CN109298015A - A kind of CO2It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment - Google Patents
A kind of CO2It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment Download PDFInfo
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- CN109298015A CN109298015A CN201811410013.0A CN201811410013A CN109298015A CN 109298015 A CN109298015 A CN 109298015A CN 201811410013 A CN201811410013 A CN 201811410013A CN 109298015 A CN109298015 A CN 109298015A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
- G01N25/26—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures using combustion with oxygen under pressure, e.g. in bomb calorimeter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/004—Specially adapted to detect a particular component for CO, CO2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/0047—Specially adapted to detect a particular component for organic compounds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/025—Gas chromatography
Abstract
The invention discloses a kind of CO2It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment, including injection enrichment CO2With O2Autoclave, the CO of gaseous mixture2Laser beam heats device, laser filter, smoke filter, air pump, gas tank and detecting instrument, autoclave bottom centre is equipped with ceramic disk, coal sample is placed in ceramic disk, setting one cylindrical open-top receptacle above ceramic disk, is equipped with CO above autoclave2Laser beam heats device, the device lower part are equipped with laser filter, and laser enters in autoclave after filtering.The quick heating to coal sample can be realized within a very short time using the device, so that the temperature of coal sample is quickly risen to target temperature, shortens the heating-up time, avoided the slow oxidizing fire of coal, improved coal gasification efficiency.The experimental provision can be tested at atmospheric pressure or elevated pressure simultaneously, to study the gasification efficiency of coal under different condition.
Description
Technical field
The present invention relates to a kind of CO2It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment, is belonged to
Integrated coal gasification combined cycle technical field.
Background technique
According to international energy data statistics, China possesses coal resources abundant, can adopt coal reserves and occupy third place in the world,
And in CO2 emissions, China accounts for about the 19% of the whole world, and the CO2 emissions that wherein coal thermal power generation generates account for
30% or so of Chinese total emission volumn.International Energy Agency proposes that coal should be in effective carbon as continuing with for long-term fuel
Management is lower by the way of clean and effective.For the generation technology being concerned, improving energy efficiency is carbon dioxide discharge-reduction
One of leverage.The scientific and technological advanced technology of current coal fired power generation is faced with both sides technological challenge: the higher thermal efficiency
With carbon capture technology.Recently, oxygen fuel (oxy-fuel) combustion technology obtains in the development of collecting carbonic anhydride and low emission
Great breakthrough.Gasification combined-cycle (IGCC) generation technology combination carbon capture and to seal up for safekeeping be considered as the following thermal power generation
One of optimal selection of factory.Coal gasification is the technology having been established for, and gasification of the coal in conjunction with oxygen is a kind of heat release
It reacts and generates by carbon monoxide (CO), hydrogen (H2), hydrocarbon (HCs) composition imflammable gas and carbon dioxide
(CO2).Further, gas is combined with the high temperature and high pressure gas that the burning of the air or oxygen of compression generates by fuel gas in combustion furnace
Body steam turbine power generation is to obtain the thermal efficiency more higher than current Coal-fired power plant.In general, the high-temperature gasification of coal
It is an extremely complex process, gasification chemical reaction is by coal rank, gasification maximum temperature, heating rate, reaction time, gas
The influence of the factors such as body environment, gas pressure intensity.
In general, the pyrolysis time of coal is largely dependent upon heating rate, in other words, the pyrolysis time of coal is with heating
The raising of rate and reduce.Also, the gasification reaction intensity of coal and charcoal is in CO2/O2Or with heating speed in the gaseous environment of air
The raising of rate and increase.CO has inquired into using TG-DT A spectrum instrument in previous seminar2The O of concentration and enhancing2Specific gravity is to coal gasification
With the influence of combustion reaction activity and gaseous product.Experimental result is shown when heating rate has been more than 40 °C of min-1When, coal turns
Change the completion mainly in the form of coal gasification rather than coal combustion.But TG-DTA analysis instrument is limited to the heating speed of coal heating
Rate is (maximum: 50 °C of min-1) it is with a °C min-1Rather than °C s-1Heating.In this way, TG-DTA analysis instrument is usually wanted
Spend dozens of minutes or longer time reach the gasification temperature range 1200 of the industrial gasification furnace with intense radiant heat ~
1500°C.Therefore, the heating-up time long before arrival gasification temperature certainly will promote the slow oxidizing fire of coal because low heating is fast
Rate.
