CN107227166A - A kind of lightweight oil-shale grading dry distillation equipment - Google Patents
A kind of lightweight oil-shale grading dry distillation equipment Download PDFInfo
- Publication number
- CN107227166A CN107227166A CN201710672360.XA CN201710672360A CN107227166A CN 107227166 A CN107227166 A CN 107227166A CN 201710672360 A CN201710672360 A CN 201710672360A CN 107227166 A CN107227166 A CN 107227166A
- Authority
- CN
- China
- Prior art keywords
- sandblasting
- oil
- shale
- destructive distillation
- grading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 57
- 239000004058 oil shale Substances 0.000 title claims abstract description 38
- 238000005488 sandblasting Methods 0.000 claims abstract description 68
- 238000001354 calcination Methods 0.000 claims abstract description 38
- 230000006835 compression Effects 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 28
- 239000008187 granular material Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 10
- 238000012216 screening Methods 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000004821 distillation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 20
- 241000196324 Embryophyta Species 0.000 description 19
- 239000003921 oil Substances 0.000 description 14
- 239000004576 sand Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003027 oil sand Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/30—Other processes in rotary ovens or retorts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/06—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of oil shale and/or or bituminous rocks
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/02—Multi-step carbonising or coking processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a kind of lightweight oil-shale grading dry distillation equipment, including reducing mechanism, compression grading plant and gas and oil separating plant, sandblasting destructive distillation device, filter, oil gas deduster and the oil-collecting device being sequentially connected, wherein：Compression grading plant includes compression grading room, mesh screen moving up and down and the one-level destructive distillation calcining compartment being sequentially connected, wherein the diameter of compression grading room is more than the diameter of one-level destructive distillation calcining compartment；Mesh screen moving up and down drives it to move back and forth up and down screening oil shale particle in compression grading room by moving up and down power source；Granule wax shale outlet is additionally provided with close to the tip position of compression grading room, granule wax shale is delivered to sandblasting destructive distillation device by granule wax shale outlet by delivery pipe, and sandblasting destructive distillation device includes vertical sandblasting section and two grades of calciner plants；One-level destructive distillation calcining compartment is also connected with two grades of calciner plants.The distillation system of the present invention has simplified equipment, reduces cost, improves the oil-collecting ratio of oil shale.
Description
Technical field
The present invention relates to oil shale distillation system technical field, more particularly to a kind of lightweight oil-shale grading dry distillation is set
It is standby.
Background technology
Solid or the organic matter course of reaction of heat resolve under isolation air conditionses are referred to as destructive distillation, and the result of destructive distillation is raw
Into various gases, steam and solid residue, the present invention is mainly using oil-sand as main destructive distillation raw material.Containing obtained by destructive distillation is flammable
The slag of solid product carbon residue is referred to as semicoke.
Current hot solid carrier devolatilization system, raw material enter reactor, semicoke from reactor enter semicoke calciner,
It is all to be used as sealing medium in itself by material that heat carrier enters reactor from semicoke calciner, prevents each input and output material of reactor
The leakage of mouth oil gas, such as Canadian ATP stoves.But because mass flow is unstable during input and output material, material envelope is formed not
It is stable, thus air leakage is serious, oil-collecting ratio reduction.For the destructive distillation of thin oil-sand, because destructive distillation slag particle degree is thinner, made with destructive distillation slag
For heat carrier, the airborne dust produced in the reactor is very big, and the dust content in oil gas is very high, adds next procedure Oil-gas Separation
Difficulty.Especially for the higher oil-sand of calcium carbonate content (such as Indonesia's step lands on the island oil-sand), the carbonic acid during semicoke is calcined
The product fineness that calcium is decomposed is thinner, and thinner slag enters reactor as heat carrier can make oil gas dust content higher, oil gas point
From being more difficult to.
The typical device for granule wax shale destructive distillation has three kinds abroad, and a kind of is the ATP stoves of Australia
(Alberea-TaciukProcessor), the device is solid thermal carriers swinging gas retort, and equipment is huge, complicated, dynamic
Power consumption is big, fluctuation of service, and frequent shutdown maintenance, the utilization of capacity is only 50% or so, most long once also only continuously to have run 96
My god.One kind is Estonian Ge Luote (Galoter) stove, can handle 0-25mm oil shale, disposal ability 3000t/d,
The problem of equipment is present is that running rate is not high, and heavy oil proportion is big, there is machine operation, oil gas dedusting and flue gas ash removal etc.
Problem.The third is the oil shale retorting technologies of Tosco- II developed by Tosco companies of the U.S., for handling the oily page of little particle
Rock, the system uses porcelain ball for heat carrier, and oil recovery rate is up to 90%, and the problem of equipment is present is：Equipment investment is high, maintenance capacity
Greatly, the thermal efficiency is not high, the latent heat in oil shale semi-coke（Fixed carbon）Do not utilize.
