CN106635113B - A kind of device and method for improving tar yield through catalytic reforming using coke-stove gas as raw material - Google Patents
A kind of device and method for improving tar yield through catalytic reforming using coke-stove gas as raw material Download PDFInfo
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- CN106635113B CN106635113B CN201710031643.6A CN201710031643A CN106635113B CN 106635113 B CN106635113 B CN 106635113B CN 201710031643 A CN201710031643 A CN 201710031643A CN 106635113 B CN106635113 B CN 106635113B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/06—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by destructive hydrogenation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/08—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form in the form of briquettes, lumps and the like
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/12—Applying additives during coking
Abstract
The invention discloses a kind of device and methods for improving tar yield through catalytic reforming using coke-stove gas as raw material.The pressures inside of the device is carbonization chamber, to reform reaction unit in carbonization chamber, it is toroidal combustion chamber on the outside of carbonization chamber, the carbon dioxide and vapor for first generating coke-stove gas, coke oven combustion chamber are passed through catalyst layer, catalytic reforming reaction occurs, gas stream is passed through in coal after reaction, and coal is pyrolyzed under the atmosphere.In the present invention, with methane reforming reaction occurs for carbon dioxide, and water gas reaction occurs between carbon monoxide and water, and the H intermediates of generation can be acted on the macromolecular radical generated in pyrolytic process, improve tar yield.Present invention reduces this is hydrogenated into, greenhouse effects are slowed down, improve environment；By adjusting the way of contact of pressures inside catalyst and coal, increase reaction contact area, increase operation rate, save the reaction time；And catalyst is layered with coal, and catalyst is easily recycled, and coal tar oily yield is high.
Description
Technical field
The present invention relates to a kind of device and methods for improving tar yield through catalytic reforming using coke-stove gas as raw material, belong to
Energy technology field.
Background technology
In today's society, country advocates development new energy, such as tide energy, solar energy, but technology is also immature at present,
Existing energy resource structure can not be substituted completely, so primary energy remains the energy that China mainly utilizes.But as main energy
Source, while people's demand is met, the thing followed also has the problems such as lack of energy and environmental pollution.Coal is instead of oil
Aspect has had been provided with quite ripe technical foundation, therefore coal oil-producing is had become as important technical solution.Pyrolysis of coal is one
Simple hot procedure, pyrolytic process of coal are a kind of technique for improving coal utilizaton rate.Exist in traditional coal pyrolytic process
The problems such as tar yield is low.Research shows that the formation of tar is related with cracking free radical during pyrolysis of coal.Coal hydrogenation pyrolysis can
It has been proven, but hydrogen is expensive with effectively improving the tar yield during pyrolysis of coal, methane is natural gas and coal seam
The main component of gas, through examining the methane containing 50% or so hydrogen and 25% or so in coal pyrolysis gas, that is, coke-stove gas, institute
It can be reduced to a certain extent with consideration coke-stove gas and add hydrogen amount.
Tar yield is improved at present mainly to realize by following a few class methods：
The pretreatment of coal：Pass through a series of processing before pyrolysis, change coal texture to a certain extent to improve pyrolysis
The tar yield and quality of process.It is all strong wait research shows that, appropriate H2Pretreatment can improve pyrolytic tar yield, reduce pyrolysis water
Yield.Use CO2And N2Pretreating effect, which is shown, influences less tar yield.
Reaction atmosphere：In pyrolytic process, in order to improve tar yield to the full extent.In pyrolytic process, it is typically chosen
Hydrogeneous more atmosphere, because it can generate more free radical in pyrolytic process.
1. Chinese patent 200510045853.8 discloses the pyrolysis under methane atmosphere, the scheme of use is：Using methane as
The method that reaction gas improves pyrolysis of coal tar yield, using methane as reaction gas, and adds in appropriate oxidant, after mixing in methane
Coal is pyrolyzed after metalNicatalyst catalytic activation；Condition is：Pressure is 0.1-3MPa, 400-800 DEG C of temperature,
Constant temperature 0-60min.The result shows that tar yield is higher than under the same terms under hydrogen atmosphere, while semi-coke yield is also above identical
Condition is wanted under hydrogen atmosphere.
