CN107126910A - A kind of novel pulpous bed reactor - Google Patents
A kind of novel pulpous bed reactor Download PDFInfo
- Publication number
- CN107126910A CN107126910A CN201710186068.7A CN201710186068A CN107126910A CN 107126910 A CN107126910 A CN 107126910A CN 201710186068 A CN201710186068 A CN 201710186068A CN 107126910 A CN107126910 A CN 107126910A
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- CN
- China
- Prior art keywords
- reactor
- gas
- riser
- draft tube
- distributor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- B01J8/1818—Feeding of the fluidising gas
- B01J8/1827—Feeding of the fluidising gas the fluidising gas being a reactant
-
- 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
- B01J8/1845—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with particles moving upwards while fluidised
- B01J8/1854—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with particles moving upwards while fluidised followed by a downward movement inside the reactor to form a loop
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00893—Feeding means for the reactants
- B01J2208/00911—Sparger-type feeding elements
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
A kind of novel pulpous bed reactor.The paste state bed reactor constitutes reactor shell, the connection of cylinder upper and lower side end socket, the bottom inflow mouth of pipe and serum outlet, top gas outlet and slurry inlet by standard device flange cylinder；Part within the housing：Inner draft tube, coil heat exchanger, gas distributor, riser, redistributor and demister.Gas uniformly sprays from distributor, reacted with the catalyst slurry of reactor inner draft tube, flowed out in reactor upper end from gas vent, the slurries at free surface from guide shell inner barrel and the chuck flow down of inner draft tube, from bottom bulkhead flow back into inner draft tube again in circulated.Paste state bed reactor of the present invention carries out matched design to slurry bed system, reaches efficient interior circulation effect by analyzing flow.
Description
Technical field
The invention belongs to field of chemical equipment, it is related to the slurry reactor for gas-liquid two-phase or gas-liquid-solid phase reaction
The gas-liquid-solid three-phase paste state bed reactor of device, such as fischer-tropsch synthesis process.
Background technology
Slurry bed system is the focus of reactor development in recent years, and its major advantage is：For mixing, heat recovery, temperature control
System is provided than larger flexibility, and can apply finely grained catalyst, interior diffusion effect is become minimum.Paste state bed reactor
The power source of reaction mixing is used the syngas as, catalyst is suspended and reacted in the liquid phase；Because no machinery is stirred
Mix, thus No leakage can run under high pressure.But this kind of reactor has axial backmixing, its feed stock conversion is relatively low, liquid
Body hold-up is big, it is possible to create obvious homogeneous diffusion, and to gaseous reactant, it is also possible to obvious resistance to mass tranfer is produced, is dropped
Low total reaction rate.
In the design of reactor, it should according to specific course of reaction, the property, main anti-of reaction raw materials is considered
The separation of hydrodynamics, product in the characteristics of answering, reactor and many factors, the type of reasonable selection reactor such as refined
Formula, optimizes structure of reactor.
Patent about paste state bed reactor is simultaneously few, respectively there is feature.Existing slurry bed system design and imperfection, some are excessively
Complexity, some do not reach the effect of reaction matching simply excessively.And larger difficulty is also there is in terms of amplification.
The content of the invention
By analyzing principle and the flow field of paste state bed reactor, a kind of new and effective paste state bed reactor is have devised,
The paste state bed reactor constitutes reactor shell by standard device flange cylinder（5）, the connection of cylinder upper and lower side end socket（15、3）, bottom
Portion's air inlet mouth of pipe（1）And serum outlet（2）, top gas outlet（16）And slurry inlet（17）；Part within the housing：
Inner draft tube（6）, coil heat exchanger（9、12）, gas distributor（7）, riser（8）, redistributor（10）And demister
（14）.
Propose a kind of design of new distributor, the distributor is fluffy hair style distributor, realize slurry bed system it is anti-blocking and
The equally distributed function of gas.
A kind of reducing inner sleeve is devised, reducing inner sleeve reduces the back mixing of vortex and product gas, second phase to serum recycle
Reducing inner sleeve is superior to the separating effect of gas.
