CN2898028Y - Device for thermal cracking intermediate substance by cellulose - Google Patents
Device for thermal cracking intermediate substance by cellulose Download PDFInfo
- Publication number
- CN2898028Y CN2898028Y CNU2006201003826U CN200620100382U CN2898028Y CN 2898028 Y CN2898028 Y CN 2898028Y CN U2006201003826 U CNU2006201003826 U CN U2006201003826U CN 200620100382 U CN200620100382 U CN 200620100382U CN 2898028 Y CN2898028 Y CN 2898028Y
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- valve
- quartz glass
- glass tube
- liquid nitrogen
- mierocrystalline cellulose
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- Expired - Lifetime
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- 239000001913 cellulose Substances 0.000 title claims abstract description 28
- 229920002678 cellulose Polymers 0.000 title claims abstract description 28
- 238000004227 thermal cracking Methods 0.000 title abstract 2
- 239000000126 substance Substances 0.000 title description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 23
- 229910052724 xenon Inorganic materials 0.000 claims abstract description 16
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 12
- 229960005419 nitrogen Drugs 0.000 claims description 33
- 238000005336 cracking Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 241000282693 Cercopithecidae Species 0.000 claims description 5
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 4
- 238000001228 spectrum Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000002028 Biomass Substances 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 6
- 239000000571 coke Substances 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001722 flash pyrolysis Methods 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012075 bio-oil Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007416 differential thermogravimetric analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a device for the manufacture on the intermediate state material of cellulose thermal cracking. To place the xenon lamp on the focal spot of the ellipsoidal viewfinder, the light is converged to the plane mirror of 45 degree,downwards, a lens screen, a shutter and a quartz glass on the photocell with cellulose samples inside are connected with the device. The programmable controller is respectively connected with valve V1, V2,V3, V4 and V5,wherein, one end of V1 is connected with a nitrogen cylinder, one end of V2 is connected with the liquid nitrogen groove, the output terminals V1 and V2 are connected with those of V3 and V4 , the output terminal is connected with the end that connected with a terminal of the quartz glass tube, the other terminal is connected with the input end after being filtered, wherein the output end is connected with a gas chromatograph. The heat-up time for the sample of the utility model is controlled by the shutter. In order to accurately mensurate the heat-up time for the focal spot, where a photocell needs to be positioned, the switch between nitrogen and liquid nitrogen is controlled by the solenoid pilot actuated valve. The shuttle and the switch of solenoid pilot actuated valve are controlled by the PLC programmable controller.
Description
Technical field
The utility model relates to a kind of device for preparing Mierocrystalline cellulose thermo-cracking intermediate state material.
Background technology
Energy and environment are two principal themes of current social development.The development of economic society is important motivity with the energy, and the overexploitation of fossil oil and use have brought huge pressure to environment protection.Biomass are as a kind of important renewable and clean energy resource resource, to help to alleviate the pressure of national economy fast development to its reasonable development and efficient utilization to energy demand, can overcome simultaneously the environmental pollution that traditional fossil oil utilizes in the process to be caused, thereby the emphasis paid close attention to of the persons that become the working energy beyond suspicion.
As the important component part of biomass thermal chemical conversion technology, the biomass through pyrolysis technology can be high-grade liquid fuel with Wood Adhesives from Biomass---bio oil and important chemical product are subjected to extensive concern to its research and application.Mierocrystalline cellulose has occupied almost half content as the main ingredient of biomass in biomass material, its thermo-cracking behavior embodies the thermo-cracking rule of biomass integral body to a great extent, and is therefore significant to the research of Mierocrystalline cellulose thermo-cracking mechanism.
The investigator has carried out a large amount of research to cellulosic thermo-cracking mechanism both at home and abroad, and " Broido-Shafizadeh " model is widely accepted.At a lower temperature, the process of a polymerization degree reduction fast of Mierocrystalline cellulose thermo-cracking experience, the intermediate state material of formation low polymerization degree; This material is extremely unstable under comparatively high temps, and lifetime is less than 1s, under the free radical effect further degraded can take place, and makes cellulose macromolecule enter into the pyrolytic main phase, generates tar, coke and micromolecular light gas then.Wherein coke is two parallel competing reactions with the generation of tar, and low temperature helps the generation of coke, and it is the condensability fugitive constituent of feature product that higher temperatures then is partial to generate with the Levoglucosan.
