CN102643673A - Method and device for preparing biomass gas with high calorific value by dry method - Google Patents
Method and device for preparing biomass gas with high calorific value by dry method Download PDFInfo
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Abstract
The invention discloses a method for preparing biomass gas with high calorific value by a dry method. The method comprises the steps of: (1) preparing materials; (2) feeding and manufacturing the gas; (3) removing dust; (4) exchanging heat; and (5) separating the gas and liquid; after heat exchange, mixed gas is separated in a gas-liquid separation tower, and liquid medium can be separated out and then enters into a pyroligneous pool at the fixed time from the bottom of the gas-liquid separation tower through secondary discharge; and the mixed gas is sent into a liquid collection tank from a gas outlet of the gas-liquid separation tower through a high-pressure high-temperature resistant fan. After the method is adopted, sewage is not produced, and the part liquid medium is only formed by the water content in gas preparation raw material in the gas preparation process and is discharged into the pyroligneous pool, so that the method is free from pollution for the environment and environment-friendly in design; and in the gas preparation process, the dust removal rate of the mixed gas is more than 95%, so that equipment and a pipeline can not be blocked, the gas can be continuously prepared, and the normal production demand of a user can be guaranteed.
Description
Technical field
The present invention relates to a kind of producing gas method, be specifically related to dry method biomass high heating value combustion gas producing gas method.
Background technology
The biological fuel gas of China recent years development and use all is the low heat value biomass combustion gas; Be mainly used in the rural area, concentrate the small power generation unit of life air feed and exploitation in recent years to use gas; These are strict to combustion gas makings; Makings must be pure, and it is very low to contain impurity such as tar in the finished product combustion gas just, the gas-made technology more complicated.And the high heating value biological fuel gas; The a large amount of tar that produced when then requiring biomass material in " biological fuel gas producer ", to carry out the thermalization reaction; The amount that in air mixture, accounts for is The more the better; In whole gas-made technology, should guarantee that the tar content loss in the air mixture is few more good more, this is an one of which; Its two: must the ash in the air mixture be removed more than 95%, could guarantee in the process of system gas continuously, to reach the purpose of producing the high heating value biological fuel gas.Aspect gas-made technology than the technology of producing the low heat value biomass combustion gas also more simply.
Detection, exploitation that Nonrenewable energy resources are worldwide a large amount of; Make Nonrenewable energy resources withered day by day, thereby cause domestic and international energy shortage, China leaps to second-biggest-in-the-world energy expenditure state especially, and how to tap a new source of energy then becomes the emphasis of China and even world technology circle problem.
In 1998 JMQ gasifying stalk unit by contriver's design; Jiaozuo City newly developed area enemy Hua Zhuan has installed in the village the first cover gas making machine group in Henan Province; Its technical process is following: by the worm conveyor material loading; In vapourizing furnace, carry out the thermalization reaction; Further remove small amount of dust and tar, combustion gas sent into dust cleaning case and got into the cleaner II once more through tornado dust collector dedusting, cleaner I purifying gas, cooling tank cooling gas, filtration, wet type low pressure steel device cabinet is sent in combustion gas through water seal by roots blower.Once lighting of this unit success puts into operation.The evaluation that effluent south Provincial Department of Agriculture is presided over August 6,2 000 is checked and accepted specialists meeting and is passed through.Issued product innovation (new technology) and identified that act of reception gives economy and trade section mirror (testing) word (2000) No. 100.
Combustion gas and gas appliance product quality supervision and inspection station are detected through Henan Province, and this equipment clean system uses dry gas cleaning method main economic and technical indices as shown in table 1.
JMQ gasifying stalk unit the operation several years in, its advantage and problem are following: advantage be do not have sewage, be the unit technical process of environment-friendly type.Problem: inclined to one side middle and lower part, (1) vapourizing furnace high-temperature zone, under the situation of negative pressure operation, there is not effective falling temperature technique to guarantee again, when system gas surpasses 3-5 hour continuously, tend to make the grate distortion, so can not guarantee normal air feed.
(2) the cleaner I is in operation, and has part dust and the filler in part tar and the cleaner to be in the same place with fixed attention, if often not changing filler will reduce purification efficiency, moreover changes difficulty of primary purification material ratio clearly; Also there is same problem in cleaner II.Difference size in labour intensity aspect when just changing clearly causes makings unstable.
