CN101993752B - Method and device for preparing fuel by utilizing sludge and straw - Google Patents
Method and device for preparing fuel by utilizing sludge and straw Download PDFInfo
- Publication number
- CN101993752B CN101993752B CN 201010558035 CN201010558035A CN101993752B CN 101993752 B CN101993752 B CN 101993752B CN 201010558035 CN201010558035 CN 201010558035 CN 201010558035 A CN201010558035 A CN 201010558035A CN 101993752 B CN101993752 B CN 101993752B
- Authority
- CN
- China
- Prior art keywords
- vapour
- quick
- fried
- mud
- reactor
- 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.)
- Expired - Fee Related
Links
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
-
- 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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Treatment Of Sludge (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a method for preparing fuel by utilizing sludge and straw. The method comprises the following steps of: conveying dewatered wet sludge in water ratio smaller than 85 percent and straw in a mass ratio of 20:1 to 20:5 into a steam explosion reaction kettle; sealing a feeding hole, adding steam explosion gas to the tank; rising the tank pressure to steam explosion pressure when raw materials are heated to a steam explosion temperature; rapidly discharging pressure so as to crush and uniformly mix biomass structure and sludge cells; then, removing partial water in the mixture through a dewatering machine; and forming to prepare synthetic sludge fuel. The device for preparing the synthetic sludge fuel comprises a feeder, a steam explosion reaction kettle, a buffer kettle, the dewatering machine and a forming machine, wherein the outlet of the feeder and the inlet of the steam explosion reaction kettle, the outlet of the steam explosion reaction kettle and the inlet of the buffer kettle, the outlet of the buffer kettle and the inlet of the dewatering machine, and the outlet of the dewatering machine and the inlet of the forming machine are respectively connected.
Description
Technical field
The invention belongs to solid waste handles and the recycling field, relate to the processing method that a kind of mud prepares synthol, relate in particular to a kind of wet mud of biomass such as stalk and water ratio about 80% that directly utilizes under no agitation condition, by the quick-fried technology of vapour, the fragmentation of mud and biomass is also evenly mixed, make method and the device of synthol.
Background technology
Be accompanied by the fast development of global economy and people to the growing interest of environment, sludge yield enlarges rapidly.Seek a kind of all mud of both be fit to having handled, can utilize effective constituent in the mud again, realize that the technology of minimizing, innoxious, stabilization and resource utilization is the direction of current sludge treatment technical study exploitation.
Contain a large amount of organism in the municipal sludge, account for 70% ~ 80%(massfraction), the about 14MJ/kg of low level butt calorific value approaches with low grade coal, can make fuel and use.Mud is mixed and made into briquettes with sludge with coal dust and other additives by a certain percentage, has both can be used as the binding agent of moulded coal, can take full advantage of the calorific value of mud again.After mud was made synthol, organic pollutant, pathogenic bacterium can be removed by burning in the mud, and the part heavy metal ion is deposited in the lime-ash.Sludge fuel and coal multifuel combustion can reduce the discharging of coal-fired oxynitride and oxysulfide to a certain extent simultaneously.Sludge synthetic fuel volatile content height has that burning-point is low, temperature is high, an advantage such as fast on fire.The sludge fuel technology is considered to one of the most rising method.