Pellet type redistributor is devised, with being crushed to air pocket, the redistribution of the flow path of bubble, inner member
Fixation.
Riser is combined with distributor, and being transported to middle and upper part to fresh feed gas is efficiently reacted.
Brief description of the drawings
Fig. 1 is the schematic diagram of the paste state bed reactor of the present invention.
Fig. 2 is the distributor of reactor shown in Fig. 1 and the longitudinal section of riser.
Fig. 3 is the cross-sectional view of the distributor of reactor shown in Fig. 1.
Fig. 4 is the horizontal cross-section figure of the redistributor of reactor shown in Fig. 1.
Embodiment
After gas enters bed by Anti-clogging spray nozzle, a large amount of minute bubbles are formed, due to the induced effect of gas flow rate, bed
Slurries in layer carry out violent mixing, and when gas continues to rise, catalysts and solvents are carried to top, and outside reactor
Flowed downward after barrel contacts along wall, the catalyst slurry of such bottom has just obtained timely supplementing, the slurries in bed
Concentration and viscosity are consistent substantially.
When gas flow rate is larger, partial catalyst and solvent are taken to the top of reactor by gas, after heat exchanger
The reducing inner sleeve on top is reached, same gas flow velocity after reducing continues to reduce, and catalysts and solvents are again along reactor wall
Flow downward, supplement lower catalytic agent and solvent, so whole catalyst in reactor and solvent are achieved that interior circulation, slurries
Concentration and viscosity can be just consistent substantially.
When gas flow rate continues to increase, partial catalyst and solvent are still obtained by the reducing inner sleeve on reactor top
Less than separation, the solid-liquid separator on reactor top will be entered, by solid-liquid separator, catalysts and solvents are back to reaction bed
Layer.
Claims (7)
1. novel pulpous bed reactor design, reactor shell is constituted by standard device flange cylinder, cylinder upper and lower side end socket connects
Connect, the bottom inflow mouth of pipe and serum outlet, top gas are exported and slurry inlet；Part within the housing：Inner draft tube,
Coil heat exchanger, gas distributor, riser, redistributor and demister.
2. the efficient reactor with paddle bed according to claim 1, it is characterised in that：The reactor has Inner guide
Cylinder, can be divided into two sections, and its upper end is reducing inner sleeve, and lower end is cylinder；The described reactor inner draft tube is by up and down two
Section is constituted, inner draft tube lower end height, blade diameter length ratio 7 highly equal with single housing:25；The big path of epimere reducing inner sleeve compares 8:
7, reducing height highly compares 1 with hypomere inner sleeve：5, big footpath section height highly compares 1 with hypomere inner sleeve:5, expand at footpath mouthful and be
Dentation, reduces the entrance vortex phenomenon of backflow slurries.
3. the efficient reactor with paddle bed according to claim 1, it is characterised in that：The gas distributor is fluffy head
Formula, is installed on hypomere inner sleeve bottom and vessel flange junction, is influenceed smaller by backflow slurries；The distributor opens up many
Outlet aperture, devises float valve on aperture, to preventing after parking, and the blocking of slurries is played than larger effect, and simply,
It is easy for installation, it is evenly distributed.
4. the efficient reactor with paddle bed according to claim 1, it is characterised in that：The reactor riser is by more
Root pipe constitutes riser group;Riser upper end opens up the distribution of aperture rule, and live gas is transported to the middle and upper part in slurries area,
More efficient reaction is carried out with catalyst；The riser group is installed on gas distributor, and partial raw gas is transported in instead
Answer the middle and upper part of device；1.3 ~ 1.5 times of a height of single housing height of riser, internal diameter is more than the spray orifice of distributor；On riser
Hold and aperture is uniformly opened up at 1/4.
5. the efficient reactor with paddle bed according to claim 1, it is characterised in that：The reactor redistributor is straight
Footpath is equal with inner sleeve internal diameter, and pellet type redistributor can crush air pocket, it is broken after minute bubbles path is different in the conical surface again
It is not easy to merge, the bubble stream in liquid has adherent effect, pellet type distributor can be past middle by the bubble risen along wall
Distribution, reaches effect evenly；And redistributor play the role of to inner draft tube and riser it is fixed.