2. the pyrolysis under coke-stove gas atmosphere：Contain a large amount of hydrogen and methane in coke-stove gas.Researcher is by coke oven
Hydrogen therein is generally only focused on when coal gas is as reaction atmosphere, but does not account for the effect of methane.Chinese patent
98104732.7 technical solution be：Using lignite and bituminous coal as raw material, add in suitable waste plastics and be passed through in coke-stove gas to coal
It is pyrolyzed.Condition is：Pressure is 0.1~5MPa, and temperature is 400~800 DEG C, as a result constant temperature 10 minutes shows tar content
Higher than nitrogen atmosphere under the same terms.But the preparation source cost of carbon dioxide is higher.
3. other are rich in the pyrolysis under methane mixed gas atmosphere：Chinese patent 201510141584.9 is melted down using pyrolysis gas
Catalyzed conversion improves the yield of coal tar, and reaction condition is 500-650 DEG C of temperature, and air speed 1200-6000mL/gh is catalyzed
Agent and coal sample mass ratio 1:10, pressure 0.1Mpa, constant temperature 30min.As a result show tar yield higher than nitrogen under the same terms
Yield.The scheme of Chinese patent 201010300034.4 is that one kind is used to be flowed to be rich in methane mixed gas and be improved as reaction atmosphere
Change the method for bed pyrolysis of coal tar yield, using the gaseous mixture for being rich in methane as reaction gas, as a result also show tar yield higher than phase
With under the conditions of under hydrogen and nitrogen atmosphere.But the preparation source cost of carbon dioxide is higher.
Invention content
The present invention is intended to provide a kind of device and method for improving tar yield through catalytic reforming using coke-stove gas as raw material,
The carbon dioxide generated using coke-stove gas and coke oven combustion chamber improves pyrolysis of coal as reaction gas by catalyst reformation
Tar yield reduces the amount for adding hydrogen to a certain extent, and cost-effective, the yield of tar is also above N under the same terms2Gas
Tar yield under atmosphere, the under certain condition tar yield also higher than under hydrogen atmosphere.
The present invention provides a kind of device for improving tar yield through catalytic reforming using coke-stove gas as raw material, including coke
Stove, gas-solid separator, condenser, oil water separator, external-heat steam gasification device, gas mixer；Pressures inside is charcoal
Change room, carbonization chamber is cylindrical structure, is the combustion chamber of annular on the outside of carbonization chamber, catalytic reforming reaction device is equipped in carbonization chamber,
The reforming reaction device is made of vertical hollow pipe and hollow disk, and carbonization chamber center is equipped with revolvable vertical hollow pipe, is erected
It is catalyst layer inside straight hollow pipe, catalytic reforming reaction occurs in vertical hollow pipe；Vertical hollow pipe outer wall is cased with parallel
The hollow disk of setting, hollow disk are annular harden structure, are uniformly provided with hole on annular slab, the inside of hollow disk is unlimited
Formula, vertical hollow pipe are communicated with hollow disk contact position；Gas collecting tube is equipped at the top of carbonization chamber, gas collecting tube connects gas-solid separator,
The gas-solid separator other end is connect with condenser, and condenser upper outlet is connected with gas mixer, condenser outlet
Oil water separator and external-heat steam gasification device are sequentially connected, gasification installation bottom is connected with gas mixer；From combustion
The exhaust gas section for burning the discharge of ceiling portion is connected with gas mixer, and gas mixer is with carbonizing indoor vertical hollow tube base
It is connected.
In above device, the hollow disk is is arranged in parallel, and the outer diameter of hollow disk increases successively from top to bottom up and down
Greatly.
In above device, the vertical hollow pipe diameter of the reforming reaction device and the diameter ratio of carbonization chamber are 0.02-
0.1：1, the outer diameter of hollow disk is 100 ~ 200cm, and the number of hollow disk is determined according to the height of practical hollow pipe.
