CN102304374A - Leakage-free recovery device and recovery method of coal carbonization gas - Google Patents
Leakage-free recovery device and recovery method of coal carbonization gas Download PDFInfo
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- CN102304374A CN102304374A CN201110221653A CN201110221653A CN102304374A CN 102304374 A CN102304374 A CN 102304374A CN 201110221653 A CN201110221653 A CN 201110221653A CN 201110221653 A CN201110221653 A CN 201110221653A CN 102304374 A CN102304374 A CN 102304374A
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Abstract
The invention discloses a leakage-free recovery device and a recovery method of a coal carbonization gas. The leakage-free recovery device comprises a heating furnace, wherein a pyrolyzer which outwardly stretches is laterally arranged in the heating furnace; the inner end head of the pyrolyzer is communicated with a gas scavenging tube which outwardly stretches to be communicated with a scavenging gas inlet; the outer end head of the pyrolyzer is sealed by a liquid seal tank, and the middle of the pyrolyzer is communicated with a pyrolysis product delivery pipe; the pyrolysis product delivery pipe downwardly stretches to a gas-liquid separator submerged in a condensation tank; one end head of a gas sampling pipe is placed in the gas-liquid separator and outwardly stretches, and is communicated with a gas sampling port and a gas storage tank; and the gas storage tank is provided with a stirrer and also communicated with a pressure balancer and a communication pipe thereof. In the invention, the liquid seal device is arranged so that the whole air tightness of a carbonization system is ensured, and thus the leakage-free recovery of the coal carbonization gas is achieved; a gas scavenging structure is arranged at the bottom of the pyrolysis gas to scavenge the coal carbonization system, and coal carbonization is carried out when the concentration of scavenging gas is above 99%, thereby ensuring the truth and reliability of compositions and content measuring values of carbonization gas.
Description
Technical field
The present invention relates to a kind of dry distillation of coal gas recovering device and recovery method thereof; Specifically; The heating and the temperature controlling system that comprise dry distillation of coal device; The pyrolysis system that has liquid seal device, a kind of dry distillation of coal gas that the cooling of pyrolysis product, condensation and gas recovery system constitute does not have the retrieving arrangement of leakage and recovery method thereof.
Background technology
Coal carbonization is meant coal under the secluding air condition, and decomposes generates the process of coal gas, tar, crude benzol and coke.By the warm eventually difference of heating, can be divided into three kinds: 500～600 ℃ are low-temperature pyrolysis; 700～900 ℃ is medium temperature carbonization; 900～1100 ℃ is high temperature carbonization.
For evaluating various coals to making the flexibility of oil, and in the low-temperature pyrolysis industrial production, identify the character of feed coal and predict various yield of product, all need carry out the middle low-temperature pyrolysis experimental study of coal.Gas retort is the major equipment of low-temperature pyrolysis production technique, and it should guarantee, and process efficiency is high, easy to operate, data are reliable.The heat-supplying mode of gas retort is divided into external-heat and internal heat type.The heat that the external-heat stove is supplied with coal charge is to be imported into by the furnace wall outside; The internal heat type stove is swept body by hot blow heat is passed to coal charge, and the gas hot blow is swept body and directly got into the destructive distillation chamber, passes the granular destructive distillation bed of material of piece, and heat is passed to the bed of material.
The existing exothermic heating mode that adopts is mostly carried out the low-temperature pyrolysis of coal, and method comparatively commonly used is the low temperature aluminium rice steamer destructive distillation of GB/T 480-2000 coal and the tubular type low-temperature pyrolysis of GB1341 coal.