Table 1 purification system is used dry gas cleaning method main economic and technical indices
(3) under the situation of problem (2), corresponding combustion gas tar content less stable through roots blower adds impeller of blower gap little (having only tens); Winter particularly; The gas of start system once more after the shutdown need be loosening with boiling water heating and pipe wrench, could start shooting.
Present domestic straw fuel gas unit: 1. much adopting water-ring vacuum pump is that dry-and wet-type combines, and washing process decoking, these units must have few tens cubic metres, the effluent cycle pond of big last hectostere.To produce a large amount of sewage like this, produce very heavy-gravity slush mixture, be very easy to blocking pipe, the cleaning difficulty.Contaminate environment.It or not the unit of environment-friendly type.2. no matter adopt the straw fuel gas unit of which kind of technology, owing to the producer unreasonable structure, so all operations continuously for a long time of its producer.3. present domestic gas making machine group all is little unit, and the gas making machine group that per hour surpasses 500Nm3 maybe be just seldom.
(4) combustion gas quality is unstable, can stop up the kitchen range hole, causes to the user and uses difficulty.
With regard to the present straw fuel gas unit of above introduction; The situation of operation if the structure of producer does not change, does not adopt advanced decoking, dust removal installation and advanced gas-made technology; Just can not design, can produce high-quality biological fuel gas and large-scale air feed unit.Nearly only limitting with the village over 10 years is the small-sized unit of unit air feed, although have nothing in common with each other as the technology of taking of above introduction, all has the degree different problems and does not solve so far.
Practical experience through for many years with improve in August, 2006 contriver accomplished the design of " biomass fuel gas gas-making method by dry method " (per hour gas production rate 500Nm3/h), the design of 1000Nm3/h, 2000N/m3 is also accomplished until now.
Built up the supply station sample project that first adopts this design on September 27th, 2007, once drop into igniting and move successfully in Pang Jiachuan village, Qin Jiazhuan township, Lingchuan County, Shanxi Province.Normal always now safe operation air feed.
North, Changzhi City Changzhi County was Bei Lingtou village, township and built up second supply station in the Shanxi Province in May, 2010.On August 28th, 2010, by the grand ribbon-cutting ceremony of city, county leader participation.
" biomass fuel gas gas-making method by dry method " in the past few years from biological fuel gas producer, purification, decoking and operation, whole technology is in constantly improvement and perfect; At present, be perfect producing gas method at this producing gas method of China.Because this producing gas method possesses following advantage: (1) technology is reasonable, easy to operate, operating safety; (2) biological fuel gas producer: 1. adopt furnace bottom to carry out heat exchange, make bottom temperature in continuous gas-making process with freezing air, can be above 300 ℃; Show from the system gas of the practice thermometric instrument that can be observed in service, air mixture from the temperature out of " biological fuel gas producer " always all between 180 ℃-280 ℃, such temperature definitely can guarantee the downdraft furnace double-edged fine-toothed comb can be continuously, safe operation; 2. adopt the thick pure aluminium silicate warming plate insulation of 50mm in the stove, refractory brick is built by laying bricks or stones, can guarantee that so not only the thermalization reaction is carried out smoothly in the stove, and externally thermal radiation is very little, has created good working environment to operator.3. the more important thing is; Because air mixture is from the biological fuel gas producer; The temperature of coming out is very low, has created good condition not only for the technologies such as purification, heat exchange, decoking of " biomass fuel gas gas-making method by dry method ", has also created excellent condition for invention " dry method biomass high heating value combustion gas producing gas method "; We can say does not have such " biological fuel gas producer " yet, and the invention that realize " dry method biomass high heating value combustion gas producing gas method " also is very difficult.Chinese patent ZL2007200899944 discloses contriver's biological fuel gas producer.(3) whole process using the principle of high temperature ash disposal, low temperature decoking, pipeline was never found latch up phenomenon in gas-making process; (4) the design selects the roots blower delivery of fuel gas for use, and shell and tube heat exchanger cooling (air mixture is through in the pipe, and cold water is between pipe) is adopted in the air mixture cooling; Do not adopt washing decoking and cooling, so, the effluent cycle pond do not had; Not having sewage pollution, is the new design of an environment-friendly type; (5) the design's decoking adopts the electric fishing decoking, from the gas station of having built up, in practical operation situation for many years, is for the conclusion of electric fishing decoking: easy and simple to handle, operating safety, seldom maintenance, decoking efficient are high.For example: finished product combustion gas impurity is very low; Detect through sampling, national standard≤50mg/Nm3, detected result 5.3 mg/Nm3 (specifically consult by national authority and detect unit; " chemical industrial gas quality supervision and test " center, the rustic station sampling examining report in mountain range, north, Changzhi County, Shanxi).(6) whole process flow is shown by thermometric, pressure instrument, can recognize the running condition of total system at any time, guarantees the normal safe operation of equipment.Chinese patent ZL2007100542202 discloses contriver's biomass fuel gas gas-making method by dry method.
