CN103396824B - A kind of efficient biomass pyrolysis made fuel oil production technique - Google Patents
A kind of efficient biomass pyrolysis made fuel oil production technique Download PDFInfo
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- CN103396824B CN103396824B CN201310349703.0A CN201310349703A CN103396824B CN 103396824 B CN103396824 B CN 103396824B CN 201310349703 A CN201310349703 A CN 201310349703A CN 103396824 B CN103396824 B CN 103396824B
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Abstract
A kind of efficient biomass pyrolysis made fuel oil production technique, adopts circulating fluid bed reaction device, comprises the following steps: (1), select pine raw material, is crushed to grain diameter at 1-3 millimeter, is then dried to relative moisture content for subsequent use within 8%; (2), pyrolysis time keep temperature of reactor between 480-530 DEG C, internal pressure remains on 0 to-500Pa, 12 tons/hour, pyrolysis over dry material; (3), below reacted pyrolysis gas spraying cooling to 60 DEG C, spray pressure to control at-1000 Pa through being separated, cooling obtains oil fuel.Object of the present invention is on the basis not changing existing equipment and conventional process flow, and optimize biomass pyrolytic technique, make biomass obtain high-efficiency thermal decomposition, liquid oil yield rate promotes greatly.
Description
Technical field
The invention belongs to biomass new energy field, particularly a kind of biomass efficient pyrolysis also efficient production technique of producing oil fuel.
Background technology
Along with developing rapidly of society, the energy and ecological problem more and more cause the attention of people.Do not have the energy, Economic development just loses power; Ecological destroyed, the living space of the mankind is just restricted.Select novel renewable energy, reduce environmental pollution, become the major objective that people pursue, and become the problem of World Focusing with biomass pyrolytic preparing bio-fuel technology.Current, China's biomass pyrolytic made fuel oil technology starting is late, there is the shortcoming that device is backward, technology is immature, pyrolysis productive rate is low, and does not form certain industrial scale.
Summary of the invention
The object of the present invention is to provide a kind of efficient biomass pyrolysis made fuel oil production technique, by optimizing biomass pyrolytic technique, make biomass obtain high-efficiency thermal decomposition, liquid oil yield rate promotes greatly.
Technical scheme of the present invention is: adopt from mixing downlink cycle fluidized bed reaction, comprise the following steps:
(1), select pine raw material, be crushed to grain diameter at 1-3 millimeter, be then dried to relative moisture content for subsequent use within 8%;
(2), keep pyrolytic reaction actuator temperature between 480-530 DEG C, internal pressure remains on 0 to-500Pa, then charging pyrolysis, over dry material inlet amount 12 tons/hour;
(3), oil fuel is isolated to below reacted pyrolysis gas spraying cooling to 60 DEG C.
Spray medium in described step (3) is self-produced oil fuel, and namely former batches adopt above-mentioned technique obtained and through cooled oil fuel.
Below provide a kind of from mixing downlink cycle fluidized bed reaction, it comprise fluid bed regenerator, the recycle system that inertial separator, pyrolysis reactor, semicoke separator, semicoke material returning device connect to form successively; The upper outlet of described inertial separator connects cyclonic separator, and the lower outlet of cyclonic separator connects fluid bed regenerator by thermal barrier material returning device; The pyrolysis gas outlet of described semicoke separator connects spray column, and spray column inside is provided with mouth spray, top is provided with the outlet of pyrolysis dry gas, bottom is provided with oil fuel outlet.
In order to improve spraying effect, during spray operation, spray column internal pressure remains on-1000 Pa.
In order to the high-temp solid material such as high-temperature heat carrier and semicoke solved bottom inertial separator easily piles up the defect causing coking, setting gauge is installed at solid materials blanking port place, described inertial separator lower end, it comprises drive unit and drives the material toggling axle rotated, and described material toggling axle is interval with many group material toggling teeth.
Described material toggling shaft length is no more than 1 meter, and the length of described material toggling tooth is no more than 0.4 meter.
Described material toggling space width is 0.2-0.4 rice.
Described drive unit is interconnection motor and wheel box.
Described material toggling axle and material toggling tooth are respectively material toggling axle and the material toggling tooth of 316L material.
Described material toggling axle rotating speed is 5-20r/min.
