CN103965971B - Double-tower type coal tar recovering system and recovery method - Google Patents
Double-tower type coal tar recovering system and recovery method Download PDFInfo
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- CN103965971B CN103965971B CN201410213111.0A CN201410213111A CN103965971B CN 103965971 B CN103965971 B CN 103965971B CN 201410213111 A CN201410213111 A CN 201410213111A CN 103965971 B CN103965971 B CN 103965971B
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Abstract
The invention discloses a kind of double-tower type coal tar recovering system, comprise fly-ash separator (2), be connected with the outlet of pyrolysis oven (1), dedusting is carried out to the pyrolysis gas that pyrolysis oven (1) produces; Heavy coal tar washing tower (3), is connected with the outlet of fly-ash separator (2), reclaims the heavy coal tar in pyrolysis gas; Light tar washing tower (4), is connected with the outlet of heavy coal tar washing tower (3), reclaims the light tar in pyrolysis gas; Electrical tar precipitator (5), is connected with the outlet of light tar washing tower (4), reclaims the coal tar droplet in pyrolysis gas.The invention also discloses a kind of double-tower type coal tar recovering method.Double-tower type coal tar recovering system of the present invention and recovery method adopt double tower circulating cooling high-temperature hot to vent one's spleen, and separately reclaim heavy component and the light component of coal tar, the light tar in pyrolysis gas total number can be separated out, reclaims, and dustiness are very low.
Description
Technical field
The present invention relates to a kind of coal tar recovering system, particularly relate to a kind of double-tower type coal tar recovering system and recovery method.
Background technology
Low-rank coal is by after the pyrolysis of high temperature starvation, and the high-temperature hot that can produce containing tar is vented one's spleen, and can carry a large amount of dust secretly in pyrolysis gas simultaneously.Through fly-ash separator by the pyrolysis gas after most of dust removing, again by utilizing heat-eliminating medium and high-temperature hot direct contact heat transfer of venting one's spleen to cool or indirect heat exchange cools, reclaim the coal tar in pyrolysis gas, in this stage, be not also captured down in the lump by the dust that fly-ash separator is collected.
At present, the technique purified of venting one's spleen of the high-temperature hot after dedusting is mainly contained: utilize ammonia circulation spraying cooling pyrolysis gas and electrical tar precipitator to reclaim tar; Or utilize tar recirculation spraying cooling pyrolysis gas and the electrical tar precipitator after heat exchange cooling reclaimed to reclaim tar; Or utilize the indirect cooling heat of heat-eliminating medium to vent one's spleen and electrical tar precipitator recovery tar.
Specifically, publication number is that the patent document of CN103409174A discloses a kind of low water consumption coal gas cooling coke tar recovery system and method.Wherein, this system comprises tar spray column, one-level electrical tar precipitator, inter cooler, secondary electric fishing light oil device, gas exhaust machine, tar pool, tar recycle pump, the first tar tank, the second tar tank, the 3rd tar tank, pressure pump, water purifying tank, cooling tower.High temperature rough gas containing tar enters tar spray column, tar recycle pump is adopted to spray in tower by the cooling tar in the tar pool of bottom by spray header, cooling down high-temperature raw gas, the tar of cooled trapping enters bottom tar pool, after cooling, raw gas enters one-level electrical tar precipitator, raw gas after one-level electrical tar precipitator trapping tar is after inter cooler cools further, enter secondary electric fishing light oil device and remove tar in coal gas further, not containing the cooled coal gas of tar, deliver to next process through gas exhaust machine.
Publication number is that the patent document of CN103013583A discloses the cooling of a kind of pyrolysis coal gas dust removal and tar recovery process.Wherein, the device that this technique adopts comprises the superheater, hot precipitator, accident quench tower, heat recovery boiler, inter cooler and the electrical tar precipitator that connect successively.Pyrolysis coal gas is first passed into superheater and is cooled to 400 ~ 700 DEG C by this technique, then pass into hot precipitator and carry out dedusting, then heat recovery boiler is passed into, be cooled to 50 ~ 100 DEG C, simultaneously condensation water and tar, then pass into inter cooler, be cooled to 10 ~ 30 DEG C, further condensation water and tar, finally pass into electrical tar precipitator, reclaims the tar fog and water smoke that carry.