In the past few decades, with the raising of pressure, pyrolysis, burning and the gasification property of coal be extensively studied with
It inquires into.Coal gasification reactivity enhances as the pressure of system increases, under normal circumstances, industrial IGCC Coal Gasification Technology
Pressure uses 1.5 ~ 2.5 MPa, and the high-pressure gasified of coal can not only effectively improve gasification reaction intensity and the thermal efficiency, more substantially reduce
CO2Discharge.In general, there are three types of situations for the effect of pressure: the partial pressure of fixed a certain reaction gas, fixed a certain reaction gas rub
Change a certain reaction gas partial pressure in the case of that score and fixed stagnation pressure.Researchers use the hot weight-differential heat for being pressurized to 5MPa
Analyzer has inquired into the activity that pressure reacts charcoal, and still, its heating rate is only 10 °C of min-1.Researcher is simulating
Air (O2/N2, O2: 3 ~ 21%) and oxy-fuel (O2/CO2, O2: beam tube combustion furnace 5 ~ 30%) is respectively adopted under atmospheric pressure environment
At a temperature of 1400 °C and TG-DTA analysis instrument has studied coal combustion and gasification reactivity at a temperature of 1200 °C.Even if
O2Concentration be controlled very low, but Carbon/Oxygen molecular proportion still be able under the conditions of slow heating complete coal oxygen
Change burning.Therefore, pressure is understood to coal gasification and combustion reactivity and CO, H2And CH4The influence pair of the product of equal synthesis gas
The development of following IGCC technology is extremely important.
Previously, many researchers analyzed pressure and heating under high or low heating rate and normal pressure or condition of high voltage
Influence of the rate to coal chemistry reactivity, but the system that previous most of tests seldom use the high heating rate of high pressure simultaneously
Condition because the equipment in laboratory be it is relatively difficult reach industrial requirement, to obtain expected condition simultaneously.Moreover, coal
The relationship that gasification reactivity and synthesis gas generate seldom carries out analysis of experiments research on the basis of IGCC fundamental characteristics.Separately
Outside, a large number of researchers have delivered O under normal pressure2/N2And O2/CO2The chemical characteristic of coal and comparison are tied under gas with various environment
Fruit.Under normal pressure, coal combustion temperature is because gaseous environment is by 21%O2/79%CO2Replace air (21%O2/79%N2) and reduce.In general,
In order to match the Temperature Distribution of coal-air burning, O2/CO2O in mixed gas2Concentration must be 30% or higher.However,
Even if in identical O2(5%, 10%, 21-35%), CO under concentration conditions2Replace N2So that coal conversion ratio reduces, but increase
The yield of the synthesis gas such as CO and HCs.In other words, compared to O2/N2Gaseous environment, O2/CO2Gaseous environment increases unit matter
Measure the synthesis gas yield of coal.
In addition to this, researcher has also inquired into the effect of following three kinds of pressure: (1) atmospheric air on the basis of, O2Molecule is permanent
It is fixed；(2) Air/CO2Molecular proportion constant, i.e. P under conditions of total gas pressure is fixedO2/P=3.3%；(3) by changing Air and CO2
Partial pressure maintains total gas pressure constant, i.e. P=Pair+PCO2It is constant.Particularly, pressure is investigated to the gas of coal, charcoal and charcoal aqueous mixtures
Change and combustion reaction activity；CO, H during instant heating2And CH4The yield of equal synthesis gas；The CO of injection2In coal gasification and combustion
The ratio of reaction is participated in during burning；The shadow of conversion ratio this several respects key technology of coal and charcoal after the completion of instant heating
It rings.
Therefore, based on the development of IGCC technology, O is used in high-pressure system2/CO2Replace O2/N2Feasibility analysis right and wrong
It is often necessary.In consideration of it, needing to analyze and research and comparison CO2And N2Under gas with various high ambient temperature condition of high voltage, coal gasification and combustion
Burn the generation of reactivity and synthesis gas；And inquire into the CO that coal gasification is participated in injection gasification furnace2The CO being converted into coal2Than
Rate, to further confirm that CO in fuel combination gas2With O2Importance during high temperature and pressure coal gasification and combustion, so as to
Development for following IGCC technology provides reliable data foundation.