The proposition of intermediate state material in Mierocrystalline cellulose thermo-cracking mechanism model is the focus that research workers dispute on owing to do not provide compellent experiment support always.But Donald is by differential thermogravimetric analysis, about 180 ℃, find a little endotherm(ic)peak, and, show certain reaction has taken place under the low temperature really by the detection of infrared spectra to the cellulosic structure in the pyrolytic process, cellulosic structure is changed, thereby obtain a kind of intermediateness compound.And the strongest proof will give the credit to the early 21st century, and Boutin has observed directly a kind of material of molten state in his experiment, and just the existence for the intermediate state material provides true foundation.Detect and find that this material at room temperature is a kind of water miscible solid, but be different from flash pyrolysis oil (being in a liquid state under the room temperature), by the chromaticness on-line analysis, its component is simple relatively, and kind also obviously is less than the flash pyrolysis oil.This test-results has proved no matter the generation of this intermediate state material is to be presented as uncontrollable process in the flash cracker of high heating intensity, still these become the important step of controlling whole pyrolytic process in heating installation at a slow speed at thermobalance, cellulosic thermo-cracking all must have been passed through this important physicochemical change process, thereby make cellulose macromolecule enter into the pyrolytic main phase, generate tar, coke and micromolecular light gas then.
Result of study for many years shows, directly obtaining in thermobalance of this intermediate state material is impossible realize, and the flash thermal cracker be if can effectively control its further decomposition, just its certain existence of susceptible of proof, and its generation and evolution process furtherd investigate.
Summary of the invention
After a large amount of tests and theoretical investigation to Mierocrystalline cellulose thermo-cracking mechanism, the purpose of this utility model is to provide a kind of device for preparing Mierocrystalline cellulose thermo-cracking intermediate state material.
The technical solution adopted in the utility model is to comprise heating system and cooling, Controlling System, wherein:
1) heating system: the focus place that xenon lamp is placed on ellipsoidal mirror, light converges at 45 ° plane mirror after reflection, plane mirror is connected to diaphragm, shutter straight down successively, is placed on photronic quartz glass tube, the Mierocrystalline cellulose sample is placed in the monkey, and places on the quartz glass plate of airtight quartz glass tube;
2) cooling, Controlling System: the PLC programmable logic controller is connected with the first valve V1, the second valve V2, the 3rd valve V3, the 4th valve V4 and the 5th valve V5 circuit respectively, the termination nitrogengas cylinder of the first valve V1, the termination liquid nitrogen tank of the second valve V2, the output terminal of the first valve V1 and the second valve V2 is connected with the input terminus of the 3rd valve V3 and the 4th valve V4, one end of the output termination quartz glass tube of the 4th valve V4, the other end of quartz glass tube is through connecing the input terminus of the 5th valve V5, the output termination gas chromatograph of the 5th valve V5 behind the filter.
The beneficial effect that the utlity model has is:
1) the high pressure xenon short-act lamp is as a kind of comparatively ideal pointolite, by obtaining the high focus point of heat flow rate per unit area after the ellipsoidal mirror reflection, main body reactor adopting quartz glass pipe, to infrared almost transparent, a large amount of radiations heat energies sees through silica tube and is radiated on the material, satisfies and obtains the requirement of the needed flash intensification of intermediate state material pyrolytic;
2) because the intermediate state material is at high temperature extremely unstable, in the moment that heating finishes, utilize the principle of liquid nitrogen vaporization heat absorption that it is cooled to room temperature, obtain the intermediate state material of stable existence;
3) control by the rotary shutter of steel the heat-up time of sample, its high-temperature capability height, response are soon.For accurately measuring the heat-up time at focus place, at the focus place photocell is set, can accurately measure between the logical light time at focus place;
4) switching of nitrogen and liquid nitrogen is by the on-off control of magnetic valve in the reaction process, and the switch of each valve and shutter is by a PLC Controlled by Programmable Controller, and is easy to use, reliability is high, response is fast;
5) power input of adjusting xenon lamp can change the heat flow rate per unit area at focus place, adjusts the heat-up time that can change sample switching time of shutter, thus the degree that the control reaction is carried out;
6) volatile gases that adopts high pure nitrogen that reaction is emitted carries out reactor, and is through directly entering the gas chromatographic detection composition behind a small amount of tar of filter elimination, convenient and swift.