Publication number is that the patent document of CN102492490A discloses a kind of gas purification process and system.Wherein, this technique for carry out predrying by feed coal in moisture eliminator; then the pyrolysis of high temperature pyrolysis stove is sent into; pyrolysis produces containing ash, sends into high temperature cyclone separator removing macrobead dust containing the raw gas of coal tar; raw gas after removing macrobead dust is again through the further dedusting of high-temperature filter; coal gas after dedusting is again through waste heat boiler recovery waste heat; the coal tar fluid counter current contact that the coal gas of heat exchange to 300-350 DEG C enters quenching column and 40-80 DEG C carries out washing, cooling, and the coal tar contained in coal gas enters in coal tar fluid and discharges by the bottom of tower.
Mainly there is the shortcoming of following several respects in above-mentioned existing technique: 1) cooling section heat transfer effect is effective not as direct contact heat transfer indirectly, and equipment size is large, and facility investment is large; 2) an existing tower tar circulated sprinkling cooling down high-temperature pyrolysis gas reclaims tar technique and exists because circulation tar viscosity causes greatly circulate smooth and heat of tar to change the problems such as weak effect, and the light component organic efficiency existed in addition in tar is low; 3) do not arrange mist eliminator in the washing tower that existing technique adopts, cause pyrolysis gas to carry tar droplet secretly and enter in hypomere equipment, add the load of hypomere equipment.
Summary of the invention
The object of the present invention is to provide and a kind ofly separately can reclaim the heavy component of coal tar and the double-tower type coal tar recovering system of light component and recovery method.
For achieving the above object, the technical scheme of a kind of double-tower type coal tar recovering system of the present invention and recovery method is:
A kind of double-tower type coal tar recovering system, for reclaiming the coal tar in the pyrolysis gas of pyrolysis oven generation, comprising: fly-ash separator, being connected with the outlet of pyrolysis oven, carry out dedusting to the pyrolysis gas that pyrolysis oven produces; Heavy coal tar washing tower, is connected with the outlet of fly-ash separator, and inside is provided with reverse spray equipment, and reverse spray equipment utilizes heavy coal tar to carry out reverse cooling to pyrolysis gas, reclaims the heavy coal tar in pyrolysis gas; Light tar washing tower, be connected with the outlet of heavy coal tar washing tower, inside is provided with reverse spray equipment, and reverse spray equipment utilizes light tar to carry out reverse cooling to pyrolysis gas, reclaims the light tar in pyrolysis gas; Electrical tar precipitator, is connected with the outlet of light tar washing tower, reclaims the coal tar droplet in pyrolysis gas.
Further, the bottom of heavy coal tar washing tower is provided with the coal tar oil sump for collecting heavy coal tar, and reverse spray equipment is connected with coal tar oil sump, recycles the heavy coal tar in coal tar oil sump; The bottom of light tar washing tower is provided with the coal tar oil sump for collecting light tar, and reverse spray equipment is connected with coal tar oil sump, recycles the light tar in coal tar oil sump.
Further, be provided with interchanger between the reverse spray equipment in heavy coal tar washing tower and coal tar oil sump, interchanger is for changing the temperature of heavy coal tar; Be provided with interchanger between reverse spray equipment in light tar washing tower and coal tar oil sump, interchanger is for changing the temperature of light tar.
Further, the coal tar outlet of electrical tar precipitator is connected with the coal tar oil sump of light tar wash tower bottoms with the coal tar oil sump of heavy coal tar wash tower bottoms respectively, and the light tar reclaimed in electrical tar precipitator flow in light tar pond and/or heavy coal tar oil sump.
Further, the exit of heavy coal tar washing tower and light tar washing tower is respectively arranged with the mist eliminator for reclaiming the coal tar droplet in pyrolysis gas.