At present, energy shortage both at home and abroad, China leaps to second-biggest-in-the-world energy expenditure big country especially.I will fill up a blank for China is walking out a new road aspect the development and use of biomass new forms of energy; For providing a large amount of, reproducible biomass high heating value combustion gas new forms of energy, China's Industrial Stoves and other various industries contribute.
In October, 2005, Henan Province's Jiaozuo City Li He village designed one group small-sized " dry method biomass high heating value combustion gas gas making machine group " (raw material is the wood fragments pieces); Supply a small-sized push pedal klining pottery aborning the thermal zone of kiln show that by thermopair digital display temperature control instrument top temperature can reach 1400 ℃.
By the tame large-scale timber stoving in the bright swallow in Wuxi new forms of energy Science and Technology Ltd. of group and Indonesia Surabaja city one factory, the biomass high heating value combustion gas gas making machine group of signatory per hour gas production rate 600Nm3/h by my design provides seven kilneyes simultaneously.The once success of examination on January 14th, 2012 fire, very well.The very high requirement that can satisfy your factory's production fully of calorific value, the high heating value biological fuel gas that utilizes a large amount of Wood wastes of factory to make, for the Chinese businessman Wang boss of this factory can save the Sweet natural gas expense in every month, 1,000,000 yuan of conversion Renminbi.
Summary of the invention
The technical problem that the present invention will solve provides a kind of dry method biomass high heating value combustion gas producing gas method and device thereof, and its calorific value can compare favourably with the calorific value of high-quality coal.
Technical scheme of the present invention is: a kind of dry method biomass high heating value combustion gas producing gas method, and its step is following:
(1) gets the raw materials ready: select block biomass material for use, comprise wood fragments piece, corn cob, agricultural stalk briquetting, biomass garbage briquetting;
(2) material loading system gas: biomass material is added in the biological fuel gas producer, carry out the thermalization reaction, generate air mixture;
(3) dedusting: air mixture is got in the tornado dust collector, remove the ash of 50-80% in the air mixture; And then get in the deashing tower, carrying out smart deliming, the ash in the air mixture is below 5%;
(4) heat exchange: the air mixture after the dedusting is through heat exchanger, and the air mixture temperature of heat exchanger exit is 75-90 ℃, and condensed liquid medium, gets in the wood vinegar pond through secondary emission from the interchanger bottom, and air mixture gets into the gas-liquid separation tower;
(5) gas-liquid separation: the air mixture after the heat exchange is isolated liquid medium in the gas-liquid separation tower; Regularly get into the wood vinegar pond through secondary emission from the bottom of gas-liquid separation tower, air mixture is sent into the liquid collecting jar by the high temperature resistant blower fan of high pressure from gas-liquid separation tower gas outlet.
The device of described dry method biomass high heating value combustion gas producing gas method; Comprise the biological fuel gas producer, biological fuel gas producer top is provided with automatic discharging hopper, and biological fuel gas producer below is provided with the storage ash bucket; Also comprise cyclonic separator; One end of cyclonic separator links to each other with the storage ash bucket, and the other end of cyclonic separator links to each other with the deashing tower, and the pipeline between cyclonic separator and the deashing tower is provided with the air purge pipe; The deashing tower links to each other with interchanger, and interchanger links to each other with the gas-liquid separation tower, and the gas-liquid separation tower links to each other with the liquid collecting jar, and the bottom of interchanger, gas-liquid separation tower and liquid collecting jar is provided with the wood vinegar pond.
Said deashing tower is 3-5.
Pipeline between said gas-liquid separation tower and the liquid collecting jar is provided with high pressure positive blower, and the pipeline between liquid collecting jar and the high pressure positive blower is provided with to diffuse and receives flow container, diffuses to receive flow container to be provided with bleeder.