Existing sludge synthetic fuel technology, coal, gulf mud, zeolite are mixed and made into fuel pellet with mass ratio 65:25:10, also have by coal, mud, zeolite, rice bran with mass ratio 45:35:10:10 or coal, mud, zeolite, unslaked lime with mass ratio 40:40:10:10 synthol, wherein the ratio of coal approaches even surpasses half, and what burn in the propellant combination mainly is coal.Also some technology is the feedstock production sludge synthetic fuel with mud, ignition dope (biomass, coal), sweetening agent, binding agent, and the adding proportion of mud increases, and maintains about 50%, and the sludge treatment rate increases.There is following shortcoming in existing turning sludge into fuel technology: (1) dewatered sludge must carry out predrying, the processing cost height; (2) adding proportion of ignition dope (coal or biomass) all big (greater than 40%), the adding proportion of mud is low; (3) with the stalk be the sludge fuel technology of ignition dope, need crushed stalk before the synthol, and then with mud and other additives mixed fuel, complex process; (4) raising of the reduction of synthol water ratio and calorific value mainly is by adding ignition dope significantly, and adds Fe
3+, Ca
2+Or additive such as flyash, reducing the water ratio of synthol, the adding of these chemical compositions is easy to generate corrosion and obnoxious flavour contaminate environment when sludge incineration; (5) stabilization and innoxious aspect have certain potential safety hazard, especially before unburn, a large amount of germ and viruses are not killed.
Summary of the invention
The invention provides and a kind ofly make biomass broken and mix method and the device for preparing sludge synthetic fuel with mud by the modified and quick-fried technology of vapour of heat.
The present invention adopts following technical scheme:
A kind of method of utilizing mud and stalk to prepare fuel of the present invention, step is as follows:
Step 1: with water ratio less than the wet mud of 85% dehydration directly and stalk send in the quick-fried reactor of vapour by mass ratio 20:1 ~ 20:5;
Step 2: feed the vapour explosive gas after closing opening for feed, treat material be heated to the quick-fried temperature of vapour, when reactor pressure rises to vapour detonation pressure power, open the quick-opening valve at the quick-fried reactor discharge port of vapour place after 10 ~ 300 seconds fast, make mud and biomass expand, quick-fried broken and mix;
Step 3: the mixture after vapour is quick-fried is sent into the water extracter dehydration;
Step 4: the mixture pelleting moulding after will dewatering makes sludge synthetic fuel.
A kind of device of implementing aforesaid method of the present invention, comprise feeder, the quick-fried reactor of vapour, accumulator still, water extracter, shaper, its mode of connection is that the feeder outlet is connected with the quick-fried reactor import of vapour, the quick-fried reactor outlet of vapour is connected with the accumulator still import, the accumulator still outlet is connected with the water extracter import, and the water extracter outlet links to each other with the shaper import.
Working process of the present invention is as follows:
Send into the quick-fried reactor of vapour according to the above ratio less than biomass such as 85% dewatered sludge and stalks approximately with moisture, and behind capping still opening for feed, in reactor, feed small amount of steam, after mud in the question response still and biomass are heated to the quick-fried temperature of vapour, pressure reaches 1.2-5.0MPa, Wei Wenwei presses after 10 ~ 300 seconds and opens the quick-opening valve that is located at the reactor exit rapidly, vapour phase medium ejection in the raw material hole, the rapid bumping of high-pressure liquid water forms flash distillation, mud and biomass sharply expand in the reactor, externally acting, produce " explosion " effect, under the effect of mechanical force, biomass and mud cell are by quick-fried broken and mix, and dewatering performance of sludge significantly promotes, remove part moisture in the mixture by water extracter, the mixture after will dewatering is again sent into and is made sludge synthetic fuel in the shaper.
Compared with prior art, the present invention has the following advantages:
1, the present invention directly adopts the dewatered sludge less than 85% to prepare fuel, takes full advantage of hot modified technology and realizes that synchronously biomass are broken and improve dewatering performance of sludge, need not any chemical additive in the preparation process, and products of combustion does not have extra pollution;
2, the present invention takes full advantage of the quick-fried technology of vapour, and biomass need not precomminution, and need not extra whipping device can mix with mud;
3, the present invention utilizes hot modified technology to realize sludge dewatering and recycling synchronously, and the adding proportion of mud can be used as the new technology of recycling treatment mud greater than 80% in the fuel;
4, the present invention mainly improves the calorific value of synthol by the quick-fried reduction moisture percentage in sewage sludge of vapour, take full advantage of the calorific value of mud, synthol calorific value height, even have only in the adding proportion of biomass under 4% the situation, the calorific value of synthol also can reach 8500kJ/kg;
5, the present invention adopts hot modified technology, and mud is after pyroprocessing, and various pathogenic bacterium are killed, and has really realized the stabilization of sludge treatment, innoxious, minimizing;
6, apparatus of the present invention utilize charged piston to promote vapour detonation pressure power, temperature of charge, vapour detonation pressure power are limited by steam no longer, solved temperature of charge in the quick-fried process of traditional vapour can with pressure increase and the problem that raises can realize that the vapour of the high-temperature low-pressure of material or cryogenic high pressure is quick-fried, range of application is wider.
