CN107158876A - The production of hydrocarbons technique of high-temperature oil gas dust arrester after a kind of oil shale retorting - Google Patents
The production of hydrocarbons technique of high-temperature oil gas dust arrester after a kind of oil shale retorting Download PDFInfo
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- CN107158876A CN107158876A CN201710586043.6A CN201710586043A CN107158876A CN 107158876 A CN107158876 A CN 107158876A CN 201710586043 A CN201710586043 A CN 201710586043A CN 107158876 A CN107158876 A CN 107158876A
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- dust
- gas
- oil
- metal film
- inert gas
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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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
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/06—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of oil shale and/or or bituminous rocks
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/024—Dust removal by filtration
Abstract
The production of hydrocarbons technique of high-temperature oil gas dust arrester after a kind of oil shale retorting, during to the dust-laden oil gas of carbonization furnace, starts gravitational precipitator, metal film filter and inert gas heater, inert gas compression set；The dust-laden oil and gas import that high temperature dust oil gas enters gravitational precipitator by pipeline after oil shale retorting enters gravitational precipitator；Gravitational precipitator is separated by rotary-cut and centrifugal force to the thick dust granules in dust-laden oil gas；The coarse granule isolated in dust-laden oil gas slips into the bottom of gravitational precipitator, is cooled down by the pipeline of outlet into crude particle dust cooling during rolling storehouse, enters ash can by pipeline after crude particle dust cooling；By the blowback of inert gas, particle dust is fallen into the cooling storehouse of metal film filter bottom part down；The present invention step one be：Gravitational dust collection；Step 2 is：High-precision filtration is realized by metal film filter, the consumption of the energy is reduced, the effect of dedusting is improved.
Description
Technical field
The present invention relates to the high-temperature oil gas dedusting after oil shale retorting, high-temperature oil gas is removed after especially a kind of oil shale retorting
The production of hydrocarbons technique of dirt device.
Background technology
At present, oil shale is also known as oil shale, is a kind of solid combustible organic sedimentary rock of high mineral content.Oil shale
The shale oil of similar crude oil and the coal gas of similar natural gas are can obtain through being pyrolyzed (low temperature distillation).China's energy resource structure be rich coal,
Oil-poor, few gas.Shale oil and can coal gas, as the supplement of conventional energy resource, to changing China's energy resource structure and energy security, tool
There is very important strategic importance.
Oil shale obtains 450 DEG C of high-temperature oil gas through low temperature distillation, during the dedusting of high-temperature oil gas is oil shale distillation process
A key issue, solve it is bad can cause in oil gas that dustiness is high, greasy filth growing amount is big, or even fouling causes device system
System is blocked.Using efficient cyclone separator come dedusting in current oil shale industry.Efficient cyclone separator can be in high temperature, height
Normally run in the harsh conditions such as pressure, high granule density, highly corrosive, but efficiency of dust collection is not high, for 50 μm of dust, dedusting effect
Rate can only achieve 90% or so；For 5 μm of dust, efficiency of dust collection can only achieve 70% or so；And to 1 μm of dust, efficiency of dust collection
It can only achieve 25% or so.Reached for 5 μm of dust of ＜ in destructive distillation oil gas using multi-cyclone series connection also difficulty
Dust removal requirement.The characteristic of particle is also changed under hot conditions, and the effect of dedusting also can be worse；In view of the foregoing.It is existing
Propose a kind of production of hydrocarbons technique of high-temperature oil gas dust arrester after oil shale retorting.
The content of the invention
The invention aims to overcome the high-temperature oil gas that existing oil shale obtains 450 DEG C through low temperature distillation, efficiently
Cyclone separator can normally be run in the harsh conditions such as high temperature, high pressure, high granule density, highly corrosive, but efficiency of dust collection
Not high, for 50 μm of dust, efficiency of dust collection can only achieve 90% or so；For 5 μm of dust, it is left that efficiency of dust collection can only achieve 70%
It is right；And to 1 μm of dust, efficiency of dust collection can only achieve 25% or so.For 5 μm of dust of ＜ in destructive distillation oil gas, multistage is employed
Also difficulty reaches dust removal requirement for cyclone separator series connection；The characteristic of particle is also changed under hot conditions, the effect of dedusting
Can be worse；By reasonably designing, there is provided a kind of production of hydrocarbons technique of high-temperature oil gas dust arrester after oil shale retorting, this hair
High temperature dust oil gas dust collecting process after bright oil shale retorting, described dust-laden oil gas comes from carbonization furnace.Its dedusting
Processing step is divided into：One gravitational dust collection, is removed crude particle dust in oil gas using the mass force of dust.Two pass through metal film mistake
Filter realizes high-precision filtration；Without multi-cyclone series connection dust, process equipment is reduced, the consumption of the energy is reduced, carries
The effect of high dedusting.
