CN109626782A - Oily sludge catalytic pyrolysis system and oily sludge catalytic pyrolysis treatment process - Google Patents
Oily sludge catalytic pyrolysis system and oily sludge catalytic pyrolysis treatment process Download PDFInfo
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- CN109626782A CN109626782A CN201910117810.8A CN201910117810A CN109626782A CN 109626782 A CN109626782 A CN 109626782A CN 201910117810 A CN201910117810 A CN 201910117810A CN 109626782 A CN109626782 A CN 109626782A
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- oily sludge
- reaction unit
- catalytic pyrolysis
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- light components
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- 239000010802 sludge Substances 0.000 title claims abstract description 68
- 238000007233 catalytic pyrolysis Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000008569 process Effects 0.000 title claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 102
- 239000012159 carrier gas Substances 0.000 claims abstract description 42
- 238000011084 recovery Methods 0.000 claims abstract description 23
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 19
- 238000009833 condensation Methods 0.000 claims abstract description 9
- 230000005494 condensation Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 24
- 239000003054 catalyst Substances 0.000 claims description 18
- 238000000197 pyrolysis Methods 0.000 claims description 11
- 238000004064 recycling Methods 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000004939 coking Methods 0.000 claims description 4
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims 1
- 238000010992 reflux Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 2
- 238000010926 purge Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Abstract
The present invention provides a kind of oily sludge catalytic pyrolysis system and oily sludge catalytic pyrolysis treatment process, is related to changing rejected material to useful resource process field.Oily sludge catalytic pyrolysis system includes carrier gas device, the first reaction unit, the second reaction unit and condensing unit.First reaction unit is for being pyrolyzed to generate oil vapour oily sludge.Second reaction unit is for receiving oil vapour and oil vapour being made to carry out catalysis reaction, and to promote, heavy component flows back and light components are recovered.Condensing unit is used for condensed light component.Oily sludge catalytic pyrolysis treatment process includes: to be pyrolyzed to oily sludge, to generate oil vapour；Oil vapour is set to carry out catalysis reaction, heavy component flows back and light components are recovered to promote；Heavy component reflux, is pyrolyzed again；Condensation process is carried out to light components, with oil recovery.This oily sludge catalytic pyrolysis system and oily sludge catalytic pyrolysis treatment process can be improved the quality of oil recovery.
Description
Technical field
The present invention relates to changing rejected material to useful resource process fields, in particular to a kind of oily sludge catalytic pyrolysis system
And oily sludge catalytic pyrolysis treatment process.
Background technique
Oily sludge is one of oil field special type solid waste, and pollution can not only be reached by carrying out pyrolysis processing to oily sludge
Object it is innoxious, while valuable oily resource can also be recycled.But traditional oily sludge pyrolytic technique recycling oil quality is not high.
Summary of the invention
The purpose of the present invention includes providing a kind of oily sludge catalytic pyrolysis system and oily sludge catalytic pyrolysis processing work
Skill can be improved the quality of oil recovery.
The embodiment of the present invention is achieved in that
A kind of oily sludge catalytic pyrolysis system, the catalytic pyrolysis for oily sludge is with oil recovery comprising:
Carrier gas device for reacting front and back blow device to avoid system jams and coking, and is also used to reaction process
Middle carrier gas；
First reaction unit, the first reaction unit are connected to carrier gas device, the first reaction unit be used for oily sludge into
Row pyrolysis is to generate the oil vapour comprising heavy component and light components；
Second reaction unit, the second reaction unit are connected to the first reaction unit, and the second reaction unit is for making oil vapour
Catalysis reaction is carried out, heavy component is back to the first reaction unit and light components enter subsequent processing and returned in turn to promote
It receives；
Condensing unit, condensing unit are connected to the second reaction unit, and condensing unit is used for condensed light component.
Further, above-mentioned first reaction unit includes that fixed bed reactors add with the heat preservation for being sheathed on fixed bed reactors
Hot stove, fixed bed reactors are connected to carrier gas device and the second reaction unit simultaneously, and fixed bed reactors are used for oily sludge
It is pyrolyzed, heat-insulating heating furnace is for heating fixed bed reactors.
Further, above-mentioned second reaction unit includes paste state bed reactor, and paste state bed reactor is connected to first simultaneously
Reaction unit and condensing unit, paste state bed reactor are used to receive oil vapour and react oil vapour under the action of catalyst, with
Promote that heavy component is back to the first reaction unit and light components enter condensing unit and then are recovered.
