CN101845331A - Method for separating and condensing biomass cracking gases - Google Patents
Method for separating and condensing biomass cracking gases Download PDFInfo
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- CN101845331A CN101845331A CN201010195988A CN201010195988A CN101845331A CN 101845331 A CN101845331 A CN 101845331A CN 201010195988 A CN201010195988 A CN 201010195988A CN 201010195988 A CN201010195988 A CN 201010195988A CN 101845331 A CN101845331 A CN 101845331A
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- 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
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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
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Abstract
The invention provides a method for separating and condensing biomass cracking gases. The invention adopts a technical scheme that: after settlement and inertial dust collection, cracking gases produced by cracking biomass in a cracking furnace enter a water flow chiller and contact a water flow to be condensed fast, and the condensed cracking gases are divided into a gaseous phase product and a liquid phase product, wherein the gaseous phase product mainly comprises water vapor and combustible gases, wherein most of the water is removed from the gaseous phase product after condensation in condenser, the condensed water is returned to a storage tank of the liquid phase product, and the combustible gases enter a gas holder to be stored; and the liquid product mainly comprises the mixture of tar and pyroligneous liquor, which is collected in the storage tank, wherein a part of the water is delivered to a chilling condenser by a circulating pump for condensing high temperature cracking gases, and the rest of the water enters a fractionator for separating the tar from the pyroligneous liquor, and the tar and the pyroligneous liquor are delivered to respective storage tanks respectively for later use. The method for separating and condensing biomass cracking gases effectively solve the problems of dust collection, tar removal and the like in the cracking process and is simple in process and energy-saving.
Description
Technical field
The present invention relates to the method for separating and condensing in chemurgy field, particularly a kind of biomass cracking gases.
Background technology
Agricultural-forestry biomass (agricultural stalk, shell, forestry waste) is a renewable energy source, can be converted into solid, liquids and gases energy product by thermo-cracking, but present various biomass cracking method is mainly paid attention to scission reaction reactor and correlation technique, few for the separating treatment technical study that comes biomass cracking gases, collection, the many employings of separation for splitting gas directly are condensed to room temperature or extremely subzero 70 degree of deep cooling, and then further separate, these technology are feasible in laboratory theoretical investigation process, but can not adapt to the requirement that engineering is used.(more than 300 ℃) are gaseous state under the tar high temperature, and tar just has liquid to separate out between 200～300.In engineering is used, can cause the coal-tar middle oil weight component of splitting gas to be separated out step by step because of separating and condensing process improper, heavy constituent easily the deposition in system pipeline, solidify, cause the production equipment fault, and energy consumption is big, economy is also relatively poor.The patent of application number 200810141406.6 has been described a kind of working method of biomass, this method mainly pays attention to utilizing method dedustings such as sedimentation, cyclonic separation, silk screen filter, and separating and condensing tar, but in actual mechanical process, still can not well realize the separating and condensing of splitting gas.
Summary of the invention
At above-mentioned situation, overcome the prior art defective, the present invention's purpose is to provide a kind of method for separating and condensing of biomass cracking gases product, can solve effectively that condensation process in the sepn process of biomass cracking gases product is difficult to control, energy consumption height, less economical problem.The technical scheme of its solution is: biomass are after the pyrolyzer cracking, the splitting gas temperature that generates is more than 300 ℃, go out behind the dust more than 90% through sedimentation and inertial dust collection, contact with 90 ℃～100 ℃ current in the splitting gas ingoing stream chiller of temperature more than 300 ℃, splitting gas is condensed to 90 ℃～100 ℃ rapidly, and condensed splitting gas is separated into gas-phase product and liquid product.Mainly be water vapour and inflammable gas in the gas-phase product, gas-phase product is removed most of moisture after condenser condenses, and condensate return is to the liquid product storage tank, and inflammable gas enters gas holder and stores.Liquid product mainly is the mixture of tar and wood vinegar, be collected in the storage tank, temperature is 90 ℃～100 ℃, a liquid part is sent into the Quench condenser by recycle pump, be used for condensation Pintsch process gas, rest part enters fractionator, separating tar and wood vinegar, and the storage tank stores that tar and wood vinegar are sent into respectively separately is standby.