The present invention to achieve these goals, is adopted the following technical scheme that：High-temperature oil gas dedusting after a kind of oil shale retorting
The production of hydrocarbons technique of device, high-temperature oil gas dust arrester is by gravitational precipitator, metal film mistake after described oil shale retorting
Filter, crude particle dust cooling during rolling storehouse, particle dust cooling during rolling storehouse, ash can, inert gas heater, inert gas pressure
Compression apparatus, Venturi tube, clean oil gas vent are constituted；Gravitational precipitator side is set above metal film filter, gravitational precipitator
Set and set on the outside of pipe-line, the upper oral part of gravitational precipitator opposite side between outlet and metal film filter lower inlet
Dust-laden oil and gas import is put, the row's of reserving dust-laden oil-gas hole between gravitational precipitator and dust-laden oil and gas import；The bottom of gravitational precipitator
It is set to below conical bottom, gravitational precipitator set crude particle dust cooling during rolling storehouse, the bottom of gravitational precipitator and coarse granule
The powder transfer pipelines of high temperature crude particle dust are set between dust cooling during rolling storehouse；
The bottom of metal film filter is set to below conical bottom, metal film filter set particle dust cooling during rolling
Storehouse, sets the dust delivery pipe of high temperature crude particle dust between the bottom and particle dust cooling during rolling storehouse of metal film filter
Road；
Set below particle dust cooling during rolling storehouse in the middle of ash can, particle dust cooling during rolling storehouse, crude particle dust
The lower section of cooling storehouse is set between ash can respectively sets dust outlet below powder transfer pipelines, ash can；
Metal film filter upper end, which is set, uniformly reserves at least three holes on closure, the closure of metal film filter,
Set respectively in hole sets inert gas to compress dress above inert gas compressed gas pipeline, the closure of metal film filter
Put, inert gas compression set side sets inert gas heater, inert gas compression set and inert gas heater it
Between pipeline is set, set at least three to export below inert gas compression set；Set below the closure of metal film filter
At least three Venturi tubes, set inert gas compressed gas pipeline respectively between inert gas compression set and Venturi tube；Metal
Clean oil gas vent is set in film filter top side preformed hole, hole；
During to the dust-laden oil gas of carbonization furnace, start gravitational precipitator, metal film filter and inert gas heating
Device, inert gas compression set；High temperature dust oil gas enters the dust-laden oil gas of gravitational precipitator by pipeline after oil shale retorting
Import, enters gravitational precipitator by dust-laden oil and gas import；Gravitational precipitator is by rotary-cut and centrifugal force in dust-laden oil gas
Thick dust granules are separated；The coarse granule isolated in dust-laden oil gas slips into the bottom of gravitational precipitator, passes through the pipe of outlet
Road is cooled down into crude particle dust cooling during rolling storehouse, enters ash can by pipeline after crude particle dust cooling.
The dust-laden oil gas for the powder containing fine grained isolated in dust-laden oil gas is discharged by outlet above gravitational precipitator, is passed through
The dust-laden oil gas that pipe-line enters in the bottom of metal film filter, metal film filter passes through metal membrane filtration when rising
Core, metal membrane cartridge is collected separation to the particle dust in dust-laden oil gas.
Particle dust in dust-laden oil gas is by collecting after separation, and the oil gas risen in metal film filter top is
Clean oil gas, clean oil gas is entered next by the clean oil gas vent of metal film filter top side by conveyance conduit
Individual workshop.
While particle dust in dust-laden oil gas is collected separation, inert gas heater is the inertia after heating
Gas is delivered in inert gas compression set and is compressed, and the inert gas heat, compressed enters Venturi tube by pipeline, leads to
The mouth of pipe discharge inert gas of Venturi tube is crossed, for the inert gas of atomization, the inert gas of atomization sprays to metal membrane cartridge.
The jet blowback of the inert gas of atomization is attached to the particle dust of metal membrane cartridge another side, passes through indifferent gas
The blowback of body, particle dust is separated with metal membrane cartridge falls into metal film filter bottom, and particle dust passes through bottom
Pipeline enters to be cooled down in particle dust cooling during rolling storehouse, and the particle dust after cooling falls into ash can by pipeline；Ash
Set outlet that particle dust, crude particle dust are carried out cleaning in time below tank and be transported to recovery site.