Further, above-mentioned oily sludge catalytic pyrolysis system further includes temperature control equipment, temperature control equipment setting
In the first reaction unit, temperature control equipment is used to control, show, monitor the temperature and heating rate of the first reaction unit.
Further, above-mentioned carrier gas device includes the gas cylinder, flowmeter and check valve being sequentially communicated, and check valve is connected to
One reaction unit.
Further, above-mentioned condensing unit includes condenser and the exhaust-valve for being connected to condenser, and condenser is connected to
Two reaction units, condenser carry out oily recycling for condensed light component, and exhaust-valve is for discharging extra not solidifying gas.
A kind of oily sludge catalytic pyrolysis treatment process comprising: oily sludge is pyrolyzed, to generate oil vapour；
Oil vapour is set to carry out catalysis reaction, heavy component flows back and light components are recovered to promote；Heavy component reflux, it is hot again
Solution；Condensation process is carried out to light components, with oil recovery.
Further, pyrolysis temperature when above-mentioned oily sludge is pyrolyzed is 450-550 DEG C.
Further, the catalyst that above-mentioned catalysis reaction uses is semicoke base catalyst, Fe-Ni catalyst or mineral
Matter catalyst.
Further, above-mentioned condensation process is carried out by recirculated cooling water.
The beneficial effect of the embodiment of the present invention includes:
Oily sludge catalytic pyrolysis system is used for the catalytic pyrolysis of oily sludge with oil recovery comprising: carrier gas device is used
In reaction front and back blow device to avoid system jams and coking, and it is also used to carrier gas in reaction process；First reaction unit,
First reaction unit is connected to carrier gas device, and the first reaction unit is used to be pyrolyzed oily sludge to generate comprising heavy group
Divide the oil vapour with light components；Second reaction unit, the second reaction unit are connected to the first reaction unit, the second reaction unit
For receiving oil vapour and oil vapour being made to carry out catalysis reaction, to promote heavy component to be back to the first reaction unit and lightweight
Component enters subsequent processing and then is recovered；Condensing unit, condensing unit are connected to the second reaction unit, and condensing unit is for cold
Solidifying light components.Oily sludge catalytic pyrolysis treatment process includes: to be pyrolyzed to oily sludge, to generate oil vapour；Make oil
Steam carries out catalysis reaction, and to promote, heavy component flows back and light components are recovered；Heavy component reflux, is pyrolyzed again；
Condensation process is carried out to light components, with oil recovery.This oily sludge catalytic pyrolysis system and the processing of oily sludge catalytic pyrolysis
Technique, which passes through, makes the oil vapour generated after pyrolysis carry out catalysis reaction to promote heavy component reflux and light components to be recovered.
Oil recovery only includes light components, so that the quality of oil recovery is effectively promoted, while heavy component flows back and is pyrolyzed again,
The rate of recovery of light components can be effectively improved.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of oily sludge catalytic pyrolysis system in the embodiment of the present invention；
Fig. 2 is catalytic pyrolysis process flow chart in the embodiment of the present invention.
Icon: 100- oily sludge catalytic pyrolysis system；110- carrier gas device；111- gas cylinder；The first valve of 112-；
113- flowmeter；The second valve of 114-；115- check valve；116- pressure reducing valve；117- first pressure gauge；119- second is pressed
Power table；120- pneumatic filter；122- bypass valve；The first reaction unit of 130-；132- fixed bed reactors；134- is protected
Warm heating furnace；136- third pressure gauge；The second reaction unit of 150-；152- paste state bed reactor；170- condensing unit；
172- condenser；174- exhaust-valve；175- first-stage condenser；176- secondary condenser；177- three-level condenser；180-
Temperature control equipment；182- temperature controller；184- digital display instrument；186- alarm.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "outside" is base
In orientation or positional relationship shown in the drawings or the invention product using when the orientation or positional relationship usually put, only
It is that for the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " the
Two ", " third " etc. is only used for distinguishing description, is not understood to indicate or imply relative importance.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
First embodiment
Fig. 1 is please referred to, the present embodiment provides a kind of oily sludge catalytic pyrolysis systems 100, the catalysis for oily sludge
Pyrolysis is to oil recovery.Oily sludge catalytic pyrolysis system 100 is anti-including carrier gas device 110, the first reaction unit 130, second
Answer device 150 and condensing unit 170.Carrier gas device 110 for reacting front and back blow device to avoid system jams and coking,
And it is also used to carrier gas in reaction process.First reaction unit 130 is connected to carrier gas device 110, and the first reaction unit 130 is used for
Oily sludge is pyrolyzed to generate the oil vapour for including heavy component and light components.Second reaction unit 150 is connected to
First reaction unit 130, the second reaction unit 150 is for receiving oil vapour and oil vapour being made to carry out catalysis reaction, to promote weight
Matter component backflow to the first reaction unit 130 and light components enters subsequent processing and then is recovered.Condensing unit 170 is connected to
In the second reaction unit 150, condensing unit 170 is for condensing the light components.