A kind of double-tower type coal tar recovering method, for reclaiming the coal tar in the pyrolysis gas of pyrolysis oven generation, comprise the following steps: the temperature that pyrolysis oven produces is that the pyrolysis gas of 300-500 DEG C enters in fly-ash separator and carries out dedusting, and the pyrolysis gas after dedusting enters in heavy coal tar washing tower; Heavy coal tar washing tower utilizes reverse spray equipment to carry out reverse cooling to the pyrolysis gas after dedusting, reclaims heavy coal tar, the cooling fluid of reverse spray equipment ejection to be temperature the be heavy coal tar of 60-130 DEG C; Heavy coal tar falls into the coal tar oil sump of heavy coal tar wash tower bottoms, and cooled temperature is that the pyrolysis gas of 100-150 DEG C enters in light tar washing tower; Light tar washing tower utilizes reverse spray equipment to carry out reverse cooling to the pyrolysis gas entered, and reclaims light tar, the cooling fluid of reverse spray equipment ejection to be temperature the be light tar of 30-50 DEG C; Light tar falls into the coal tar oil sump of light tar wash tower bottoms, and cooled temperature is that the pyrolysis gas of 40-60 DEG C enters in electrical tar precipitator; The coal tar droplet in pyrolysis gas collected by electrical tar precipitator, and is delivered to by the light tar be recovered in the coal tar oil sump of light tar wash tower bottoms or in the coal tar oil sump of heavy coal tar wash tower bottoms.
Further, the temperature falling into the heavy coal tar of the coal tar oil sump of heavy coal tar wash tower bottoms is 150-200 DEG C, by interchanger, the temperature of heavy coal tar is reduced to 60-130 DEG C, a heavy coal tar part after cooling, as output of products, uses as cooling fluid in the reverse spray equipment of part input.
Further, the temperature falling into the light tar of the coal tar oil sump of light tar wash tower bottoms is 80-100 DEG C, by interchanger, the temperature of light tar is reduced to 30-50 DEG C, a light tar part after cooling, as output of products, uses as cooling fluid in the reverse spray equipment of part input.
Further, after first reclaiming coal tar droplet by mist eliminator by the cooled pyrolysis gas of heavy coal tar washing tower, then enter in light tar washing tower, mist eliminator is arranged on the exit of heavy coal tar washing tower.
Further, after first reclaiming coal tar droplet by mist eliminator by the cooled pyrolysis gas of light tar washing tower, then enter in electrical tar precipitator, mist eliminator is arranged on the exit of light tar washing tower.
Compared with existing coal tar recovering technique, double-tower type coal tar recovering system of the present invention and recovery method have the following advantages:
1) adopt double tower circulating cooling high-temperature hot to vent one's spleen, separately reclaim heavy component and the light component of coal tar, the light tar in pyrolysis gas total number can be separated out, reclaims, and dustiness is very low;
2) the light tar part that electrical tar precipitator reclaims is delivered to heavy coal tar washing tower, to regulate the tar viscosity in heavy coal tar washing tower, ensure the steady running of system;
3) washing tower top increases mist eliminator, and in effective minimizing pyrolysis gas, coal tar droplet carries secretly.
Accompanying drawing explanation
Fig. 1 is the structural representation of double-tower type coal tar recovering system of the present invention.
Embodiment
In order to better understand object of the present invention, structure and function, below in conjunction with accompanying drawing, further detailed description is done to a kind of double-tower type coal tar recovering system of the present invention and recovery method.
As shown in Figure 1, double-tower type coal tar recovering system of the present invention, for reclaiming the coal tar in the pyrolysis gas of pyrolysis oven 1 generation, comprises the fly-ash separator 2, heavy coal tar washing tower 3, light tar washing tower 4 and the electrical tar precipitator 5 that connect in turn.Wherein, fly-ash separator 2 is connected with the outlet of pyrolysis oven 1, for carrying out dedusting to the pyrolysis gas produced in pyrolysis oven 1, can be existing ceramic filter fly-ash separator, electric precipitator and multicyclone dust collector etc.
Further, heavy coal tar washing tower 3 is connected with the outlet of fly-ash separator 2, inside is provided with reverse spray equipment 31, reverse spray equipment 31 utilizes heavy coal tar to carry out reverse cooling to pyrolysis gas, to reclaim the heavy coal tar (initial boiling point temperature is the coal tar of more than 170 DEG C) in pyrolysis gas.Specifically, as shown in Figure 1, reverse spray equipment 31 in the present embodiment comprises multiple shower nozzle, shower nozzle sprays cooling fluid (heavy coal tar) down, the pyrolysis gas entered in heavy coal tar washing tower 3 then upwards flows, thus pyrolysis gas and cooling fluid just can reversely contact, heat exchange, the heavy coal tar in pyrolysis gas is separated out.