Summary of the invention
The present invention is intended to provide a kind of CO2It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment,
The device can quickly heat coal sample, reach it can in a relatively short period of time within the 10s even shorter time
Target temperature improves coal gasification efficiency to avoid the slow oxidizing fire of coal.
The present invention provides a kind of CO2It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment, packet
Include injection enrichment CO2With O2Autoclave, the CO of gaseous mixture2Laser beam heats device, laser filter, smoke filter, sky
Air pump, gas tank and detecting instrument, the detecting instrument include pressure gauge, O2Monitor, CO analyzer, synthesis gas detector；
Gas tank is attached by pressure valve and three-way interface with the air inlet pipeline in experimental provision, is provided on air inlet pipeline
First air pressure valve, pressure gauge, then connection injection are enriched with CO2With O2The autoclave of gaseous mixture, the pressure gauge on air inlet pipeline
The registration of display is injection enrichment CO2With O2Pressure in the autoclave of gaseous mixture；
Autoclave bottom centre is equipped with ceramic disk, and coal sample is placed in ceramic disk, setting one above ceramic disk
Cylindrical open-top receptacle, autoclave top are equipped with CO2Laser beam heats device, the device lower part are equipped with laser filter,
Laser enters in autoclave after filtering；
Injection enrichment CO2With O2The autoclave of gaseous mixture is attached by the second air pressure valve with outlet pipe；Second gas
Pressure valve is attached with smoke filter；
It is equipped with collection airbag between second air pressure valve and smoke filter, is respectively equipped with third air pressure valve and the in the two sides of collection airbag
Four air pressure valves, the collection airbag are used for the collecting and sampling of reaction gas under high pressure；Smoke filter is sequentially connected O2Monitor, CO point
Analyzer, synthesis gas detector；An air pump is equipped between CO analyzer and synthesis gas detector, air pump makes entirely to test
Gas in device is constantly recycled.
In above-mentioned apparatus, CO is enriched in injection2With O2In the autoclave of gaseous mixture, radiation thermal conduction is by containing
What the black matrix of isothermal gas was completed, it is calculated according to Stefan-Boltzmann law, radiant heat flux is 5.7 × 105~11.9 ×
105W·m-2。
In above-mentioned apparatus, injection enrichment CO2With O2The autoclave of gaseous mixture is a fixed type cylindrical shaped reaction kettle,
A height of 83mm, inside diameter 48mm.
In above-mentioned apparatus, injection enrichment CO2With O2The autoclave top of gaseous mixture is equipped with a laser filter, institute
The filter used is selenizing zinc metal sheet, diameter 6mm, in order to CO2Laser beam passes through.The laser filter is placed on reaction kettle
It is interior.
Second air pressure valve is attached by outlet pipe and smoke filter, is carried out to the gas after reaction
Filter, removes some impurity.
In above-mentioned apparatus, the smoke filter and O2Monitor is attached, to monitor the oxygen concentration in synthesis gas.
The O2Monitor is attached with CO analyzer, and CO analyzer analyzes the CO gas in synthesis gas.The CO analysis
Instrument is attached with synthesis gas detector, and synthesis gas detector is for measuring CH4Concentration.
In above-mentioned apparatus, when the gas flow in entire experimental provision is stablized, pressure valve is closed, stops injection enrichment
CO2With O2Gaseous mixture.
In above-mentioned apparatus, the glass plate is zinc selenide glass plate；Laser filter is that the zinc selenide that diameter is 6mm is saturating
Mirror, injection enrichment CO2With O2The autoclave bottom of gaseous mixture be equipped with ceramic disk, outside be equipped with reaction kettle cylinder sleeve, upper bottom and
Bottom is equipped with metal firmware.
In above-mentioned apparatus, when experiment condition is under high pressure and the two different situations of normal pressure, the opening and closing of each air pressure valve
Situation is different, and needs to collect the gas after reaction using collection airbag under high-pressure situations, and does not need in the case of normal pressure using collection
Airbag；Furthermore high pressure is different with the gas analysis instrument in the case of normal pressure, and the analysis instrument under high-pressure situations is gas chromatograph,
And the reaction gas of normal pressure situation is filtered by smoke filter first, then passes through O2Monitor is to monitor O2Concentration
Variation.It is then passed through CO analyzer and carries out CO gas analysis.Using the effect of air pump, reaction gas is made to enter synthesis gas inspection
Instrument is surveyed to detect CH4Generation and concentration variation.