7, apparatus of the present invention promote vapour detonation pressure power by charged piston, and do not adopt the existing gas that utilizes to come supercharging, and the supercharging energy consumption is low, and vapour detonation pressure power can improve greatly, have improved production efficiency.
8, apparatus of the present invention not with high pressure steam as pressure source, toggle speed is fast, but the material indirect heating, the energy utilization rate height, energy consumption is low, can effectively reduce the production cost of derived product.
9, operational path of the present invention is simple, the quick-fried temperature of vapour, pressure and residence time of material can effectively be controlled in real time, can adjust the quick-fried processing parameter of vapour in real time according to the biomass kind, and the self-adaptation of technology is strong, thereby the stability of fuel output can not be subjected to the seasonal influence of biomass.
Description of drawings:
Fig. 1 is that mud and the stalk of utilizing of the present invention prepares fuel
MethodProcess flow sheet.
Fig. 2 is the structural representation of the used quick-fried reactor of plunger booster formula vapour of the inventive method.
Wherein, 1, feeder 2, the quick-fried reactor 3 of vapour, accumulator still 4, water extracter 5, shaper 6, charged piston 7, tank body 8, discharge port 9, quick-opening valve 10, steam inlet 11, opening for feed.
Embodiment
Embodiment 1
A kind of method for preparing sludge synthetic fuel, step is as follows:
Step 1: with water ratio less than the wet mud of 85% dehydration directly and stalk send in the quick-fried reactor of vapour by mass ratio 20:1 ~ 20:5;
Step 2: feed the vapour explosive gas after closing opening for feed, treat material be heated to the quick-fried temperature of vapour, when reactor pressure rises to vapour detonation pressure power, open the quick-opening valve at the quick-fried reactor discharge port of vapour place after 10 ~ 300 seconds fast, make mud and biomass expand, quick-fried broken and mix;
Step 3: the mixture after vapour is quick-fried is sent into the water extracter dehydration;
Step 4: the mixture pelleting moulding after will dewatering makes sludge synthetic fuel.
Embodiment 2
A kind of device of implementing above-mentioned preparation sludge synthetic fuel method, comprise feeder 1, the quick-fried reactor 2 of vapour, accumulator still 3, water extracter 4, shaper 5, feeder 1 outlet and quick-fried reactor 2 imports of vapour, quick-fried reactor 2 outlets and accumulator still 3 imports of vapour, accumulator still 3 outlets and water extracter 4 imports, water extracter 4 outlets link to each other respectively with shaper 5 imports, in the present embodiment, the quick-fried reactor 2 of described plunger booster formula vapour comprises tank body 7, be provided with discharge port 8 at tank body 7, steam inlet 10 and opening for feed 11, be respectively equipped with valve 9 at steam inlet 10 and discharge port 8, be provided with charged piston 6 in tank body 7, described opening for feed 11 is adjacent with the charged piston 6 that is in zero position.
