CN203768294U - Biomass-coal coupling pyrolytic system - Google Patents
Biomass-coal coupling pyrolytic system Download PDFInfo
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- CN203768294U CN203768294U CN201420133339.4U CN201420133339U CN203768294U CN 203768294 U CN203768294 U CN 203768294U CN 201420133339 U CN201420133339 U CN 201420133339U CN 203768294 U CN203768294 U CN 203768294U
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- 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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- Solid Fuels And Fuel-Associated Substances (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a biomass-coal coupling pyrolytic system which has a combined effect to the biomass and low-rank coal by microorganisms to accelerate coupling of the biomass and the low-rank coal, thereby realizing pyrolysis of the biomass to accelerate hydropyrolysis of coal. Meanwhile, desulfuration is further carried out in advance to prevent generation of sulfur dioxide in the pyrolytic process. The technical scheme is as follows: the biomass-coal coupling pyrolytic system is characterized by comprising a ball-mill roller type bioreactor, a kneading machine, a rotary kiln, a moisture collecting device and a rotary gas retort.
Description
Technical field
The utility model belongs to technical field of coal chemical industry.
Background technology
The fossil energy structure of China is " rich coal, oil-poor, weak breath ", and in the energy consumption structure of China, coal accounts for 70%.Due to the high-carbon of coal with utilize at present the backwardness of technology, coal is also the primary pollution source of environment in as main energy sources and industrial chemicals.According to Chinese Academy of Engineering's data, 2006, the SO of China's discharge
2and NO
xtotal amount reach more than 4,000 ten thousand tons, come from coal-fired ratio and be respectively 85% and 60%, coal fire discharged CO
2also account for respectively 85% and 70% of total release with flue dust.Due to china natural resources natural endowment feature, coal is the main provider of Energy resources on the one hand; Due to backward in technique, coal is again the primary pollution source of environmental ecology on the other hand.Based on above-mentioned present situation, add the clean and effective utilization of strong coal, development Modern Coal-based Chemical technology, has become the direction that people make great efforts.
Low-rank coal (brown coal/sub-bituminous coal) accounts for China and has verified coal reserves more than 55%, and low-rank coal degree of coalification is low, and the volatile matter of containing is wherein equivalent to the hydrocarbon resources of 1,000 hundred million tons.Because low-rank coal water-content is high, directly burning or gasification efficiency is low and prior art cannot make full use of its resource value, caused the huge waste of coal resources.Xinjiang region coal resources be take sub-bituminous coal as main, and the utilization of low-rank coal upgrading clean and effective is the only way that makes full use of Xinjiang region coal resources.
Biomass comprise the resistates that agricultural crop straw, rice husk, forestry processing produce etc.The annual production of China's agricultural crop straw approximately has 600Mt, the about 50Mt of rice husk, and the about 30Mt of forestry residual processing thing, three totals are amounted to standard coal 215Mt.Biomass Main chemical component is xylogen, Mierocrystalline cellulose and carbohydrate, and energy density is low, should not store and transport.China's biomass discarded or directly burning mostly at present, utilization ratio is low, causes the wasting of resources and environmental pollution.According to the composition characteristic of biomass and low-rank coal, by biomass and the common pyrolysis of low-rank coal, be the brand-new research topic of Coal Chemical Industry in recent years.In biomass, hydrogen richness is high, if can impel pyrolysis of coal hydrogenation by common pyrolysis, will improve volatile yield, occurs the effect of 1+1>2.Yet because biomass pyrolytic temperature is low, pyrolysis rate is fast, pyrolysis of coal temperature is high, pyrolysis rate is slow, when prior art biomass and coal mixed pyrolysis, often present biomass and the coal phenomenon of pyrolysis respectively, be difficult to realize the expection that biomass pyrolytic impels pyrolysis of coal hydrogenation.
Utility model content
The purpose of this utility model is to provide a kind of biomass-coal coupling pyrolysis system, by microorganism acting in conjunction biomass and low-rank coal, impel biomass and low-rank coal coupling, realize biomass pyrolytic and impel pyrolysis of coal hydrogenation, simultaneously all right pre-desulfurization, avoids pyrolytic process to produce sulfurous gas.Technical scheme is as follows: biomass-coal coupling pyrolysis system, it is characterized in that, and comprise ball milling Rotary Drum Bioreactor, kneader, rotary kiln, moisture collection device and rotary retort.
Described ball milling Rotary Drum Bioreactor, for a kind of airtight ball milling cylinder, comprises cylinder, batch mixing ball, heating unit, temperature control unit and the diffuser of bleeding.Described heating unit is that uniform winding is in the heating zone of outer surface of cylinder.Low-rank coal and biomass enter after ball milling Rotary Drum Bioreactor, according to certain ratio of grinding media to material, add batch mixing ball, and rotary drum fully mixes coal and biomass.Mix rear ball material separated, take out batch mixing ball, then add microorganism, pass into the required atmosphere of microorganism growth, rotary drum makes microorganism to biomass and coal acting in conjunction.This biochemical reaction process, both can desulfurization, avoided follow-up pyrolytic process to produce sulfurous gas; Again can the acting in conjunction to biomass and coal by microorganism, impel biomass and coal coupling, in follow-up pyrolytic process, by biomass pyrolytic, impel pyrolysis of coal hydrogenation, improve volatile yield.After biochemical reaction finishes, the mixture of biomass and coal is made agglomerate by kneader, in kneading process, can add suitable amount of adhesive.