Description of drawings
Fig. 1 is the structural principle synoptic diagram of instantaneously heating and fast cooling set for cellulose;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the enlarged view of cooling system.
Among the figure: 1, xenon lamp, 2, ellipsoidal mirror, 3, fan, 4, plane mirror, 5, quartz glass tube, 6, the Mierocrystalline cellulose sample, 7, nitrogengas cylinder, 8, liquid nitrogen tank, 9, strainer, 10, PLC programmable logic controller, 11, gas chromatograph, 12, workplatform, 13, diaphragm, 14, shutter, 15, photocell, 16, soft rubber ball.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises heating system and cooling, Controlling System, wherein:
1) heating system: the focus place that xenon lamp 1 is placed on ellipsoidal mirror 2, light converges at 45 ° plane mirror 4 after reflection, plane mirror 4 is connected to diaphragm 13, shutter 14 straight down successively, is placed on the quartz glass tube 5 of photocell 15, the Mierocrystalline cellulose sample is placed in the monkey, and place on the quartz glass plate of airtight quartz glass tube 5, photocell 15 is placed on the workplatform 12;
2) cooling, Controlling System: PLC programmable logic controller 10 respectively with the first valve V1, the second valve V2, the 3rd valve V3, the 4th valve V4 is connected with the 5th valve V5 circuit, the termination nitrogengas cylinder 7 of the first valve V1, the termination liquid nitrogen tank 8 of the second valve V2, the output terminal of the first valve V1 and the second valve V2 is connected with the input terminus of the 3rd valve V3 and the 4th valve V4, one end of the output termination quartz glass tube 5 of the 4th valve V4, the other end of quartz glass tube 5 is through connecing the input terminus of the 5th valve V5, the output termination gas chromatograph 11 of the 5th valve V5 behind the filter 9.
The high pressure xenon short-act lamp 1 that it is 3kW that this testing apparatus adopts a power is as source of radiation, and its luminous point brightness is higher, is a kind of comparatively ideal pointolite.Its luminous point is placed on the first focus place of ellipsoidal mirror 2, and light converges at second focus of reflective mirror after reflection.A fan 3 is set, to the outside heat radiation, to guarantee xenon lamp 1 and ellipsoidal mirror 2 trouble-free services at the ellipsoidal mirror back.A light beam steering device is set in the light path, i.e. the plane mirror 4 of 45 ° of placements of one side, light beam converges at a border circular areas after reflection straight down.Mierocrystalline cellulose sample 6 is placed in the monkey, and places on the quartz glass plate of airtight quartz glass tube 5.Adjust whole optical path, make sample be positioned at the high focal spot of heat flow rate per unit area just.The shutter 14 that be 0.01s by a time of response heat-up time of sample is controlled.For accurately measuring the heat-up time at focus place, a photocell 15 is set at the focus place, determine that accurately its sensitivity is 0.01s between the logical light time at focus place.The Mierocrystalline cellulose sample 6 that takes a morsel is tiled in the crucible bottom surface, is placed on the focus place in the quartz glass tube 5, and soft rubber ball 16 makes reactive system be in closed state beyond the Great Wall, and connects total system.Open xenon lamp 1 and press the test arrangement power input, open PLC programmable logic controller 10 then, total system brings into operation by setup program.At first, the electrically heated rod energising in the liquid nitrogen tank 8, liquid nitrogen is heated to vaporize to make and produces certain pressure in the liquid nitrogen tank, opens valve V2, V3 liquid nitrogen is discharged smoothly; Valve-off V2, V3 open valve V1, V4, V5 then, make nitrogen be full of the entire reaction system, keep inert atmosphere; Valve-off V1, V4, V5, and moment open shutter 14, make the 6 flash pyrolysis of Mierocrystalline cellulose sample, when shutter 14 is closed by setting-up time, open valve V2, V4, V5, liquid nitrogen is sprayed onto sample surfaces rapidly it is cooled off; Valve-off V2 opens V1 subsequently, and nitrogen enters reactive system and the gaseous product purging is entered gas chromatograph 11 (as Agilent 6810 type gas chromatographs) and carries out analyzing and testing.Owing to may contain uncooled tar in the gaseous product, a strainer 9 is set, before entering gas chromatograph 11 in order to avoid damage instrument.
