CN206285874U - A kind of double material slurry-bed hydrocracking device of outer circulation type - Google Patents
A kind of double material slurry-bed hydrocracking device of outer circulation type Download PDFInfo
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- CN206285874U CN206285874U CN201621445621.1U CN201621445621U CN206285874U CN 206285874 U CN206285874 U CN 206285874U CN 201621445621 U CN201621445621 U CN 201621445621U CN 206285874 U CN206285874 U CN 206285874U
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Abstract
The double material slurry-bed hydrocracking device of the utility model outer circulation type belongs to petrochemical industry and coal chemical technology, it is related to a kind of hydrocracking reaction device, a kind of especially double material slurry-bed hydrocracking device of outer circulation type, including the suspended-bed reactor that multiple is sequentially connected in series, it is characterised in that：First suspended-bed reactor bottom is respectively arranged with solid discharge and feed(raw material)inlet, thermal high knockout drum is connected with the top of last suspended-bed reactor, the bottom of the thermal high knockout drum is connected to first feed(raw material)inlet of suspended-bed reactor bottom by circulating pump.The utility model simple structure, double material is realized using the discharging opening and the solid discharge of bottom at the top of suspension bed reaction device, efficiently solve the problem of reactor bottom solid precipitation, the mass-and heat-transfer of fluid in enhancing reactor, pressure drop and the temperature difference of reactor are reduced, the steady long-term operation of reactor is ensured.
Description
Technical field
The utility model belongs to petrochemical industry and coal chemical technology, is related to a kind of hydrocracking reaction device, and especially one
Plant the double material slurry-bed hydrocracking device of outer circulation type.
Background technology
Floating bed hydrocracking technology is the important process process in heavy oil lighting and coal liquefaction field.It is existing at present outstanding
Floating bed reactor realizes the circulation state of inside reactor, enhancing reactor materials inside by setting reactor internal components
Mass-and heat-transfer, reduce the solid precipitation of reactor bottom, but the setting of internals can influence the stream of inside reactor fluid
, easily there is " dead band " and fluid back mixing phenomenon in dynamic state in reactor, wherein then cracking gas increases the back-mixing of light component in product
Plus, device economic benefit is reduced, while the abrasion of internals is the key factor for influenceing device stable operation.
CN105727845A discloses a kind of pair of solid suspension bed hydroprocessing reactor.The reactor include housing, conical bottom,
Guide shell and nozzle, wherein case top are provided with material outlet, and conical bottom is located at housing bottom, and guide shell is co-axially located at housing
Interior and both ends open, nozzle is arranged on conical bottom bottom, so as to realize the inside circulation vertically of the fluid in reactor, strengthens
The mass-and heat-transfer of inside reactor fluid.
CN102451650 discloses a kind of floating bed hydrogenation reactor, and the reactor includes the cylinder type perpendicular to ground
Reactor shell and some inner circulation zones being made up of cylinder, truncated cone diffuser and guide frame, are conducive to hydrogenation reaction
Carrying out and light oil yield raising.
Hydrocracking reaction process temperature is high in said apparatus, the residence time is long, is easily caused reaction species and is susceptible to
Coking, additionally, in for Coal Liquefaction course of reaction, unreacted coal and ash content are deposited on reactor bottom, hinder
The mass-and heat-transfer of reactor, causes reactor pressure difference and excessive temperature differentials, is unfavorable for the long-period stable operation of reaction unit.
The content of the invention
In order to solve the above problems, the utility model provides a kind of simple structure, using going out at the top of suspended-bed reactor
The solid discharge of material mouth and bottom realizes double material, efficiently solves the problem of reactor bottom solid precipitation, enhancing reactor
The mass-and heat-transfer of interior fluid, reduces pressure drop and the temperature difference of reactor, ensures that the outer circulation type of the steady long-term operation of reactor is double
Discharge slurry-bed hydrocracking device.
The double material slurry-bed hydrocracking device of the utility model outer circulation type, including the suspension that multiple is sequentially connected in series
Bed reactor, first suspended-bed reactor bottom is respectively arranged with solid discharge and feed(raw material)inlet, and last suspension bed is anti-
Answer and be connected with the top of device thermal high knockout drum, the bottom of the thermal high knockout drum is connected to first suspension by circulating pump
The feed(raw material)inlet of bed reactor bottom.