Beneficial effect：High temperature dust oil gas dust collecting process after the oil shale retorting of the present invention, described dust-laden oil gas comes from
In carbonization furnace.Its dust collecting process step is divided into：One gravitational dust collection, using the mass force of dust by coarse granule powder in oil gas
Dirt is removed.Two realize high-precision filtration by metal film filter；Without multi-cyclone series connection dust, reduce processing and set
It is standby, the consumption of the energy is reduced, the effect of dedusting is improved.
Dust-laden oil gas body in 450 DEG C or so high-temperature gases after oil shale retorting, dust-laden oil gas body from top tangentially
Into gravitational precipitator, the inwall that grit is thrown to deduster cylinder under the influence of centrifugal force slides to cone bottom, so as to remove
Crude particle dust in oil gas.
Metal film high-precision filter is constituted：Gas bag, Venturi tube, metal membrane cartridge, V-type gas distribution grid are compressed, is utilized
Wen's pipe inspection drainage efficiency realizes high-efficient reverse blowing, and purge gas is used as using inert gas.Blowback be by online ash removal instrument control system,
Unbalanced pulse magnetic valve is temporally automatically controlled with pressure difference and sprays back draught, the dust on the outside of filter core is removed, it is online by unit
Blowback.Filter core arrangement interval is uniform, and the area of open space is larger, and uniform larger open space can make the gas stream of rising
Speed is small and uniform, reduces and has been eliminated the dust-contained airflow that the dust of whereabouts is raised again and carries back on filter core.Utilize taper
Gas distributor, makes air-flow more rationally be uniformly filled in whole air cavity, it is ensured that dust can be attached to each filter core table than more uniform
On face, be conducive to blowback, the ash fallen can be made to fall into filter cone bucket by gas distributor in time again.Fall the dust in bottom
It is introduced into the small storehouse of cooling during rolling tentatively to cool down, then is discharged into ash can.
When system overhaul etc. stops for a long time, line replacement is entered to original oil gas with inert gas, guarantor can also be played
The effect of filter core is protected, prevents from pasting film.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is general assembly structural representation；
Fig. 2 is Fig. 1 partial structural diagram；
In Fig. 1,2：In gravitational precipitator 1, metal film filter 2, crude particle dust cooling during rolling storehouse 3, particle dust
Between cooling storehouse 4, ash can 5, inert gas heater 6, inert gas compression set 7, Venturi tube 8, clean oil gas vent 9.
Embodiment
The present invention is described in further detail with embodiment with reference to embodiment：
Embodiment 1
The side of gravitational precipitator 1 sets metal film filter 2, under the outlet of the top of gravitational precipitator 1 and metal film filter 2
Set between portion's import and dust-laden oil and gas import, gravity are set on the outside of pipe-line, the upper oral part of the opposite side of gravitational precipitator 1
The row's of reserving dust-laden oil-gas hole between deduster 1 and dust-laden oil and gas import；The bottom of gravitational precipitator 1 is set to conical bottom, gravity
The lower section of deduster 1 sets crude particle dust cooling during rolling storehouse 3, bottom and the crude particle dust cooling during rolling storehouse 3 of gravitational precipitator 1
Between set high temperature crude particle dust powder transfer pipelines；
The bottom of metal film filter 2 is set to conical bottom, and the lower section of metal film filter 2 sets cold in the middle of particle dust
But storehouse 4, set the dust of high temperature crude particle dust between the bottom and particle dust cooling during rolling storehouse 4 of metal film filter 2
Conveyance conduit；
The lower section of particle dust cooling during rolling storehouse 4 is set in ash can 5, particle dust cooling during rolling storehouse 4, crude particle dust
Between the lower section of cooling storehouse 3 powder transfer pipelines are set between ash can 5 respectively, the lower section of ash can 5 sets dust outlet；
The upper end of metal film filter 2 is set uniform reserved at least three on closure, the closure of metal film filter 2
Set respectively in hole, hole sets inert gas to compress above inert gas compressed gas pipeline, the closure of metal film filter 2
Device 7, the side of inert gas compression set 7 sets inert gas heater (6), inert gas compression set 7 and inert gas
Pipeline is set between heater 6, and the lower section of inert gas compression set 7 sets at least three to export；The sealing of metal film filter 2
Lid lower section sets at least three Venturi tubes 8, sets inert gas to compress respectively between inert gas compression set 7 and Venturi tube 8
Gas pipeline；Clean oil gas vent 9 is set in the top side preformed hole of metal film filter 2, hole；
During to the dust-laden oil gas of carbonization furnace, start gravitational precipitator 1, metal film filter 2 and inert gas and add
Hot device 6, inert gas compression set 7；High temperature dust oil gas enters the dust-laden of gravitational precipitator 1 by pipeline after oil shale retorting
Oil and gas import, enters gravitational precipitator 1 by dust-laden oil and gas import；Gravitational precipitator 1 is by rotary-cut and centrifugal force to dust-laden oil
Thick dust granules in gas are separated；The coarse granule isolated in dust-laden oil gas slips into the bottom of gravitational precipitator 1, by going out
The pipeline of mouth is cooled down into crude particle dust cooling during rolling storehouse 3, enters ash can 5 by pipeline after crude particle dust cooling.