The most critical part:
1) the flash heating system of sample
The high pressure xenon short-act lamp that it is 3kW that this testing apparatus adopts a power is as source of radiation, and its luminous point brightness is higher, is a kind of comparatively ideal pointolite.Xenon lamp spectrum is the mixed light of wavelength 0.2～2.0 μ m, and the content of 0.8～1.0 μ m near-infrared radiation is higher, accounts for 78%, and visible light accounts for 12%, and ultraviolet ray accounts for 10%.Its luminous point is placed on the first focus place of ellipsoidal mirror, and light converges at second focus of reflective mirror after reflection.A light beam steering device is set in the light path, i.e. the plane mirror of 45 ° of placements of one side, light beam converges at a border circular areas after reflection straight down.Ellipsoidal mirror and plane mirror surface plating total reflection film aluminium film.The Mierocrystalline cellulose sample is placed in the monkey, and places airtight quartz glass tube, is convenient to picking and placeing of sample.Adjust whole optical path, make sample be positioned at the high focal spot of heat flow rate per unit area just.The heat flow rate per unit area at focus place can be regulated by the power input that changes xenon lamp.
2) accelerate cooling system of sample
Because the intermediate state material is at high temperature extremely unstable,, need it is cooled to room temperature in the moment that heating finishes.This testing apparatus utilizes the principle of liquid nitrogen vaporization heat absorption that it is cooled off.The vaporization of being heated of the electrically heated rod that in the liquid nitrogen storage tank three power to be set be 1kW, liquid nitrogen makes and produces certain pressure in the liquid nitrogen tank, and when valve opening, liquid nitrogen just can spray and be used to cool off sample.
3) Controlling System
Control by shutter the heat-up time of sample.The shutter that this device adopts is the rotary shutter of steel, and its time of response is 0.01s.For accurately measuring the heat-up time at focus place, at the focus place photocell is set, its sensitivity is 0.01s.The switching of nitrogen and liquid nitrogen is controlled by the magnetic valve in the light path.And the switch of shutter and magnetic valve is by a PLC Controlled by Programmable Controller.
At first take by weighing a certain amount of cellulose substances in the process of the test and be tiled in the crucible bottom surface, be placed on the focus place in the quartz glass tube, stopper makes reactive system be in closed state beyond the Great Wall, and connects piping system.Open xenon lamp and press the test arrangement power input, open the PLC programmable logic controller then, total system brings into operation by setup program.At first, the electrically heated rod energising in the liquid nitrogen tank, liquid nitrogen is heated to vaporize to make and produces certain pressure in the liquid nitrogen tank, opens valve V2, V3 liquid nitrogen is discharged smoothly; Valve-off V2, V3 open valve V1, V4, V5 then, make nitrogen be full of the entire reaction system, keep inert atmosphere; Valve-off V1, V4, V5, and moment open shutter, make the pyrolysis of Mierocrystalline cellulose sample flash, when shutter is closed by setting-up time, open valve V2, V4, V5, liquid nitrogen is sprayed onto sample surfaces rapidly it is cooled off; Valve-off V2 opens V1 subsequently, and nitrogen enters reactive system and the gaseous product purging is entered gas-chromatography and carries out analyzing and testing.Owing to may contain uncooled tar in the gaseous product, a strainer is set, before entering gas-chromatography in order to avoid damage instrument.After the off-test, cellulosic crucible will be housed take out, sample wherein is water-soluble.Utilize the intermediate state material water-soluble and the water-fast character of Mierocrystalline cellulose is separated with unreacted Mierocrystalline cellulose this intermediate state material by filtering solution with coke produced.The aqueous solution is dried under 45 ℃ of temperature, can obtain the solid intermediate state material of stable existence.