In above device, hollow disk is evenly distributed on the outside of vertical hollow pipe, spacing 50-100cm；Outside hollow disk
Diameter is 100-2000 centimetres.
In above device, hollow disk is equipped with uniform hole, and aperture 2-3mm is equidistant between holes, is divided into
5-10cm。
In above device, weld together on the inside of the vertical hollow pipe and hollow disk.
The present invention provides a kind of method for improving tar yield through catalytic reforming using coke-stove gas as raw material, by coke-oven coal
The carbon dioxide and vapor that gas is generated with combustion chambers burn are passed into catalyst layer, are urged by catalyst as reaction gas
Change after reforming, coal is pyrolyzed, the reaction condition of pyrolysis of coal is：Temperature is 500~1100 DEG C, constant temperature 5-12 hours, catalysis
Agent is 1 with coal sample mass ratio：100-500, pressure are 0.1~3MPa.
The above method specifically includes following steps：（1）Pyrogenous origin product is with gas band coke oven, then by hot
Gas-solid separator isolates gas and semicoke/coke, then isolates oil water mixture and coke-stove gas by condenser, then passes through
Oil water separator isolates tar and water, and it is vapor that water is gasified by external-heat steam gasification device, is then passed to
Gas mixer；
（2）Then pyrogenous origin product isolates gas and half with gas band coke oven by hot gas-solid separator
It is burnt/burnt, then oil water mixture and coke-stove gas are isolated by condenser, then coke-stove gas is passed into gas mixer；
（3）The carbon dioxide that coke oven combustion chamber generates is passed through gas mixer；
（4）Three kinds of vapor, coke-stove gas and carbon dioxide gases are passed into reformation after gas mixer is sufficiently mixed
In reaction unit.
In the above method, it is fine coal or lump coal to be pyrolyzed coal used.
In above-mentioned reaction process, the slewing rate of vertical hollow pipe and hollow disk turns/hour for 30-60.
The principle of the invention：The carbon dioxide and vapor for first generating coke-stove gas, coke oven combustion chamber are passed through catalysis
Catalytic reforming reaction occurs under the effect of the catalyst for oxidant layer, and the gas stream after reaction is passed through in coal, under the atmosphere to coal into
Row pyrolysis.With methane reforming reaction occurs for carbon dioxide, and water gas reaction, two kinds of reaction process occur between carbon monoxide and water
The H intermediates of middle generation can interact with the macromolecular radical generated in pyrolytic process, so as to improve tar yield.
The present invention reduces using the carbon dioxide that coke-stove gas and combustion chamber generate as reaction gas and is hydrogenated into this, to a certain extent
Greenhouse effects are slowed down, improve environment；And by adjusting the way of contact of pressures inside catalyst and coal, increase coal with reacting
The contact area of gas, increases operation rate, and saves the reaction time；And catalyst is layered with coal, and catalyst is easily recycled, coal
Tar yield is high.
Beneficial effects of the present invention：
(1) gases used raw material is substantially reduced for coke-stove gas and the carbon dioxide of combustion chamber generation, production cost；
(2) catalyst can reuse；
(3) tar yield is compared with N2It is greatly improved under atmosphere；
(4) tail gas after coal combustion is used, reduces greenhouse effects, reduce environmental pollution；
(5) it is heated than more uniform；
(6) yield of tar is significantly improved.
Description of the drawings
Fig. 1 is the structure diagram of apparatus of the present invention.
Fig. 2 is the structure diagram of hollow disk.
Fig. 3 is the vertical view of hollow disk.
In figure：1 hollow disk；2 carbonization chambers；3 gas-solid separators；4 condensers；5 oil water separators；6 combustion chambers；
7 circular holes；8 vertical hollow pipes；9 catalyst layers；10 exhaust gas；11 external-heat steam gasification devices；12 follow-up synthesis works
Section；13 gas mixers；14 gas collecting tubes.