Wherein, carrier gas device 110 includes gas cylinder 111, flowmeter 113 and the check valve 115 being sequentially communicated, check valve 115
It is connected to the first reaction unit 130.During the reaction, carrier gas device 110 is used for carrier gas, and carrier gas reacts with oily sludge
To improve oil yield.
Specifically, carrier gas device 110 further includes the first valve 112 and the second valve 114.First valve 112 is set to gas
Between bottle 111 and flowmeter 113, the first valve 112 is connected to gas cylinder 111 and flowmeter 113 simultaneously.The setting of second valve 114
Between flowmeter 113 and check valve 115, the second valve 114 is connected to flowmeter 113 and check valve 115 simultaneously.First valve
112 and second valve 114 be respectively arranged at the upstream and downstream of flowmeter 113, for the gas flow in control system, simultaneously
It can play a protective role to flowmeter 113.
It is excessively high for the gas pressure that avoids enter into system, pressure reducing valve 116 is set between gas cylinder 111 and the first valve 112, together
When pressure reducing valve 116 entrance and exit first pressure gauge 117 and second pressure gauge 119 is respectively set, with the gas of detection system
Pressure condition.In addition, pneumatic filter 120 is arranged between second pressure gauge 119 and the first valve 112, to prevent from containing in gas
There is particulate matter that device is caused to block.
In addition, carrier gas device 110 further includes bypass valve 122, bypass valve 122 is connected to gas cylinder 111 and check valve simultaneously
115.Specifically, the entrance of bypass valve 122 is connected to pneumatic filter 120, and the outlet of bypass valve 122 is in check valve 115.
When carrier gas device 110 purges the device in whole system, without detecting to flow, air-flow goes out from gas cylinder 111
Hair enters the first reaction unit 130 through check valve 115 directly through after bypass valve 122.
First reaction unit 130 includes fixed bed reactors 132 and the heat-insulating heating furnace for being sheathed on fixed bed reactors 132
134, fixed bed reactors 132 are connected to carrier gas device 110 and the second reaction unit 150 simultaneously, and fixed bed reactors 132 are used for
Oily sludge is pyrolyzed.Fixed bed reactors 132 are provided with third pressure gauge 136, to read in fixed bed reactors 132
Pressure parameter.Heat-insulating heating furnace 134 is for heating fixed bed reactors 132.In the present embodiment, heat-insulating heating furnace 134 is
High-temperature ceramic fibre adiabatic heat-insulation heating furnace.
Second reaction unit 150 includes paste state bed reactor 152, and paste state bed reactor 152 is connected to the first reaction simultaneously
Device 130 and condensing unit 170.Paste state bed reactor 152 is for receiving oil vapour and keeping oil vapour anti-under the action of catalyst
It answers, to promote, heavy component is back to the first reaction unit 130 and light components enter condensing unit 170 and are recovered in turn.
Specifically, paste state bed reactor 152 is connected to fixed bed reactors 132, setting catalysis in 152 reactor of paste state bed reactor
Agent.Oily sludge is pyrolyzed in fixed bed reactors 132 generates oil vapour, includes light components and heavy component in oil vapour.
Oil vapour carries out catalysis reaction after entering paste state bed reactor 152, to promote heavy component to flow back, light components recycling.It can be with
Understand, in other embodiments, the second reaction unit 150 is also possible to load the fixed bed reactors of catalyst, can also expire
The requirement of foot certain production light components and heavy component.
Condensing unit 170 includes condenser 172 and the exhaust-valve 174 for being connected to condenser 172.Condenser 172 is connected to
Second reaction unit 150, condenser 172 include the first-stage condenser 175 being sequentially communicated, secondary condenser 176, three-level condenser
177, first-stage condenser 175 is connected to the second reaction unit 150, and condenser 172 is for condensed light component to carry out oily recycling.
Exhaust-valve 174 is set to three-level condenser 177, and exhaust-valve 174 is for discharging extra not solidifying gas.In the present embodiment, it condenses
Device 172 cools down light components by recirculated cooling water step by step.