Embodiment 2
The dust-laden oil gas for the powder containing fine grained isolated in dust-laden oil gas is discharged by the outlet of the top of gravitational precipitator 1, is led to
The dust-laden oil gas crossed in the bottom that pipe-line enters metal film filter 2, metal film filter 2 passes through metal when rising
Membrane cartridge, metal membrane cartridge is collected separation to the particle dust in dust-laden oil gas.
Embodiment 3
Particle dust in dust-laden oil gas is by collecting after separation, the oil gas risen in the top of metal film filter 2
For clean oil gas, clean oil gas is entered by the clean oil gas vent 9 of the top side of metal film filter 2 by conveyance conduit
Next workshop.
Embodiment 4
While particle dust in dust-laden oil gas is collected separation, inert gas heater 6 is lazy after heating
Property gas, which is delivered in inert gas compression set 7, to be compressed, and the inert gas heat, compressed enters Venturi tube by pipeline
8, inert gas is discharged by the mouth of pipe of Venturi tube 8, for the inert gas of atomization, the inert gas of atomization sprays to metal membrane cartridge
Penetrate.
Embodiment 5
The jet blowback of the inert gas of atomization is attached to the particle dust of metal membrane cartridge another side, passes through indifferent gas
The blowback of body, particle dust is separated with metal membrane cartridge falls into the bottom of metal film filter 2, and particle dust passes through bottom
Pipeline enters to be cooled down in particle dust cooling during rolling storehouse 4, and the particle dust after cooling falls into ash can 5 by pipeline；
The lower section of ash can 5 sets outlet that particle dust, crude particle dust are carried out cleaning in time and is transported to recovery site.
Claims (5)
1. the production of hydrocarbons technique of high-temperature oil gas dust arrester, high temperature oil after described oil shale retorting after a kind of oil shale retorting
Gas dust arrester is by gravitational precipitator (1), metal film filter (2), crude particle dust cooling during rolling storehouse (3), fine grained powder
Dirt cooling during rolling storehouse (4), ash can (5), inert gas heater (6), inert gas compression set (7), Venturi tube (8), cleaning
Oil gas vent (9) is constituted；It is characterized in that：Gravitational precipitator (1) side sets metal film filter (2), gravitational precipitator (1)
Top is exported sets pipe-line between metal film filter (2) lower inlet, gravitational precipitator (1) opposite side it is upper
Dust-laden oil and gas import is set on the outside of oral area, the row's of reserving dust-laden oil-gas hole between gravitational precipitator (1) and dust-laden oil and gas import；Gravity
The bottom of deduster (1) is set to set crude particle dust cooling during rolling storehouse (3) below conical bottom, gravitational precipitator (1), gravity
The powder transfer pipelines of high temperature crude particle dust are set between the bottom and crude particle dust cooling during rolling storehouse (3) of deduster (1)；
The bottom of metal film filter (2) is set to set cold in the middle of particle dust below conical bottom, metal film filter (2)
But storehouse (4), set high temperature crude particle dust between the bottom and particle dust cooling during rolling storehouse (4) of metal film filter (2)
Powder transfer pipelines；
Ash can (5), particle dust cooling during rolling storehouse (4), crude particle dust are set below particle dust cooling during rolling storehouse (4)
The lower section in cooling during rolling storehouse (3) is set between ash can (5) respectively sets dust outlet below powder transfer pipelines, ash can (5)；
Metal film filter (2) upper end is set uniform reserved at least three on closure, the closure of metal film filter (2)
Set respectively in hole, hole and inert gas pressure is set above inert gas compressed gas pipeline, the closure of metal film filter (2)
Compression apparatus (7), inert gas compression set (7) side set inert gas heater (6), inert gas compression set (7) with
Set between inert gas heater (6) and set at least three to export below pipeline, inert gas compression set (7)；Metal film
At least three Venturi tubes (8) are set below the closure of filter (2), between inert gas compression set (7) and Venturi tube (8)
Inert gas compressed gas pipeline is set respectively；Clean oil gas is set to go out in metal film filter (2) top side preformed hole, hole
Mouth (9)；
During to the dust-laden oil gas of carbonization furnace, start gravitational precipitator (1), metal film filter (2) and inert gas and add
Hot device (6), inert gas compression set (7)；High temperature dust oil gas enters gravitational precipitator (1) by pipeline after oil shale retorting
Dust-laden oil and gas import, by dust-laden oil and gas import enter gravitational precipitator (1)；Gravitational precipitator (1) passes through rotary-cut and centrifugation
Power is separated to the thick dust granules in dust-laden oil gas；The coarse granule isolated in dust-laden oil gas slips into gravitational precipitator (1)
Bottom, cooled down by the pipeline of outlet into crude particle dust cooling during rolling storehouse (3), crude particle dust cooling after pass through
Pipeline enters ash can (5).