Further, the bottom of heavy coal tar washing tower 3 is provided with the coal tar oil sump 32 for collecting heavy coal tar, and reverse spray equipment 31 is connected with coal tar oil sump 32, thus, and the heavy coal tar that just can be recycled in coal tar oil sump 32.In addition, interchanger 33 is also provided with between reverse spray equipment 31 in heavy coal tar washing tower 3 and coal tar oil sump 32, interchanger 33 is for changing the temperature of heavy coal tar, change the heavy coal tar part after temperature as output of products, use as cooling fluid in the reverse spray equipment 31 of part input.
Further, heavy coal tar washing tower 3 exit also can be provided with the mist eliminator (not shown) for reclaiming the coal tar droplet in pyrolysis gas.In the present invention, mist eliminator is set, entrained oil mist in pyrolysis gas can be reduced, reduce the load of hypomere equipment.
Further, light tar washing tower 4 is connected with the outlet of heavy coal tar washing tower 3, inside is provided with reverse spray equipment 41, reverse spray equipment 41 utilizes light tar to carry out reverse cooling to pyrolysis gas, to reclaim the light tar (end point temperature is the coal tar of less than 170 DEG C) in pyrolysis gas.Specifically, as shown in Figure 1, reverse spray equipment 41 in the present embodiment also comprises multiple shower nozzle, shower nozzle sprays cooling fluid (light tar) down, the pyrolysis gas entered in light tar washing tower 4 then upwards flows, thus pyrolysis gas and cooling fluid just can reversely contact, heat exchange, the light tar in pyrolysis gas is separated out.
Further, the bottom of light tar washing tower 4 is also provided with the coal tar oil sump 42 for collecting light tar, and reverse spray equipment 41 is connected with coal tar oil sump 42, recycles the light tar in coal tar oil sump 42.In addition, interchanger 43 is also provided with between reverse spray equipment 41 in light tar washing tower 4 and coal tar oil sump 42, interchanger 43 is for changing the temperature of light tar, change the light tar part after temperature as output of products, use as cooling fluid in the reverse spray equipment 41 of part input.
Further, light tar washing tower 4 exit also can be provided with the mist eliminator (not shown) for reclaiming the coal tar droplet in pyrolysis gas.In the present invention, mist eliminator is set, entrained oil mist in pyrolysis gas can be reduced, reduce the load of hypomere equipment.
Further, electrical tar precipitator 5 is connected with the outlet of light tar washing tower 4, for reclaiming the coal tar droplet in pyrolysis gas, the coal tar outlet of electrical tar precipitator 5 is then connected with the coal tar oil sump 42 bottom light tar washing tower 4 with the coal tar oil sump 32 bottom heavy coal tar washing tower 3 respectively, thus, the light tar reclaimed in electrical tar precipitator 5 just optionally flow in coal tar oil sump 32 and/or coal tar oil sump 42, time as too high in the coal tar viscosity in heavy coal tar washing tower 3, the light tar that electrical tar precipitator 5 can be utilized to be recovered to is to regulate the coal tar viscosity in heavy coal tar washing tower 3, the steady running of guarantee system.In addition, vent one's spleen from electrical tar precipitator 5 Low Temperature Thermal out, be sent to downstream treatment process.
With reference to Fig. 1, double-tower type coal tar recovering method of the present invention comprises the following steps:
1) temperature that pyrolysis oven 1 produces is that the pyrolysis gas of 300-500 DEG C enters in fly-ash separator 2 and carries out dedusting, and the pyrolysis gas after dedusting enters in heavy coal tar washing tower 3.
2) pyrolysis gas after heavy coal tar washing tower 3 utilizes the 31 pairs of dedustings of reverse spray equipment carries out reverse cooling, reclaims heavy coal tar, the cooling fluid that reverse spray equipment 31 sprays to be temperature the be heavy coal tar of 60-130 DEG C.
3) heavy coal tar falls into the coal tar oil sump 32 bottom heavy coal tar washing tower 3, temperature is 150-200 DEG C, by interchanger 33, the temperature of heavy coal tar is reduced to 60-130 DEG C, a heavy coal tar part after cooling, as output of products, uses as cooling fluid in the reverse spray equipment 31 of part input.
Cooled temperature is that the pyrolysis gas of 100-150 DEG C enters in light tar washing tower 4, and before pyrolysis gas enters light tar washing tower 4, the mist eliminator by being arranged on heavy coal tar washing tower 3 exit reclaims the coal tar droplet in pyrolysis gas.