Beneficial effect of the present invention
The present invention utilizes the method condensation splitting gas of Quench, and the splitting gas more than 300 ℃ is directly utilized current Quench to 90 ℃～100 ℃, has avoided tar warm area between 200～300 in condensation process to stop and the deposition of heavy constituent occurs.Utilize Quench condenser current endothermic gasification, condenser condenses circulation, the temperature self-poise of Quench current is at 90 ℃～100 ℃, i.e. current absorption cracking gas heat gasifies many at most, condensation is also many, the absorption heat gasifies few at least, and condensation is also few, temperature control simple and stable.Simultaneously,, made full use of the energy of splitting gas itself, both guaranteed the flowability of tar, in separator, greatly reduced the fractionation energy consumption of tar and wood vinegar again during fractionation because the liquid portion temperature remains near 100 ℃ after the splitting gas condensation.The present invention is in the separating and condensing process of biomass cracking gases, Quench condensation, condensation and fractionation plant have been used in coordination, utilize aqueous vaporization, condensation cycle controlled chilling condensing temperature, being simple, energy-conservation, the economic biomass cracking gases method for separating and condensing of a kind of technology, is an innovation in biomass energy micronizing technology field.
Description of drawings
Accompanying drawing is a process flow sheet of the present invention.
Among the figure: 1, pyrolyzer; 2, settling pocket; 3, inertial dust separator; 4, Quench condenser; 5, wet tank; 6, recycle pump; 7, condenser; 8, fractionator; 9, gas holder; 10, tar jar; 11, wood vinegar jar.
Embodiment
Below in conjunction with practical situation the specific embodiment of the present invention is described in detail.
By accompanying drawing as can be seen, biomass of the present invention are behind pyrolyzer 1 heating pyrolyze, the Pintsch process gas (more than 300 ℃) that produces, flow is 100 kilograms/hour～5 tons/hour, splitting gas is through settling pocket 2, after inertial dust separator 3 dedustings, temperature still remains on more than 300 ℃, and Pintsch process gas enters Quench condenser 4, contacts with 90 ℃～100 ℃ current in the Quench condenser 4, splitting gas is condensed to 90 ℃～100 ℃ rapidly, is divided into gas, liquid two-phase.Main containing water vapor of gas phase part and combustion gas component, after gas phase was partly passed through wet tank 5, by condenser 7 condensations, isolated moisture was back to wet tank 5, and gas holder 9 is sent in combustion gas.Condensed liquid ingredient mainly is the mixture of wood tar oil and wood vinegar, temperature is 90 ℃～100 ℃, be stored in the wet tank 5, a liquid part through recycle pump 6 be delivered to Quench condenser 4 as Pintsch process air cooling coagulate medium, a part enters fractionator 8, after fractionation, obtain tar and wood vinegar, be stored in tar jar 10 and wood vinegar jar 11 respectively, as other purposes.
Said pyrolyzer 1 is to be made by metallic substance or stupalith, refractory materials among the present invention, cracking temperature is 300 ℃～900 ℃, can be fixed bed, moving-bed or fluidized bed cracking stove, utilize combustion gas or liquid fuel heat, middle calorific value gas, tar that the combustion gas of using produces as biomass cracking, can use by single stove, also can many stoves parallel connections use; Said settling pocket 2 is meant circle or the square container with certain volume, adopts metallic substance to make; Inertial dust separator 3 is meant that cyclonic separator, venetian blind type inertial dust separator etc. utilize the dust separating dust removal installation of object principle of inertia; Quench condenser 4 is meant and utilizes the direct condenser that directly contacts with gas of liquid, comprises washing tower, water bath, Venturi meter etc., can one or more parallel connections use; Wet tank 5 is for having the container of certain volume; Recycle pump 6 can be liquid delivery pumps such as impeller pump, toothed gear pump, rotor pump; Condenser 7 is air-cooled or water-cooled condenser; Fractionator 8 is still distillation device, board-like separation column, filler separation column; Gas holder 9 wet types or dry-seal gasholder are meant the closed container of building with metallic substance, brick, cement etc.; Tar filling 10, wood vinegar jar 11 are meant the closed container of building with metallic substance, brick, cement etc.Said biomass are meant agriculture and forestry organic waste material, comprise various stalks such as cotton stalk, wheat straw stalk, rice straw, beans stalk, maize straw, Pericarppium arachidis hypogaeae, sawdust, wood chip, branch etc.
