CN109628135A - A kind of green coke device and application method - Google Patents
A kind of green coke device and application method Download PDFInfo
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- CN109628135A CN109628135A CN201811504261.1A CN201811504261A CN109628135A CN 109628135 A CN109628135 A CN 109628135A CN 201811504261 A CN201811504261 A CN 201811504261A CN 109628135 A CN109628135 A CN 109628135A
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- Prior art keywords
- tower
- coke
- green coke
- tower body
- green
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- 239000002010 green coke Substances 0.000 title claims abstract description 140
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000571 coke Substances 0.000 claims abstract description 70
- 239000003921 oil Substances 0.000 claims abstract description 52
- 239000003054 catalyst Substances 0.000 claims abstract description 50
- 238000005235 decoking Methods 0.000 claims abstract description 39
- 239000006260 foam Substances 0.000 claims abstract description 30
- 239000000295 fuel oil Substances 0.000 claims abstract description 15
- 238000006482 condensation reaction Methods 0.000 claims abstract description 13
- 238000005336 cracking Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 64
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 239000002737 fuel gas Substances 0.000 claims description 14
- 238000004939 coking Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 239000004606 Fillers/Extenders Substances 0.000 claims description 4
- 238000006555 catalytic reaction Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 15
- 230000006837 decompression Effects 0.000 abstract description 11
- 238000012512 characterization method Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000035800 maturation Effects 0.000 abstract description 3
- 238000000197 pyrolysis Methods 0.000 description 14
- 239000000203 mixture Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000011280 coal tar Substances 0.000 description 11
- 239000011269 tar Substances 0.000 description 11
- 238000005553 drilling Methods 0.000 description 10
- 239000003350 kerosene Substances 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000003245 coal Substances 0.000 description 7
- -1 oxygenatedchemicals Chemical group 0.000 description 6
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 6
- NXLOLUFNDSBYTP-UHFFFAOYSA-N retene Chemical compound C1=CC=C2C3=CC=C(C(C)C)C=C3C=CC2=C1C NXLOLUFNDSBYTP-UHFFFAOYSA-N 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 150000002989 phenols Chemical class 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 4
- 239000012075 bio-oil Substances 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 4
- 238000000921 elemental analysis Methods 0.000 description 4
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000003502 gasoline Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 150000007824 aliphatic compounds Chemical class 0.000 description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- TXCDCPKCNAJMEE-UHFFFAOYSA-N dibenzofuran Chemical compound C1=CC=C2C3=CC=CC=C3OC2=C1 TXCDCPKCNAJMEE-UHFFFAOYSA-N 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Chemical group 0.000 description 2
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 244000294611 Punica granatum Species 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- VTNFQLHLVLLZEA-UHFFFAOYSA-N benzene;naphthalene;toluene Chemical compound C1=CC=CC=C1.CC1=CC=CC=C1.C1=CC=CC2=CC=CC=C21 VTNFQLHLVLLZEA-UHFFFAOYSA-N 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 229940095259 butylated hydroxytoluene Drugs 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- 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
- C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G11/10—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with stationary catalyst bed
Abstract
A kind of green coke device and application method, including green coke tower, green coke tower include tower body, and decoking mouth is offered at the top of tower body, devoke and are provided with hydraulic decoking device at mouth；Tower body bottom is provided with feed inlet and coke outlet, and automatic bottom cover machine is provided at coke outlet；Coke plate layer of the gas phase plate layer passed through for oil gas for dividing the foam sheet of oily phase foam and gas phase foam and for generating coke is provided with inside tower body from top to bottom；Catalyst grid reactor is provided with above gas phase plate layer.Apparatus of the present invention are intermittent operation, small investment, simple process, technology maturation.Under green coke Ta Tanei suitable temperature, pressure condition, cracking, condensation reaction can occur for heavy oil residue or decompression residuum, obtain coke and oil gas, wherein pass through the oil gas of catalyst grid reactor, the yield of the oil discovery BTXN obtained after characterization is cooling has apparent increase, solves the problems, such as existing heavy oil residue or decompression residuum surplus and has no way of handling.
Description
Technical field
The invention belongs to technical field of coal chemical industry, it is related to a kind of green coke device and application method.
Background technique
Coal tar is coal liquid by-product obtained in pyrolytic process, can be divided into high temperature coal tar by the difference of pyrolysis temperature
Oil and coalite tar, wherein coalite tar has very high utility value.Coalite tar mainly contains arene
Close object, aliphatic compound, phenolic compound etc..It is wherein contour additional containing naphthalene, anthracene, phenanthrene, pyrene in compound fragrant hydrocarbon
It is worth fine chemicals；Aliphatic compound is the important component of the fuel oil such as gasoline, diesel oil, is plus hydrogen produces Gao Shiliu
The good raw material of alkane value diesel oil；Phenolic compound is in synthetic fibers, engineering plastics, pesticide, medicine, preservative, plasticizer, fragrance
And dyestuff intermediate etc. has extensive purposes.Therefore how separation coal tar efficiently, economic, environmentally friendly has seemed currently
It is particularly significant.