The invention has the beneficial effects as follows: 1, not having sewage to produce, have only the moisture that includes of system gas raw material in gas-making process, to form the partially liq medium, enter in the wood vinegar pond, environment is not polluted, is the design of environment-friendly type; 2, air mixture guarantees that user's ordinary production needs because dust removal efficiency more than 95%, so the situation of equipment and line clogging can not occur, can be made gas continuously in the gas-making process; 3, because an ash disposal does not remove tar, this is the major cause that improves the biological fuel gas calorific value.Its calorific value can not be lower than the calorific value of high-quality coal; 4, " dry method biomass high heating value combustion gas producing gas method " and the supporting use of novel texture " biological fuel gas producer " (at present having accomplished per hour gas production rate 600Nlm3/h, the design of 1000Nlm3/h 2000Nlm3/h); 5, whole process flow is handsome in appearance, and pressure measurement, temperature instrumentation monitoring are arranged again, can understand the running condition of total system at any time, guarantees the normal safe operation of equipment; 6, simple to operate, good work environment, labour intensity is low, creates a bad border of good operation to operator; The equipment of 7 " dry method biomass high heating value combustion gas producing gas methods " lacks than the equipment of " biomass fuel gas gas-making method by dry method "; Operational path is short, can be Industrial Stoves and every profession and trade like this and uses the user of biomass high heating value combustion gas to bring bigger economically material benefit; 8, mass development high heating value biological fuel gas will have profound significance aspect the socialist economic construction to China.
Description of drawings
Fig. 1 is a synoptic diagram of the present invention;
Fig. 2 is an A place enlarged view among Fig. 1;
Fig. 3 is a B place enlarged view among Fig. 1.
Embodiment
A kind of dry method biomass high heating value combustion gas producing gas method, its step is following:
(1) gets the raw materials ready: select block biomass material for use, comprise wood fragments piece, corn cob, agricultural stalk briquetting, biomass garbage briquetting;
(2) material loading system gas: adopt the single track electric hoist, promote the automatic discharging hopper of filling raw material, biomass material is added in the biological fuel gas producer, carry out the thermalization reaction, generate air mixture;
(3) dedusting: air mixture is got in the tornado dust collector, remove the ash of 50-80% in the air mixture, its ash gets in the storage ash bucket; And then get in three grades of deashing towers, carrying out smart deliming, the ash in the air mixture is below 5%;
(4) heat exchange: the air mixture after the dedusting is through heat exchanger, and the air mixture temperature of heat exchanger exit is 75-90 ℃, and condensed liquid medium, gets in the wood vinegar pond through secondary emission from the interchanger bottom, and air mixture gets into the gas-liquid separation tower;
(5) gas-liquid separation: the air mixture after the heat exchange is isolated liquid medium in the gas-liquid separation tower; Regularly get into the wood vinegar pond through secondary emission from the bottom of gas-liquid separation tower, air mixture is sent into the liquid collecting jar by the high temperature resistant blower fan of high pressure from gas-liquid separation tower gas outlet.
Air mixture is after through the liquid collecting jar; Making continuously under the situation of gas, also having the partially liq medium of lacking to assemble and exist in the liquid collecting jar, can be by working specification; On time through secondary emission; Get in the wood vinegar pond through pipeline, it mixes the high heating value combustion gas, can directly go to supply required kiln to use from liquid collecting jar air mixture outlet.
The device of described dry method biomass high heating value combustion gas producing gas method comprises biological fuel gas producer 2, and biological fuel gas producer 2 tops are provided with automatic discharging hopper 1; Biological fuel gas producer 2 belows are provided with storage ash bucket 4; It is characterized in that: also comprise cyclonic separator 5, an end of cyclonic separator 5 links to each other with storage ash bucket 4, and the other end of cyclonic separator 5 links to each other with deashing tower 8; Deashing tower 8 is 3-5, and the pipeline between cyclonic separator 5 and the deashing tower 8 is provided with air purge pipe 24; Deashing tower 8 links to each other with interchanger 10, and interchanger 10 links to each other with gas-liquid separation tower 12, and gas-liquid separation tower 12 links to each other with liquid collecting jar 17, and the bottom of interchanger 10, gas-liquid separation tower 12 and liquid collecting jar 17 is provided with the wood vinegar pond.Pipeline between gas-liquid separation tower 12 and the liquid collecting jar 17 is provided with high pressure positive blower 16, and the pipeline between liquid collecting jar 17 and the high pressure positive blower 16 is provided with to diffuse and receives flow container 14, diffuses to receive flow container 14 to be provided with bleeder 13.
