CN110452725A - A kind of oil-containing solids integrated treatment and recovery system and method - Google Patents
A kind of oil-containing solids integrated treatment and recovery system and method Download PDFInfo
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- CN110452725A CN110452725A CN201910852967.5A CN201910852967A CN110452725A CN 110452725 A CN110452725 A CN 110452725A CN 201910852967 A CN201910852967 A CN 201910852967A CN 110452725 A CN110452725 A CN 110452725A
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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
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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
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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
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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
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
- C10B57/045—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing mineral oils, bitumen, tar or the like or mixtures thereof
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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
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The present invention discloses a kind of oil-containing solids integrated treatment and recovery system and method, belong to unconventional energy resource using technology and dangerous waste processing technology field, including sequentially connected feedstock pre-processing system, reaction pyrolysis system, dust pelletizing system, residual neat recovering system and washing, purifying separation system；The washing, purifying separation system includes sequentially connected scrubbing tower, condenser, separator and electrostatic tar collecting apparatus, the scrubbing tower is connect with the residual heat system, the wash tower bottoms are connected with the first product oil discharge pipe, the separator is connected with the second product oil discharge pipe, and the electrostatic tar collecting apparatus is connected with purification gas discharge pipe.Present invention process process is simple, high treating effect, and energy regenerating utilization rate is high, not only can utmostly oil recovery and heat, and there is no secondary pollution, subsequent processing burden is low.
Description
Technical field
The present invention relates to unconventional energy resource to utilize technology and dangerous waste processing technology field, in particular to a kind of oil-containing solids are comprehensive
Close processing and recovery system and method.
Background technique
The case where whole world is increasing to the demand of the energy at present, and China's energy resource structure belongs to few oil, few gas, more coals,
The petroleum resources rapid growth far from enough for meeting its demand, so the exploitation of unconventional resource is even more important.
Oil-sand, which refers to, have been exposed or the sandstone of the heavy residual oil-impregnation of near surface, is asphalt-base crude oil in migration process
In lose the product after light components, the sometimes referred to as sand or sand of a kind of natural oil after the evolution of dipping light fraction part
Rock can be used to extract heavy oil or pitch.Oil-sand is good unconventional petroleum resources, and China's oil sands reserves are abundant, oil-sand
Oil in place is about 59.7 hundred million tons, and wherein allowable exploitation is 22.58 hundred million tons.Furthermore oil shale also belongs to non-conventional oil resource,
China's oil shale resources are abundant, and technically recoverable resources are about 240,000,000,000 tons, and industrialization potential is huge.
On the other hand, with coal chemical industry fast development, various dregs of fat greasy filth are generated, there are also with Oil Generation yield and consumption
Amount improves, and oil field oil sludge enters pollution problem caused by soil and gets worse.Dregs of fat greasy filth (oil sludge) is listed in dangerous waste product,
Processing requirement is high, such as deals with improperly, directly affects process units.
It is mature and be used widely that shale oil technology is extracted with blocky oil shale, but fine granularity oil-sand or oil
Shale mentions oil processing technology, still in research and development.China's the relevant technologies aggregate level is low, and there is presently no oil-sand treatment process
Device.Furthermore dregs of fat greasy filth (oil sludge) belongs to dangerous waste, faces same problem.Processing for oil-containing solids, pyrolytic process
Advantage is more, and pyrolytic process refers to that isolation air is perhaps full of under conditions of inert gas using indirect or direct-fired
Method makes pretreated oil-containing solids heat resolve, oil can be obtained and using gas.Pyrolytic process passes through energy regenerating system
System reduces total energy consumption, and relatively other technology separation are thoroughly, easy to industrialized production, pollution-free, can utmostly return
Receive oil product.So had received widespread attention about pyrolytic process, but pyrolytic process and immature at present, it is primarily present following
Problem: washing, purifying uses ammonium hydroxide, and washing amount is big, and the waste water of generation is more, and subsequent wastewater treatment is complicated, water-oil separating treating capacity
Greatly；It does not recycle or the only high product heat of partially recycled pyrolysis gas；The characteristics of not being directed to pyrolysis gas carries out product separation, oil
The product rate of recovery is low.