GB/T 480-2000 standard law has been stipulated the airtight methods of inspection aluminium Zeng Gai and aluminium rice steamer body: will building tight aluminium Zhen, to soak in the entry 10～30mm dark; In rice steamer, inflate, make the about 1961.3Pa of rice steamer internal gas pressure (gauge pressure), under this pressure, keep about 15 s; As do not have bubble generation, be airtight.As still can not airtightly then adopt abrasive method to make it reach airtight.Do to guarantee that aluminium Zhen aluminium unheated the time is discriminated and aluminium is discriminated the resistance to air loss between the lid like this, but low-temperature pyrolysis is under the situation of being heated, to carry out, under heated condition, whether can be airtight, also not mentioned in this document.Aluminium rice steamer delivery line adopts tight gastight cork stopper to be connected with Erlenmeyer flask; Aluminium rice steamer delivery line should stretch in the bottle; It is high half that built-in length is not less than bottle, but must not with bottle at the bottom of contact, by the slotting slight curving glass gas tube of people of another aperture of cork stopper; Supply to derive coal gas usefulness, each junction must be airtight.To the resistance to air loss of delivery line joint, do not describe the bubble-tight embodiment of concrete inspection in detail.
Among the GB1341-87, having stipulated the productive rate and the bituminous coal coking property mensuration of low-temperature pyrolysis product in brown coal and the bituminous coal, do not related to the analysis to coal gas composition and productive rate, only is that coal gas is derived (point burns or discharge outdoor) by gas tube.Integral construction is adopted in design to the destructive distillation pipe, has reduced interface, does not then have the resistance to air loss problem of destructive distillation pipe, but when the coal low-temperature pyrolysis, needs the secluding air heating, and there is a large amount of air in destructive distillation pipe inside.In receiving thermal process, inevitably can react with coal or coal gas.When the coal gas composition is analyzed, will produce very big error.At destructive distillation pipe opening part, be that simple requirement can not be leaked gas, but embodiment and not mentioned.
Existing document CN101880535 A also discloses " a kind of brown coal destructive distillation device and method ", and under the situation of brown coal not being processed, using gas or solid thermal do not purge body, and brown coal are directly dewatered and low-temperature pyrolysis.Its main purpose only is to obtain coal tar and semicoke, does not relate to the analysis to dry distillation gas component and component concentration.
In the above-mentioned dry distillation of coal excessively, for the data that make mensuration authentic and valid, resistance to air loss that must the assurance system.Shorten the connection portion of testing apparatus or the resistance to air loss of destructive distillation experiment preceding inspection aluminium Zeng Gai and aluminium rice steamer body, can't guarantee the whole resistance to air loss of distillation system, in destructive distillation gas, sneak into air in certain amount inevitably.During carrying out, coal during low-temperature pyrolysis, contains CO, CO in the dry distillation of coal gas of generation
2, CH
4, N
2Etc. component, the staple of air is O
2, N
2And a spot of CO
2, sneaking into of air will directly influence O in the destructive distillation gas
2, N
2The accuracy of content analysis; Simultaneously, when there is air in internal system, under heating condition, O
2Can be as ignition dope and dry distillation of coal gas or the coal generation CO that reacts
2, like this will be to the CO in the analytical results
2Component concentration exerts an influence; In addition, a small amount of CO in the air
2Also can influence CO
2The accuracy of component concentration.Therefore, authentic and valid for the data that make mensuration in dry distillation of coal pneumatolytic is analyzed, pressing for a kind of dry distillation of coal gas does not have the retrieving arrangement of leakage and recovery method thereof.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art, the present invention provides a kind of dry distillation of coal gas not have the retrieving arrangement of leakage and recovery method thereof, to realize the whole resistance to air loss of dry distillation of coal system, guarantees the accuracy and the safety of the composition and the assay of dry distillation of coal gas.
To achieve these goals, a kind of dry distillation of coal gas provided by the present invention does not have the leakage retrieving arrangement, comprises process furnace, temperature controller, thermopair, pyrolyzer, gas-liquid separator, condensation liquid bath, gas-holder, whisking appliance, gas purging pipe and liquid seal trough; Its constitutional features is:
Horizontal in a process furnace have an outward extending pyrolyzer.
The inner termination of said pyrolyzer is communicated with the gas purging pipe and stretches out and be communicated with sweep gas inlet; External end head is sealed by liquid seal trough, and intermediate connection has the pyrolysis product delivery line.
Said pyrolysis product delivery line extends downward in the gas-liquid separator that is submerged in the condensation liquid bath.