Preferably, the suspended-bed reactor is set to three, according to the order of connection, is followed successively by the reaction of the first suspension bed
Device, the second suspended-bed reactor, the 3rd suspended-bed reactor, first suspended-bed reactor, the second suspended-bed reactor and
3rd suspended-bed reactor is connected with hydrogen delivery tube road, and the hydrogen delivery tube road is used for conveying hydrogen.
Preferably, top, middle part, the bottom of first suspended-bed reactor and the second suspended-bed reactor with it is described
Hydrogen delivery tube road is connected；The middle part and bottom of the 3rd suspension bed are connected with the hydrogen delivery tube road.
Preferably, first suspended-bed reactor, the second suspended-bed reactor and the 3rd suspended-bed reactor are
Streaming laminar flow suspended-bed reactor.
Preferably, the up flow type laminar flow suspended-bed reactor is without inner member laminar flow hydrocracking reactor.
Preferably, first suspended-bed reactor is top conveying reaction mass, double discharging types of bottom output residue
Without inner member laminar flow hydrocracking reactor.
The utility model simple structure, sets solid discharge so that first suspension bed is anti-first suspension device bottom
Answer the bottom and top of device to realize double discharging structures, efficiently solve the problem of reactor bottom solid precipitation, ensure reaction
The steady long-term operation of device.
The utility model from three sections without inner member laminar flow hydrocracking reactor, without flow dead, it is to avoid interior structure
Part wear problem, while reducing the possibility of reactor bottom solid matter deposition.
The back-mixing that the utility model passes through part thermal high knockout drum product, improves the linear velocity of fluid in reactor,
Mass-and heat-transfer process between reinforcing gas, liquid, solid three, the hydrogenation effect of intensified response thing reaches reduction gaseous product yield,
The overhydrocracking of heavy product is realized, the purpose of reactor gas holdup is reduced.When three suspended-bed reactors are set, the
The middle part and bottom of three suspended-bed reactors are connected with hydrogen delivery tube road, and top is not connected then at hydrogen delivery tube road, subtracts
Few thermal loss, reduction hydrogen consumption.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Reference：1- raw materials, 2- hydrogen, 3- thermal high knockout drums, 4- thermal high knockout drum top gas products, 5- heat
High pressure knockout drum middle part intermediate product, 6- thermal high knockout drums bottom heavy product, 7- circulating pumps, 8- residues, 9- first suspends
Bed reactor, the suspended-bed reactors of 10- second, the suspended-bed reactors of 11- the 3rd.
Specific embodiment
The double material slurry-bed hydrocracking device of outer circulation type, including three suspended-bed reactors being sequentially connected in series,
Respectively the first suspended-bed reactor, the second suspended-bed reactor and the 3rd suspended-bed reactor, the first suspended-bed reactor bottom
Portion is respectively arranged with solid discharge and feed(raw material)inlet；Thermal high knockout drum is connected with the top of 3rd suspended-bed reactor；It is described
The bottom of thermal high knockout drum is connected to the feed(raw material)inlet of the first suspended-bed reactor bottom by circulating pump；The thermal high point
Top and middle part from tank produce gaseous product and intermediate product respectively, and the discharging is machined by follow up device；Described first
Top, middle part, the bottom of suspended-bed reactor and the second suspended-bed reactor are connected with the hydrogen delivery tube road；3rd hangs
The middle part and bottom of floating bed are connected with the hydrogen delivery tube road, and the hydrogen delivery tube road is used for conveying hydrogen；Described first
Suspended-bed reactor, the second suspended-bed reactor and the 3rd suspended-bed reactor are up flow type laminar flow suspended-bed reactor；
The up flow type laminar flow suspended-bed reactor is without inner member laminar flow hydrocracking reactor；The first suspension bed reaction
Device is top conveying reaction mass, double discharging types of bottom output residue without inner member laminar flow hydrocracking reactor.