The granule destructive distillation device of nearly 2 years studies in China has two kinds, and a kind of is the DG technologies of Dalian University of Technology, be with
Solid is heat carrier, but not yet builds up industrial experiment device；Second is the oil shale fluidized bed dry of Shanghai Bo Sheng companies development
Evaporate and decarbonization process, powdery oil shale and the contact of high-temperature gas heat carrier, fluidized retoring, but oil shale need to be crushed to 0.3mm
Following particle diameter, apparatus and process is complicated.
CN200810228892. a kind of gas retort with vibrated bed is disclosed, oil shale is in gas retort by using vibration
Bed turns back to promote carries out destructive distillation with gas heat carrier under multiple mixed flow operating mode.The device is entered using thermal circulation gas with oil shale
Row heat exchange, a part of heat scatters and disappears in external pipe circulation, and heat utilization ratio is low, and device structure is complicated.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, oil shale is pressed according to granular size the invention provides one kind
Division level calcining, and accompany the grading dry distillation system of calcining in second level calcining sandblasting.
The technical solution adopted in the present invention is：A kind of lightweight oil-shale grading dry distillation equipment, including be sequentially connected
Reducing mechanism, compression grading plant and sandblasting destructive distillation device, filter, gas and oil separating plant, oil gas deduster, oil-collecting device,
Wherein：Compression grading plant is tubular structure, and it include being sequentially connected under upper compression grading room, can move up and down
Mesh screen and one-level destructive distillation calcining compartment, wherein compression grading room diameter be more than one-level destructive distillation calcining compartment diameter；Can on move down
Dynamic mesh screen drives it to move back and forth up and down screening oil shale particle in compression grading room by moving up and down power source；It is close
The tip position of compression grading room is additionally provided with granule wax shale outlet, and granule wax shale outlet passes through delivery pipe by little particle
Oil shale is delivered to sandblasting destructive distillation device, and sandblasting destructive distillation device includes vertical sandblasting section and two grades of calciner plants；One-level is done
Evaporate calcining compartment and be also connected with two grades of calciner plants.
Further, delivery pipe is additionally provided with rotation spiral point at the vertical sandblasting section tip position of sandblasting destructive distillation device
Rod is dissipated, vertical sandblasting section outside is provided with sand blasting unit, and sand blasting unit passes through some oblique into 30-55 degree angle lappings with vertical direction axle
The sandblasting into vertical sandblasting section of the nozzle of upper injection.
Further, sand blasting unit connects sandblasting control device by relay, and sandblasting control device passes through relay control
Sand blasting unit processed is intermittently to the vertical sandblasting section sandblasting of sandblasting destructive distillation device.
Further, two grades of calciner plants are rotatably connected to the bottom position of vertical sandblasting section, and two grades of calcinings
Device generally ball kettle shape structure, and two grades of calciner plants are dynamic by two grades of calcining rotating bases of its bottom and two grades of calcinings
Power source drives its rotation calcining.
Further, mesh screen moving up and down drives it past up and down by being classified the upright slide rail of chamber interior walls located at compression
Multiple motion, and then ensure the stability of mesh screen screening.
Compared with prior art, the beneficial effects of the invention are as follows：A kind of lightweight oil-shale grading dry distillation of the present invention is set
It is standby, calcining is classified after oil shale is compressed according to granular size first, and calcining is accompanied in second level calcining sandblasting, together
When one-level destructive distillation calcined to the oil gas terminated continue to lead to two grades of calciners, carry out two grades of calcinings simultaneously with the dry sand of spirt,
Then filtered successively, dedusting and receive oil, equipment has been simplified, while improving the efficiency of oil shale retorting.
And a kind of lightweight oil-shale grading dry distillation equipment of the present invention, using mesh screen moving up and down above and below
Mobile power source drives it to move back and forth up and down screening oil shale particle in compression grading room, by bulky grain oil shale and small
Grain oil shale is separately handled, and individually controls it to calcine, and then targetedly using the calcining power source of two calcining points,
Without individually grinding oil shale, pulverising apparatus configuration is reduced, cost is reduced, and ensure that it is sufficiently calcined,
Further improve the oil-collecting ratio of oil shale.