With reference to the accompanying drawings, the present invention is made more detailed explanation:
With reference to Fig. 1, a kind of device for preparing the sludge synthetic fuel method comprises feeder 1, the quick-fried reactor 2 of vapour, accumulator still 3, water extracter 4, shaper 5.Wet mud and the leaf (mean diameter is greater than 70mm) of water ratio 80% are sent in the reactor by the opening for feed of feeder 1 through the quick-fried reactor 2 of vapour by mass ratio 24:1, feed the vapour explosive gas after closing opening for feed, when treating that material is heated to 150 ℃ of the quick-fried temperature of vapour, reactor pressure to 1.8MPa, open the quick-opening valve at the quick-fried reactor of vapour 2 discharge port places after 100 seconds fast, make mud and biomass expand, quick-fried broken, mix and be collected in accumulator still 3.Send under the condition that water extracter 4 is 0.7MPa at pressure dehydration 1 hour subsequently, through shaper 5 suppress sludge synthetic fuel, the water ratio of synthol is less than 65%, ultimate compression strength is 3.08kg/cm
2, calorific value is 8500kJ/kg.Moisture is separated out the about 20-150 of temperature ℃ during pyrolysis, and volatile matter is separated out temperature 280-350 ℃, 280 ℃ of kindling temperatures, and final rate of weight loss reaches 90% during burning.
Present embodiment is the wet mud of 80% dehydration with water ratio directly and is raw material without the leaf of pulverizing, improve the dewatering of mud by the steam explosion technology, and with biomass and mud cell pulverization and mix, mixture after modified is dewatered, reshaping makes sludge synthetic fuel, has realized that effectively deeply dehydrating sludge and recycling are integrated.In this enforcement profit, the adding proportion of mud is 96%, and the adding proportion of leaf is 4%, and the calorific value of synthol then reaches 8500kJ/kg, if prolong dewatering time, the water ratio of synthol further reduces, and fuel value can further increase.The inventive method takes full advantage of the calorific value of mud, additive-free in the fuel fabrication process, no whipping appts, that mud after pyroprocessing has really reached is innoxious, the purpose of stabilization, minimizing and resource utilization, effectively reduces the production cost of sludge synthetic fuel, and mud handling capacity is big.
With reference to Fig. 2, a kind of realization biomass and mud cytoclasis also mix, improve the quick-fried reactor 2 of plunger booster formula vapour of dewatering performance of sludge, comprise tank body 7, be provided with discharge port 8, steam inlet 10 and opening for feed 11 at tank body 7, be respectively equipped with valve on steam inlet 10 and the discharge port 8, be provided with charged piston 6 in tank body 7, described opening for feed 11 is adjacent with the charged piston 6 that is in zero position.Quick-opening valve 9 is in the closed position, charged piston 6 is shown in an open position, in tank body, send into mud and biomass by opening for feed 11, promote to pass through after piston 6 to reactor cuts out steam inlet 10 and in tank body, feed the steam heating material, when treating that material is heated to the quick-fried temperature of vapour, continue to promote charged piston 6 and promote reactor pressure to 1.5-5.0Mpa vapour detonation pressure power (can further promote according to processing requirement), dimension was pressed after 10 ~ 300 seconds, open quick-opening valve 9 rapidly, vapour phase medium ejection in mud and the biomass hole, the rapid bumping of high-pressure liquid water forms flash distillation, externally acting produces " explosion " effect, under the effect of mechanical force, mud cell and biomass structure are broken, and mud and biomass mix.Mud is through after the high temperature high pressure process, and various pathogenic bacterias are killed, and have really realized the innoxious of sludge treatment.
This device adopts quick-opening valve to trigger the quick-fried process of vapour, mainly promote vapour detonation pressure power in the tank body by charged piston, the quick-fried pulverizing of the vapour of mud and biomass need not high pressure steam and can realize, reduced the requirement of the quick-fried process of vapour to steam quality, significantly reduce the consumption of the quick-fried process mesohigh of vapour steam, can significantly improve rate of energy, realize cascaded utilization of energy, reduce the quick-fried energy consumption of vapour.Pressure reaches production requirement easily, is conducive to enhance productivity, and the vapour detonation pressure power of mud and biomass, the residence time can accurately be controlled, and both can realize even mixing.The device toggle speed is fast, and the pressure release time is short, and major parts is few, and device fabrication is simple, and the reliability height can be realized scale operation and application under the prior art condition.