Beneficial effects of the present invention:
The quick heating to coal sample can be realized within a very short time using apparatus of the present invention, increase quickly the temperature of coal sample
To target temperature, the heating-up time is shortened, the slow oxidizing fire of coal is avoided, improves coal gasification efficiency.The reality simultaneously
Experiment device can not only be tested under normal pressure, can also create the experimental situation of a high pressure, to study under different condition
The gasification efficiency of coal.
Detailed description of the invention
Fig. 1 is a kind of CO of the present invention2It is enriched with the knot of the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment
Structure schematic diagram.
Fig. 2 is injection enrichment CO in the present invention2With O2The schematic diagram of the autoclave of gaseous mixture.
Wherein: 1 --- gas tank；2 --- pressure valve；3 --- three-way interface；4 --- the first air pressure valve；5 --- pressure gauge；
6 --- coal sample；7——CO2Laser beam heats device；8 --- laser filter；9 --- injection enrichment CO2With O2Gaseous mixture
Autoclave；10 --- the second air pressure valve；11 --- third air pressure valve；12 --- the 4th air pressure valve；13 --- cylinder is spacious
Mouth container；14 --- ceramic disk；15 --- collection airbag；16 --- smoke filter；17——O2Monitor；18 --- CO points
Analyzer；19 --- air pump；20 --- synthesis gas detector；21 --- glass plate；22 --- metal firmware；23 --- reaction kettle
Cylinder sleeve.
Specific embodiment
The present invention is further illustrated below by embodiment, but is not limited to following embodiment.
Embodiment 1:
As shown in Figure 1, a kind of CO2It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment, including injection
It is enriched with CO2With O2Autoclave 9, the CO of gaseous mixture2Laser beam heats device 7, laser filter 8, smoke filter 16, sky
Air pump 19, gas tank 1 and detecting instrument, the detecting instrument include pressure gauge 5, O2Monitor 17, CO analyzer 18, synthesis gas
Detector 20；
Gas tank 1 is attached by pressure valve 2 and three-way interface 3 with the air inlet pipeline in experimental provision, is set on air inlet pipeline
It is equipped with the first air pressure valve 4, pressure gauge 5, then connection injection enrichment CO2With O2The autoclave 9 of gaseous mixture, on air inlet pipeline
Pressure gauge 5 show registration be injection enrichment CO2With O2Pressure in the autoclave 9 of gaseous mixture；
Autoclave bottom centre is equipped with ceramic disk 14, and coal sample 6 is placed in ceramic disk 14, sets above ceramic disk 14
A cylindrical open-top receptacle 13 is set, is equipped with CO above autoclave2Laser beam heats device 7, which, which is equipped with, swashs
Light-filter 8, laser enters in autoclave after filtering；
Injection enrichment CO2With O2The autoclave 9 of gaseous mixture is attached by the second air pressure valve 10 with outlet pipe；Second
Air pressure valve 10 is attached with smoke filter 16；
It is equipped with collection airbag 15 between second air pressure valve 10 and smoke filter 16, is respectively equipped with third gas in the two sides of collection airbag 15
Pressure valve 11 and the 4th air pressure valve 12, the collection airbag 15 are used for the collecting and sampling of reaction gas under high pressure；Smoke filter 16 is successively
Connect O2Monitor 17, CO analyzer 18, synthesis gas detector 20；It is equipped between CO analyzer 18 and synthesis gas detector 20
One air pump 19, air pump 19 recycle the gas in entire experimental provision constantly.
In above-mentioned apparatus, CO is enriched in injection2With O2In the autoclave 9 of gaseous mixture, radiation thermal conduction is by containing
What the black matrix of isothermal gas was completed, it is calculated according to Stefan-Boltzmann law, radiant heat flux is 5.7 × 105~11.9 ×
105W·m-2。
In above-mentioned apparatus, injection enrichment CO2With O2The autoclave 9 of gaseous mixture is a fixed type cylindrical shaped reaction kettle,
A height of 83mm, inside diameter 48mm.