4) light tar washing tower 4 utilizes reverse spray equipment 41 to carry out reverse cooling to the pyrolysis gas entered, and reclaims light tar, the cooling fluid that reverse spray equipment 41 sprays to be temperature the be light tar of 30-50 DEG C.
5) light tar falls into the coal tar oil sump 42 bottom light tar washing tower 4, temperature is 80-100 DEG C, by interchanger 43, the temperature of light tar is reduced to 30-50 DEG C, a light tar part after cooling, as output of products, uses as cooling fluid in the reverse spray equipment 41 of part input.
Cooled temperature is that the pyrolysis gas of 40-60 DEG C enters in electrical tar precipitator 5, and before pyrolysis gas enters electrical tar precipitator 5, the mist eliminator by being arranged on light tar washing tower 4 exit reclaims the coal tar droplet in pyrolysis gas.
6) the coal tar droplet in pyrolysis gas collected by electrical tar precipitator 5, and is delivered to by the light tar be recovered in the coal tar oil sump 32 in the coal tar oil sump 42 bottom light tar washing tower 4 or bottom heavy coal tar washing tower 3.
7) from electrical tar precipitator 5 low temperature pyrogenation gas fed downstream treatment process out.
Further describe invention has been by specific embodiment above; but it should be understood that; here concrete description; should not be construed as the restriction to the spirit and scope of the invention; one of ordinary skilled in the art to the various amendments that above-described embodiment is made, belongs to the scope that the present invention protects after reading this specification.
Claims (8)
1. a double-tower type coal tar recovering system, for reclaiming the coal tar in pyrolysis gas that pyrolysis oven (1) produces, is characterized in that, comprise:
Fly-ash separator (2), is connected with the outlet of pyrolysis oven (1), carries out dedusting to the pyrolysis gas that pyrolysis oven (1) produces;
Heavy coal tar washing tower (3), be connected with the outlet of fly-ash separator (2), inside is provided with reverse spray equipment (31), reverse spray equipment (31) utilizes heavy coal tar to carry out reverse cooling to pyrolysis gas, reclaims the heavy coal tar in pyrolysis gas;
Light tar washing tower (4), be connected with the outlet of heavy coal tar washing tower (3), inside is provided with reverse spray equipment (41), reverse spray equipment (41) utilizes light tar to carry out reverse cooling to pyrolysis gas, reclaims the light tar in pyrolysis gas;
Electrical tar precipitator (5), is connected with the outlet of light tar washing tower (4), reclaims the coal tar droplet in pyrolysis gas;
The bottom of heavy coal tar washing tower (3) is provided with the coal tar oil sump (32) for collecting heavy coal tar, reverse spray equipment (31) is connected with coal tar oil sump (32), recycles the heavy coal tar in coal tar oil sump (32); The bottom of light tar washing tower (4) is provided with the coal tar oil sump (42) for collecting light tar, reverse spray equipment (41) is connected with coal tar oil sump (42), recycles the light tar in coal tar oil sump (42);
The coal tar outlet of electrical tar precipitator (5) is connected with the coal tar oil sump (42) of light tar washing tower (4) bottom with the coal tar oil sump (32) of heavy coal tar washing tower (3) bottom respectively, and the light tar reclaimed in electrical tar precipitator (5) flow in coal tar oil sump (32) and/or coal tar oil sump (42).
2. double-tower type coal tar recovering system according to claim 1, it is characterized in that, be provided with interchanger (33) between reverse spray equipment (31) in heavy coal tar washing tower (3) and coal tar oil sump (32), interchanger (33) is for changing the temperature of heavy coal tar; Be provided with interchanger (43) between reverse spray equipment (41) in light tar washing tower (4) and coal tar oil sump (42), interchanger (43) is for changing the temperature of light tar.
3. double-tower type coal tar recovering system according to claim 1, it is characterized in that, the exit of heavy coal tar washing tower (3) and light tar washing tower (4) is respectively arranged with the mist eliminator for reclaiming the coal tar droplet in pyrolysis gas.