Claims (4)
1. method of utilizing mud and stalk to prepare fuel is characterized in that step is as follows:
Step 1: with water ratio less than the wet mud of 85% dehydration directly and stalk send in the quick-fried reactor of vapour by mass ratio 20:1～20:5;
Step 2: feed the vapour explosive gas after closing opening for feed, treat material be heated to the quick-fried temperature of vapour, when reactor pressure rises to vapour detonation pressure power, open the quick-opening valve at the quick-fried reactor discharge port of vapour place after 10～300 seconds fast, make mud and biomass expand, quick-fried broken and mix;
Step 3: the mixture after vapour is quick-fried is sent into the water extracter dehydration;
Step 4: the mixture pelleting moulding after will dewatering makes sludge synthetic fuel.
2. the method for utilizing mud and stalk to prepare fuel according to claim 1, it is characterized in that, stalk in the step 1 is one or more in straw, grass stalk, corn stalk, potato class, oil plant, cotton, sugarcane, leaf, the wood chip, size requires to send into the quick-fried reactor of vapour, need not to be ground into powder.
3. implement the described device that utilizes mud and stalk to prepare the method for fuel of claim 1 for one kind, it is characterized in that, comprise feeder (1), the quick-fried reactor of vapour (2), accumulator still (3), water extracter (4), shaper (5), its mode of connection is that feeder (1) outlet is connected with the quick-fried reactor of vapour (2) import, the quick-fried reactor of vapour (2) outlet is connected with accumulator still (3) import, accumulator still (3) outlet is connected with water extracter (4) import, and water extracter (4) outlet links to each other with shaper (5) import.
4. device according to claim 3, it is characterized in that, the quick-fried reactor of described vapour (2) comprises tank body (7), be provided with discharge port (8), steam inlet (10) and opening for feed (11) at tank body (7), be respectively equipped with valve (9) at steam inlet (10) and discharge port (8), be provided with charged piston (6) in tank body (7), described opening for feed (11) is adjacent with the charged piston (6) that is in zero position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010558035 CN101993752B (en) | 2010-11-25 | 2010-11-25 | Method and device for preparing fuel by utilizing sludge and straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010558035 CN101993752B (en) | 2010-11-25 | 2010-11-25 | Method and device for preparing fuel by utilizing sludge and straw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101993752A CN101993752A (en) | 2011-03-30 |
| CN101993752B true CN101993752B (en) | 2013-09-18 |
Family
ID=43784514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010558035 Expired - Fee Related CN101993752B (en) | 2010-11-25 | 2010-11-25 | Method and device for preparing fuel by utilizing sludge and straw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101993752B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583947B (en) * | 2012-03-22 | 2013-07-10 | 中国科学技术大学 | Method for performing explosion injection atomizing treatment on sludge |
| DK177818B1 (en) * | 2012-04-11 | 2014-08-11 | C F Nielsen As | Process for treating a biomass with a lignocellulose content |
| CN103172412B (en) * | 2013-03-22 | 2014-09-17 | 天紫环保投资控股有限公司 | Method for preparing slurry-state fertilizer substrate by using garbage containing organic matters |
| CN103409194B (en) * | 2013-08-20 | 2015-09-02 | 北京宝塔三聚能源科技有限公司 | A kind of utilize mud to prepare moulded coal and preparation technology |
| CN104212531A (en) * | 2014-09-25 | 2014-12-17 | 江南大学 | Method for preparing solid fuel by exploding biomass waste through external gas assisted by steam |
| CN109231767A (en) * | 2018-10-15 | 2019-01-18 | 杭州诺曼生物技术有限公司 | Dry and wet sludge mixes the dehydration device that homogenizes |