Oily sludge catalytic pyrolysis system 100 further includes temperature control equipment 180.Temperature control equipment 180 is set to
One reaction unit 130, temperature control equipment 180 are used to control, show, monitor the temperature and heating speed of the first reaction unit 130
Rate.Temperature control equipment 180 includes temperature controller 182, digital display instrument 184 and alarm 186, temperature controller 182, digital display instrument 184 and report
Alert device 186 is connected to the first reaction unit 130.Temperature controller 182 is connected to heat-insulating heating furnace 134, is added by control heat preservation
The heating temperature and heating rate of hot stove 134 for control the first reaction unit 130 temperature, digital display instrument 184 and alarm
Device 186 is connected to fixed bed reactors 132, and digital display instrument 184 is used to monitor and show the temperature and heating of the first reaction unit 130
Rate, alarm 186 are used in monitoring temperature be more than preset temperature alarm.In the present embodiment, temperature control equipment 180 is set
It is placed in control cabinet.
The working principle and the course of work of oily sludge catalytic pyrolysis system 100 are as follows:
Firstly, starting carrier gas device 110, purges oily sludge catalytic pyrolysis system 100.Close the first valve
112, the gas in gas cylinder 111 enters the pipeline of carrier gas device 110, after gas is filtered by pneumatic filter 120, through bypass valve
122 reach check valve 115, subsequently into the first reaction unit 130, the second reaction unit 150 and condensing unit 170.Work as load
When the loine pressure of device of air 110 is excessively high, logical pressure reducing valve 116 is adjusted.In purge, pass through 117 He of first pressure gauge
The gas pressure of the reading carrier gas device 110 of second pressure gauge 119.
Then, carrier gas device 110 is closed after completing purging, starts to be pyrolyzed oily sludge and be catalyzed.Greasy dirt will be contained
After mud sample product are fitted into fixed bed reactors 132, the power supply of whole system is opened, opens the first valve 112.It is again started up carrier gas
Device 110, and it is adjusted to suitable carrier gas technological parameter.Gas successively passes through first pressure gauge 117, pressure reducing valve 116, at this time
Two pressure gauges 119, pneumatic filter 120, the first valve 112, flowmeter 113, the second valve 114, check valve 115, then into
Enter fixed bed reactors 132.Fixed bed reactors 132 are heated using heat-insulating heating furnace 134.During heating, by temperature control
Device 182 carries out heating temperature and heating rate control.Monitored by digital display instrument 184 and show the first reaction unit 130 temperature and
Heating rate.When monitoring temperature is more than preset temperature, alarm 186 is alarmed.It is anti-that fixed bed is read by third pressure gauge 136
Answer the pressure in device 132.In entire pyrolytic process, system always with carrier gas, carrier gas in fixed bed reactors 132 with contain
Greasy dirt reacts.By choosing suitable type carrier gases and flow parameter, while suitable heating rate is controlled, it can
Effectively improve oil yield.
Paste state bed reactor 152, which is connected in fixed bed reactors 132 and paste state bed reactor 152, is arranged catalyst.Contain
The oil vapour that greasy dirt high temperature pyrolysis generates enters paste state bed reactor 152.Carrier gas also enters paste state bed reactor 152, carrier gas
Oil vapour can be promoted to be sufficiently mixed, contact with catalyst.Oil vapour occurs in paste state bed reactor 152 with catalyst anti-
It answers, heavy component is promoted to flow back, light components recycling.On the one hand, light components enter condensing unit 170, successively pass through level-one
Condenser 175, secondary condenser 176, three-level condenser 177 cool down light components by recirculated cooling water, most step by step
Recycling oil product eventually.Oil recovery is light components, and the quality of oil recovery is effectively promoted.Not solidifying gas passes through 174 row of exhaust-valve
Out.On the other hand, the heavy component in oil vapour condenses rapidly, flows back into fixed bed reactors 132, carries out hot again
Solution to effectively improve the rate of recovery of oil, while also reducing pyrolysis reaction temperature.
Finally, carrying out gas purging, blowing out cooling again after catalytic pyrolysis.
Oily sludge catalytic pyrolysis system 100 by the second reaction unit 150 of setting, make after pyrolysis the oil vapour that generates into
Row catalysis reaction is to promote heavy component to flow back, light components recycling.Oil recovery only includes light components, thus the product of oil recovery
Matter is effectively promoted, and heavy component is back to fixed bed reactors 132 and is pyrolyzed again, by choosing suitable type carrier gases
And flow parameter, while suitable heating rate is controlled, the rate of recovery of oil can be effectively improved.