Summary of the invention
The present invention provides a kind of oil-containing solids integrated treatment and recovery system and method, and it is comprehensive to solve existing oil-containing solids
The low problem of processing system energy regenerating utilization rate and secondary pollution problem.
In order to solve the above technical problems, technical solution provided by the invention are as follows:
A kind of oil-containing solids integrated treatment and recovery system, including sequentially connected feedstock pre-processing system, reaction pyrolysis
System, dust pelletizing system, residual neat recovering system and washing, purifying separation system；The feedstock pre-processing system includes crushing device
And drying device, the outlet of drying device are connected with pyrolysis system is reacted；The dust pelletizing system includes high temperature rotation interconnected
Wind deduster and hi-temp hi-effective deduster, the high-temperature cyclone dust extractor are connect with the reaction pyrolysis system, and the high temperature is high
Effect deduster is connect with the residual neat recovering system；The washing, purifying separation system includes sequentially connected scrubbing tower, condensation
Device, separator and electrostatic tar collecting apparatus, the scrubbing tower are connect with the residual heat system；The wash tower bottoms are connected with first
Product oil discharge pipe, the separator are connected with the second product oil discharge pipe, and the electrostatic tar collecting apparatus is connected with purification gas
Discharge pipe.
Wherein it is preferred to which the drying device is the drying device of converter or fluidized bed form.
Wherein it is preferred to which the reaction pyrolysis system is that internal heat type heats or external-heat heats.
Wherein it is preferred to which the high-temperature cyclone dust extractor is the level-one or secondary ash collector using inner lining structure, the height
Warm high-efficiency dust remover is tube type dust removing or electric precipitator.
Wherein it is preferred to which the residual neat recovering system is the waste heat boiler using vertical shell-and-tube heat exchanger.
Wherein it is preferred to which the condenser is using air cooler or air cooler and water cooler or air cooler, water cooler and low
Warm condenser.
The present invention simultaneously provides a kind of oil-containing solids integrated treatment and recovery method, includes the following steps:
(1) reaction pyrolysis: oil-containing solids enter reaction pyrolysis system by feed system, and reaction temperature controls 300~
500 DEG C, reaction pressure 100-2000Pa, reaction time 0.5-2h；
(2) dedusting: the pyrolysis gas for reacting generation enters dust pelletizing system dedusting；
(3) waste heat recycles: the pyrolysis gas after dedusting enters residual neat recovering system recovery waste heat；
(4) washing, purifying separates: the gas temperature come out from waste heat boiler, into scrubbing tower, is used at 180~300 DEG C
The self-produced oil of system is washing medium, and wash temperature is 10~70 DEG C, enters condenser system by the gas that scrubbing tower upper section comes out,
Condenser system adds sub-cooled form using air-cooled or air-cooled plus water cooling or air-cooled, water cooling, is cooled to 10~50 DEG C of temperature, cooling
Under grease enter separator, separator is different according to oil product is generated, if 1 grade or 2 grades, oil product a part after separation is made
Enter scrubbing tower for washing medium, a part enters product storage tank；Cooling gas enters electrostatic tar collecting apparatus, electrical tar precipitator root
1~2 grade of setting is required according to purification, purified gas enters downstream unit.The washing medium of scrubbing tower is wash tower bottoms row
The product oil of product oil and separator discharge out.
Wherein it is preferred to include the steps that broken and drying before the reaction pyrolysis step, if raw material is graininess,
It is 0~30mm that raw material is crushed to particle size range by the destruction step；The drying steps are dry to containing water quality by oil-containing solids
Amount is 2~10%, and oil-containing solids temperature is at 100~180 DEG C after drying.