Among the present invention, high pressure positive blower adopts the high temperature resistant blower fan of being produced by the Dongguan City Fuersheng Electromechanical Technology Co., Ltd of high auspicious high pressure, can select for use suitable model to use according to the difference of system tolerance size.
Operation steps of the present invention:
(1) gets the raw materials ready: select block biomass material for use, comprise wood fragments piece, corn cob, agricultural stalk briquetting, biomass garbage briquetting;
(2) material loading: by the single track electric hoist; The biomass material of automatic discharging hopper 1 of will packing into is mentioned; Be sitting on the biological fuel gas producer fire door 2; Slack rope artifact raw material adds in the stove automatically, carries out thermalization reaction, and large number of biological matter combustion ash is in the opened push-pull valve 3 of furnace bottom enters the storage ash bucket 4;
(3) system gas: system gas raw material carries out the thermalization reaction after adding the biological flue gas producer, produces air mixture, and air mixture gets into tornado dust collector 5 by the outlet of biological fuel gas producer;
(4) dedusting: under the effect of tornado dust collector 5,50%-80% ash that combustion gas is carried is removed, and the ash of removing is opened gate valve 6 and entered in the storage ash bucket 4 through pipeline; By working specification push-pull valve 3 and gate valve 6 are closed, after opening plate 27 and will store up ash bucket 4 ash emptyings, close push-pull valve 27, open push-pull valve 3 and gate valve 6 more at once; Air mixture gets into deashing towers 8 through tornado dust collector 5 outlet through gate valve 26, thermometer 7, and deashing tower 8 is 1. 2. 3. three grades of smart ash disposal towers, and the interior ash of air mixture is lower than below 5%;
(5) interchanger: contain ash and be lower than 5% air mixture, get into interchanger (10) through vacuum table 9; Interchanger (10) adopts the shell and tube heat exchanger air mixture through in the tubulation, and cold water is controlled at air mixture thermometer 11 between 75 ℃-90 ℃ through carrying out heat exchange between the tubulation pipe, gets into gas-liquid separation tower 12 from interchanger 10 gas outlets; Get into the cleaning cold water of interchanger 10, the clean water basin of after heat exchange, going into to circulate; Liquid medium under the condensation is gone into the wood vinegar pond through secondary emission;
(6) gas-liquid separation tower: what are different because system gas raw material contains moisture; So how much also different get into the liquid medium that carries out thermalization reaction generation in " biological fuel gas producer ", air mixture velocity ratio in equipment and pipeline is very fast, and the liquid medium of depending merely in the interchanger 10 venting air mixtures is impossible; Must be through gas-liquid separation tower 12; Carry out gas-liquid separation once more, liquid medium is at the bottom of the tower, in secondary emission gets into the wood vinegar pond; Air mixture is sent into liquid collecting jar with air mixture through vacuum breaker 18, gate valve 20 by the resistant to elevated temperatures blower fan 16 of high pressure from 12 outlets of gas-liquid separation tower;
(7) liquid collecting jar: air mixture is sent into liquid collecting jar 17 by high pressure positive blower 16, under the situation of continuous system gas, also has the partially liq media set of lacking to have 17 li of flow containers, by working specification, regularly through secondary emission with liquid medium, enter in the wood vinegar pond.It contains mixed type high heating value combustion gas such as combustion gas, vaporific tar, can directly supply required kiln production to use.
Point fire preparing gas
The first step: the block biomass material that will select for use is ready to, and by the single track electric hoist, the biomass massive raw material of the automatic discharging hopper 1 of will packing into promotes the height that the bed of material in " biological fuel gas producer " stove of packing into installs to regulation and stops charging;
Second step: open push-pull valve 3, gate valve 6 and 26 is closed push-pull valve 27;
The 3rd step: the gate valve 25 of air purge pipe 24 is closed;
The 4th step: the ball valve 23 of oil port 22 is closed;
The 5th step: gate valve 21 is opened, and 20 is semi-open, and ball valve 15 is closed, and tapping ball valve 19 is closed;
The 6th step: be stained with oil with soft bavin or cotton yarn, wait and light in the back input " biological fuel gas producer ", open high pressure positive blower 16, when watching the jaundice of bleeder dark brown, the combustion of beginning pilot, the burner of kiln, after the burning, gate valve 21 is closed, and begins normal air feed;
The 7th step: continuously in the gas-making process, by working specification regularly open ball valve 15, tapping ball valve 19 enters liquid medium in the wood vinegar pond.