Specific embodiment
It is further illustrated the present invention below by embodiment, but is not limited to following embodiment.
As shown in Fig. 1 ~ 3, a kind of device for improving tar yield through catalytic reforming using coke-stove gas as raw material, including coke
Stove, gas-solid separator 3, condenser 4, oil water separator 5, external-heat steam gasification device 11, gas mixer 13；In coke oven
Portion is carbonization chamber 2, and carbonization chamber 2 is cylindrical structure, and 2 outside of carbonization chamber is annular combustion chamber 6, and catalysis weight is equipped in carbonization chamber 2
Whole reaction unit, the reforming reaction device are made of vertical hollow pipe 8 and hollow disk 1, and 2 center of carbonization chamber is equipped with revolvable
Vertical hollow pipe 8, vertical 8 inside of hollow pipe is catalyst layer 9, and catalytic reforming reaction occurs in vertical hollow pipe 8；It is vertical empty
8 outer wall of heart pipe is cased with the hollow disk 1 being arranged in parallel, and hollow disk 1 is annular harden structure, and circular hole 7 is uniformly provided on annular slab,
The inside of hollow disk 1 is open type, and vertical hollow pipe 8 is communicated with hollow 1 contact position of disk；2 top of carbonization chamber is equipped with gas collection
Pipe 14, gas collecting tube 14 connect gas-solid separator 3, and 3 other end of gas-solid separator connect with condenser 4,4 upper outlet of condenser and
Gas mixer 13 is connected, and 4 lower part outlet of condenser is sequentially connected oil water separator 5 and external-heat steam gasification device
11, gasification installation bottom is connected with gas mixer 13；The exhaust gas section and gas mixer 13 discharged from 6 top of combustion chamber
It is connected, gas mixer 13 is connected with 8 bottom of vertical hollow pipe in carbonization chamber 2.
In above device, the hollow disk 1 is is arranged in parallel, and the outer diameter of hollow disk increases successively from top to bottom up and down
Greatly.
In above device, 8 diameter of vertical hollow pipe of the reforming reaction device and the diameter ratio of carbonization chamber are 0.02-
0.1：1, first open circles dish external diameter is 100cm, is 2 with hollow pipe ratio:1, second open circles dish external diameter is 150cm, the
Three open circles dish external diameters are 200cm, are successively increased, hollow disk number is determined according to practical hollow pipe height.
In above device, hollow disk 1 is evenly distributed on vertical 8 outside of hollow pipe, spacing 50-100cm；Hollow disk
Outer diameter is 100-2000 centimetres.In this example, hollow disk is uniformly welded on vertical hollow pipe, and hollow disk internal diameter is
50cm。
In above device, hollow disk 1 is equipped with uniform circular hole 7, and aperture 2-3mm is equidistant between holes,
It is divided into 5-10cm.
In above device, the vertical hollow pipe 8 welds together with hollow 1 inside of disk.
The technological process of above device is：The carbon dioxide and vapor of coke-stove gas and combustion chambers burn generation are made
For reaction gas, catalyst layer is passed into, after being reformed by catalyst, coal is pyrolyzed, the reaction condition of pyrolysis of coal is：
Temperature is 500~1100 DEG C, constant temperature 5-12 hours, and catalyst is 1 with coal sample mass ratio：100-500, pressure are 0.1~3MPa.
Specifically include following steps：
（1）Then pyrogenous origin product isolates gas and half with gas band coke oven by hot gas-solid separator
It is burnt/burnt, then oil water mixture and coke-stove gas are isolated by condenser, then by oil water separator isolate tar and
Water, it is vapor that water is gasified by external-heat steam gasification device, then passes to gas mixer；
（2）Then pyrogenous origin product isolates gas and half with gas band coke oven by hot gas-solid separator
It is burnt/burnt, then oil water mixture and coke-stove gas are isolated by condenser, then coke-stove gas is passed into gas mixer；
（3）The carbon dioxide that coke oven combustion chamber generates is passed through gas mixer；
（4）Three kinds of vapor, coke-stove gas and carbon dioxide gases are passed into reformation after gas mixer is sufficiently mixed
In reaction unit.