4. a double-tower type coal tar recovering method, for reclaiming the coal tar in pyrolysis gas that pyrolysis oven (1) produces, is characterized in that, comprise the following steps:
The temperature that pyrolysis oven (1) produces is that the pyrolysis gas of 300-500 DEG C enters in fly-ash separator (2) and carries out dedusting, and the pyrolysis gas after dedusting enters in heavy coal tar washing tower (3);
Heavy coal tar washing tower (3) utilizes reverse spray equipment (31) to carry out reverse cooling to the pyrolysis gas after dedusting, reclaim heavy coal tar, the cooling fluid that reverse spray equipment (31) sprays to be temperature the be heavy coal tar of 60-130 DEG C;
Heavy coal tar falls into the coal tar oil sump (32) of heavy coal tar washing tower (3) bottom, and cooled temperature is that the pyrolysis gas of 100-150 DEG C enters in light tar washing tower (4);
Light tar washing tower (4) utilizes reverse spray equipment (41) to carry out reverse cooling to the pyrolysis gas entered, reclaim light tar, the cooling fluid that reverse spray equipment (41) sprays to be temperature the be light tar of 30-50 DEG C;
Light tar falls into the coal tar oil sump (42) of light tar washing tower (4) bottom, and cooled temperature is that the pyrolysis gas of 40-60 DEG C enters in electrical tar precipitator (5);
The coal tar droplet in pyrolysis gas collected by electrical tar precipitator (5), and is delivered to by the light tar be recovered in the coal tar oil sump (32) in the coal tar oil sump (42) of light tar washing tower (4) bottom or bottom heavy coal tar washing tower (3).
5. double-tower type coal tar recovering method according to claim 4, it is characterized in that, the temperature falling into the heavy coal tar of the coal tar oil sump (32) of heavy coal tar washing tower (3) bottom is 150-200 DEG C, by interchanger (33), the temperature of heavy coal tar is reduced to 60-130 DEG C, a heavy coal tar part after cooling, as output of products, uses as cooling fluid in a part reverse spray equipment of input (31).
6. double-tower type coal tar recovering method according to claim 4, it is characterized in that, the temperature falling into the light tar of the coal tar oil sump (42) of light tar washing tower (4) bottom is 80-100 DEG C, by interchanger (43), the temperature of light tar is reduced to 30-50 DEG C, a light tar part after cooling, as output of products, uses as cooling fluid in a part reverse spray equipment of input (41).
7. double-tower type coal tar recovering method according to claim 4, it is characterized in that, after first reclaiming coal tar droplet by mist eliminator by heavy coal tar washing tower (3) cooled pyrolysis gas, enter in light tar washing tower (4) again, mist eliminator is arranged on the exit of heavy coal tar washing tower (3).
8. double-tower type coal tar recovering method according to claim 4, it is characterized in that, after first reclaiming coal tar droplet by mist eliminator by light tar washing tower (4) cooled pyrolysis gas, enter in electrical tar precipitator (5), mist eliminator is arranged on the exit of light tar washing tower (4) again.
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| CN104388128B (en) * | 2014-11-26 | 2017-05-10 | 陕西煤业化工技术研究院有限责任公司 | System and method for dedusting of pyrolysis raw gas and tar recycling employing oil-cooling |
| CN104449880B (en) * | 2014-12-16 | 2018-01-09 | 新奥科技发展有限公司 | A kind of raw gas purifying method and device |
| CN106244248B (en) * | 2016-08-18 | 2021-09-17 | 樊晓光 | Coke oven gas cooling-waste heat recovery device and process |
| CN106281475A (en) * | 2016-09-09 | 2017-01-04 | 新疆广汇中化能源技术开发有限公司 | Raw coke oven gas dust arrester |
| CN108753372A (en) * | 2018-07-25 | 2018-11-06 | 易高环保能源研究院有限公司 | The device and method of oil wash purification and Oil Recovery for pyrolysis gas |
| CN109453621B (en) * | 2018-12-21 | 2024-06-25 | 江苏格陵兰传热科技有限公司 | Waste gas recycling energy-saving device |
| CN109504468A (en) * | 2018-12-26 | 2019-03-22 | 陕西煤业化工集团神木天元化工有限公司 | The recovery system of coal tar in a kind of pyrolysis coal gas |
| CN109880658B (en) * | 2019-04-04 | 2024-07-02 | 陕西煤业化工技术研究院有限责任公司 | Tar recovery system and process |
| CN110922995A (en) * | 2019-11-20 | 2020-03-27 | 新奥生物质能(天津)有限公司 | Biomass high-temperature pyrolysis gas treatment method and treatment system |
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| CN102585918B (en) * | 2012-02-17 | 2013-12-25 | 南京工业大学 | Process and system for deeply removing tar through biomass gas coupling adsorption |
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