Embodiment 1
Pyrolyzer cracking cotton stalk of the present invention, per hour produce 150 kilograms of splitting gases, 450 ℃ of splitting gas temperature, splitting gas through settling pocket 2 separate with inertial dust separator 3 remove dust after temperature be 440 ℃, splitting gas enters Quench condenser 4 and condenses to 90 ℃～100 ℃, be divided into gas, the liquid two-phase, the gas phase flow is 70 kilograms/hour, gas phase enters condenser 7 through wet tank 5, send into gas holder after isolating moisture, liquid product is stored in wet tank 5 earlier, 90 ℃～100 ℃ of temperature, a part is sent into the Quench condenser as heat-eliminating medium cooling down high-temperature splitting gas by recycle pump 6 with 600 kilograms/hour, and a part is sent into the fractionator fractionation for 80 kilograms/hour with flow, obtain 10 kilograms/hour in tar, 70 kilograms/hour in wood vinegar.
Pyrolyzer cracking maize straw of the present invention, per hour produce 1000 kilograms of splitting gases, 400 ℃ of splitting gas temperature, splitting gas through settling pocket 2 separate with inertial dust separator 3 remove dust after temperature be 390 ℃, splitting gas enters Quench condenser 4 and condenses to 90 ℃～100 ℃, be divided into gas, the liquid two-phase, the gas phase flow is 400 kilograms/hour, gas phase enters condenser 7 through wet tank 5, send into gas holder after isolating moisture, liquid product is stored in wet tank 5 earlier, 90 ℃～100 ℃ of temperature, a part is sent into the Quench condenser as heat-eliminating medium cooling down high-temperature splitting gas by recycle pump 6 with 5000 kilograms/hour, and a part is sent into the fractionator fractionation for 600 kilograms/hour with flow, obtain 60 kilograms/hour in tar, 540 kilograms/hour in wood vinegar.
Pyrolyzer cracking Pericarppium arachidis hypogaeae of the present invention, per hour produce 5000 kilograms of splitting gases, 450 ℃ of splitting gas temperature, splitting gas through settling pocket 2 separate with inertial dust separator 3 remove dust after temperature be 440 ℃, splitting gas enters Quench condenser 4 and condenses to 90 ℃～100 ℃, be divided into gas, the liquid two-phase, the gas phase flow is 2100 kilograms/hour, gas phase enters condenser 7 through wet tank 5, send into gas holder after isolating moisture, liquid product is stored in wet tank 5 earlier, 90 ℃～100 ℃ of temperature, a part is sent into the Quench condenser as heat-eliminating medium cooling down high-temperature splitting gas by recycle pump 6 with 25000 kilograms/hour, and a part is sent into the fractionator fractionation for 2900 kilograms/hour with flow, obtain 280 kilograms/hour in tar, 2620 kilograms/hour in wood vinegar.
Pyrolyzer cracking wheat straw stalk of the present invention, per hour produce 2000 kilograms of splitting gases, 400 ℃ of splitting gas temperature, splitting gas through settling pocket 2 separate with inertial dust separator 3 remove dust after temperature be 380 ℃, splitting gas enters Quench condenser 4 and condenses to 90 ℃～100 ℃, be divided into gas, the liquid two-phase, the gas phase flow is 800 kilograms/hour, gas phase enters condenser 7 through wet tank 5, send into gas holder after isolating moisture, liquid product is stored in wet tank 5 earlier, 90 ℃～100 ℃ of temperature, a part is sent into the Quench condenser as heat-eliminating medium cooling down high-temperature splitting gas by recycle pump 6 with 10000 kilograms/hour, and a part is sent into the fractionator fractionation for 1200 kilograms/hour with flow, obtain 100 kilograms/hour in tar, 1100 kilograms/hour in wood vinegar.