One termination of one gas sample tube places gas-liquid separator to stretch out, and is communicated with gas sampling mouth and gas-holder.
Be provided with whisking appliance in the said gas-holder, also be communicated with pressurizer and pipe thereof.
Do not have in the scheme of leaking retrieving arrangement at above-mentioned dry distillation of coal gas: the body of heater of process furnace is a rectangular configuration, and around its rectangle body of heater and bottom is provided with electric heater unit; The central authorities of its rectangle stove are provided with thermopair.Be provided with the recirculated water inlet in the bottom of condensation liquid bath.Bottom at gas-holder is provided with water port.
The present invention is a kind of to be used for above-mentioned dry distillation of coal gas does not have the recovery method that leaks retrieving arrangement, and its method is following:
General＜3.2mm coal grain places the inner termination of pyrolyzer; Through the gas purging pipe pyrolyzer is carried out gas purging, remove the gas in the pyrolyzer.
When sweeping gas concentration reaches 99% when above, begin to carry out coal carbonization.
After being warming up to 260 ℃ with the speed of 20 ℃/min, be heated to 600 ℃ with the speed of 5 ℃/min, constant temperature 40min is in real time to the sampling of destructive distillation gas and adopt gc to analyze.
After constant temperature finished, the gas that stirs in the gas-holder mixed, and adopted gc that the total mixed gas of destructive distillation is analyzed, and measured the O in its destructive distillation gas
2, N
2, CH
4, CO, CO
2, C
2H
4And C
2H
6Content.
A kind of dry distillation of coal gas of the present invention does not have the retrieving arrangement of leakage and recovery method thereof, compared with prior art, through liquid seal device is set, has guaranteed the whole resistance to air loss of dry distillation of coal system, has realized that dry distillation of coal gas does not have the recovery of leakage; Be provided with the gas purging structure in pyrolysis gas bottom, system cleans to the dry distillation of coal, reaches 99% when above in sweeping gas concentration, carries out the dry distillation of coal, has guaranteed the verity and the safety of destructive distillation gas composition and assay value.
Description of drawings
Fig. 1 is that dry distillation of coal gas of the present invention does not have the structural representation that leaks retrieving arrangement.
Fig. 2 is the structural representation of pyrolyzer liquid seal device of the present invention.
Among the figure: 1: temperature controller; 2: thermopair; 3: process furnace; 4: pyrolyzer; 5: circulating water outlet; 6: condensate trap; 7: gas-liquid separator; 8: the recirculated water inlet; 9: gas sample tube; 10: the gas sampling mouth; 11: gas-holder; 12: whisking appliance; 13: water port; 14: pressure equilibrium pipe; 15: pressurizer; 16: the pyrolyzer heating zone; 17: the gas purging pipe; 18: the sweep gas inlet; 19: the pyrolysis product delivery line; 20 dress discharge ports; 21: liquid seal trough.
Embodiment
Technical problem proposed by the invention is because the not enough accurate quantification problem of being brought when gas composition is analyzed of the structure of existing installation., coal gas need analyze when being analyzed each component in the coal gas; To confirm its calorific value and technic index; But because the entering of its air directly has influence on the accuracy of each index, the not accuracy problem of bringing therefrom to the gas composition quantitative analysis.The present invention is through implementing its technical scheme and embodiment is described in further detail, and those of ordinary skill in the art can realize said purpose of the present invention, also can embody beneficial effect of the present invention simultaneously.Its embodiment is following:
A kind of dry distillation of coal gas of the present invention does not have the retrieving arrangement of leakage and recovery method thereof, and its said device comprises the heating and the temperature controlling system of dry distillation of coal device, the pyrolysis system that has liquid seal device, pyrolysis product cooling, condensation and gas recovery system.
Wherein, heating and temperature controlling system comprise process furnace and temperature controller; Pyrolysis system comprises pyrolyzer that has liquid seal device and the gas purging structure of adorning discharge port; Pyrolysis product cooling, condensation and gas recovery system comprise the gas-holder and the pressure equilibrium setting device of gas-liquid separator, band fluid-tight and whipping appts.