Object of the present invention is on the basis not changing existing equipment and conventional process flow, and optimize biomass pyrolytic technique, make biomass obtain high-efficiency thermal decomposition, liquid oil yield rate promotes greatly; This covering device and technique make the productive rate of liquid product oil fuel by the fuel oil yield of original 35%(over dry biomass) be promoted to the fuel oil yield of 40%(over dry biomass), calorific value increases to 7500kcal/kg by original 5600kcal/kg, and ash content is down to 2% by original 5%.Add setting gauge simultaneously, which employs high temperature resistant material, unique design and installation position, by the rotating operation of continous-stable, make the temperature of reactor and oil gas and pressure maintain smooth running situation, avoid the long-time accumulation of biomass semicoke and thermal barrier, thus high-temperature coking, make this blanking position blanking unimpeded, thus ensure that the continuous operation of circulating fluidized bed.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of efficient biomass pyrolysis made fuel oil technological process of production schematic diagram;
In figure: 1, fluid bed regenerator; 2, inertial separator; 3, cyclonic separator; 4, pyrolysis reactor; 5, semicoke separator; 6, semicoke material returning device; 7, thermal barrier material returning device; 8, material toggling axle; 9, material toggling tooth; 10, wheel box, 11, motor, 12, spray column, 13, mouth spray, 14, the outlet of pyrolysis dry gas, 15, oil fuel outlet.
Embodiment
See Fig. 1, first provide a kind of from mixing downlink cycle fluidized bed reaction, it comprise fluid bed regenerator 1, the recycle system that inertial separator 2, pyrolysis reactor 4, semicoke separator 6, semicoke material returning device 6 connect to form successively; 2 upper outlets of inertial separator connect cyclonic separator 3, and the lower outlet of cyclonic separator 3 connects fluid bed regenerator 1 by thermal barrier material returning device 7; The pyrolysis gas outlet of semicoke separator 5 connects spray column 12, and spray column 12 inside is provided with mouth spray 13, top is provided with pyrolysis dry gas outlet 14, bottom is provided with oil fuel outlet 15.The setting gauge of high-temperature heat carrier is installed at solid materials blanking port place, inertial separator 2 lower end, and it comprises motor 11 and wheel box 10 drives the material toggling axle 8(rotating speed rotated to be preferably 5-20r/min), material toggling axle 8 circumference is interval with many group material toggling teeth 9; Material toggling axle 8 length is no more than 1 meter, and the length of material toggling tooth 9 is no more than 0.4 meter, and material toggling tooth 9 spacing is 0.2-0.4 rice.In order to high temperature resistant and anticorrosion, material toggling axle 8 and material toggling tooth 9 select 316L material respectively.
Secondly to the workflow coming from mixing downlink cycle fluidized bed reaction: biomass material to be delivered to pyrolysis reactor 4, the high-temperature solid particle entered with inertial separator 2 wherein carries out contacting, mix and reacting, reacting rear material enters semicoke separator 5 and is separated, gas phase (pyrolysis gas) is carried out into spray column 12, and solid phase enters fluid bed regenerator 1 by semicoke material returning device; Gas phase is at spray column 12 after spraying cooling, and pyrolysis dry gas is discharged by top, and oil fuel is discharged by bottom.Cyclonic separator 3 is separated the thermal barrier obtained and also enters fluid bed regenerator 1 through thermal barrier material returning device 7 simultaneously, in fluid bed regenerator 1, solid phase and air combustion regenerate, temperature is discharged by fluid bed regenerator 1 top after raising, first inertial separator 2 is entered, most of solid particulate after separation enters pyrolysis reactor 4 and carries out next circulation, remaining a small amount of molecule enters cyclonic separator 3, and the solid particulate of separation carries out carrying out next circulation into thermal barrier material returning device 7.
Finally provide the biomass pyrolytic made fuel oil production technique adopting said apparatus, specifically comprise the following steps:
(1), select pine raw material, be crushed to grain diameter at 1-3 millimeter, be then dried to relative moisture content for subsequent use within 8%;
(2), keep pyrolytic reaction actuator temperature between 480-530 DEG C, internal pressure remains on 0 to-500Pa, then charging pyrolysis, over dry material inlet amount 12 tons/hour;
(3), be isolated to oil fuel below reacted pyrolysis gas spraying cooling to 60 DEG C, spray medium is self-produced oil fuel; Spray column internal pressure keeps tiny structure, preferably controls at-1000 Pa.
This covering device and technique make the productive rate of liquid product oil fuel by the fuel oil yield of original 35%(over dry biomass) be promoted to the fuel oil yield of 40%(over dry biomass), calorific value increases to 7500kcal/kg by original 5600kcal/kg, and ash content is down to 2% by original 5%.