Biomass and coal mixed pellet through coupling processing enter rotary kiln drying, and biomass and coal mixed pellet are removed moisture after rotary kiln heating, and moisture recycles after collecting.
Dried biomass and coal mixed pellet enter rotary retort, and biomass and coal mixed pellet are by high-temperature gas direct heating in gas retort, and gas retort is provided with heating unit to biomass and coal mixed pellet indirect heating simultaneously.
Biomass and coal mixed pellet pyrolysis product are Jiao, tar and pyrolysis gas, and Jiao's cake of press after cooling becomes piece, is prepared into formed coke and sells as product.Tar can be prepared the products such as petrol and diesel oil, pitch again through follow-up hydrogenation art breading.Pyrolysis gas can be used as the thermal source of drying unit and low temperature pyrogenation unit, also can be further processed as LNG.
Biomass of the present utility model-coal coupling pyrolysis system, can impel biomass and coal coupling, has both made full use of biomass resource, in follow-up pyrolytic process, by biomass pyrolytic, impels pyrolysis of coal hydrogenation again, carries the high volatile yield of coal; Can also avoid in Low Temperature Pyrolysis Process, producing sulfurous gas in front end desulfurization, be conducive to environment protection.
Accompanying drawing explanation
Accompanying drawing is provided by the utility model, the schematic diagram of biomass-coal coupling pyrolysis system.
Reference numeral: 1-ball milling Rotary Drum Bioreactor, 2-kneader, 3-rotary kiln, 4-moisture collection device, 5-rotary retort.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Biomass-coal coupling pyrolysis system, comprises ball milling Rotary Drum Bioreactor 1, kneader 2, rotary kiln 3, moisture collection device 4 and rotary retort 5.
Described ball milling Rotary Drum Bioreactor 1, for a kind of airtight ball milling cylinder, comprises cylinder, batch mixing ball, heating temperature control device and the diffuser of bleeding.Low-rank coal and biomass enter after ball milling Rotary Drum Bioreactor 1, according to certain ratio of grinding media to material, add batch mixing ball, and rotary drum fully mixes coal and biomass.Mix rear ball material separated, take out batch mixing ball, then add microorganism, pass into the required atmosphere of microorganism growth, rotary drum makes microorganism to biomass and coal acting in conjunction.After biochemical reaction finishes, the mixture of biomass and coal is made agglomerate by kneader 2, in kneading process, can add suitable amount of adhesive.
Through the biomass of coupling processing and coal mixed pellet, enter rotary kiln 3 dry, biomass and coal mixed pellet are removed moisture after rotary kiln 3 heating, and moisture recycles after being collected by moisture collection device 4.
Dried biomass and coal mixed pellet enter rotary retort 5, and biomass and coal mixed pellet are interior by high-temperature gas direct heating at gas retort 5, and gas retort 5 is provided with heating unit to biomass and coal mixed pellet indirect heating simultaneously.
Biomass and coal mixed pellet pyrolysis product are Jiao, tar and pyrolysis gas, and Jiao's cake of press after cooling becomes piece, is prepared into formed coke and sells as product.Tar can be prepared the products such as petrol and diesel oil, pitch again through follow-up hydrogenation art breading.Pyrolysis gas can be used as the thermal source of drying unit and low temperature pyrogenation unit, also can be further processed as LNG.
Claims (3)
1. biomass-coal coupling pyrolysis system, is characterized in that, comprises ball milling Rotary Drum Bioreactor, kneader, rotary kiln, moisture collection device and rotary retort.
2. biomass according to claim 1-coal coupling pyrolysis system, is characterized in that, described ball milling Rotary Drum Bioreactor, is airtight ball milling cylinder, comprises cylinder, batch mixing ball, heating unit, temperature control unit and the diffuser of bleeding.
3. biomass according to claim 2-coal coupling pyrolysis system, is characterized in that, described heating unit is that uniform winding is in the heating zone of outer surface of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133339.4U CN203768294U (en) | 2014-03-22 | 2014-03-22 | Biomass-coal coupling pyrolytic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133339.4U CN203768294U (en) | 2014-03-22 | 2014-03-22 | Biomass-coal coupling pyrolytic system |
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| CN203768294U true CN203768294U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420133339.4U Expired - Fee Related CN203768294U (en) | 2014-03-22 | 2014-03-22 | Biomass-coal coupling pyrolytic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929052A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | A kind of moulded coal raw material containing low-order coal and biological particles |
-
2014
- 2014-03-22 CN CN201420133339.4U patent/CN203768294U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929052A (en) * | 2015-12-30 | 2017-07-07 | 北京三聚环保新材料股份有限公司 | A kind of moulded coal raw material containing low-order coal and biological particles |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140813 Termination date: 20190322 |