Compared to light oil, heavy coal tar is increasingly complex, and most of heavy oil is dropped, this not only causes the big of resource
Amount waste, while also polluted environment.How efficiently to handle heavy coal tar is necessarily becoming for current Developing Coal Chemical Industry
Gesture.Heavy coal tar can generate the more inferior residue oil of a large amount of quality during processing, traditional coking process and plus
Hydrogen process has been difficult to be carried out effectively processing and utilization.
A kind of green coke tower preheating device is described in Chinese patent CN108148613A, by being equipped with wheel carrier, air pressure tank, electricity
Magnetic heater box, pulsometer, heater wire, lifting pump rod, the lifting for realizing equipment uniformly preheat, and equipment by being equipped with air pressure tank
Pulsometer pressure supply control lifting pump rod is that electromagnetic heater box is gone up and down, and enables electromagnetic heater box in different height switch operating,
It is that green coke tower is uniformly preheated, and equipment also keeps equipment mobile more by being equipped with wheel carrier that electromagnetic heater box, which is equipped with electromagnetic heating line,
It is convenient, the problem of facilitating the uniform preheating of green coke tower.But this plant energy consumption is big, installation is inconvenient.In addition, due to this
Device is continuity operation, and large-scale inspection operation can be faced during driving, production capacity increase can be reduced in this way and be produced into
This.
A kind of green coke tower, including green coke tower tower body, electric heating are described in Chinese utility model patent CN106190226A
Device, coke removing appts, lifting device.Electric heater unit is used to heat green coke tower tower body and feedstock oil；Coke removing appts include setting
It is placed in the driving device on green coke tower top face top and is set to for scraping the decoking end of coke inside green coke tower, driving device is also
Including for driving decoking end to make the driving shaft rotated horizontally；Lifting device includes the lifting deceleration for being set to driving device bottom
Machine and the guide rail mounting base being socketed on driving shaft outer wall, the outer wallflow of guide rail mounting base are equipped with guide rail.The green coke tower is with existing skill
Art is compared, and has pollution-free, decoking thoroughly and the higher advantage of the degree of automation.But the device does not have Insulation, tower body
Suddenly cold and hot can make deformation of the body of coke drum.
A kind of coke drum preheating device, including two green coke towers are described in Chinese patent application 201320370168.2.
The utility model steady material balance and heat balance of apparatus system while realizing that green coke device is energy-saving, reduces
The cyclic swing of device, shortens green coke tower preheating time, improves the liquid yield of device, the energy for saving pump disappears
Consumption, the technique drawback of green coke device batch production have obtained breakthrough optimization.But there is no specific heating in device
Mode is heated simply by fixed heating device is equipped in tower body, this is easy to appear the non-uniform problem of heating, installation
Disassembly is also inconvenient.
Summary of the invention
To overcome the problems of the prior art, the object of the present invention is to provide a kind of green coke device and application methods.This dress
It is set to intermittent operation, small investment, simple process, technology maturation.Under green coke Ta Tanei suitable temperature, pressure condition, weight
Matter residual oil or decompression residuum (petroleum, plastic oil blend, bio-oil blend, coal tar, kerosene blend, kerosene slurry etc.)
Cracking, condensation reaction can occur, coke and oil gas (coker gasoline, coker gas oil, wax tailings etc.) are obtained, wherein passing through catalysis
The yield of the oil gas of agent grid reactor, the oil discovery BTXN obtained after characterization is cooling has apparent increase.It is this novel
Green coke device economic benefit is fairly obvious, is the new type ideal device for processing heavy oil residue or decompression residuum, it will solve existing
Heavy oil residue or decompression residuum are superfluous and the problem of have no way of handling.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of green coke device, including green coke tower, green coke tower include tower body, and decoking mouth is offered at the top of tower body, is devoked at mouth
It is provided with hydraulic decoking device；Tower body bottom is provided with feed inlet and coke outlet, and automatic bottom cover machine is provided at coke outlet；
The gas phase plate layer passed through for oil gas is provided with inside tower body from top to bottom for a point cystosepiment for oily phase foam and gas phase foam
Layer and the coke plate layer for generating coke；Catalyst grid reactor is provided with above gas phase plate layer.
A further improvement of the present invention lies in that catalyst grid reactor includes shell, it is provided with catalyst layer in shell,
Snap ring is provided on housing exterior walls.