Claims (6)
1. an efficient biomass pyrolysis made fuel oil production technique, adopts from mixing downlink cycle fluidized bed reaction, it is characterized in that, comprise the following steps:
(1), select pine raw material, be crushed to grain diameter to 1-3 millimeter, be then dried to relative moisture content for subsequent use within 8%;
(2), pyrolysis time keep temperature of reactor between 480-530 DEG C, internal pressure remains on 0 to-500Pa, then charging pyrolysis, over dry material inlet amount 12 tons/hour;
(3), oil fuel is isolated to below reacted pyrolysis gas spraying cooling to 60 DEG C; Spray medium is self-produced oil fuel, and during spray operation, spray column internal pressure remains on-1000 Pa;
Described comprise fluid bed regenerator from mixing downlink cycle fluidized bed reaction, the recycle system that inertial separator, pyrolysis reactor, semicoke separator, semicoke material returning device connect to form successively; The upper outlet of described inertial separator connects cyclonic separator, and the lower outlet of cyclonic separator connects fluid bed regenerator by thermal barrier material returning device; The pyrolysis gas outlet of described semicoke separator connects spray column, and spray column inside is provided with mouth spray, top is provided with the outlet of pyrolysis dry gas, bottom is provided with oil fuel outlet;
Setting gauge is installed at solid materials blanking port place, described inertial separator lower end, and it comprises drive unit and drives the material toggling axle rotated, and described material toggling axle circumference is interval with many group material toggling teeth.
2. efficient biomass pyrolysis made fuel oil production technique according to claim 1, it is characterized in that: described material toggling shaft length is no more than 1 meter, the length of described material toggling tooth is no more than 0.4 meter.
3. efficient biomass pyrolysis made fuel oil production technique according to claim 2, is characterized in that: described material toggling space width is 0.2-0.4 rice.
4. efficient biomass pyrolysis made fuel oil production technique according to claim 3, is characterized in that: described drive unit is interconnection motor and wheel box.
5. efficient biomass pyrolysis made fuel oil production technique according to claim 4, is characterized in that: described material toggling axle and material toggling tooth are respectively material toggling axle and the material toggling tooth of 316L material.
6. efficient biomass pyrolysis made fuel oil production technique according to claim 5, is characterized in that: described material toggling axle rotating speed is 5-20r/min.
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| CA2964523A1 (en) * | 2014-11-05 | 2016-05-12 | Bdi-Bioenergy International Ag | Method for the conversion of biomass to liquid and/or gaseous energy carriers |
| CN107937011B (en) * | 2017-10-25 | 2023-04-07 | 浙江科技学院 | Biomass rapid pyrolysis device and process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2883375Y (en) * | 2006-04-10 | 2007-03-28 | 王述洋 | Chute bending combined biosubstance fast cracking liquefied reactor |
| CN101544901A (en) * | 2009-05-05 | 2009-09-30 | 江苏大学 | Method and device for preparing biological oil by biomass cracking |
| JP2011207920A (en) * | 2010-03-29 | 2011-10-20 | Jfe Techno Research Corp | Method and apparatus for producing fuel oil from biomass material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2883375Y (en) * | 2006-04-10 | 2007-03-28 | 王述洋 | Chute bending combined biosubstance fast cracking liquefied reactor |
| CN101544901A (en) * | 2009-05-05 | 2009-09-30 | 江苏大学 | Method and device for preparing biological oil by biomass cracking |
| JP2011207920A (en) * | 2010-03-29 | 2011-10-20 | Jfe Techno Research Corp | Method and apparatus for producing fuel oil from biomass material |
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Effective date of registration: 20230322 Address after: 257300 Chen Guan Zhen He Xin Lu and Yong Qing Lu Intersection, Guangrao County, Dongying City, Shandong Province 300 meters west to the north of the road Patentee after: Guangrao County Zerun Environmental Protection Technology Co.,Ltd. Address before: 257300 Guangrao County Economic Development Zone, Dongying District, Dongying City, Shandong Province Patentee before: SHANDONG TOROYAL NEW ENERGY Co.,Ltd. |
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Denomination of invention: An Efficient Process for Producing Fuel Oil from Biomass Pyrolysis Effective date of registration: 20230726 Granted publication date: 20150923 Pledgee: Shandong Guangrao Rural Commercial Bank Co.,Ltd. Pledgor: Guangrao County Zerun Environmental Protection Technology Co.,Ltd. Registration number: Y2023980049890 |
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