The course of work of the double material slurry-bed hydrocracking device of the utility model outer circulation type is as follows：
After raw material 1 enters the first suspended-bed reactor 9 from feed(raw material)inlet, then the second suspended-bed reactor bottom is passed through successively
Entrance after, then by the top of the second suspended-bed reactor outlet enter the 3rd suspended-bed reactor bottom entrance, finally from
Discharging opening discharge at the top of 3rd suspended-bed reactor；Product at the top of 3rd suspended-bed reactor enters thermal high knockout drum 3；
Gaseous product 4 at the top of thermal high knockout drum enters cold high pressure separator, and the intermediate product 5 in the middle part of thermal high knockout drum enters normal
Vacuum distillation apparatus, the heavy product 6 of thermal high knockout drum bottom enters the first suspension bed after circulating pump 7 mixes with raw material
Reactor 9；The solid phase components residue 8 of the first suspended-bed reactor bottom deposit is discharged into Solid state fermentation and fills by solid discharge
Put；Hydrogen 2 by hydrogen delivery tube road be delivered to respectively the top of the first suspended-bed reactor and the second suspended-bed reactor, in
The middle part and bottom in portion, bottom and the 3rd suspension bed.
During the utility model is mainly for suspended-bed reactor hydrocracked, treated carbon residue high, ash-rich inferior raw material
The hydrocracking reactor inner member serious wear of presence, easily formation " dead band " and easily generation solid are deposited and cause reactor temperature
The shortcomings of difference and pressure difference are excessive, by using without inner member reactor, it is to avoid it is unstable that inner member damages the plant running for causing
Problem and reactor there is a problem of in " dead band "；Effect is hydrocracked using material outside circulation regulation raw material, suppresses cracking
The generation of gas and coke, improves the yield of midbarrel product；Avoided using the mode of reactor bottom discharge deposition solid phase
The solid precipitation of reactor bottom, the mass-and heat-transfer of enhancing reactor reduces the pressure difference and the temperature difference of inside reactor, realizes reaction
The long-period stable operation of device.
Claims (6)
1. the suspension bed reaction that a kind of double material slurry-bed hydrocracking device of outer circulation type, including multiple is sequentially connected in series
Device, it is characterised in that：First suspended-bed reactor bottom is respectively arranged with solid discharge and feed(raw material)inlet, last suspension
Thermal high knockout drum is connected with the top of bed reactor, the bottom of the thermal high knockout drum is connected to first by circulating pump
The feed(raw material)inlet of suspended-bed reactor bottom.
2. the double material slurry-bed hydrocracking device of outer circulation type according to claim 1, it is characterised in that：It is described
Suspended-bed reactor is set to three, according to the order of connection, be followed successively by the first suspended-bed reactor, the second suspended-bed reactor,
3rd suspended-bed reactor, first suspended-bed reactor, the second suspended-bed reactor and the 3rd suspended-bed reactor with
Hydrogen delivery tube road is connected.
3. the double material slurry-bed hydrocracking device of outer circulation type according to claim 2, it is characterised in that described
Top, middle part, the bottom of the first suspended-bed reactor and the second suspended-bed reactor are connected with the hydrogen delivery tube road；The
The middle part and bottom of three suspension beds are connected with the hydrogen delivery tube road.
4. the double material slurry-bed hydrocracking device of outer circulation type according to Claims 2 or 3, it is characterised in that：
First suspended-bed reactor, the second suspended-bed reactor and the 3rd suspended-bed reactor are up flow type laminar flow suspension bed
Reactor.
5. the double material slurry-bed hydrocracking device of outer circulation type according to claim 4, it is characterised in that：It is described
Up flow type laminar flow suspended-bed reactor is without inner member laminar flow hydrocracking reactor.
6. the double material slurry-bed hydrocracking device of outer circulation type according to claim 5, it is characterised in that：It is described
First suspended-bed reactor be top conveying reaction mass, bottom output residue double discharging types without inner member laminar flow be hydrogenated with split
Change reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621445621.1U CN206285874U (en) | 2016-12-27 | 2016-12-27 | A kind of double material slurry-bed hydrocracking device of outer circulation type |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621445621.1U CN206285874U (en) | 2016-12-27 | 2016-12-27 | A kind of double material slurry-bed hydrocracking device of outer circulation type |
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| CN206285874U true CN206285874U (en) | 2017-06-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108456550A (en) * | 2018-01-30 | 2018-08-28 | 煤炭科学技术研究院有限公司 | A kind of outer circulation type reaction unit and kerosene are total to smelting method |
-
2016
- 2016-12-27 CN CN201621445621.1U patent/CN206285874U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108456550A (en) * | 2018-01-30 | 2018-08-28 | 煤炭科学技术研究院有限公司 | A kind of outer circulation type reaction unit and kerosene are total to smelting method |
| CN108456550B (en) * | 2018-01-30 | 2020-05-12 | 煤炭科学技术研究院有限公司 | External circulation type reaction device and kerosene co-refining method |
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