Brief description of the drawings
Fig. 1 is a kind of structural representation of one embodiment of lightweight oil-shale grading dry distillation equipment；
Wherein：1- reducing mechanisms, 2- compression grading plants, 3- gas and oil separating plants, 4- sandblasting destructive distillation devices, the vertical sandblastings of 41-
Section, bis- grades of calciner plants of 42-, bis- grades of calcining rotating bases of 43-, bis- grades of calcining power sources of 44-；5- compresses grading room, small of 51-
The outlet of grain oil shale；6- mesh screens moving up and down, 7- one-level destructive distillation calcining compartments, 8- delivery pipes, 9- oil gas dedusters, 10- mistakes
Filter, 11- oil-collecting devices, 12- rotates spiral dispersing rod, 13- sand blasting units, 14- relays, 15- sandblasting control devices, 16-
Move up and down power source, 17- upright slide rails.
Embodiment
In order to deepen the understanding of the present invention, the present invention is further described with reference to the accompanying drawings and examples, the implementation
Example is only used for explaining the present invention, and protection scope of the present invention is not constituted and limited.
As shown in figure 1, a kind of lightweight oil-shale grading dry distillation equipment, including be sequentially connected reducing mechanism 1, compression point
Stage arrangement 2 and sandblasting destructive distillation device 4, filter 10, gas and oil separating plant 3, oil gas deduster 9 and oil-collecting device 11, wherein：Pressure
Division stage arrangement 2 is tubular structure, and it includes the compression grading room 5, the net moving up and down that are sequentially connected under upper
Sieve 6 and one-level destructive distillation calcining compartment 7, wherein the diameter of compression grading room 5 is more than the diameter of one-level destructive distillation calcining compartment 7；Can on move down
Dynamic mesh screen 6 drives it to move back and forth up and down screening oil shale particle in compression grading room 5 by moving up and down power source 16；
Granule wax shale outlet 51 is additionally provided with close to the tip position of compression grading room 5, granule wax shale outlet 51 passes through conveying
Granule wax shale is delivered to sandblasting destructive distillation device 4 by pipe 8, and sandblasting destructive distillation device 4 includes vertical sandblasting section 41 and two grades
Calciner plant 42；One-level destructive distillation calcining compartment 7 is also connected with two grades of calciner plants 42.
In the above-described embodiments, delivery pipe 8 is additionally provided with vertical sandblasting 41 tip positions of section of sandblasting destructive distillation device 4
Spiral dispersing rod 12 is rotated, the vertical outside of sandblasting section 41 is provided with sand blasting unit 13, and sand blasting unit 13 passes through some and vertical direction
The nozzle that axle sprays into 30-55 degree angle lappings obliquely sandblasting into vertical sandblasting section 41, thus ensure to throw into sand can be abundant
Ground is sufficiently contacted with rotating the sand disperseed on spiral dispersing rod 12 directly, as far as possible by the oily page of the little particle separated
Rock is refined again, because sand can be told somebody what one's real intentions are with cycling and reutilization, cost.
In the above-described embodiments, sand blasting unit 13 connects sandblasting control device 15 by relay 14, so as to realize sandblasting
The intermittent work of device 13, intermittently sandblasting can reasonably adjust the calcining sand amount in two grades of calciner plants, it is ensured that two grades
Calciner plant has higher calcination efficiency, and sandblasting control device 15 controls sand blasting unit 13 intermittently to spray by relay 14
Vertical sandblasting 41 sandblastings of section of sand destructive distillation device 4.
In the above-described embodiments, two grades of calciner plants 42 are rotatably connected to the bottom position of vertical sandblasting section 41, and
And two grades of calciner plants 42 generally ball kettle shape structure, two grades of calcining effects are preferable, and two grades of calciner plants 42 pass through its bottom
Two grades of calcining rotating bases 43 in portion and two grades of calcining power sources 44 drive its rotation calcining, it is ensured that two grades of calcinings can more fill
Ground is divided to complete.
In the above-described embodiments, mesh screen 6 moving up and down passes through the band of upright slide rail 17 located at the compression inwall of grading room 5
Move it to pump, and then ensure the stability of mesh screen screening, while so that compression grading plant 2 has certain compression
Performance.
What embodiments of the invention were announced is preferred embodiment, but is not limited thereto, the ordinary skill people of this area
Member, easily according to above-described embodiment, understands the spirit of the present invention, and makes different amplifications and change, but as long as not departing from this
The spirit of invention, all within the scope of the present invention.