A further improvement of the present invention lies in that being provided with sprinkling mouth and oil gas vent at the top of tower body；And it sprays mouth to be located at
Hydraulic decoking device side, oil gas vent are located at the hydraulic decoking device other side.
A further improvement of the present invention lies in that being provided with high-temperature fuel gas muff on tower body outer surface.
A further improvement of the present invention lies in that high-temperature fuel gas muff and tower body are mounted on tower body outer surface by flange
On, high-temperature fuel gas muff uses corrugated plating.
A further improvement of the present invention lies in that being provided with the skirt for being used to support tower body on tower body.
A further improvement of the present invention lies in that the cylindrical pressure vessel that tower body is vertically arranged, a height of 25m of tower body, tower
Body width is 7m.
A further improvement of the present invention lies in that coke plate layer includes cylindrical plate body, seven are offered on cylindrical plate body
The identical circular hole of size, wherein cylindrical plate body center offers a circular hole, and six circular holes in addition, which are evenly distributed on, to be located at
Around the circular hole at center, the outer wall and tower body inner wall of 6 circular holes are tangent, Circularhole diameter 1m；
Foam sheet includes cylindrical plate body, offers the identical circular hole of 14 sizes on cylindrical plate body, circular hole is straight
Diameter is 0.5m, wherein cylindrical plate body center is opened up there are four circular hole, and two-by-two side by side, ten circular holes in addition are evenly distributed on
Around centrally located four circular holes, the outer wall and tower body inner wall of ten circular holes are tangent；
Gas phase plate layer includes cylindrical plate body, offers several circular holes on cylindrical plate body, and the diameter of circular hole is less than
0.5m。
A further improvement of the present invention lies in that each plate layer is pacified in coke plate layer, foam sheet and gas phase plate layer
Equipped with level-sensing device.
A kind of application method of green coke device is shared, two using two green coke towers of the first green coke tower and the second green coke tower
Green coke tower is connected by four-way valve with inlet valve；The dust of electrostatic can be generated before progress coking reaction in tower top sprinkling mouth sprinkling
Little particle；550 DEG C -650 DEG C of heavy oil residue or decompression residuum will be preheated, green coke tower is entered by feed inlet, and in Ta Neifa
Raw cracking and condensation reaction, the coke that condensation reaction generates rests in tower, and from tower wall to Center Extender, is centrally formed charging
Channel, the oil gas above gas phase plate layer pass through the catalyst layer of catalyst grid reactor, reach the active site of catalyst into
Row reaction, the oil gas across catalyst layer duct is discharged from oil gas vent to be collected；It is devoked using high-pressure hydraulic decoking method；The
For one green coke tower when reacting green coke, another second green coke tower is then in the decoking stage；First green coke tower is another at the stage of decoking
Second green coke tower is then in reaction green coke.
Compared with prior art, the invention has the benefit that apparatus of the present invention are before progress coking reaction in tower
Top spray spills the dust little particle (granular size is about 5 μm) that mouth sprinkling generates electrostatic, and this short grained effect of dust is raw
Burnt tower inner plies surface tension increases, in order to which bigizationner avoids the coke generated in green coke tower from sticking together on green coke tower wall face,
The coke generated is set to remove and collect well.
Apparatus of the present invention are in coking reaction that the oil gas above gas phase plate layer passes through the catalysis of catalyst grid reactor
Oxidant layer, the active site for reaching catalyst are reacted, and the tower top oil gas across catalyst duct is discharged from oil gas vent to be collected.
The yield of the oil discovery BTXN obtained after characterization is cooling has apparent increase.
Apparatus of the present invention are intermittent operation, small investment, simple process, technology maturation.In the temperature that green coke Ta Tanei is suitable for
Under degree, pressure condition, heavy oil residue or decompression residuum (petroleum, plastic oil blend, bio-oil blend, coal tar, kerosene
Blend, kerosene slurry etc.) cracking, condensation reaction can occur, obtain coke and oil gas (coker gasoline, coker gas oil, wax tailings
Deng), wherein passing through the oil gas of catalyst grid reactor, the yield of the oil discovery BTXN obtained after characterization is cooling has obviously
Increase.This novel green coke device economic benefit is fairly obvious, is the new type ideal dress for processing heavy oil residue or decompression residuum
It sets, it will solve the problems, such as existing heavy oil residue or decompression residuum surplus and has no way of handling.