In the above method, it is fine coal or lump coal to be pyrolyzed coal used.
In the above method, in reaction process, the slewing rate of vertical hollow pipe and hollow disk turns/hour for 30-60.
Illustrate the implementation result of the present invention below by specific embodiment：
Comparative example 1
It is pyrolyzed under N2 atmosphere
By a certain size coal in the range of 500 DEG C -1100 DEG C of pyrolysis temperature, pressure is normal pressure, and the residence time is small for 1
When, nitrogen flow rate 600ml/min.For tar yield at 500 DEG C, 600 DEG C, 700 DEG C, 800 DEG C, 900 DEG C are respectively 4.17%,
4.14%, 4.46%, 4.63%, 4.52%.
Comparative example 2
It is pyrolyzed under coke-stove gas, burning waste gas and vapor mixed atmosphere
By a certain size coal in the range of 500 DEG C -1100 DEG C of pyrolysis temperature, pressure is normal pressure, and the residence time is small for 1
When, coke-stove gas, burning waste gas and vapor gaseous mixture flow velocity are 600ml/min.Tar yield is at 500 DEG C, 600 DEG C, 700
DEG C, 800 DEG C, 900 DEG C, respectively 4.35%, 4.63%, 5.06%, 4.74%, 4.63%.
Embodiment 1
Ni/Al2O3Catalytic activation gaseous mixture is pyrolyzed
Selection catalyst is Ni/Al2O3,By a certain size coal in the range of 500 DEG C -1100 DEG C of pyrolysis temperature, pressure is
Normal pressure, residence time are 1 hour, and gaseous mixture flow velocity is 600ml/min.Tar yield is at 500 DEG C, 600 DEG C, 700 DEG C, 800
DEG C, 900 DEG C, respectively：3.49%, 3.56%, 4.96%, 4.68%, 4.71%.
Embodiment 2
Ni/MgO catalytic activations gaseous mixture is pyrolyzed
Selection catalyst is Ni/MgO, and selection catalyst is Ni/Al2O3,By a certain size coal in pyrolysis temperature 500
In the range of DEG C -1100 DEG C, pressure is normal pressure, and the residence time is 1 hour, and gaseous mixture flow velocity is 600ml/min.Tar yield exists
500 DEG C, 600 DEG C, 700 DEG C, 800 DEG C, 900 DEG C, respectively 3.67%, 4.01%, 6.96%, 4.03%, 4.02%.
Embodiment 3
Ni/MgO catalytic activation different flows gaseous mixture is pyrolyzed
Selection catalyst is Ni/MgO, and by a certain size coal in 500 DEG C of pyrolysis temperature, gaseous mixture air speed is in 1200-
It is pyrolyzed under the conditions of in the range of 6000mL/gh, the residence time is one hour.Tar yield is in 1200mL/gh, 2400mL/
Gh, 3600mL/gh, 4800mL/gh, 6000mL/gh are respectively：6.74%, 7.44%, 5.51%, 5.12%,
4.91%。
Coke-stove gas, burning waste gas and vapor mixture gas it can be seen from comparative example 1-2, embodiment 3-5 results
The yield of tar can be improved under atmosphere, it is 500 DEG C -600 DEG C to be most suitable for answering temperature, and it is 400mL/min to be most suitable for answering flow.Ni/
Tri- kinds of catalyst of MgO being capable of activating mixed gas, hence it is evident that improves tar yield.Ni/Al2O3To improving the yield effect of tar not
Significantly.