Heating among the present invention and temperature controlling system, the outer heating arrangement of employing furnace bottom furnace wall, the thermopair 2 that is inserted pyrolyzer 4 tops by furnace roof carries out the monitoring of temperature, and temperature controller 1 carries out temperature control.
Pyrolysis system among the present invention comprises gas purging pipe, heating tube, tightness system; Gas purging pipe 17 is positioned at the afterbody of pyrolyzer 4; Its role is to remove pyrolyzer 4 inner airs, airborne oxygen and nitrogen can influence and make in the coal gas that pyrolysis produces the nitrogen oxygen level higher, influence its calorific value; The heating zone of pyrolyzer 4 is used to hold coal charge, and coal charge is in the heating zone decomposes, and the coal gas of generation is discharged by gas and tar delivery line; The dress discharge port is by the wedge shape plug seal, and tightness system is positioned at dress discharge port place, is connected through bite type with pyrolyzer 4; Tightness system is a column structure; Sealing liquid is housed therebetween, and the sealing liquid loadings is as the criterion to be not less than the dress discharge port, and its purpose is to solve a gas leak phenomenon slightly of dress discharge port.
Pyrolysis product cooling system among the present invention is made up of circulating condensing water tank, and water coolant carries out condensation to the gas-liquid separator in condensation and the gas recovery system.
Condensation among the present invention and gas recovery system are made up of gas-liquid separator, gas-holder, pressure equaliser.Gas-liquid separator is connected with the tar delivery line with gas, through conduit gas-liquid separator is connected with gas-holder, and pressure equaliser is connected in the bomb bottleneck, is used for Monitoring and Controlling bomb external and internal pressure; The bomb bottleneck is provided with spiral stirrer, is used for the gas uniform distribution when gas collecting finishes; Neck is provided with liquid seal trough, and connecting portion is played sealing function; The bomb bottom is provided with water port, is used for quantitatively producing the volume of coal gas.
Referring to Fig. 1 and Fig. 2, the described dry distillation of coal gas of embodiment of the present invention does not have the leakage retrieving arrangement, comprises the heating and the temperature controlling system of dry distillation of coal device, the pyrolysis system that has liquid seal device, pyrolysis product cooling, condensation and gas recovery system.
Feed coal at first gets into destructive distillation pipe heating zone 16, topped up with water in the liquid seal trough 21 at destructive distillation pipe port place by dress discharge port 20.From sweep gas inlet 18 logical sweep gas in system, the air in the purging system.During carrying out, coal during low-temperature pyrolysis, contains CO, CO in the dry distillation of coal gas of generation
2, CH
4, N
2Etc. component; The staple of air is O
2, N
2And a spot of CO
2, when internal system contains O
2The time, under heating condition, can be as ignition dope and coal gas, the coal generation CO that reacts
2, like this will be to the CO in the analytical results
2Component concentration exerts an influence, simultaneously airborne a small amount of CO
2Also can influence CO
2The measurement of component concentration; For making air purging in the distillation system clean and check the resistance to air loss of total system; The utilization chromatograph is analyzed system's end gas component concentration; When measure sweep gas content near 100% the time, think that the system air cleaning is clean and resistance to air loss is good, stop logical sweep gas.
In the retort process; The pyrolysis product that coal produces under heating condition is derived through pyrolysis product delivery line 19, after tar and water are cooled, is stored in the gas-liquid separator 7; The dry distillation of coal gas that produces is discharged water from gas-holder 11, the volume of drainage water is the volume of dry distillation gas.The generation of dry distillation of coal gas has increased internal system pressure; Make pressure equilibrium measure the pipe two ends under the pressure effect and liquid level difference occurs; At this moment need be through regulating the water port 13 of gas-holder 11 bottoms; Make internal system pressure consistent with normal atmosphere, when pressure equilibrium mensuration pipe both sides liquid level is on the same sea line, valve-off; The balancing side fixed tube both sides liquid level that constantly keep-ups pressure is on the same sea line.