2. the production of hydrocarbons technique of high-temperature oil gas dust arrester after a kind of oil shale retorting according to claim 1, it is special
Levy and be：The dust-laden oil gas for the powder containing fine grained isolated in dust-laden oil gas is discharged by outlet above gravitational precipitator (1), is led to
The dust-laden oil gas crossed in the bottom that pipe-line enters metal film filter (2), metal film filter (2) passes through when rising
Metal membrane cartridge, metal membrane cartridge is collected separation to the particle dust in dust-laden oil gas.
3. the production of hydrocarbons technique of high-temperature oil gas dust arrester after a kind of oil shale retorting according to claim 1, it is special
Levy and be：Particle dust in dust-laden oil gas is by collecting after separation, the oil gas risen in metal film filter (2) top
For clean oil gas, clean oil gas is entered by the clean oil gas vent (9) of metal film filter (2) top side by conveyance conduit
Enter to next workshop.
4. the production of hydrocarbons technique of high-temperature oil gas dust arrester after a kind of oil shale retorting according to claim 1, it is special
Levy and be：While particle dust in dust-laden oil gas is collected separation, inert gas heater (6) is lazy after heating
Property gas, which is delivered in inert gas compression set (7), to be compressed, and the inert gas heat, compressed enters Wen by pipeline
Manage (8), inert gas is discharged by the mouth of pipe of Venturi tube (8), for the inert gas of atomization, the inert gas of atomization is to metal film
Filter core sprays.
5. the production of hydrocarbons technique of high-temperature oil gas dust arrester after a kind of oil shale retorting according to claim 1, it is special
Levy and be：The jet blowback of the inert gas of atomization is attached to the particle dust of metal membrane cartridge another side, passes through indifferent gas
The blowback of body, particle dust is separated with metal membrane cartridge falls into metal film filter (2) bottom, and particle dust passes through bottom
Pipeline enter particle dust cooling during rolling storehouse (4) in cooled down, the particle dust after cooling falls into ash by pipeline
Tank (5)；Set outlet that particle dust, crude particle dust are carried out cleaning in time below ash can (5) and be transported to recovery site.
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| CN201710586043.6A CN107158876A (en) | 2017-07-18 | 2017-07-18 | The production of hydrocarbons technique of high-temperature oil gas dust arrester after a kind of oil shale retorting |
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Cited By (3)
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| CN108325369A (en) * | 2018-04-28 | 2018-07-27 | 扬州市顺达科技有限公司 | A kind of working method of the Handling Blast Furnace Granulated Slag circulatory system and its system |
| CN108559560A (en) * | 2018-06-05 | 2018-09-21 | 常州大学 | A kind of dust-extraction unit of flammable explosive gas |
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| CN108325369A (en) * | 2018-04-28 | 2018-07-27 | 扬州市顺达科技有限公司 | A kind of working method of the Handling Blast Furnace Granulated Slag circulatory system and its system |
| CN108325369B (en) * | 2018-04-28 | 2023-11-10 | 扬州市顺达科技有限公司 | Blast furnace granulated slag treatment circulating system and working method thereof |
| CN108559560A (en) * | 2018-06-05 | 2018-09-21 | 常州大学 | A kind of dust-extraction unit of flammable explosive gas |
| US20220401968A1 (en) * | 2021-06-22 | 2022-12-22 | Foremost Equipment LP | Multicyclone separator |
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