| CN110257122A (en) * | 2019-06-24 | 2019-09-20 | 吴碧四 | A kind of biomass straw shaped fuel and preparation method thereof |
| CN110469856A (en) * | 2019-08-13 | 2019-11-19 | 张家港百赫科技有限公司 | A kind of dangerous waste coupled biological matter incineration treatment method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101056968A (en) * | 2004-11-10 | 2007-10-17 | 环境能量技术股份有限公司 | Method of slurry dewatering and conversion of biosolids to a renewable fuel |
| CN201850262U (en) * | 2010-11-25 | 2011-06-01 | 东南大学 | Device using sludge and straws used for preparing fuel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929117A (en) * | 2008-12-15 | 2017-07-07 | 齐尔可生物质科技有限公司 | The method for producing particle or briquetting |
-
2010
- 2010-11-25 CN CN 201010558035 patent/CN101993752B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101056968A (en) * | 2004-11-10 | 2007-10-17 | 环境能量技术股份有限公司 | Method of slurry dewatering and conversion of biosolids to a renewable fuel |
| CN201850262U (en) * | 2010-11-25 | 2011-06-01 | 东南大学 | Device using sludge and straws used for preparing fuel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101993752A (en) | 2011-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101993752B (en) | Method and device for preparing fuel by utilizing sludge and straw | |
| CN102212403A (en) | Method and device for preparing formed sludge fuel | |
| CN101899349B (en) | Method for preparing solid renewable clean fuel from agricultural and forestry waste/domestic garbage | |
| US20110119997A1 (en) | Biomass fuel compact processing method | |
| KR102028442B1 (en) | Improvement on Co-firing of Biomass with Coal Biomass Blending ratio, Manufacturing Method and System of Boiler-Torrefaction Fuel Production thereof | |
| CN103374427A (en) | Biomass solid fuel and processing technique thereof | |
| CN102260506A (en) | Novel method for comprehensively utilizing waste materials of rubber tree processing sheets | |
| CN107365601B (en) | A kind of Biomass Gasification ＆ Power Generation method using agriculture and forestry organic waste material | |
| JP5608806B1 (en) | Palm trunk processing method | |
| WO2014144051A1 (en) | Composite carbonaceous fuel compact | |
| CN104974812A (en) | Method for producing clean coal (carbon) spheres by using municipal sludge and agricultural wastes | |
| KR102063831B1 (en) | De-Ash in Biomass at Low-Temperature, Manufacturing Method and System of Fuel Production and Generation Connected with Reverse Electrodialysis | |
| CN101422750A (en) | Novel coal crushing method | |
| CN201850262U (en) | Device using sludge and straws used for preparing fuel | |
| CN105710114A (en) | Carbonization circulation overall treatment system and method for household refuse and forestry and agricultural residues | |
| CN108251175A (en) | A kind of method for improving stalk solid content in water | |
| Wirabuana et al. | Influence of starch binders composition on properties of biomomass briquettes from Durian peel (Durio kutejensis Becc) | |
| US20130276363A1 (en) | Moisture Resistant Biomass Fuel Compact and Method of Manufacturing | |
| CN106190405A (en) | A kind of preparation method of high-efficiency environment friendly biomass fuel | |
| CN101724484A (en) | Mixed type coal substitute product technology | |
| RU2551856C1 (en) | Method of deep processing of vegetable organic fuel without chemical binding components and bricketed fuel | |
| WO2014152931A1 (en) | Moisture resistant biomass fuel compact and method of manufacturing | |
| KR101042619B1 (en) | Method for producing compressed charcoal fuel using food waste | |
| CN105969460A (en) | Environmental protection-type high-calorific value biomass briquette fuel and production method thereof | |
| JP2019026730A (en) | Biomass-modified coal, production method of biomass-modified coal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20161125 |