The practical implementation step: 1. the coal sample with 20g left and right sides granularity＜3.2mm is positioned over pyrolyzer destructive distillation pipe bottom, connected system each several part; 2. dry distillation of coal system is carried out gas purging, the air in resistance to air loss and the scavenge system of inspection distillation system when sweeping gas concentration reaches 99% when above, begins to carry out coal carbonization; 3. be warming up to whole temperature with given pace, and the insulation regular hour, in real time to sampling of destructive distillation gas and chromatogram ration analysis; 4. after insulation finishes, stir gas in the gas-holder, gas is mixed, the total mixed gas of destructive distillation is carried out gas chromatographic analysis, measure O in the destructive distillation gas
2, N
2, H
2, CH
4, CO, CO
2, C
2H
4, C
2H
6Content.
Adopt the GC-950 type gas chromatograph of Haixin Chromatograph Instrument Co., Ltd., Shanghai's production and the GC 9890A type gas chromatograph of Shanghai Ling Hua Instr Ltd. to carry out pyrolysis coal gas compositional analysis.GC-950 type gas chromatograph is double T CD, and two channels, sampler temperature are 50 ℃, and carrier gas is H
2, flow rate of carrier gas is 40ml/min, 40 ℃ of column temperatures, and the 5A molecular sieve column can detect O
2, N
2, CH
4, gas such as CO content, the GDDX-502 post can detect CO
2, C
2H
4, C
2H
6Content Deng gas; GC 9890A type gas chromatograph sampler temperature is 80 ℃, and carrier gas is N
2, flow rate of carrier gas is 40ml/min, 80 ℃ of column temperatures, and 5A molecular sieve column post can detect H
2Content.
Embodiment 1
Adopt aluminium to discriminate the destructive distillation mode and carry out coal carbonization.
Coal: Hulun Buir coal; Weight: 20.003g; Granularity＜3.2mm; Distillation system sweeping gas: helium; Temperature programming: the speed with 20 ℃/min is warming up to 260 ℃, then with the speed heating of 5 ℃/min, and whole warm 600 ℃ of constant temperature 40min.Dry distillation of coal gas gas chromatographic analysis result sees table 1.
Table 1 aluminium is discriminated dry distiller different temperature points gas composition content
| The gas production numbering | Temperature/℃ | He/% | O 2/% | N 2/% | CH 4/% | CO/% | CO 2/% | C 2H 4/% | C 2H 6/% |
| 1 | 100 | 97.05 | 0.88 | 3.57 | ? | ? | ? | ? | 0.02 |
| 2 | 200 | 96.54 | 0.09 | 0.43 | ? | ? | ? | ? | 0.02 |
| 3 | 300 | 95.33 | 0.21 | 0.81 | ? | ? | ? | ? | 0.03 |
| 4 | 350 | 96.01 | 0.19 | 0.93 | ? | ? | 0.26 | 0.04 | 0.08 |
| 5 | 400 | 50.38 | 0.25 | 0.78 | ? | ? | 1.59 | 0.56 | 0.12 |
| 6 | 450 | 43.25 | 0.31 | 1.13 | 1.80 | 5.25 | 36.80 | 0.46 | 0.17 |
| 7 | 500 | 28.06 | 0.12 | 0.56 | 9.59 | 10.90 | 53.80 | 1.33 | 2.45 |
| 8 | 550 | 9.85 | 0.09 | 0.81 | 18.76 | 12.99 | 44.01 | 1.65 | 4.62 |
| 9 | 600 | 1.02 | 0.05 | 0.52 | 29.02 | 10.96 | 32.93 | 0.52 | 2.23 |
| Constant temperature 10min | 600 | 0.83 | 0.07 | 0.53 | 29.99 | 9.31 | 31.52 | 0.53 | 1.46 |
| Constant temperature 20min | 600 | 0.58 | 0.08 | 0.36 | 30.11 | 6.64 | 40.89 | 1.25 | 3.82 |
| Constant temperature 30min | 600 | 0.72 | 0.12 | 0.5 | 31.03 | 5.32 | 38.36 | 0.91 | 3.55 |
| Constant temperature 40min | 600 | 0.61 | 0.09 | 0.56 | 30.25 | 5.46 | 37.81 | 0.76 | 3.37 |
| Total gas | ? | 31.18 | 2.91 | 12.58 | 10.49 | 5.49 | 24.25 | 0.56 | 1.68 |
Can find out by table 1, adopt aluminium to discriminate coal is carried out destructive distillation, in total gas nitrogen oxygen than with air in nitrogen oxygen more approaching frequently, possibly be the infiltration that there is air in destructive distillation gas recovery system, extraneous air entering distillation system causes O in the destructive distillation gas
2Gas and N
2Gas is dense, can not true and accurate the composition and the content thereof of reflection dry distillation of coal gas.
