isolated after processing.
3. slag Lasaxing Oilfield method according to claim 1, which is characterized in that this method further include:
The solid residue filtered out is dried, and recycles the organic solvent on the solid residue surface.
4. slag Lasaxing Oilfield method according to claim 1 or 3, which is characterized in that this method further include:
Burn the solid residue filtered out.
5. slag Lasaxing Oilfield method according to claim 4, which is characterized in that this method further include:
It collects and burns the exhaust gas that the solid residue generates, and inject inert gas into the exhaust gas being collected into.
6. slag Lasaxing Oilfield method according to claim 1, which is characterized in that this method further include:
Cooling packing processing is carried out to the wax being recovered to after vacuum distillation is handled, to obtain finished product wax.
7. slag Lasaxing Oilfield method according to claim 1, which is characterized in that this method further include:
It is preheated carrying out the preceding pipeline and container to be flowed through to the mixed liquor of vacuum distillation processing to the mixed liquor
And continuous heating, so that the mixed liquor is in dissolved state always.
8. slag Lasaxing Oilfield method according to claim 7, which is characterized in that the temperature of the heating extraction, the preheating
Temperature and the continuous heating temperature be 50 DEG C -100 DEG C.
9. slag Lasaxing Oilfield method according to claim 1, which is characterized in that the organic solvent is carbon number between C5-C20
Hydrocarbons.
10. a kind of slag lasaxing Oilfield system, which is characterized in that the system includes:
Extraction equipment is heated, comprising heating extraction entrance and heating extraction outlet, for received slag wax and organic solvent
Mixture carries out heating extraction, so that the wax in the slag wax is dissolved in the organic solvent and obtains corresponding mixed liquor；
Filtering separation device, it is described comprising being separated by filtration entrance and being separated by filtration liquid outlet and be separated by filtration solid outlet
It is separated by filtration entrance and heating extraction outlet connection, for receiving the mixed liquor of heating extraction outlet output,
And separation is filtered to the mixed liquor, filter out the solid residue in the slag wax insoluble in the organic solvent；
Vacuum distillation apparatus includes vacuum distillation entrance, wax outlet and organic solvent outlet, the vacuum distillation entrance and institute
It states and is separated by filtration liquid outlet connection, for receiving the mixed liquor being separated by filtration and to described in being separated by filtration
Mixed liquor carries out vacuum distillation processing, so that the wax and organic solvent separation, wherein the organic solvent outlet and institute
State heating extraction entrance connection, the wax isolated by wax outlet output.
11. slag lasaxing Oilfield system according to claim 10, which is characterized in that the decompression distilling apparatus is also used to logical institute
It states organic solvent outlet the organic solvent isolated is recycled in the heating extraction equipment.
12. slag lasaxing Oilfield system according to claim 10, which is characterized in that the system further include:
Drying device includes residue entrance, drying solid outlet and dry liquid outlet, the residue entrance and the filtering
Solid outlet connection is separated, for the solid residue received to be dried, and is gone out by the dry liquid
Mouth will recycle the organic solvent on the solid residue surface into the heating extraction equipment.
13. slag lasaxing Oilfield system described in 0 or 12 according to claim 1, which is characterized in that the system further include:
Burner, with it is described be separated by filtration solid outlet connect or the drying solid export, for receiving the institute filtered out
Solid residue or the solid residue into drying process excessively are stated, and burns the solid residue received.
14. slag lasaxing Oilfield system according to claim 13, which is characterized in that the system further include:
Purification device is connect with the burner, burns the useless of the solid residue generation for receiving the burner
Gas, and inert gas is injected into the exhaust gas being collected into.
15. slag lasaxing Oilfield system according to claim 10, which is characterized in that the system further include:
Cooling packing device is exported with the wax of the vacuum distillation apparatus and is connected, handles for receiving by vacuum distillation
The wax being recovered to afterwards, and cooling packing processing is carried out to the wax being recovered to, to obtain finished product wax.
16. slag lasaxing Oilfield system according to claim 10, which is characterized in that the system further include:
Attemperator, it is preceding to mixed liquor described in the vacuum distillation apparatus for carrying out vacuum distillation processing to the mixed liquor
The pipeline and container to be flowed through preheat and continuous heating, so that the mixed liquor is in dissolved state always.
17. slag lasaxing Oilfield system according to claim 16, which is characterized in that the temperature, described pre- of the heating extraction
The temperature of heat and the temperature of the continuous heating are 50 DEG C -100 DEG C.
18. slag lasaxing Oilfield system according to claim 10, which is characterized in that the organic solvent is carbon number between C5-
The hydrocarbons of C20.
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| CN201910591359.3A CN110355180A (en) | 2019-07-02 | 2019-07-02 | Wax residue treatment method and system |
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Cited By (1)
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| CN111991905A (en) * | 2020-07-30 | 2020-11-27 | 国家能源集团宁夏煤业有限责任公司 | Method and device for solid-liquid separation of slurry discharged from slurry bed |
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