Shut down and safeguard
The first step: open gate valve 21 earlier, closing gate valve 20 again;
Second step: open air purge pipe 24 gate valves 25, closing gate valve 26 again;
The 3rd step: open oil port 22 ball valves 23, adds No. 38 lubricating oils 100 grams when preventing to start shooting the bad startup horse back of high pressure positive blower close ball valve 23;
The 4th step: after accomplishing above operation, high pressure positive blower 16 reruned 2 to 3 minutes, stopped high pressure positive blower 16 operations, can safeguard;
Start operation again after the maintenance of the equipment
The first step: close air purge pipe 24 gate valves 25,, open gate valve 26;
Second step: closing gate valve 21, open gate valve 20;
The 3rd step: after accomplishing above operation, begin to start high pressure positive blower 16, get final product aerogenesis, light kiln burner and drop into ordinary production.
Claims (4)
1. dry method biomass high heating value combustion gas producing gas method is characterized in that its step is following:
(1) gets the raw materials ready: select block biomass material for use, comprise wood fragments piece, corn cob, agricultural stalk briquetting, biomass garbage briquetting;
(2) material loading system gas: biomass material is added in the biological fuel gas producer, carry out the thermalization reaction, generate air mixture;
(3) dedusting: air mixture is got in the tornado dust collector, remove the ash of 50-80% in the air mixture; And then get in the deashing tower, carrying out smart deliming, the ash in the air mixture is below 5%;
(4) heat exchange: the air mixture after the dedusting is through heat exchanger, and the air mixture temperature of heat exchanger exit is 75-90 ℃, and condensed liquid medium, gets in the wood vinegar pond through secondary emission from the interchanger bottom, and air mixture gets into the gas-liquid separation tower;
(5) gas-liquid separation: the air mixture after the heat exchange is isolated liquid medium in the gas-liquid separation tower; Regularly get into the wood vinegar pond through secondary emission from the bottom of gas-liquid separation tower, air mixture is sent into the liquid collecting jar by the high temperature resistant blower fan of high pressure from gas-liquid separation tower gas outlet.
2. the device of dry method biomass high heating value combustion gas producing gas method according to claim 1; Comprise biological fuel gas producer (2); Biological fuel gas producer (2) top is provided with automatic discharging hopper (1); Biological fuel gas producer (2) below is provided with storage ash bucket (4), it is characterized in that: also comprise cyclonic separator (5), an end of cyclonic separator (5) links to each other with storage ash bucket (4); The other end of cyclonic separator (5) links to each other with deashing tower (8), and the pipeline between cyclonic separator (5) and the deashing tower (8) is provided with air purge pipe (24); Deashing tower (8) links to each other with interchanger (10); Interchanger (10) links to each other with gas-liquid separation tower (12); Gas-liquid separation tower (12) links to each other with liquid collecting jar (17), and the bottom of interchanger (10), gas-liquid separation tower (12) and liquid collecting jar (17) is provided with the wood vinegar pond.
3. the device of dry method biomass high heating value combustion gas producing gas method according to claim 2 is characterized in that: said deashing tower (8) is 3-5.
4. the device of dry method biomass high heating value combustion gas producing gas method according to claim 2; It is characterized in that: the pipeline between said gas-liquid separation tower (12) and the liquid collecting jar (17) is provided with high pressure positive blower (16); Pipeline between liquid collecting jar (17) and the high pressure positive blower (16) is provided with to diffuse and receives flow container (14), diffuses to receive flow container (14) to be provided with bleeder (13).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105524658A (en) * | 2016-01-10 | 2016-04-27 | 张勇 | Biomass fuel gas whole-process segmented purification method |
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| CN102329654A (en) * | 2011-08-30 | 2012-01-25 | 张建超 | Biomass gasification device and process |
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| CN1485415A (en) * | 2002-09-28 | 2004-03-31 | 中国科学院广州能源研究所 | Cracking purification method for combustible gas produced by gasifying crude material |
| CN101284995A (en) * | 2007-04-12 | 2008-10-15 | 陈天祥 | Biomass fuel gas gas-making method by dry method |
| CN101696360A (en) * | 2009-10-23 | 2010-04-21 | 王保林 | Industrial gasification unit of straw gas capable of continuously producing without decoking |
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| CN105524658A (en) * | 2016-01-10 | 2016-04-27 | 张勇 | Biomass fuel gas whole-process segmented purification method |
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Application publication date: 20120822 |