Pyrolyzer cracking beans stalk of the present invention, per hour produce 900 kilograms of splitting gases, 420 ℃ of splitting gas temperature, splitting gas through settling pocket 2 separate with inertial dust separator 3 remove dust after temperature be 400 ℃, splitting gas enters Quench condenser 4 and condenses to 90 ℃～100 ℃, be divided into gas, the liquid two-phase, the gas phase flow is 300 kilograms/hour, gas phase enters condenser 7 through wet tank 5, send into gas holder after isolating moisture, liquid product is stored in wet tank 5 earlier, 90 ℃～100 ℃ of temperature, a part is sent into the Quench condenser as heat-eliminating medium cooling down high-temperature splitting gas by recycle pump 6 with 5000 kilograms/hour, and a part is sent into the fractionator fractionation for 600 kilograms/hour with flow, obtain 50 kilograms/hour in tar, 550 kilograms/hour in wood vinegar.
Pyrolyzer cracking sawdust of the present invention, per hour produce 3000 kilograms of splitting gases, 500 ℃ of splitting gas temperature, splitting gas through settling pocket 2 separate with inertial dust separator 3 remove dust after temperature be 480 ℃, splitting gas enters Quench condenser 4 and condenses to 90 ℃～100 ℃, be divided into gas, the liquid two-phase, the gas phase flow is 1300 kilograms/hour, gas phase enters condenser 7 through wet tank 5, send into gas holder after isolating moisture, liquid product is stored in wet tank 5 earlier, 90 ℃～100 ℃ of temperature, a part is sent into the Quench condenser as heat-eliminating medium cooling down high-temperature splitting gas by recycle pump 6 with 16000 kilograms/hour, and a part is sent into the fractionator fractionation for 1700 kilograms/hour with flow, obtain 150 kilograms/hour in tar, 1550 kilograms/hour in wood vinegar.
Claims (9)
1. the method for separating and condensing of a biomass cracking gases; It is characterized in that: biomass are after the pyrolyzer cracking, the splitting gas temperature that generates is more than 300 ℃, go out behind the dust more than 90% through sedimentation and inertial dust collection, contact with 90 ℃～100 ℃ current in the splitting gas ingoing stream chiller of temperature more than 300 ℃, splitting gas is condensed to 90 ℃～100 ℃ rapidly, condensed splitting gas is separated into gas-phase product and liquid product, mainly water vapour and inflammable gas in the gas-phase product, gas-phase product is removed most of moisture after condenser condenses, condensate return is to the liquid product storage tank, inflammable gas enters gas holder and stores, liquid product mainly is the mixture of tar and wood vinegar, be collected in the storage tank, temperature is 90 ℃～100 ℃, and a liquid part is sent into the Quench condenser by recycle pump, be used for condensation Pintsch process gas, rest part enters fractionator, separating tar and wood vinegar, and the storage tank stores that tar and wood vinegar are sent into respectively separately is standby.
2. the method for separating and condensing of a kind of biomass cracking gases according to claim 1; It is characterized in that: said settling pocket, inertial dust separator, Quench condenser, wet tank and pipeline will be incubated.
3. the method for separating and condensing of a kind of biomass cracking gases according to claim 1; It is characterized in that: said inertial dust separator is meant that cyclonic separator, venetian blind type inertial dust separator etc. utilize the dust separating dust removal installation of object principle of inertia.
4. the method for separating and condensing of a kind of biomass cracking gases according to claim 1; It is characterized in that: said Quench condenser is meant and utilizes the direct condenser that directly contacts with gas of liquid, comprises washing tower, water bath, Venturi meter etc., can one or more in parallel uses.
5. the method for separating and condensing of a kind of biomass cracking gases according to claim 1; It is characterized in that: said fractionator is still distillation device, packing tower or tray column.
6. the method for separating and condensing of a kind of biomass cracking gases according to claim 1; It is characterized in that: said condenser is air-cooled or water-cooled condenser
7. the method for separating and condensing of a kind of biomass cracking gases according to claim 1; It is characterized in that: the temperature that splitting gas enters the Quench condenser is higher than 300 ℃.
8. the method for separating and condensing of a kind of biomass cracking gases according to claim 1; It is characterized in that; Said Quench condensing temperature is in 90 ℃～100 ℃ scopes.