Claims (2)
1, a kind of device for preparing Mierocrystalline cellulose thermo-cracking intermediate state material is characterized in that comprising heating system and cooling, Controlling System, wherein:
1) heating system: the focus place that xenon lamp (1) is placed on ellipsoidal mirror (2), light converges at 45 ° plane mirror (4) after reflection, plane mirror (4) is connected to diaphragm (13), shutter (14) straight down successively, is placed on the quartz glass tube (5) on the photocell (15), the Mierocrystalline cellulose sample is placed in the monkey, and places on the quartz glass plate of airtight quartz glass tube (5);
2) cooling, Controlling System: PLC programmable logic controller (10) respectively with the first valve V1, the second valve V2, the 3rd valve V3, the 4th valve V4 is connected with the 5th valve V5 circuit, the termination nitrogengas cylinder (7) of the first valve V1, the termination liquid nitrogen tank (8) of the second valve V2, the output terminal of the first valve V1 and the second valve V2 is connected with the input terminus of the 3rd valve V3 and the 4th valve V4, one end of the output termination quartz glass tube (5) of the 4th valve V4, connect the input terminus of the 5th valve V5 behind the other end process filter (9) of quartz glass tube (5), the output termination gas chromatograph (11) of the 5th valve V5.
2, a kind of device for preparing Mierocrystalline cellulose thermo-cracking intermediate state material according to claim 1, it is characterized in that: described xenon lamp (1) is the high pressure xenon short-act lamp of 3kW, spectrum is the mixed light of wavelength 0.2～2.0 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201003826U CN2898028Y (en) | 2006-01-16 | 2006-01-16 | Device for thermal cracking intermediate substance by cellulose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201003826U CN2898028Y (en) | 2006-01-16 | 2006-01-16 | Device for thermal cracking intermediate substance by cellulose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898028Y true CN2898028Y (en) | 2007-05-09 |
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ID=38073364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201003826U Expired - Lifetime CN2898028Y (en) | 2006-01-16 | 2006-01-16 | Device for thermal cracking intermediate substance by cellulose |
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| Country | Link |
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| CN (1) | CN2898028Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365202C (en) * | 2006-01-16 | 2008-01-30 | 浙江大学 | Instantaneously heating and fast cooling set for cellulose |
| CN104327301A (en) * | 2014-10-15 | 2015-02-04 | 华东理工大学 | Device for recycling carbon fiber by sunshine secondary reflection and method |
| CN106221848A (en) * | 2016-09-29 | 2016-12-14 | 太原理工大学 | The fixed bed reactors bakeed for biomass |
-
2006
- 2006-01-16 CN CNU2006201003826U patent/CN2898028Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365202C (en) * | 2006-01-16 | 2008-01-30 | 浙江大学 | Instantaneously heating and fast cooling set for cellulose |
| CN104327301A (en) * | 2014-10-15 | 2015-02-04 | 华东理工大学 | Device for recycling carbon fiber by sunshine secondary reflection and method |
| CN104327301B (en) * | 2014-10-15 | 2017-01-18 | 华东理工大学 | Device for recycling carbon fiber by sunshine secondary reflection and method |
| CN106221848A (en) * | 2016-09-29 | 2016-12-14 | 太原理工大学 | The fixed bed reactors bakeed for biomass |
| CN106221848B (en) * | 2016-09-29 | 2019-02-19 | 太原理工大学 | The fixed bed reactors baked for biomass |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080130 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |