CN106590805A - Coal desulfurization technology - Google Patents

Coal desulfurization technology Download PDF

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Publication number
CN106590805A
CN106590805A CN201611210308.4A CN201611210308A CN106590805A CN 106590805 A CN106590805 A CN 106590805A CN 201611210308 A CN201611210308 A CN 201611210308A CN 106590805 A CN106590805 A CN 106590805A
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CN
China
Prior art keywords
coal
biomass
pyrolysis oven
pyrolysis
gas
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CN201611210308.4A
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Chinese (zh)
Inventor
高松平
秦育红
李静
程雪松
孔祥鹏
牛宇岚
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Taiyuan University of Technology
Taiyuan Institute of Technology
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Taiyuan University of Technology
Taiyuan Institute of Technology
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Priority to CN201611210308.4A priority Critical patent/CN106590805A/en
Publication of CN106590805A publication Critical patent/CN106590805A/en
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L9/00Treating solid fuels to improve their combustion
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L9/00Treating solid fuels to improve their combustion
    • C10L9/08Treating solid fuels to improve their combustion by heat treatments, e.g. calcining
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/02Combustion or pyrolysis
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/04Gasification

Abstract

The invention belongs to the technical field of coal desulfurization, and provides a coal desulfurization technology. According to the coal desulfurization technology, biomass is added in the coal for co-pyrolysis between the biomass and the coal. The method of the coal desulfurization technology comprises the steps of S1, selecting a material; S2, smashing; S3, exhausting; S4, increasing temperature; S5, reacting; S6, cooling; S7, collecting. The added biomass makes the precipitation of H2S and COS advance. The biomass is beneficial to removal of sulfur and nitrogen in the coal pyrolysis process, can stop cohering among particles in the pyrolysis process of the strong cohesive coal, and promote sufficient pyrolysis and desulfurization of the coal. The addition of the biomass increases desulfurization degree and obtains high heat value semicoke, and rich alkali metal contained in the biomass can generate catalytic action in the gasification process so that remarkable reduction of gasification reaction activation energy of pyrolysis char can be caused. On one hand, the gasification reaction of the pyrolysis char is obviously higher than reactivity of coal char, on the other hand, the efficiency of the coal desulfurization is effectively improved, and the influence of the coal pyrolysis gasification process on the environment is reduced.

Description

A kind of coal desulfurization technique
Technical field
The present invention relates to Desulphurization Technology for Coal field, specially a kind of coal desulfurization technique.
Background technology
The energy resource structure feature of China's few gas rich in coal and poor in oil determines that the production of energy based on coal and consumptio are long-term Will not change.But long-term extensive exploitation and poorly efficient utilization, not only waste of resource, and serious environment pollution.Wherein, sulphur is dirty Dye one just can form " acid rain " while severe corrosion equipment.The latter causes forest decay, the ecosystem on a large scale The one of the main reasons of destruction, the agriculture underproduction, building corrosion and many diseases.But from from the perspective of coal resources, sulfur-bearing Sulphur coal of the amount more than 2% accounts for 30% or so of coal resources proved reserves, occupies critical role.Therefore sulphur in coal is understood Sulphur removing sulfuldioxide in the effective coal of occurrence patterns, exploiting economy, the quality to improving coal, realizing the efficient clean utilization of coal has Very important realistic meaning.
The removing of sulphur in coal is always the important topic of coal chemistry research, and many methods have been used to the removing of sulphur in coal. Wherein, as coal clean and effective using important composition portion in one of effective means and the coal process such as gasification, burning and liquefaction Point pyrolysis, cause the extensive concern of people because it has certain desulfidation.In pyrolytic process, inorganic sulfur and part have Machine sulphur can be with the easy H for recycling2The form of S enters gas phase, and then is effectively removed.However, in more gentle heat Under the conditions of solution, pyrolysis of coal desulfuration efficiency is relatively low, has some scholars to enter with biomass copyrolysis behavior to coal both at home and abroad at present Go compared with system research, the burnt gasification activity of the transition behavior and copyrolysis to sulphur during copyrolysis has been also carried out tentatively examining Examine.The content of sulphur and the survey of composition in the gas-solid-liquid three-phase product that result of study focuses mostly on after to coal and biomass copyrolysis Examination, catalysis of the alkali metal to the burnt gasification reaction of copyrolysis in the impact and biomass after analysis addition biomass to sulphur transition Effect.
The content of the invention
It is an object of the invention to provide a kind of coal desulfurization technique, to solve the problems, such as above-mentioned background technology in propose.
For achieving the above object, the present invention provides following technical scheme:A kind of coal desulfurization technique, it is characterised in that:Should The method and step of coal desulfurization technique is as follows:
S1:Sorting:The appropriate coal that selection needs desulfurization and the biomass for reacting;
S2:Crush:The coal chosen is carried out into crushing operation by reducing mechanism, coal particles are obtained, taken and crush Coal particles and corresponding quantitative biomass be put in the charging aperture on pyrolysis oven, be sent to by feed mechanism In apparatus for placing in pyrolysis furnace chamber;
S3:Exhaust:After the apparatus for placing of coal particles and biomass is stable, inert gas tank is opened, in pyrolysis oven Inert gas 30min is passed through, the air in pyrolysis furnace chamber is discharged;
S4:Heat up:After air is discharged, start electric heater unit, warming temperature is carried out to pyrolysis oven, 400 are warmed up to respectively DEG C, 500 DEG C and 600 DEG C, when temperature reaches set value, open reaction gas tank, reaction gas and steady is passed through in pyrolysis oven Determine 30min;
S5:Reaction:Apparatus for placing in pyrolysis oven is rapidly feeding into the thermal treatment zone of pyrolysis oven cause coal particles and Biomass carry out pyrolytic reaction, while Jing gasifying agent vapor pipes are passed through vapor in pyrolysis oven, vapor is filled with electrical heating While putting cooperation regulation pyrolysis oven pyrolysis temperature, the efficiency of pyrolytic reaction is improved, in the steam Jing pyrolysis ovens in simultaneous reactions The layer of sand that filters of top of chamber is discharged from the top of pyrolysis oven, sequentially enters dust absorbing device, exhaust gas absorption device and blowing Device, is again fed to heat energy in gasifying agent vapor pipe by blowing device, while realizing the recycling of heat, goes Except dust and waste gas in pyrolysis course of reaction;
S6:Cooling:Close electric heater unit, gasifying agent vapor pipe, dust absorbing device, useless after the completion of question response successively Aspiration receiving apparatus and blowing device, are passed through inert gas in pyrolysis oven again so that coal particles and biomass hold dress Put and be cooled in the environment of inert gas room temperature;
S7:Collect:The gas Jing gas vents produced after reaction neutralization reaction are drained in gas filtration groove, are finally received Collect and environmental protection treatment treated in gas collection bag, and the solid residue after cooling down in step S6 is preserved and backed up analysis use, To the content and form that detect the sulphur of residual.
Preferably, hoisting mechanism is provided with the inner chamber of the pyrolysis oven in step S2, and the bottom peace of hoisting mechanism Equipped with the quartzy apparatus for placing for holding coal particles and biomass.
Preferably, the biomass composition and property is C/H and C/O compounds, and biomass are included rich in alkali (alkaline earth) Metal oxide and rich in nonmetal oxide.
Preferably, load in the reaction gas tank for CO, CO2、CH4Or H2Gas.
Preferably, one end of the gasifying agent vapor pipe extends to the inner chamber of pyrolysis oven, and gasifying agent vapor pipe is stretched Enter the end being pyrolyzed in furnace chamber and taper steam shower nozzle is installed.
Compared with prior art, the invention has the beneficial effects as follows:The coal desulfurization technique is by adding life in coal Material copyrolysis therewith, sequentially pass through sorting, crushing, exhaust, intensification, reaction, cooling and the step such as collect carrying out to coal Desulfurization.The biomass of addition make H in coal2The precipitation of S and COS shifts to an earlier date.Biomass are the materials rich in H, and pyrolysis can generate more H2, be conducive to the removing of sulphur and nitrogen during pyrolysis of coal, and biomass can prevent particle in heavy caking coal pyrolytic process Between bonding, promote coal and be fully pyrolyzed.The addition of biomass improves desulfurization degree and obtains high heating value semicoke, biomass In can produce catalytic action to coal gasification course containing more rich alkali metal, cause to be pyrolyzed burnt gasification reaction activation energy notable Reduce, on the one hand, on the other hand its gasification activity, effectively raises coal desulfurization apparently higher than the reactivity of coal tar Efficiency, reduces impact of the coal pyrolysis gasification to environment.
Description of the drawings
Fig. 1 is present invention process flow chart;
Fig. 2 is present configuration principle schematic.
In figure:1 coal particles, 2 biomass, 3 pyrolysis ovens, 4 charging apertures, 5 inert gas tanks, 6 reaction gas tanks, 7 gasifying agents Layer of sand, 9 dust absorbing devices, 10 blowing devices, 11 exhaust gas absorption devices, 12 gas filtration grooves, 13 gas are filtered in vapor pipe, 8 Body collecting bag, 14 electric heater units, 15 gas vents.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Fig. 1-2 is referred to, the present invention provides a kind of technical scheme:
Embodiment 1
A kind of coal desulfurization technique, it is characterised in that:The method and step of the coal desulfurization technique is as follows:
S1:Sorting:The appropriate coal that selection needs desulfurization and the biomass 2 for reacting, the composition and property of the biomass 2 Include rich in alkali (alkaline earth) metal oxide and rich in nonmetal oxide for C/H and C/O compounds, and biomass;
S2:Crush:The coal chosen is carried out into crushing operation by reducing mechanism, coal particles 1 are obtained, taken and crush Coal particles 1 and corresponding quantitative biomass 2 be put in the charging aperture 4 on pyrolysis oven 3, sent by feed mechanism Enter in the apparatus for placing in the inner chamber of pyrolysis oven 3, hoisting mechanism, and the bottom of hoisting mechanism are provided with the inner chamber of pyrolysis oven 3 The quartzy apparatus for placing for holding coal particles 1 and biomass 2 is installed;
S3:Exhaust:After the apparatus for placing of coal particles 1 and biomass 2 is stable, inert gas tank 5 is opened, to pyrolysis oven Inert gas 30min is passed through in 3, the air in the inner chamber of pyrolysis oven 3 is discharged;
S4:Heat up:After air is discharged, start electric heater unit 14, warming temperature is carried out to pyrolysis oven 3, heating rate is 10 DEG C/min, 400 DEG C are warmed up to, when temperature reaches set value, open reaction gas tank 6, in pyrolysis oven 3 reaction is passed through Gas and stably 30min, state load in reaction gas tank 6 for CO, CO2、CH4Or H2Gas;
S5:Reaction:Apparatus for placing in pyrolysis oven 3 is rapidly feeding the thermal treatment zone of pyrolysis oven 3 to cause coal particles 1 and biomass 2 carry out pyrolytic reaction, while Jing gasifying agent vapor pipe 7 is passed through vapor in pyrolysis oven 3, vapor and electricity While heater 14 coordinates regulation 3 pyrolysis temperature of pyrolysis oven, the efficiency of pyrolytic reaction, the steam Jing in simultaneous reactions are improved The layer of sand 8 that filters of the inner cavity top of pyrolysis oven 3 is discharged from the top of pyrolysis oven 3, sequentially enters the suction of dust absorbing device 9, waste gas Receiving apparatus 11 and blowing device 10, are again fed to heat energy in gasifying agent vapor pipe 7 by blowing device 10, the gas One end of agent vapor pipe 7 extends to the inner chamber of pyrolysis oven 3, and gasifying agent vapor pipe 7 stretches into the end in the inner chamber of pyrolysis oven 3 Portion is provided with taper steam jet, while realizing the recycling of heat, removes the dust and waste gas during pyrolytic reaction;
S6:Cooling:Close electric heater unit 14, gasifying agent vapor pipe 7, dust absorbing device after the completion of question response successively 9th, exhaust gas absorption device 11 and blowing device 10, are passed through inert gas in pyrolysis oven 3 again so that coal particles 1 and biology The apparatus for placing of matter 2 is cooled to room temperature in the environment of inert gas;
S7:Collect:The gas Jing gas vents 15 produced after reaction neutralization reaction are drained in gas filtration groove 12, most After collect environmental protection treatment treated in gas collection bag 13, and the solid residue after cooling down in step S6 is preserved and backed up Analysis is used, to the content and form that detect the sulphur of residual.
Embodiment 2
A kind of coal desulfurization technique, it is characterised in that:The method and step of the coal desulfurization technique is as follows:
S1:Sorting:The appropriate coal that selection needs desulfurization and the biomass 2 for reacting, the composition and property of the biomass 2 Include rich in alkali (alkaline earth) metal oxide and rich in nonmetal oxide for C/H and C/O compounds, and biomass;
S2:Crush:The coal chosen is carried out into crushing operation by reducing mechanism, coal particles 1 are obtained, taken and crush Coal particles 1 and corresponding quantitative biomass 2 be put in the charging aperture 4 on pyrolysis oven 3, sent by feed mechanism Enter in the apparatus for placing in the inner chamber of pyrolysis oven 3, hoisting mechanism, and the bottom of hoisting mechanism are provided with the inner chamber of pyrolysis oven 3 The quartzy apparatus for placing for holding coal particles 1 and biomass 2 is installed;
S3:Exhaust:After the apparatus for placing of coal particles 1 and biomass 2 is stable, inert gas tank 5 is opened, to pyrolysis oven Inert gas 30min is passed through in 3, the air in the inner chamber of pyrolysis oven 3 is discharged;
S4:Heat up:After air is discharged, start electric heater unit 14, warming temperature is carried out to pyrolysis oven 3, heating rate is 10 DEG C/min, 400 DEG C are warmed up to, when temperature reaches set value, open reaction gas tank 6, in pyrolysis oven 3 reaction is passed through Gas and stably 30min, state load in reaction gas tank 6 for CO, CO2、CH4Or H2Gas;
S5:Reaction:Apparatus for placing in pyrolysis oven 3 is rapidly feeding the thermal treatment zone of pyrolysis oven 3 to cause coal particles 1 and biomass 2 carry out pyrolytic reaction, while Jing gasifying agent vapor pipe 7 is passed through vapor in pyrolysis oven 3, vapor and electricity While heater 14 coordinates regulation 3 pyrolysis temperature of pyrolysis oven, the efficiency of pyrolytic reaction, the steam Jing in simultaneous reactions are improved The layer of sand 8 that filters of the inner cavity top of pyrolysis oven 3 is discharged from the top of pyrolysis oven 3, sequentially enters the suction of dust absorbing device 9, waste gas Receiving apparatus 11 and blowing device 10, are again fed to heat energy in gasifying agent vapor pipe 7 by blowing device 10, the gas One end of agent vapor pipe 7 extends to the inner chamber of pyrolysis oven 3, and gasifying agent vapor pipe 7 stretches into the end in the inner chamber of pyrolysis oven 3 Portion is provided with taper steam shower nozzle, while realizing the recycling of heat, removes the dust and waste gas during pyrolytic reaction;
S6:Cooling:Close electric heater unit 14, gasifying agent vapor pipe 7, dust absorbing device after the completion of question response successively 9th, exhaust gas absorption device 11 and blowing device 10, are passed through inert gas in pyrolysis oven 3 again so that coal particles 1 and biology The apparatus for placing of matter 2 is cooled to room temperature in the environment of inert gas;
S7:Collect:The gas Jing gas vents 15 produced after reaction neutralization reaction are drained in gas filtration groove 12, most After collect environmental protection treatment treated in gas collection bag 13, and the solid residue after cooling down in step S6 is preserved and backed up Analysis is used, to the content and form that detect the sulphur of residual.
Embodiment 3
A kind of coal desulfurization technique, it is characterised in that:The method and step of the coal desulfurization technique is as follows:
S1:Sorting:The appropriate coal that selection needs desulfurization and the biomass 2 for reacting, the composition and property of the biomass 2 Include rich in alkali (alkaline earth) metal oxide and rich in nonmetal oxide for C/H and C/O compounds, and biomass;
S2:Crush:The coal chosen is carried out into crushing operation by reducing mechanism, coal particles 1 are obtained, taken and crush Coal particles 1 and corresponding quantitative biomass 2 be put in the charging aperture 4 on pyrolysis oven 3, sent by feed mechanism Enter in the apparatus for placing in the inner chamber of pyrolysis oven 3, hoisting mechanism, and the bottom of hoisting mechanism are provided with the inner chamber of pyrolysis oven 3 The quartzy apparatus for placing for holding coal particles 1 and biomass 2 is installed;
S3:Exhaust:After the apparatus for placing of coal particles 1 and biomass 2 is stable, inert gas tank 5 is opened, to pyrolysis oven Inert gas 30min is passed through in 3, the air in the inner chamber of pyrolysis oven 3 is discharged;
S4:Heat up:After air is discharged, start electric heater unit 14, warming temperature is carried out to pyrolysis oven 3, heating rate is 10 DEG C/min, 400 DEG C are warmed up to, when temperature reaches set value, open reaction gas tank 6, in pyrolysis oven 3 reaction is passed through Gas and stably 30min, state load in reaction gas tank 6 for CO, CO2、CH4Or H2Gas;
S5:Reaction:Apparatus for placing in pyrolysis oven 3 is rapidly feeding the thermal treatment zone of pyrolysis oven 3 to cause coal particles 1 and biomass 2 carry out pyrolytic reaction, while Jing gasifying agent vapor pipe 7 is passed through vapor in pyrolysis oven 3, vapor and electricity While heater 14 coordinates regulation 3 pyrolysis temperature of pyrolysis oven, the efficiency of pyrolytic reaction, the steam Jing in simultaneous reactions are improved The layer of sand 8 that filters of the inner cavity top of pyrolysis oven 3 is discharged from the top of pyrolysis oven 3, sequentially enters the suction of dust absorbing device 9, waste gas Receiving apparatus 11 and blowing device 10, are again fed to heat energy in gasifying agent vapor pipe 7 by blowing device 10, the gas One end of agent vapor pipe 7 extends to the inner chamber of pyrolysis oven 3, and gasifying agent vapor pipe 7 stretches into the end in the inner chamber of pyrolysis oven 3 Portion is provided with taper steam jet, while realizing the recycling of heat, removes the dust and waste gas during pyrolytic reaction;
S6:Cooling:Close electric heater unit 14, gasifying agent vapor pipe 7, dust absorbing device after the completion of question response successively 9th, exhaust gas absorption device 11 and blowing device 10, are passed through inert gas in pyrolysis oven 3 again so that coal particles 1 and biology The apparatus for placing of matter 2 is cooled to room temperature in the environment of inert gas;
S7:Collect:The gas Jing gas vents 15 produced after reaction neutralization reaction are drained in gas filtration groove 12, most After collect environmental protection treatment treated in gas collection bag 13, and the solid residue after cooling down in step S6 is preserved and backed up Analysis is used, to the content and form that detect the sulphur of residual.
Wherein, the early stage of pyrolysis, tar is quickly separated out, the hydroperoxyl radical in biomass simultaneously with gas phase and condensed phase In free radical react, after, after tar and gas are produced in a large number, biomass occur with the active component in residual semicoke Reaction;
Vapor is blown in pyrolysis oven 3 by Conic nozzle, coordinates regulation pyrolysis oven 3 to be pyrolyzed temperature with electric heater unit 14 Also the efficiency for improving pyrolytic reaction of degree, filtering layer of sand 8 can filter off most tar and dust, while coordinating dust absorbing Device 9 and exhaust gas absorption device 11 are further absorbed to dust and waste gas, environmental protection and cause testing crew exempt from Injured by dust and waste gas.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention And modification, the scope of the present invention be defined by the appended.