Wherein it is preferred to which the oil-containing solids are oil shale, oil-sand, the dregs of fat or oil sludge.
Technical solution provided by the invention has the advantages that compared with prior art
Present invention process process is simple, high treating effect, and energy regenerating utilization rate is high, not only can utmostly oil recovery
And heat, and there is no secondary pollution, subsequent processing burden is low.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram of oil-containing solids integrated treatment of the invention and recovery system；
In figure, 1. feedstock pre-processing systems, 1-1. crushing device, 1-2. drying device, 2. reaction pyrolysis systems, 3. dedustings
System, 3-1. high-temperature cyclone dust extractor, 3-2. hi-temp hi-effective deduster, 4. residual neat recovering systems, 5. washing, purifying separation systems,
5-1. scrubbing tower, 5-2. condenser, 5-3. separator, 5-4. electrostatic tar collecting apparatus, 5-5. the first product oil discharge pipe, 5-6.
Two product oil discharge pipes, 5-7. purification gas discharge pipe.
Specific embodiment
Below in conjunction with the specific embodiment of the invention, technical solution of the present invention is clearly and completely described, is shown
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
As shown in Figure 1, the present embodiment provides a kind of oil-containing solids integrated treatment and recovery system, including it is sequentially connected anti-
Answer pyrolysis system 2, dust pelletizing system 3, residual neat recovering system 4 and washing, purifying separation system 5；Dust pelletizing system 3 includes being connected with each other
High-temperature cyclone dust extractor 3-1 and hi-temp hi-effective deduster 3-2, high-temperature cyclone dust extractor 3-1 with reaction pyrolysis system 2 connect,
Hi-temp hi-effective deduster 3-2 is connect with residual neat recovering system 4；Washing, purifying separation system 5 includes sequentially connected scrubbing tower 5-
1, condenser 5-2, separator 5-3 and electrostatic tar collecting apparatus 5-4, scrubbing tower 5-1 are connect with residual heat system, the bottom scrubbing tower 5-1
It is connected with the first product oil discharge pipe 5-5, separator 5-3 and is connected with the second product oil discharge pipe 5-6, electrostatic tar collecting apparatus 5-4
It is connected with purification gas discharge pipe 5-7.
It wherein, further include feedstock pre-processing system 1, feedstock pre-processing system 1 is by crushing device 1-1 and drying device 1-2
Composition, drying device 1-2 are the drying device 1-2 of converter or fluidized bed form, and the discharge port of drying device 1-2 is pyrolyzed with reacting
System 2 connects.
It reacts pyrolysis system 2 and uses rotary furnace reaction system, react the difference that heating method is required according to principle and technique,
Internal heat type or external-heat can be used.Heat medium used is flue gas or self-produced available gas.
Wherein, dust pelletizing system 3 is for handling upstream pyrolysis gas, and according to gas temperature and dustiness, system is equipped with height
Warm cyclone dust collectors 3-1 and hi-temp hi-effective deduster 3-2.Wherein high-temperature cyclone dust extractor 3-1 can set level-one or second level, use
Inner lining structure.Screen pipe or electric precipitator can be used in wherein hi-temp hi-effective deduster 3-2.
Above-mentioned residual neat recovering system 4, for recycling the energy of upstream pyrolysis gas, byproduct steam.Waste heat boiler uses
Vertical shell-and-tube heat exchanger, in tube side, by-product low-pressure steam send personal to other workshop sections for needing heat tracing pyrolysis gas.
Wherein, air cooler or air cooler and water cooler or air-cooled can be used according to wash temperature difference in condenser 5-2
Device, water cooler and low-temperature condenser 5-2.