9. the method for separating and condensing of a kind of biomass cracking gases according to claim 1; It is characterized in that: the control that the Quench condensing temperature is 90 ℃～100 ℃ is that gasification, the refrigeration cycle self-poise of utilizing Quench condenser and condenser obtain.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816575A (en) * | 2012-07-24 | 2012-12-12 | 上海清平环保科技有限公司 | Apparatus and process for destructive distillation and cracking of biomass |
| CN104858224A (en) * | 2015-05-27 | 2015-08-26 | 南京宇行环保科技有限公司 | Method for restoring heavy metal in soil by utilizing activating agent |
| CN104874594A (en) * | 2015-05-27 | 2015-09-02 | 南京宇行环保科技有限公司 | Remediation method for cadmium-contaminated soil |
| CN107261718A (en) * | 2017-07-11 | 2017-10-20 | 盐城绿城环保科技有限公司 | A kind of organic solid waste Non-oxygen pyrolytic solid liquid gas three-phase separation device and method |
| CN108753373A (en) * | 2018-04-27 | 2018-11-06 | 北京三聚环保新材料股份有限公司 | A kind of pyrolysis gas of biomass fractional condensing process and its device |
| CN111499499A (en) * | 2020-04-03 | 2020-08-07 | 上海艾麟化工技术服务中心 | Purification method and purification system of natural guaiacol |
| CN112391189A (en) * | 2019-08-15 | 2021-02-23 | 李犀守 | Organic acid production apparatus and method |
| CN113956092A (en) * | 2018-04-11 | 2022-01-21 | 新疆农垦科学院 | Application of cotton vinegar liquid in promoting cotton growth and increasing yield, trace water-soluble fertilizer in cotton and preparation method thereof |
| WO2022141624A1 (en) * | 2021-01-04 | 2022-07-07 | 山东省科学院能源研究所 | Continuous solid organic matter pyrolysis polygeneration system and method for use thereof |
| CN115287088A (en) * | 2022-08-30 | 2022-11-04 | 昆明理工大学 | Device for pyrolysis and gasification of biomass and separation of products |
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| CN102816575A (en) * | 2012-07-24 | 2012-12-12 | 上海清平环保科技有限公司 | Apparatus and process for destructive distillation and cracking of biomass |
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| CN104858224A (en) * | 2015-05-27 | 2015-08-26 | 南京宇行环保科技有限公司 | Method for restoring heavy metal in soil by utilizing activating agent |
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| CN107261718A (en) * | 2017-07-11 | 2017-10-20 | 盐城绿城环保科技有限公司 | A kind of organic solid waste Non-oxygen pyrolytic solid liquid gas three-phase separation device and method |
| CN113956092A (en) * | 2018-04-11 | 2022-01-21 | 新疆农垦科学院 | Application of cotton vinegar liquid in promoting cotton growth and increasing yield, trace water-soluble fertilizer in cotton and preparation method thereof |
| CN108753373A (en) * | 2018-04-27 | 2018-11-06 | 北京三聚环保新材料股份有限公司 | A kind of pyrolysis gas of biomass fractional condensing process and its device |
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| CN112391189B (en) * | 2019-08-15 | 2021-09-14 | 李犀守 | Organic acid production apparatus and method |
| CN111499499A (en) * | 2020-04-03 | 2020-08-07 | 上海艾麟化工技术服务中心 | Purification method and purification system of natural guaiacol |
| CN111499499B (en) * | 2020-04-03 | 2023-12-22 | 上海道沌机械设备有限公司 | Purification method and purification system of natural guaiacol |
| WO2022141624A1 (en) * | 2021-01-04 | 2022-07-07 | 山东省科学院能源研究所 | Continuous solid organic matter pyrolysis polygeneration system and method for use thereof |
| CN115287088A (en) * | 2022-08-30 | 2022-11-04 | 昆明理工大学 | Device for pyrolysis and gasification of biomass and separation of products |
| CN115287088B (en) * | 2022-08-30 | 2024-01-05 | 昆明理工大学 | Device for pyrolyzing and gasifying biomass and separating products |
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Application publication date: 20100929 |