Claims (5)

1. a kind of coal desulfurization technique, it is characterised in that:The method and step of the coal desulfurization technique is as follows:
S1:Sorting:The appropriate coal that selection needs desulfurization and the biomass (2) for reacting;
S2:Crush:The coal chosen is carried out into crushing operation by reducing mechanism, coal particles (1) are obtained, take what is crushed Coal particles (1) and corresponding quantitative biomass (2) are put in the charging aperture (4) on pyrolysis oven (3), by feeding Mechanism is sent in the apparatus for placing in pyrolysis oven (3) inner chamber;
S3:Exhaust:After the apparatus for placing of coal particles (1) and biomass (2) is stable, inert gas tank (5) is opened, to pyrolysis Inert gas 30min is passed through in stove (3), the air in pyrolysis oven (3) inner chamber is discharged;
S4:Heat up:After air is discharged, start electric heater unit (14), warming temperature is carried out to pyrolysis oven (3), be warmed up to respectively 400 DEG C, 500 DEG C and 600 DEG C, when temperature reaches set value, reaction gas tank (6) is opened, be passed through in pyrolysis oven (3) anti- Should gas and stable 30min;
S5:Reaction:Apparatus for placing in pyrolysis oven (3) is rapidly feeding the thermal treatment zone of pyrolysis oven (3) to cause coal particles (1) and biomass (2) carry out pyrolytic reaction, while Jing gasifying agents vapor pipe (7) is passed through vapor, water in pyrolysis oven (3) While steam coordinates regulation pyrolysis oven (3) pyrolysis temperature with electric heater unit (14), the efficiency of pyrolytic reaction is improved, while instead The filtration layer of sand (8) of steam Jing pyrolysis ovens (3) inner cavity top in answering is discharged from the top of pyrolysis oven (3), sequentially enters powder Dirt absorption plant (9), exhaust gas absorption device (11) and blowing device (10), are again fed to heat energy by blowing device (10) In gasifying agent vapor pipe (7), while realizing the recycling of heat, the dust and waste gas during pyrolytic reaction is removed;
S6:Cooling:Close electric heater unit (14), gasifying agent vapor pipe (7), dust absorbing device after the completion of question response successively (9), exhaust gas absorption device (11) and blowing device (10), are passed through inert gas so that coal particles in pyrolysis oven (3) again And the apparatus for placing of biomass (2) is cooled to room temperature in the environment of inert gas (1);
S7:Collect:Gas Jing gas vents (15) produced after reaction neutralization reaction is drained in gas filtration groove (12), most After collect environmental protection treatment treated in gas collection bag (13), and the solid residue after cooling down in step S6 is preserved and standby Part analysis is used, to the content and form that detect the sulphur of residual.
2. a kind of coal desulfurization technique according to claim 1, it is characterised in that:Pyrolysis oven (3) in step S2 Inner chamber in be provided with hoisting mechanism, and the bottom of hoisting mechanism is provided with the quartz for holding coal particles (1) and biomass (2) Apparatus for placing.
3. a kind of coal desulfurization technique according to claim 1, it is characterised in that:Biomass (2) composition and property is C/H and C/O compounds, and biomass include rich in alkali (alkaline earth) metal oxide and rich in nonmetal oxide.
4. a kind of coal desulfurization technique according to claim 1, it is characterised in that:Load in reaction gas tank (6) For CO, CO2、CH4Or H2Gas.
5. a kind of coal desulfurization technique according to claim 1, it is characterised in that:The gasifying agent vapor pipe (7) One end extends to the inner chamber of pyrolysis oven (3), and the end that gasifying agent vapor pipe (7) is stretched in pyrolysis oven (3) inner chamber is provided with Taper steam jet.
CN201611210308.4A 2016-12-24 2016-12-24 Coal desulfurization technology Pending CN106590805A (en)

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CN109554537A (en) * 2018-11-19 2019-04-02 北京汉唐环保科技股份有限公司 Iron ore Special desulfurizing equipment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109554537A (en) * 2018-11-19 2019-04-02 北京汉唐环保科技股份有限公司 Iron ore Special desulfurizing equipment
CN109554537B (en) * 2018-11-19 2020-05-05 北京汉唐环保科技股份有限公司 Special desulfurization equipment for iron ore

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