The present embodiment simultaneously provides a kind of oil-containing solids integrated treatment and recovery method, includes the following steps:
(1) raw material is the waste oil residue that gas liquor separation generates；
(2) raw material drying: using converter drying, waste oil residue is dry to being 3~5% containing water quality, and oil-containing is solid after drying
Temperature is at 150~180 DEG C；
(3) reaction pyrolysis: oil-containing solids enter reaction pyrolysis system 2 by feed system, and reaction uses internal heat type, reaction
Temperature is controlled at 400~450 DEG C, reaction pressure 300Pa, reaction time 1.5h；
(4) dedusting: the pyrolysis gas for reacting generation enters 3 dedusting of dust pelletizing system；
(5) waste heat recycles: the pyrolysis gas after dedusting enters 4 recovery waste heat of residual neat recovering system；
(6) washing, purifying separates: the gas temperature come out from waste heat boiler, into scrubbing tower 5-1, is adopted at 180~200 DEG C
With self-produced oil wash, wash temperature is 20~40 DEG C, enters condenser system, condensed system by the gas that scrubbing tower 5-1 upper section comes out
System adds sub-cooled form using water cooling, is cooled to 20 DEG C of temperature, the grease under cooling enters separator 5-3, and separator sets 2
Grade, for oil product a part after point separation to scrubbing tower as washing medium, a part enters product oil tank.Cooling gas enters
Electrostatic tar collecting apparatus 5-4, electrical tar precipitator are arranged 1 grade, and purified gas enters downstream unit.
In another embodiment of the present invention, it using oil-sand as raw material, carries out pyrolysis processing and recycles its oil, including following steps
It is rapid:
Raw material is little particle oil-sand, glossy type, by feedstock pre-processing system 1, after being crushed particle size range in 5~10mm,
Dry to use fluidized forms, its water content is 5% after drying, then enters rotary reaction furnace by feed system, according to raw material
Characteristic, reaction use external-heat, and reaction temperature is controlled at 500 DEG C, reaction time 1h, reaction pressure 400Pa.After reaction
High-temperature gas enters dust pelletizing system 3, according to raw material dustiness, 2 grades of high temperature cyclone separator 3-1 is arranged and 1 grade of hi-temp hi-effective removes
Dirt device 3-2 removes its 99% dirt after dust pelletizing system 3, into residual neat recovering system 4, from the gas of waste heat boiler out
Temperature enters washing, purifying separation system 5 at 200~220 DEG C later.It is introduced into scrubbing tower 5-1, scrubbing tower 5-1 uses 2 segmentations
Washing is all made of the oil wash of recycling, and wash temperature is 60~70 DEG C, extremely by the oil product a part of scrubbing tower 5-1 lower section out
Scrubbing tower enters product oil tank as washing medium, a part.Condensed system is entered by the gas that scrubbing tower 5-1 upper section comes out
System, condenser system use air-cooled form, are cooled to 40 DEG C of temperature, gas enters electrostatic tar collecting apparatus 5-4, electrical tar precipitator setting
Two-stage, purified gas are directly entered fuel system, provide heat source for pyrolytic reaction system.Liquid under condensation enters separation
Device 5-3, separator set level-one, the oil product isolated, and as washing medium, a part enters product oil and stores up a part to scrubbing tower
Tank.
The process has effectively recycled oily in oil-sand, oil recovery rate 85%, and the heat that the gas of generation provides makes for reaction
With without being additionally provided heat.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of oil-containing solids integrated treatment and recovery system, it is characterised in that including sequentially connected feedstock pre-processing system,
React pyrolysis system, dust pelletizing system, residual neat recovering system and washing, purifying separation system；The feedstock pre-processing system includes
Crushing device and drying device, the outlet of drying device are connected with pyrolysis system is reacted；The dust pelletizing system includes being connected with each other
High-temperature cyclone dust extractor and hi-temp hi-effective deduster, the high-temperature cyclone dust extractor connect with the reaction pyrolysis system, institute
Hi-temp hi-effective deduster is stated to connect with the residual neat recovering system；The washing, purifying separation system includes sequentially connected washing
Tower, condenser, separator and electrostatic tar collecting apparatus, the scrubbing tower are connect with the residual heat system, and the wash tower bottoms connect
It is connected to the first product oil discharge pipe, the separator is connected with the second product oil discharge pipe, and the electrostatic tar collecting apparatus is connected with
Purification gas discharge pipe.