Claims (5)
1. a kind of lightweight oil-shale grading dry distillation equipment, it is characterised in that：Including the reducing mechanism being sequentially connected（1）, compression
Grading plant（2）With sandblasting destructive distillation device（4）, filter（10）, gas and oil separating plant（3）, oil gas deduster（9）, receive oil dress
Put（11）, wherein：
Compress grading plant（2）For tubular structure, and it includes the compression grading room that is sequentially connected under upper（5）, can on
The mesh screen of lower movement（6）With one-level destructive distillation calcining compartment（7）, wherein compressing grading room（5）Diameter be more than one-level destructive distillation calcining compartment
（7）Diameter；Mesh screen moving up and down（6）By moving up and down power source（16）It is driven in compression grading room（5）On interior
Under move back and forth screening oil shale particle；
Close to compression grading room（5）Tip position be additionally provided with granule wax shale outlet（51）, granule wax shale outlet
（51）Pass through delivery pipe（8）Granule wax shale is delivered to sandblasting destructive distillation device（4）, and sandblasting destructive distillation device（4）Including
Vertical sandblasting section（41）With two grades of calciner plants（42）；
One-level destructive distillation calcining compartment（7）It is also connected with two grades of calciner plants（42）.
2. a kind of lightweight oil-shale grading dry distillation equipment according to claim 1, it is characterised in that：Delivery pipe（8）Lean on
Nearly sandblasting destructive distillation device（4）Vertical sandblasting section（41）Rotation spiral dispersing rod is additionally provided with tip position（12）, vertical sandblasting
Section（41）Outside is provided with sand blasting unit（13）, sand blasting unit（13）By some oblique into 30-55 degree angle lappings with vertical direction axle
The nozzle of upper injection to vertical sandblasting section（41）Interior sandblasting.
3. a kind of lightweight oil-shale grading dry distillation equipment according to claim 2, it is characterised in that：Sand blasting unit（13）
Pass through relay（14）Connect sandblasting control device（15）, sandblasting control device（15）Pass through relay（14）Control sand blasting unit
（13）Intermittently to sandblasting destructive distillation device（4）Vertical sandblasting section（41）Sandblasting.
4. a kind of lightweight oil-shale grading dry distillation equipment according to claim 1-3 any one, it is characterised in that：Two
Level calciner plant（42）It is rotatably connected to vertical sandblasting section（41）Bottom position, and two grades of calciner plants（42）It is overall
For ball kettle shape structure, and two grades of calciner plants（42）Pass through two grades of calcining rotating bases of its bottom（43）It is dynamic with two grades of calcinings
Power source（44）Drive its rotation calcining.
5. a kind of lightweight oil-shale grading dry distillation equipment according to claim 4, it is characterised in that：It is moving up and down
Mesh screen（6）By located at compression grading room（5）The upright slide rail of inwall（17）Drive it to pump, and then ensure mesh screen
The stability of screening.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672360.XA CN107227166A (en) | 2017-08-08 | 2017-08-08 | A kind of lightweight oil-shale grading dry distillation equipment |
| PCT/CN2018/000154 WO2019029118A1 (en) | 2017-08-08 | 2018-04-23 | Classification destructive distillation equipment for lightweight oil shale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672360.XA CN107227166A (en) | 2017-08-08 | 2017-08-08 | A kind of lightweight oil-shale grading dry distillation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107227166A true CN107227166A (en) | 2017-10-03 |
Family
ID=59958202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710672360.XA Pending CN107227166A (en) | 2017-08-08 | 2017-08-08 | A kind of lightweight oil-shale grading dry distillation equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107227166A (en) |
| WO (1) | WO2019029118A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019029118A1 (en) * | 2017-08-08 | 2019-02-14 | 江苏鹏飞集团股份有限公司 | Classification destructive distillation equipment for lightweight oil shale |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61190589A (en) * | 1986-02-07 | 1986-08-25 | Nippon Kokan Kk <Nkk> | Dry distillation of oil shale |
| CN102807882B (en) * | 2012-08-24 | 2013-10-30 | 中国中材国际工程股份有限公司 | Dry distillation method of small-particle oil shale |
| CN103146406B (en) * | 2013-03-20 | 2017-03-15 | 李伟 | A kind of granule wax shale oil refining apparatus and method |
| CN107227166A (en) * | 2017-08-08 | 2017-10-03 | 江苏鹏飞集团股份有限公司 | A kind of lightweight oil-shale grading dry distillation equipment |
| CN207108913U (en) * | 2017-08-08 | 2018-03-16 | 江苏鹏飞集团股份有限公司 | A kind of lightweight oil-shale grading dry distillation equipment |
-
2017
- 2017-08-08 CN CN201710672360.XA patent/CN107227166A/en active Pending
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2018
- 2018-04-23 WO PCT/CN2018/000154 patent/WO2019029118A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019029118A1 (en) * | 2017-08-08 | 2019-02-14 | 江苏鹏飞集团股份有限公司 | Classification destructive distillation equipment for lightweight oil shale |
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| WO2019029118A1 (en) | 2019-02-14 |
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Application publication date: 20171003 |