6. the efficient reactor with paddle bed according to claim 1, it is characterised in that：The reactor coil heat exchanger
Close to be around in inner draft tube inwall, each Inner guide is with two coil heat exchangers above and below having；Upper coil heat exchanger is to remove reaction
The effect of heat, lower wall heat exchange of heat pipe can reach reaction institute as the heat exchanger or heating lower end low temperature feedstock gas of removing reaction heat
The temperature needed；Purpose is in order to more preferably control the temperature of reactor.
7. the efficient reactor with paddle bed according to claim 1, it is characterised in that：The reactor demister is installed
In gas vent lower end in reactor, the liquid foam entrainment in the segregation section gas of reactor top is removed in demister most of
Drop, in liquid refluxing reactor, gas is discharged from outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186068.7A CN107126910A (en) | 2017-03-27 | 2017-03-27 | A kind of novel pulpous bed reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186068.7A CN107126910A (en) | 2017-03-27 | 2017-03-27 | A kind of novel pulpous bed reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107126910A true CN107126910A (en) | 2017-09-05 |
Family
ID=59721097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710186068.7A Pending CN107126910A (en) | 2017-03-27 | 2017-03-27 | A kind of novel pulpous bed reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107126910A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI655320B (en) * | 2015-03-31 | 2019-04-01 | 日商新日鐵住金股份有限公司 | Molten zinc-based plated steel sheet |
| CN110339786A (en) * | 2019-07-04 | 2019-10-18 | 华东理工大学 | It is a kind of to strengthen the slurry bed system liquid feedstock method and apparatus for adding hydrogen mass transfer |
| CN112552964A (en) * | 2019-09-10 | 2021-03-26 | 南京延长反应技术研究院有限公司 | Micro-interface-based system and process for strengthening coal indirect liquefaction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1593740A (en) * | 2004-06-25 | 2005-03-16 | 太原理工大学 | Highly effective slurry phase bed reactor |
| BRPI0505363A (en) * | 2005-12-01 | 2007-09-25 | Petroleo Brasileiro Sa | rectifier for fluid bed gas-solid separation process |
| CN103962069A (en) * | 2013-01-31 | 2014-08-06 | 中国科学院上海高等研究院 | Slurry bed reactor |
| CN105983377A (en) * | 2015-01-30 | 2016-10-05 | 中国科学院上海高等研究院 | Airlift internal loop slurry-bed reactor |
-
2017
- 2017-03-27 CN CN201710186068.7A patent/CN107126910A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1593740A (en) * | 2004-06-25 | 2005-03-16 | 太原理工大学 | Highly effective slurry phase bed reactor |
| BRPI0505363A (en) * | 2005-12-01 | 2007-09-25 | Petroleo Brasileiro Sa | rectifier for fluid bed gas-solid separation process |
| CN103962069A (en) * | 2013-01-31 | 2014-08-06 | 中国科学院上海高等研究院 | Slurry bed reactor |
| CN105983377A (en) * | 2015-01-30 | 2016-10-05 | 中国科学院上海高等研究院 | Airlift internal loop slurry-bed reactor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI655320B (en) * | 2015-03-31 | 2019-04-01 | 日商新日鐵住金股份有限公司 | Molten zinc-based plated steel sheet |
| CN110339786A (en) * | 2019-07-04 | 2019-10-18 | 华东理工大学 | It is a kind of to strengthen the slurry bed system liquid feedstock method and apparatus for adding hydrogen mass transfer |
| CN112552964A (en) * | 2019-09-10 | 2021-03-26 | 南京延长反应技术研究院有限公司 | Micro-interface-based system and process for strengthening coal indirect liquefaction |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Shaohua Inventor after: Kuang Naiqiang Inventor after: Qian Haiwen Inventor after: Huang Jiacheng Inventor after: Zhang Caixia Inventor before: Kuang Naiqiang Inventor before: Jiang Shaohua Inventor before: Qian Haiwen Inventor before: Huang Jiacheng Inventor before: Zhang Caixia |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170905 |