Adopt aluminium rice steamer destructive distillation mode, the condensation of gas recovery system is carried out fluid-tight.
Coal: Hulun Buir coal; Weight: 19.996g; Granularity＜3.2mm; Distillation system sweeping gas: helium; Temperature programming: the speed with 20 ℃/min is warming up to 260 ℃, then with the speed heating of 5 ℃/min, and whole warm 600 ℃ of constant temperature 40min.Dry distillation of coal gas gas chromatographic analysis result sees table 2.
Different temperature points dry distillation of coal gas component concentration after table 2 fluid-tight
| The gas production numbering | Temperature/℃ | He/% | O 2/% | N 2/% | CH 4/% | CO/% | CO 2/% | C 2H 4/% | C 2H 6/% |
| 1 | 100 | 95.08 | 0.27 | 1.03 | ? | ? | ? | ? | ? |
| 2 | 200 | 95.53 | 0.22 | 0.77 | ? | ? | ? | ? | ? |
| 3 | 300 | 96.49 | 0.15 | 0.65 | ? | ? | ? | ? | ? |
| 4 | 350 | 94.01 | 0.24 | 0.94 | ? | ? | 0.36 | ? | ? |
| 5 | 400 | 93.02 | 0.19 | 0.93 | ? | 0.05 | 4.48 | ? | ? |
| 6 | 450 | 17.00 | 0.41 | 1.92 | 3.67 | 7.83 | 63.21 | 0.91 | 0.54 |
| 7 | 500 | 0.84 | 0.32 | 1.64 | 13.83 | 13.93 | 54.05 | 1.56 | 3.81 |
| 8 | 550 | 0.44 | 0.08 | 0.75 | 24.28 | 10.99 | 38.90 | 1.24 | 3.89 |
| 9 | 600 | 0.34 | 0.10 | 0.41 | 27.85 | 10.05 | 33.73 | 0.63 | 1.99 |
| Constant temperature 10min | 600 | 0.55 | 0.12 | 0.79 | 28.78 | 10.50 | 31.74 | 0.59 | 1.36 |
| Constant temperature 20min | 600 | 0.85 | 1.03 | 1.25 | 29.07 | 10.30 | 29.61 | 0.39 | 1.07 |
| Constant temperature 30min | 600 | 0.84 | 1.32 | 2.10 | 29.30 | 10.21 | 29.30 | 0.26 | 0.97 |
| Constant temperature 40min | 600 | 1.68 | 1.37 | 2.33 | 29.46 | 10.06 | 28.95 | 0.23 | 0.98 |
| Total gas | ? | 10.57 | 1.04 | 3.64 | 23.35 | 10.45 | 33.17 | 0.60 | 1.90 |
Can find out by table 2; On the basis of aluminium rice steamer; The condensation of gas recovery system carried out the nitrogen oxygen level in the gas composition reduces to some extent after the fluid-tight, nitrogen oxygen has certain deviation than comparing in the air, the possibility that can exhausted air gets into distillation system; In whole retort process, air only possibly be present in aluminium rice steamer device the inside.
Embodiment 3
Adopt a kind of dry distillation of coal gas of the present invention not have the retrieving arrangement of leakage and carry out the coal carbonization experiment.