2. a kind of oil-containing solids integrated treatment according to claim 1 and recovery system, it is characterised in that: the dry dress
It is set to the drying device of converter or fluidized bed form.
3. a kind of oil-containing solids integrated treatment according to claim 1 and recovery system, it is characterised in that: the reaction heat
Solution system is that internal heat type heats or external-heat heats.
4. a kind of oil-containing solids integrated treatment according to claim 1 and recovery system, it is characterised in that: the high temperature rotation
Wind deduster is the level-one or secondary ash collector using inner lining structure, and the hi-temp hi-effective deduster is tube type dust removing or electric precipitation
Device.
5. a kind of oil-containing solids integrated treatment according to claim 1 and recovery system, it is characterised in that: the waste heat returns
Receipts system is the waste heat boiler using vertical shell-and-tube heat exchanger.
6. a kind of oil-containing solids integrated treatment according to claim 1 and recovery system, it is characterised in that: the condenser
Using air cooler or air cooler and water cooler or air cooler, water cooler and low-temperature condenser.
7. a kind of oil-containing solids integrated treatment and recovery method, it is characterised in that include the following steps:
(1) reaction pyrolysis: oil-containing solids enter reaction pyrolysis system by feed system, and reaction temperature is controlled 300~500
DEG C, reaction pressure 100-2000Pa, reaction time 0.5-2h；
(2) dedusting: the pyrolysis gas for reacting generation enters dust pelletizing system dedusting；
(3) waste heat recycles: the pyrolysis gas after dedusting enters residual neat recovering system recovery waste heat；
(4) washing, purifying separates: the gas temperature come out from waste heat boiler is at 180~300 DEG C, into scrubbing tower, using system
Self-produced oil is washing medium, and wash temperature is 10~70 DEG C, enters condenser system by the gas that scrubbing tower upper section comes out, condenses
System adds sub-cooled form using air-cooled or air-cooled plus water cooling or air-cooled, water cooling, is cooled to 10~50 DEG C of temperature, after cooling
Grease enters separator, and separator is different according to oil product is generated, if 1 grade or 2 grades, oil product a part after separation is as washing
Medium enters scrubbing tower, and a part enters product storage tank；Cooling gas enters electrostatic tar collecting apparatus, and electrical tar precipitator is according to purification
It is required that 1~2 grade of setting, purified gas enters downstream unit.
8. a kind of oil-containing solids integrated treatment according to claim 7 and recovery method, it is characterised in that: the reaction heat
Include the steps that broken and drying before solution step, it is 0~30mm that raw material is crushed to particle size range by the crushing device；It is described
Oil-containing solids drying to water content is 2~10% by drying steps, and oil-containing solids temperature is at 100~180 DEG C after drying.
9. a kind of oil-containing solids integrated treatment according to claim 8 and recovery method, it is characterised in that: the oil-containing is solid
Body is oil shale, oil-sand, the dregs of fat or oil sludge.
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| CN2019106062998 | 2019-07-05 | ||
| CN201910606299.8A CN110205151A (en) | 2019-07-05 | 2019-07-05 | A kind of oil-containing solids integrated treatment and recovery system and method |
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| CN201910852967.5A Pending CN110452725A (en) | 2019-07-05 | 2019-09-10 | A kind of oil-containing solids integrated treatment and recovery system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112708432A (en) * | 2020-12-08 | 2021-04-27 | 陕西德信祥能源科技有限公司 | Novel solid heat carrier riser oil recovery method |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112708432A (en) * | 2020-12-08 | 2021-04-27 | 陕西德信祥能源科技有限公司 | Novel solid heat carrier riser oil recovery method |
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