In above-mentioned apparatus, injection enrichment CO2With O29 top of autoclave of gaseous mixture is equipped with a laser filter 8,
Used filter is selenizing zinc metal sheet, diameter 6mm, in order to CO2Laser beam passes through.The laser filter 8 is placed on instead
It answers in kettle.
Second air pressure valve 10 is attached by outlet pipe with smoke filter 16, is carried out to the gas after reaction
Filtering, removes some impurity.
In above-mentioned apparatus, the smoke filter 16 and O2Monitor 17 is attached, to monitor the oxygen in synthesis gas
Concentration.The O2Monitor 17 and CO analyzer 18 is attached, and CO analyzer 18 analyzes the CO gas in synthesis gas.
The CO analyzer 18 is attached with synthesis gas detector 20, and synthesis gas detector 20 is for measuring CH4Concentration.
In above-mentioned apparatus, when the gas flow in entire experimental provision is stablized, pressure valve is closed, stops injection enrichment
CO2With O2Gaseous mixture.
As shown in Fig. 2, the glass plate 21 is zinc selenide glass plate；Laser filter 22 is the zinc selenide that diameter is 6mm
Lens, injection enrichment CO2With O29 bottom of autoclave of gaseous mixture is equipped with ceramic disk 14, and outside is equipped with reaction kettle cylinder sleeve
24, upper bottom and bottom are equipped with metal firmware 23.
In above-mentioned apparatus, when experiment condition is under high pressure and the two different situations of normal pressure, the opening and closing of each air pressure valve
Situation is different, and needs to collect the gas after reaction using collection airbag under high-pressure situations, and does not need in the case of normal pressure using collection
Airbag；Furthermore high pressure is different with the gas analysis instrument in the case of normal pressure, and the analysis instrument under high-pressure situations is gas chromatograph,
And the reaction gas of normal pressure situation is filtered by smoke filter first, then passes through O2Monitor is to monitor O2Concentration
Variation.It is then passed through CO analyzer and carries out CO gas analysis.Using the effect of air pump, reaction gas is made to enter synthesis gas inspection
Instrument is surveyed to detect CH4Generation and concentration variation.
Experimental provision provided by the invention, specific steps are as follows:
(1) coal sample 6 required for preparation is tested, is ready for testing.
(2) according to experiment needs, pressure value is preset, the flow for being passed through gas is controlled by pressure.
(3) it is put into experiment coal sample 6,1 valve of gas tank is opened, starts to ventilate.
(4) CO is used2Laser beam heats device 7 carries out instant heating to coal sample 6, increase within a very short time coal sample
To target temperature, coal sample 6 starts gasification, and combustion after reaching target temperature, generates reaction gas.
(5) when experiment condition is high-pressure situations, the second air pressure valve 10 should be first shut off before being passed through gas, with wound
Make the hyperbaric environment in reaction vessel.After the completion of experiment, the 4th air pressure valve 12 is closed, opens the second air pressure valve 10 and third gas
Pressure valve 11, the gas after making reaction enters in collection airbag 15, to be sampled analysis to gas.Under high-pressure situations, adopted
Analysis instrument is gas chromatograph.
(6) when experiment condition is normal pressure situation, third air pressure valve 11 and the 4th should be first shut off before being passed through gas
Air pressure valve 12, keeps the first air pressure valve 4 and the second air pressure valve 10 always in the state opened, and it is on the shelf to collect airbag 15 at this time.
After the completion of experiment, reaction gas passes through smoke filter 16 first and is filtered, and then passes through O2Monitor 17, to monitor O2It is dense
The variation of degree.It is then passed through CO analyzer 18, carries out CO gas analysis.Using the effect of air pump 19, make reaction gas into
Enter synthesis gas detector 20, predominantly detects CH4Generation and concentration variation.
(7) relevant experimental data is analyzed, it was therefore concluded that.
The foregoing is merely preferred embodiments of the invention, technology contents and technical characterstic are had revealed that as above, but are familiar with
The professional person of the technology is still potentially based on disclosed content and makes different modifications, replacement and improvement,
Therefore protection scope of the present invention is not limited to the revealed technology contents of case study on implementation, therefore all shapes according to the present invention, construction
And the equivalence changes that principle is done are included within the scope of protection of the present invention.