Coal: Hulun Buir coal; Weight: 20.006g; Granularity＜3.2mm; Distillation system sweeping gas: helium; Temperature programming: the speed with 20 ℃/min is warming up to 260 ℃, then with the speed heating of 5 ℃/min, and whole warm 600 ℃ of constant temperature 40min.Dry distillation of coal gas gas chromatographic analysis result sees table 3.
The sweep gas of doing table 3 helium adopts device different temperature points dry distillation of coal gas component concentration according to the invention
| The gas production numbering | Temperature/℃ | He/% | O 2/% | N 2/% | CH 4/% | CO/% | CO 2/% | C 2H 4/% | C 2H 6/% |
| 1 | 100 | 96.70 | 0.24 | 1.01 | ? | ? | 0.12 | ? | ? |
| 2 | 200 | 95.53 | 0.13 | 0.50 | ? | ? | 0.08 | ? | ? |
| 3 | 300 | 94.72 | 0.41 | 1.61 | ? | ? | 0.15 | ? | ? |
| 4 | 350 | 95.39 | 0.23 | 0.82 | ? | 0.02 | 0.50 | ? | 0.02 |
| 5 | 400 | 92.80 | 0.14 | 0.88 | ? | 0.27 | 5.31 | ? | ? |
| 6 | 410 | 83.53 | 0.35 | 1.88 | ? | 0.62 | 6.89 | ? | ? |
| 7 | 420 | 65.57 | 0.25 | 1.27 | 0.64 | 2.26 | 18.17 | ? | ? |
| 8 | 430 | 30.93 | 0.23 | 1.19 | 3.08 | 6.53 | 56.50 | 0.51 | 0.47 |
| 9 | 440 | 22.31 | 0.15 | 0.82 | 4.14 | 7.81 | 56.08 | 0.50 | 0.39 |
| 10 | 450 | 15.78 | 0.46 | 2.04 | 5.20 | 8.76 | 56.26 | 0.51 | 0.63 |
| 11 | 500 | 0.89 | 0.03 | 0.34 | 13.99 | 13.00 | 51.32 | 1.83 | 4.26 |
| 12 | 550 | 0.22 | 0.12 | 0.54 | 22.91 | 8.89 | 34.51 | 1.20 | 3.98 |
| 13 | 600 | 0.16 | 0.03 | 0.20 | 28.87 | 9.39 | 28.68 | 0.40 | 1.28 |
| Constant temperature 10min | 600 | 0.14 | 0.13 | 0.58 | 26.89 | 11.98 | 25.69 | 0.30 | 0.73 |
| Constant temperature 20min | 600 | 0.17 | 0.39 | 1.85 | 30.29 | 11.07 | 23.41 | 0.17 | 0.53 |
| Constant temperature 30min | 600 | 0.25 | 0.08 | 0.49 | 30.37 | 11.20 | 21.93 | 0.19 | 0.61 |
| Constant temperature 40min | 600 | 0.33 | 0.23 | 1.12 | 31.13 | 11.55 | 22.15 | 0.17 | 0.47 |
| Total gas | ? | 6.47 | 0.29 | 0.93 | 24.01 | 10.05 | 29.79 | 0.64 | 1.75 |
Helium can accurately analyze each component concentration in the dry distillation of coal gas as the sweeping gas of distillation system.
Can find out that a kind of dry distillation of coal gas of the present invention does not have the leakage retrieving arrangement, has guaranteed the whole resistance to air loss of distillation system, reveal and get into distillation system and leak with dry distillation of coal gas and influence the accuracy of carbonizing gas composition and assay thereby solved extraneous air; Liquid seal device has guaranteed the resistance to air loss of whole distillation system, has realized that dry distillation of coal gas does not have the recovery of leakage; In pyrolysis gas bottom the gas purging structure is set, system cleans to the dry distillation of coal, adopts helium as sweeping gas, has guaranteed that destructive distillation gas is formed and the true and reliable property of assay value.