Detailed description of the invention
Fig. 1 is green coke tower structure schematic diagram；
Fig. 2 is green coke tower parallel-connection structure schematic diagram；
Fig. 3 is coke removing appts structural schematic diagram；
Fig. 4 is green coke tower internal component structural schematic diagram；
Fig. 5 is catalyst grid reactor schematic diagram；
Fig. 6 is that 1 phase combined gas chromatography mass spectrometry of embodiment analyzes result；
Fig. 7 is 1 each component content results of embodiment；
The content distribution that Fig. 8 is BTXN under the conditions of different catalysts in embodiment 1；
Fig. 9 is that 2 phase combined gas chromatography mass spectrometry of embodiment analyzes result；
Figure 10 is 2 each component content results of embodiment；
The content distribution that Figure 11 is BTXN under the conditions of different catalysts in embodiment 2.
In figure, 1, sprinkling mouth；2, flange；3, high-temperature fuel gas muff；4, hydraulic decoking device；5, mouth is devoked；6, oil gas
Outlet；7, catalyst grid reactor；8, level-sensing device；9, skirt；10, automatic bottom cover machine；11, feed inlet；12, the first green coke
Tower；13, the second green coke tower；14, four-way valve；15, inlet valve；16, high-pressure hydraulic pump；17, giant；18, drilling cramp；19, drilling rod；
20, hydraulic coke-cutting device；21, chute；22, coke；23, coke plate layer；24, foam sheet；25, gas phase plate layer；26, snap ring；27,
Catalyst layer.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing.
Referring to Fig. 1, a kind of novel green coke device of the invention, including green coke tower tower body, on green coke tower tower body from top to bottom
It is disposed with sprinkling mouth 1, flange 2, high-temperature fuel gas muff 3, hydraulic decoking device 4, decoking mouth 5, oil gas vent 6, catalysis
Agent grid reactor 7, level-sensing device 8, skirt 9, automatic bottom cover machine 10 and feed inlet 11.
The green coke tower tower body is a right circular cylinder shell pressure vessel, and top opens up spherical or ellipse decoking mouth 5, under
Portion is tower made of cone thickness boiler plate.Since the operation temperature of green coke tower is higher, and it is in suddenly cold and hot, high pressure water impact
Deng under more harsh operating condition, therefore easily there are the bulge of tower body burn into, deformation or even weld cracking and the inclined feelings of tower body
Condition, so the material of green coke tower tower body uses 1m thickness boiler plate.Tower body high setting is 25m or so, and tower body width is set as the left side 7m
The right side generally requires two towers for the considerations of operating and shares, a tower green coke, a tower coke discharging.One tower when reacting green coke,
Another is then in the decoking stage.That is (generally 2/3 or so the height of tower height when a Tai Tanei coke accumulation is to certain altitude
Degree) it switches over.
Fig. 4 is that green coke tower tower body internal component structural schematic diagram is led inside green coke tower main body tower from top to bottom referring to fig. 4
It to include 25 3 coke plate layer 23, foam sheet 24 and gas phase plate layer plate layer.Wherein coke plate layer 23 includes cylindrical plate
Body offers the identical circular hole of seven sizes on cylindrical plate body, and plate body center offers a circular hole, 6 circular holes in addition
It is evenly distributed on around centrally located circular hole, the outer wall and green coke tower tower body inner wall of 6 circular holes are tangent.(Circularhole diameter is
1m or so) it constitutes, it is the main place that coke generates.
Foam sheet 24 includes cylindrical plate body, offers the identical circular hole of 14 sizes on plate body, and (Circularhole diameter is
0.5m or so), wherein cylindrical plate body center is opened up there are four circular hole (square side by side two-by-two), 10 circular holes in addition
It is evenly distributed on around centrally located four circular holes, the outer wall and green coke tower tower body inner wall of 10 circular holes are tangent.Condensation is anti-
The coke that should be generated rests in tower, and from tower wall to Center Extender, is centrally formed to spout and expects channel, coke plate layer 23 the above are
Key reaction area, as 24th area of foam sheet, foam sheet 24 divide oily phase foam and gas phase foam.
Gas phase plate layer 25 includes cylindrical plate body, several circular holes is offered on plate body, and the diameter of circular hole is less than 0.5m,
With the progress of cracking reaction, highly viscous coal tar constantly forms foam by bubbling, and established bubbling is constantly broken again
Split evolution oil gas.
Sprinkling mouth 1 on the green coke tower tower body is mounted on the left of green coke tower tower body top, is to carry out coking reaction
Preceding to spray a kind of dust little particle (granular size is about 5 μm) for generating electrostatic, this short grained effect of dust is to make to give birth to
Burnt tower tower body inner plies surface tension increases, and avoids the coke generated in green coke tower from sticking together on green coke tower wall face, makes to generate
Coke can remove and collect well.