Claims (10)
1. a kind of gas obtained by raw material of coke-stove gas through catalytic reforming is that reaction atmosphere improves pyrolysis of coal tar yield
Device, it is characterised in that：Including coke oven, gas-solid separator, condenser, oil water separator, external-heat steam gasification device, gas
Body mixer；Pressures inside is carbonization chamber, and carbonization chamber is cylindrical structure, the combustion chamber on the outside of carbonization chamber for annular, in carbonization chamber
Equipped with catalytic reforming reaction device, which is made of vertical hollow pipe and hollow disk, carbonization chamber center
It is catalyst layer inside vertical hollow pipe equipped with revolvable vertical hollow pipe, it is anti-that catalytic reforming occurs in vertical hollow pipe
It should；Vertical hollow pipe outer wall is cased with the hollow disk being arranged in parallel, and hollow disk is annular harden structure, is uniformly provided on annular slab
Hole, the inside of hollow disk is open type, and vertical hollow pipe is communicated with hollow disk contact position；Gas collecting tube is connected outside carbonization chamber,
Gas collecting tube connects gas-solid separator, and the gas-solid separator other end is connect with condenser, condenser upper outlet and gas mixer
Be connected, condenser outlet is sequentially connected oil water separator and external-heat steam gasification device, gasification installation bottom with
Gas mixer is connected；The exhaust gas section discharged from top of combustion chamber is connected with gas mixer, gas mixer and charcoal
Change indoor vertical hollow tube base to be connected.
2. the gas according to claim 1 obtained by raw material of coke-stove gas through catalytic reforming is that reaction atmosphere improves coal
The device of pyrolytic tar yield, it is characterised in that：The hollow disk is is arranged in parallel up and down, and the outer diameter of hollow disk is from upper
It is sequentially increased under.
3. the gas according to claim 1 obtained by raw material of coke-stove gas through catalytic reforming is that reaction atmosphere improves coal
The device of pyrolytic tar yield, it is characterised in that：The vertical hollow pipe diameter of the catalytic reforming reaction device and carbonization chamber
Diameter ratio is 0.02-0.1：1, the outer diameter of hollow disk is 100 ~ 200cm, and the number of hollow disk is according to the height of practical hollow pipe
Degree is fixed.
4. the gas according to claim 1 obtained by raw material of coke-stove gas through catalytic reforming is that reaction atmosphere improves coal
The device of pyrolytic tar yield, it is characterised in that：Hollow disk is evenly distributed on the outside of vertical hollow pipe, spacing 50-
100cm；Open circles dish external diameter is 100-2000 centimetres.
5. the gas according to claim 1 obtained by raw material of coke-stove gas through catalytic reforming is that reaction atmosphere improves coal
The device of pyrolytic tar yield, it is characterised in that：Hollow disk is equipped with uniform hole, aperture 2-3mm, between holes etc.
Spacing, is divided into 5-10cm.
6. the gas according to claim 1 obtained by raw material of coke-stove gas through catalytic reforming is that reaction atmosphere improves coal
The device of pyrolytic tar yield, it is characterised in that：Weld together on the inside of the vertical hollow pipe and hollow disk.
7. a kind of gas obtained by raw material of coke-stove gas through catalytic reforming is that reaction atmosphere improves pyrolysis of coal tar yield
Method, use claim 1~6 any one of them using coke-stove gas be raw material through the gas that catalytic reforming obtains as reaction gas
Atmosphere improves the device of pyrolysis of coal tar yield, it is characterised in that：
Using the carbon dioxide and vapor of coke-stove gas and combustion chambers burn generation as reaction gas, catalyst layer is passed into,
After being reformed by catalyst, coal is pyrolyzed, the reaction condition of pyrolysis of coal is：Temperature is 500~1100 DEG C, constant temperature 5-
12 hours, catalyst was 1 with coal sample mass ratio：100-500, pressure are 0.1~3MPa；
The catalyst is Ni/MgO.