Claims (7)
1. a kind of CO2It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment, it is characterised in that: including note
Enter to be enriched with CO2With O2Autoclave, the CO of gaseous mixture2Laser beam heats device, laser filter, smoke filter, air
Pump, gas tank and detecting instrument, the detecting instrument include pressure gauge, O2Monitor, CO analyzer, synthesis gas detector；
Gas tank is attached by pressure valve and three-way interface with the air inlet pipeline in experimental provision, is provided on air inlet pipeline
First air pressure valve, pressure gauge, then connection injection are enriched with CO2With O2The autoclave of gaseous mixture, the pressure gauge on air inlet pipeline
The registration of display is injection enrichment CO2With O2Pressure in the autoclave of gaseous mixture；
Autoclave bottom centre is equipped with ceramic disk, and coal sample is placed in ceramic disk, setting one above ceramic disk
Cylindrical open-top receptacle, autoclave top are equipped with CO2Laser beam heats device, the device lower part are equipped with laser filter,
Laser enters in autoclave after filtering；
Injection enrichment CO2With O2The autoclave of gaseous mixture is attached by the second air pressure valve with outlet pipe；Second air pressure
Valve is attached with smoke filter；
It is equipped with collection airbag between second air pressure valve and smoke filter, is respectively equipped with third air pressure valve and the in the two sides of collection airbag
Four air pressure valves, the collection airbag are used for the collecting and sampling of reaction gas under high pressure；Smoke filter is sequentially connected O2Monitor, CO point
Analyzer, synthesis gas detector；An air pump is equipped between CO analyzer and synthesis gas detector, air pump makes entirely to test
Gas in device is constantly recycled.
2. CO according to claim 12It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment,
It is characterized in that: being enriched with CO in injection2With O2In the autoclave of gaseous mixture, radiation thermal conduction is by containing isothermal gas
What black matrix was completed, it is calculated according to Stefan-Boltzmann law, radiant heat flux is 5.7 × 105~11.9 × 105W·m-2。
3. CO according to claim 12It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment,
It is characterized in that: injection enrichment CO2With O2The autoclave of gaseous mixture is a fixed type cylindrical shaped reaction kettle, and a height of 83mm is interior
Portion's diameter is 48mm.
4. CO according to claim 12It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment,
It is characterized in that: injection enrichment CO2With O2The autoclave top of gaseous mixture is equipped with a laser filter, used filtering
Piece is selenizing zinc metal sheet, diameter 6mm, in order to CO2Laser beam passes through.
5. CO according to claim 12It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment,
It is characterized in that: the smoke filter and O2Monitor is attached, to monitor the oxygen concentration in synthesis gas；The O2Monitoring
Instrument is attached with CO analyzer, and CO analyzer analyzes the CO gas in synthesis gas；The CO analyzer and synthesis gas
Detector is attached, and synthesis gas detector is for measuring CH4Concentration.
6. CO according to claim 12It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment,
It is characterized in that: when the gas flow in entire experimental provision is stablized, closing pressure valve, stop injection enrichment CO2With O2Mixing
Gas.
7. CO according to claim 12It is enriched with the experimental provision of the coal instant heating gasification, and combustion under hyperbaric environment,
Be characterized in that: the glass plate is zinc selenide glass plate；Laser filter is the zinc selenide lens that diameter is 6mm, injection enrichment
CO2With O2The autoclave bottom of gaseous mixture is equipped with ceramic disk, and outside is equipped with reaction kettle cylinder sleeve, and upper bottom and bottom are equipped with gold
Belong to firmware.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811410013.0A CN109298015B (en) | 2018-11-23 | 2018-11-23 | Experimental device for coal rapid heating gasification combustion under high pressure environment |
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| CN201811410013.0A CN109298015B (en) | 2018-11-23 | 2018-11-23 | Experimental device for coal rapid heating gasification combustion under high pressure environment |
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| CN109298015A true CN109298015A (en) | 2019-02-01 |
| CN109298015B CN109298015B (en) | 2020-11-27 |
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| CN112556967A (en) * | 2020-12-30 | 2021-03-26 | 太原理工大学 | Gas-solid two-phase migration simulation test device for pipe network with complex structure |
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