High-temperature fuel gas muff 3 and green coke tower are mounted on green coke tower tower body two sides by green coke tower flange, thus by high temperature
Combustion gas muff 3 and green coke tower connect；Before connecting flange, whether the specification of control flange, bolt and gasket meets the requirements,
Sealing surface will keep smooth clean and tidy, and the screw thread of bolt is complete, and gasket quality wants flexible, and surface is without breakage, fold, scratch etc.
Defect before assembly flange, cleans up flange, degreases, sundries, the seal line such as dust, rusty stain are rejected clean.
The high-temperature fuel gas muff 3 of the green coke tower is mounted on green coke tower tower body outer surface, this is a kind of by combustion gas combustion
Burn a kind of muff that heat release keeps the temperature tower body.High-temperature fuel gas muff 3 uses corrugated plating, has both increased the rigid of external protection
Degree, and solve the problems, such as the thermal expansion difference of tower body circumferential direction.This high-temperature fuel gas muff adiabatic heat insulating effect is good, high temperature resistant and
Low temperature, resistance to various chemical attacks, fire protection flame retarding, Water-proof and oil-proof have good hydrophobicity performance.
Referring to Fig. 3, the hydraulic decoking device 4 of the green coke tower is mounted on green coke tower tower body tower top, and hydraulic decoking device 4 is
Existing apparatus, hydraulic decoking device 4 include be followed successively by from top to bottom high-pressure hydraulic pump 16, giant 17, drilling cramp 18, drilling rod 19,
Hydraulic coke-cutting device 20, chute 21 and coke 22.
Decoking devokes method with high-pressure hydraulic, and the green coke tower for coalescing coke is first cooling with steam, then carries out hydraulic decoking.By
The high pressure water that high-pressure hydraulic pump 16 conveys arrives the nozzle of hydraulic coke-cutting device 20 by giant 17, drilling cramp 18, drilling rod 19, from water
The high pressure water that power coke cutter nozzle sprays forms high-pressure jet, cuts down coke by means of the strong impact power of high-pressure jet, makes
Flowed out together with water by tower bottom chute 21, drilling rod 19 constantly goes up and down and rotates, and coke 22 all removes in green coke tower
Until net.
Referring to Fig. 5, the catalyst grid reactor 7 is located above gas phase plate layer, is connected with green coke tower flange.Catalyst
Grid reactor 7 includes shell, is provided with catalyst layer 27 in shell, snap ring 26, catalyst layer 27 are provided on housing exterior walls
Positioned at 7 bosom position of catalyst grid reactor, in order to keep the oil gas of 25 top of gas phase plate layer anti-by catalyst grid
The catalyst layer 27 of device 7 is answered, the active site for reaching catalyst is reacted, and the tower top oil gas across catalyst duct is from oil gas
Outlet discharge is collected；Snap ring 26 is located on 7 outer wall of catalyst grid reactor, is to stablize catalyst grid reactor 7
It is fixed in green coke tower.The catalyst that catalyst layer 27 is placed is ZSM-5, Al2O3, USY, HY etc..
The green coke tower decoking mouth 5 is located at green coke top of tower, is provided with hydraulic decoking device 4 at green coke tower decoking mouth 5, and
And green coke tower decoking mouth 5 is connected with hydraulic decoking device 4.
The green coke tower oil gas vent 6 is located on the right side of tower top, and the medium in tower top oil gas outlet conduit is generally gas phase, manages
Diameter is larger, and pipeline is as short as possible, and has certain flexibility.
The green coke tower level-sensing device 8 is mounted on the side of green coke tower tower body, coke plate layer 23, foam sheet 24 and gas phase
Each plate layer installs a level-sensing device 8 in 25 3 plate layer of plate layer, focus carbon slab layer 23, foam sheet 24, gas phase plate layer 25
Height is monitored, and is observed the present position of foam sheet 24 and coke plate layer 25 in green coke tower, is helped to determine coke in time
Position, stop process charging instruct coking process operation, energy saving highly beneficial the utilization rate for improving coke drum.
The green coke tower skirt 9 is located at the welded seam area of connection tower body with taper position at tower body from top to bottom 2/3, is used to
Support tower body.
The green coke tower automatic bottom cover machine 10 is located at tower bottom coke outlet, and automatic bottom cover machine 10 is automatic open-close sealing knot
Structure, structural strength is reliable, favorable sealing property, and safety is guaranteed by operator, and labor intensity reduces significantly, can improve dress
Set working efficiency.
The green coke tower feed inlet 11 is located at below green coke tower bottom taper position, the heavy oil residue of 550 DEG C -650 DEG C of preheating
Or decompression residuum petroleum, plastic oil blend, bio-oil blend, coal tar, kerosene blend, kerosene slurry etc., by into
Material mouth 11 enters green coke tower and carries out coking reaction, and the coke for reacting generation stays in tower.