8. the gas according to claim 7 obtained by raw material of coke-stove gas through catalytic reforming is that reaction atmosphere improves coal
The method of pyrolytic tar yield, it is characterised in that：
（1）Pyrogenous origin product with gas band coke oven, gas and semicoke/coke are then isolated by gas-solid separator, then
Oil water mixture and coke-stove gas are isolated by condenser, tar and water are then isolated by oil water separator, water is led to
It is vapor to cross the gasification of external-heat steam gasification device, then passes to gas mixer；
（2）Pyrogenous origin product with gas band coke oven, gas and semicoke/coke are then isolated by gas-solid separator, then
Oil water mixture and coke-stove gas are isolated by condenser, then coke-stove gas is passed into gas mixer；
（3）The carbon dioxide that coke oven combustion chamber generates is passed through gas mixer；
（4）Three kinds of vapor, coke-stove gas and carbon dioxide gases are passed into catalytic reforming after gas mixer is sufficiently mixed
In reaction unit.
9. the gas according to claim 8 obtained by raw material of coke-stove gas through catalytic reforming is that reaction atmosphere improves coal
The method of pyrolytic tar yield, it is characterised in that：Pyrolysis coal used is fine coal or lump coal.
10. the gas according to claim 8 obtained by raw material of coke-stove gas through catalytic reforming is that reaction atmosphere improves
The method of pyrolysis of coal tar yield, it is characterised in that：In reaction process, the slewing rate of vertical hollow pipe and hollow disk is
30-60 turns/hour.
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| CN110155947B (en) * | 2019-05-05 | 2023-05-05 | 杨皓 | Process for using coke oven regenerator as hydrocarbon reformer |
| CN110760314B (en) * | 2019-10-21 | 2020-11-06 | 陈良明 | Coke refining method and coke refining furnace |
| CN110922996A (en) * | 2019-10-24 | 2020-03-27 | 开滦（集团）有限责任公司 | Method for modulating coal catalytic pyrolysis gas-phase product by using high-temperature coke oven gas |
| CN114736694A (en) * | 2021-03-31 | 2022-07-12 | 山东优肯诺节能科技有限公司 | Coke oven carbon reduction and coke prevention method and system |
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| CN2175388Y (en) * | 1993-10-10 | 1994-08-24 | 高云彩 | Round type vertical furnace for continuous thermal decomposition of coal |
| CN101747922A (en) * | 2010-01-05 | 2010-06-23 | 大连理工大学 | Method for increasing yield of coal-pyrolysis-based tar in reaction atmosphere of methane-rich gas mixture in fluidized bed |
| CN102827620A (en) * | 2011-06-17 | 2012-12-19 | 何巨堂 | Methane-rich gas production combined internal heat coal dry distillation poly-production technology |
| JP5211369B1 (en) * | 2012-12-25 | 2013-06-12 | 新日鉄住金エンジニアリング株式会社 | Coal pyrolysis method |
| CN205046054U (en) * | 2015-10-28 | 2016-02-24 | 航天长征化学工程股份有限公司 | Coiled coal pyrolysis device |
| GB2539447A (en) * | 2015-06-16 | 2016-12-21 | Sage & Time Llp | A gasification system |
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2017
- 2017-01-17 CN CN201710031643.6A patent/CN106635113B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2175388Y (en) * | 1993-10-10 | 1994-08-24 | 高云彩 | Round type vertical furnace for continuous thermal decomposition of coal |
| CN101747922A (en) * | 2010-01-05 | 2010-06-23 | 大连理工大学 | Method for increasing yield of coal-pyrolysis-based tar in reaction atmosphere of methane-rich gas mixture in fluidized bed |
| CN102827620A (en) * | 2011-06-17 | 2012-12-19 | 何巨堂 | Methane-rich gas production combined internal heat coal dry distillation poly-production technology |
| JP5211369B1 (en) * | 2012-12-25 | 2013-06-12 | 新日鉄住金エンジニアリング株式会社 | Coal pyrolysis method |
| GB2539447A (en) * | 2015-06-16 | 2016-12-21 | Sage & Time Llp | A gasification system |
| CN205046054U (en) * | 2015-10-28 | 2016-02-24 | 航天长征化学工程股份有限公司 | Coiled coal pyrolysis device |
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