Second embodiment
Referring to figure 2., the present embodiment provides a kind of oily sludge catalytic pyrolysis treatment process comprising: to oily sludge
It is pyrolyzed, to generate oil vapour；Oil vapour is set to carry out catalysis reaction, to generate light components and heavy component；Heavy component
Reflux, is pyrolyzed again；Condensation process is carried out to light components, with oil recovery.
In the present embodiment, pyrolysis temperature when oily sludge is pyrolyzed is 450-550 DEG C.Catalysis reaction uses
Catalyst is semicoke base catalyst, Fe-Ni catalyst or mineral matter agent.Heating rate is 3 DEG C/min-6 DEG C/min,
Carrier gas is nitrogen, and nitrogen carrier gas flow is in 70-110ml/min.In other embodiments, other suitable species can also be used
Catalyst and carrier gas.Condensation process is carried out by recirculated cooling water.
Oily sludge catalytic pyrolysis treatment process passes through the oil vapour after making pyrolysis and catalysis reaction occurs, to promote heavy group
Divide reflux, light components recycling.Light components form oil recovery after condensing, and effectively improve the quality of oil recovery；Heavy component
It flows back and is pyrolyzed again, by choosing suitable type carrier gases and flow parameter, while controlling suitable heating rate, it can
Effectively improve the rate of recovery of oil.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of oily sludge catalytic pyrolysis system, the catalytic pyrolysis for oily sludge is with oil recovery, which is characterized in that packet
It includes:
Carrier gas device for reacting front and back blow device to avoid system jams and coking, and is also used to carry in reaction process
Gas；
First reaction unit, first reaction unit are connected to the carrier gas device, and first reaction unit is used for institute
Oily sludge is stated to be pyrolyzed to generate the oil vapour for including heavy component and light components；
Second reaction unit, second reaction unit are connected to first reaction unit, and second reaction unit is used for
The oil vapour is set to carry out catalysis reaction, to promote the heavy component to be back to first reaction unit and the lightweight
Component enters subsequent processing and then is recovered；
Condensing unit, the condensing unit are connected to second reaction unit, and the condensing unit is for condensing the lightweight
Component.
2. oily sludge catalytic pyrolysis system according to claim 1, which is characterized in that first reaction unit includes
Fixed bed reactors and the heat-insulating heating furnace for being sheathed on the fixed bed reactors, the fixed bed reactors are connected to institute simultaneously
Carrier gas device and second reaction unit are stated, the fixed bed reactors are described for being pyrolyzed to the oily sludge
Heat-insulating heating furnace is for heating the fixed bed reactors.
3. oily sludge catalytic pyrolysis system according to claim 1, which is characterized in that second reaction unit includes
Paste state bed reactor, the paste state bed reactor are connected to first reaction unit and the condensing unit, the slurry simultaneously
State bed reactor is for receiving the oil vapour and reacting the oil vapour under the action of catalyst, to promote the heavy group
Divide and is back to first reaction unit and the light components into the condensing unit and then is recovered.
4. oily sludge catalytic pyrolysis system according to claim 1, which is characterized in that the oily sludge catalytic pyrolysis
System further includes temperature control equipment, and the temperature control equipment is set to first reaction unit, the temperature control dress
Set the temperature and heating rate for controlling, showing, monitoring first reaction unit.
5. oily sludge catalytic pyrolysis system according to claim 1, which is characterized in that the carrier gas device includes successively
Gas cylinder, flowmeter and the check valve of connection, the check valve are connected to first reaction unit.
6. oily sludge catalytic pyrolysis system according to claim 1, which is characterized in that the condensing unit includes condensation
Device and the exhaust-valve for being connected to the condenser, the condenser are connected to second reaction unit, and the condenser is used for
The light components are condensed to carry out oily recycling, the exhaust-valve is for discharging extra not solidifying gas.
7. a kind of oily sludge catalytic pyrolysis treatment process characterized by comprising be pyrolyzed to oily sludge, to generate
Oil vapour；The oil vapour is set to carry out catalysis reaction, heavy component flows back and light components are recovered to promote；The heavy
Component backflow is pyrolyzed again；Condensation process is carried out to the light components, with oil recovery.
8. oily sludge catalytic pyrolysis treatment process according to claim 7, which is characterized in that oily sludge is pyrolyzed
When pyrolysis temperature be 450-550 DEG C.
9. oily sludge catalytic pyrolysis treatment process according to claim 7, which is characterized in that the catalysis reaction uses
Catalyst be semicoke base catalyst, Fe-Ni catalyst or mineral matter agent.
10. oily sludge catalytic pyrolysis treatment process according to claim 7, which is characterized in that the condensation process is logical
Cross recirculated cooling water progress.
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