It referring to fig. 2, is green coke tower parallel-connection structure schematic diagram, including the first green coke tower 12, the second green coke tower 13, four-way valve 14
With inlet valve 15.It generally requires two towers to share, such as 12 green coke of the first green coke tower, 13 coke discharging of the second green coke tower.First green coke tower
12 when reacting green coke, and another second green coke tower 13 is then in the decoking stage.I.e. when a Tai Tanei coke accumulation to certain altitude
When (generally 2/3 or so height of tower height) switch over.
Fig. 5 is the schematic diagram of catalyst grid reactor 7,, will by snap ring 26 above gas phase plate layer 25 referring to Fig. 5
Catalyst grid reactor 7 is fixed on the position of 2 lower section of flange.It can be ZSM-5, Al in catalyst layer 272O3, USY, HY etc.
Catalyst.
Referring to fig. 2, a kind of application method of novel green coke device, carry out coking reaction before tower top sprinkling mouth spray one kind
The dust little particle (granular size is about 5 μm) for generating electrostatic is shared using two towers, with 15 phase of four-way valve 14 and inlet valve
Even, for a tower when reacting green coke, another is then in the decoking stage.First green coke tower 12 is when reacting green coke, and another second
Green coke tower 13 is then in the decoking stage.By the heavy oil residue or decompression residuum that preheat 550 DEG C -650 DEG C, (petroleum, plastic oil are blended
Object, bio-oil blend, coal tar, kerosene blend, kerosene slurry etc.), green coke tower is entered by feed inlet 11, in green coke tower
Tower body outer surface, to water heat supply, is generated vapor and is kept the temperature by high-temperature fuel gas muff 3 to tower body by combustion gas, and is fitted in tower
Suitable pressure and cracking and condensation reaction occur under conditions of the residence time, be cracked into the endothermic reaction, is condensed as exothermic reaction, splits
The heat of solution is provided in addition to from outer some of feed residue itself by condensation reaction, the coke stop that condensation reaction generates
In tower, and from tower wall to Center Extender, it is centrally formed feeding-passage, in coke plate floor 23 the above are key reaction area, that is, is steeped
Foam plate layer 24 is gas phase plate layer 25 on 24 top of foam sheet, and the oily phase foam of foam sheet point and gas phase foam, gas phase foam exist
Top, oily phase foam is more than focus layer, and pyrogenetic reaction temperature is froth bed temperature, generally 460-480 DEG C, and coking yield
Higher, the reaction temperature is higher.Coke layer is there is also pyrogenetic reaction, and the gas that cracking generates is overflowed from coke layer, coke layer
Voidage is about are as follows: 30%~50%.Hot coke layer height is set to be higher than the coke height of cold conditions.With raw material it is continuous into
Enter, the amount of coke of generation increases, and coke layer height increases, and froth bed is also continuous therewith to be increased.And 25 top of gas phase plate layer
Oil gas passes through the catalyst layer 27 of catalyst grid reactor 7, and the active site for reaching catalyst is reacted, and passes through catalyst
The tower top oil gas in duct is discharged from oil gas vent 6 and collects.So that the yield of benzene-toluene-naphthalene (BTXN) increases.
The yield of the oil discovery BTXN obtained after characterization is cooling has apparent increase.Decoking is devoked with high-pressure hydraulic
Method, the coke drum for coalescing coke 22 is first cooling with steam, then carries out hydraulic decoking.The high pressure water conveyed by high-pressure hydraulic pump 16,
The nozzle that hydraulic coke-cutting device 20 is arrived by giant 17, drilling cramp 18, drilling rod 19, the high pressure sprayed from 20 nozzle of hydraulic coke-cutting device
Water forms high-pressure jet, cuts down coke 22 by means of the strong impact power of high-pressure jet, is allowed to together with water by tower is arranged in
The chute 21 at bottom flows out, and drilling rod 19 constantly goes up and down and rotates, until coke is all cleared in green coke tower.
The Industrial Analysis and elemental analysis of coal sample used are shown in Table 1 in Examples 1 and 2.