Claims (4)
1. a dry distillation of coal gas does not have the leakage retrieving arrangement, comprises a process furnace (3);
Horizontal in the said process furnace (3) have an outward extending pyrolyzer (4);
The inner termination of a said pyrolyzer (4) is communicated with gas purging pipe (17) and stretches out and be communicated with sweep gas inlet (18); External end head is by liquid seal trough (21) sealing, and intermediate connection has pyrolysis product delivery line (19);
Said pyrolysis product delivery line (19) extends downward in the gas-liquid separator (7) that is submerged in the condensate trap (6);
One termination of one gas sample tube (9) places gas-liquid separator (7) to stretch out, and another termination places gas-holder (11), and on gas sample tube (9), is provided with gas sampling mouth (10);
Be provided with whisking appliance (12) in the said gas-holder (11), and be linked with pressure equilibrium pipe (14), the other end of pressure equilibrium pipe (14) is communicated with pressurizer (15).
2. dry distillation of coal gas as claimed in claim 1 does not have the leakage retrieving arrangement, and the body of heater of said process furnace (3) is a rectangular configuration, and around it and bottom is provided with electric heater unit; Its central authorities are provided with thermopair (2).
3. one kind is used for the recovery method that the described dry distillation of coal gas of claim 1 does not have the leakage retrieving arrangement, and its said recovery method is the pyrolysis gas heating zone (16) that the coal grain is placed pyrolyzer (4) inner termination; Through gas purging pipe (17) pyrolyzer (4) is carried out gas purging, remove the gas in the pyrolyzer (4);
When sweeping gas concentration reaches 99% when above, begin to carry out coal carbonization;
After being warming up to 260 ℃ with the speed of 20 ℃/min, be heated to 600 ℃ with the speed of 5 ℃/min, constant temperature 40min is in real time to the sampling of destructive distillation gas and adopt gc to analyze;
After constant temperature finished, the gas that stirs in the gas-holder (11) mixed, and adopted gc that the total mixed gas of destructive distillation is analyzed, and measured the O in its destructive distillation gas
2, N
2, CH
4, CO, CO
2, C
2H
4And C
2H
6Content.
4. like claims 3 described recovery methods, described coal grain is＜3.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110221653 CN102304374B (en) | 2011-08-04 | 2011-08-04 | Leakage-free recovery device and recovery method of coal carbonization gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110221653 CN102304374B (en) | 2011-08-04 | 2011-08-04 | Leakage-free recovery device and recovery method of coal carbonization gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102304374A true CN102304374A (en) | 2012-01-04 |
| CN102304374B CN102304374B (en) | 2013-06-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110234992A (en) * | 2017-07-31 | 2019-09-13 | 株式会社Lg化学 | Device for the oxygen generated in quantitative analysis battery material |
| CN112088838A (en) * | 2020-09-29 | 2020-12-18 | 朱大强 | Turtle hatching system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962065A (en) * | 2006-10-27 | 2007-05-16 | 东北电力大学 | A low-temperature carbonization device using microwave |
| CN101658192A (en) * | 2009-09-23 | 2010-03-03 | 云南农业大学 | Application of eupatorium adenophorum vinegar liquid as plant nematocide |
| CN201660597U (en) * | 2010-04-15 | 2010-12-01 | 河南理工大学 | Fine coal pyrolyzing equipment |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962065A (en) * | 2006-10-27 | 2007-05-16 | 东北电力大学 | A low-temperature carbonization device using microwave |
| CN101658192A (en) * | 2009-09-23 | 2010-03-03 | 云南农业大学 | Application of eupatorium adenophorum vinegar liquid as plant nematocide |
| CN201660597U (en) * | 2010-04-15 | 2010-12-01 | 河南理工大学 | Fine coal pyrolyzing equipment |
Non-Patent Citations (1)
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| 郭小杰等: "现代煤气化制合成气得工艺", 《能源与节能》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110234992A (en) * | 2017-07-31 | 2019-09-13 | 株式会社Lg化学 | Device for the oxygen generated in quantitative analysis battery material |
| US11906492B2 (en) | 2017-07-31 | 2024-02-20 | Lg Energy Solution, Ltd. | Apparatus for quantitatively analyzing oxygen generated in battery material |
| CN112088838A (en) * | 2020-09-29 | 2020-12-18 | 朱大强 | Turtle hatching system |
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