The Industrial Analysis and elemental analysis of 1 coal sample of table
* minusing
Embodiment 1
Using northern Shensi chemical plant low-order coal as raw material, Industrial Analysis and elemental analysis are shown in Table 1, by a certain amount of kerosene
The heavy oil residue of slurry is preheated to 550 DEG C -650 DEG C, enters green coke tower by feed inlet and carries out pyrolysis green coke, green coke pressure tower maintains
In 0.1-0.15MPa, oil gas is escaped and is collected from top of tower, and coke remains in tower.Measure and calculate coke, pyrolysis water and heat
The yield for venting one's spleen and being pyrolyzed air cooling tar is shown in Table 2.Test obtains the tar that pyrolysis air cooling obtains and carries out gaschromatographic mass spectrometry
Combination analysis, and BTXN constituent content is analyzed, as a result see Fig. 6, Fig. 7 and Fig. 8, as can be seen from Figures 6 and 7, test obtains
The tar that pyrolysis air cooling obtains is mainly by aromatic hydrocarbon, aliphatic hydrocarbon, acid compound, oxygenatedchemicals, nitrogenous compound, sulfur-bearing
Compound and unknown compound composition, content is respectively 42.02%, 20.94%, 32.01%, 4.79%, 0%, 0.12% and
0.12%.Wherein aromatic hydrocarbon mainly contains retene, anthracene, phenanthrene, substituted arene etc., wherein the content highest of retene, is 6.72%, acid
Compound is mainly phenolic compound, content 32.01%.From figure 8, it is seen that by using different catalyst, discovery
The content of BTXN increases, best using ZSM-5 catalyst effect, reaches rich production.
2 embodiment 1 of table is pyrolyzed the yield of air cooling tar, pyrolysis char, pyrolysis gas
Embodiment 2
Using northern Shensi chemical plant low-order coal as raw material, Industrial Analysis and elemental analysis are shown in Table 1, before green coke,
A kind of dust for generating electrostatic is added in green coke tower, the heavy oil residue of a certain amount of kerosene slurry is preheated to 550 DEG C -650 DEG C, leads to
It crosses feed inlet 11 and carries out pyrolysis green coke into green coke tower, shared using two towers, be connected with four-way valve with inlet valve, a green coke
When tower green coke, another green coke tower coke discharging.Increase a catalyst grid reactor in green coke tower, in green coke tower tower body appearance
Face one kind to water heat supply, is generated vapor high-temperature fuel gas muff and kept the temperature to tower body by combustion gas, and be suitable in tower pressure,
With generation cracking and condensation reaction under conditions of the residence time, there are also one other than from feed residue itself for the heat of cracking
Divide and provided by condensation reaction, the coke that condensation reaction generates rests in tower.Measure and calculate coke, pyrolysis water and pyrolysis gas and
The yield of pyrolysis air cooling tar is shown in Table 3.Economic benefit is fairly obvious, overcomes residual oil superfluous and has no way of handling.Test obtains heat
The tar that solution air cooling obtains carries out gas chromatography combined with mass spectrometry analysis, and analyzes BTXN constituent content, as a result sees Fig. 9, figure
10 and Figure 11, from Fig. 9 and Figure 10 can be seen that test obtain the obtained tar of pyrolysis air cooling mainly by arene compound,
Aliphatic hydrocarbon compound, acid compound, oxygenatedchemicals, nitrogenous compound, sulfur-containing compound and unknown compound composition, contain
Amount is respectively 42.91%, 20.01%, 31.67%, 4.35%, 0%, 0.98% and 0.08%.Arene compound content is most
Height, predominantly retene, naphthalene, pyrene, phenanthrene, fluoranthene, alkyl-substituted naphthaline etc..Acid compound is mainly phenols, mainly phenol and its
Alkyl substituted phenol.Dibenzofuran, furans, alcohol etc. in oxygenatedchemicals.A small amount of butylated hydroxytoluene is also found, content is
0.12%.From figure 8, it is seen that finding that the content of BTXN increases by using different catalyst, using ZSM-5 catalyst
Effect is best, reaches rich production.
3 embodiment 2 of table is pyrolyzed the yield of air cooling tar, pyrolysis char, pyrolysis gas
Claims (10)
1. a kind of green coke device, which is characterized in that including green coke tower, green coke tower includes tower body, offers decoking mouth at the top of tower body
(5), it devokes at mouth (5) and is provided with hydraulic decoking device (4)；Tower body bottom is provided with feed inlet (11) and coke outlet, and goes out
Automatic bottom cover machine (10) are provided at Jiao Kou；The gas phase plate layer (25) passed through for oil gas is provided with inside tower body from top to bottom to use
In the foam sheet (24) of point oily phase foam and gas phase foam and coke plate layer (23) for generating coke；Gas phase plate layer
(25) top is provided with catalyst grid reactor (7).
2. a kind of green coke device according to claim 1, which is characterized in that catalyst grid reactor (7) includes shell,
It is provided in shell catalyst layer (27), snap ring (26) is provided on housing exterior walls.
3. a kind of green coke device according to claim 1, which is characterized in that be provided with sprinkling mouth (1) and oil at the top of tower body
Gas exports (6)；And it sprays mouth (1) and is located at hydraulic decoking device (4) side, oil gas vent (6) is located at hydraulic decoking device (4)
The other side.
4. a kind of green coke device according to claim 1, which is characterized in that be provided with high-temperature fuel gas guarantor on tower body outer surface
Temperature set (3).
5. a kind of green coke device according to claim 4, which is characterized in that high-temperature fuel gas muff (3) and tower body pass through
Flange (2) is mounted on tower body outer surface, and high-temperature fuel gas muff (3) uses corrugated plating.
6. a kind of green coke device according to claim 1, which is characterized in that be provided with the skirt for being used to support tower body on tower body
Seat (9).
7. a kind of green coke device according to claim 1, which is characterized in that the cylindrical pressure that tower body is vertically arranged holds
Device, a height of 25m of tower body, tower body width are 7m.
8. a kind of green coke device according to claim 1, which is characterized in that coke plate layer (23) includes cylindrical plate body,
The identical circular hole of seven sizes is offered on cylindrical plate body, wherein cylindrical plate body center offers a circular hole, in addition
Six circular holes are evenly distributed on around centrally located circular hole, and the outer wall and tower body inner wall of 6 circular holes are tangent, and Circularhole diameter is
1m；
Foam sheet (24) includes cylindrical plate body, offers the identical circular hole of 14 sizes on cylindrical plate body, circular hole is straight
Diameter is 0.5m, wherein cylindrical plate body center is opened up there are four circular hole, and two-by-two side by side, ten circular holes in addition are evenly distributed on
Around centrally located four circular holes, the outer wall and tower body inner wall of ten circular holes are tangent；
Gas phase plate layer (25) includes cylindrical plate body, offers several circular holes on cylindrical plate body, and the diameter of circular hole is less than
0.5m。
9. a kind of green coke device according to claim 1, which is characterized in that coke plate layer (23), foam sheet (24) with
And each plate layer is mounted on level-sensing device (8) in gas phase plate layer (25).
10. a kind of application method of green coke device as claimed in claim 3, which is characterized in that using the first green coke tower and the
Two two, green coke tower green coke towers share, and two green coke towers are connected by four-way valve (14) with inlet valve (15)；Carry out coking reaction
The preceding dust little particle that electrostatic can be generated in tower top sprinkling mouth (1) sprinkling；550 DEG C -650 DEG C of heavy oil residue will be preheated or subtracted
Residual oil is pressed, enters green coke tower by feed inlet (11), and cracking and condensation reaction occur in tower, the coke that condensation reaction generates
It rests in tower, and from tower wall to Center Extender, is centrally formed feeding-passage, the oil gas above gas phase plate layer (25) passes through catalysis
The catalyst layer (27) of agent grid reactor (7), the active site for reaching catalyst are reacted, and catalyst layer (27) hole is passed through
The oil gas in road is discharged from oil gas vent (6) and collects；It is devoked using high-pressure hydraulic decoking method；First green coke tower is in reaction green coke
When, another second green coke tower is then in the decoking stage；At the stage of decoking, another second green coke tower is then reacting first green coke tower
Green coke.
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|---|---|---|---|---|
| US4385980A (en) * | 1981-02-26 | 1983-05-31 | Conoco Inc. | Coal treating process |
| US20030192810A1 (en) * | 2002-04-11 | 2003-10-16 | Annesley Sharon A. | Separation process and apparatus for removal of particulate material from flash zone gas oil |
| CN102899079A (en) * | 2011-07-27 | 2013-01-30 | 中国石油化工股份有限公司 | Delayed coking method |
| CN103087769A (en) * | 2011-11-02 | 2013-05-08 | 中国石油化工股份有限公司 | Delayed coking method |
| US20140082999A1 (en) * | 2012-09-21 | 2014-03-27 | Lummus Technology Inc. | Coke drum additive injection |
| CN209210725U (en) * | 2018-12-10 | 2019-08-06 | 西北大学 | A kind of green coke device |
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|---|---|---|---|---|
| US4385980A (en) * | 1981-02-26 | 1983-05-31 | Conoco Inc. | Coal treating process |
| US20030192810A1 (en) * | 2002-04-11 | 2003-10-16 | Annesley Sharon A. | Separation process and apparatus for removal of particulate material from flash zone gas oil |
| CN102899079A (en) * | 2011-07-27 | 2013-01-30 | 中国石油化工股份有限公司 | Delayed coking method |
| CN103087769A (en) * | 2011-11-02 | 2013-05-08 | 中国石油化工股份有限公司 | Delayed coking method |
| US20140082999A1 (en) * | 2012-09-21 | 2014-03-27 | Lummus Technology Inc. | Coke drum additive injection |
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