CN109432823A - It is a kind of suitable for the temperature control system of Simulation moving bed and the temprature control method of Simulation moving bed - Google Patents
It is a kind of suitable for the temperature control system of Simulation moving bed and the temprature control method of Simulation moving bed Download PDFInfo
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- CN109432823A CN109432823A CN201811362625.7A CN201811362625A CN109432823A CN 109432823 A CN109432823 A CN 109432823A CN 201811362625 A CN201811362625 A CN 201811362625A CN 109432823 A CN109432823 A CN 109432823A
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- 238000004088 simulation Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 115
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- 239000003463 adsorbent Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 238000003795 desorption Methods 0.000 claims description 15
- 238000000746 purification Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 238000012163 sequencing technique Methods 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/18—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/14—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the introduction of the feed to the apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/16—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the conditioning of the fluid carrier
- B01D15/161—Temperature conditioning
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- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
The invention discloses the temprature control methods of a kind of temperature control system suitable for Simulation moving bed and Simulation moving bed；The temperature control system includes adsorbent bed, raw material feed system, parsing agent feed system, the circulatory system, Extract system, raffinate system, program-controlled valve group, automatic control system and heat-conducting oil system；The heat-conducting oil system includes the dividing wall type heat exchanger that adsorption column periphery is arranged in, Heat-transfer Oil Pump, the parsing agent heater for heating to parsing agent and the feed heater for heating to raw material of thermal conductive oil pipeline connection.The present invention couples heat-conducting oil system and Simulation moving bed, the heat of adsorption that can be rationally generated using adsorption column, and is used to parse agent and the heating of raw material for the heat, improves capacity usage ratio, reduces energy consumption, improve the stability of simulated moving bed system temperature.
Description
Technical field
The invention belongs to Simulation moving bed separation technology fields, and in particular to a kind of temperature control suitable for Simulation moving bed
The temprature control method of system and Simulation moving bed processed.
Background technique
Simulation moving bed is the separation equipment that lock out operation is carried out using absorption principle.Simulated moving bed technology is as continuous
There is the main representative of chromatography high production efficiency, organic solvent to consume less, mass transfer force is big, is convenient for automatic continuous production
The advantages that, it is widely used in the fields such as petrochemical industry, food industry and pharmacy.
Simulated moving bed technology is numerous non-linear, the non-equilibrium, unreasonably of a complicated industrial process and influence factor
Think, multivariant periodic process.In adsorption process, molecule shifts to the surface of solids, and molecular motion velocities can drop significantly
It is low, heat is released, heat of adsorption is generated.Simulation moving bed device in the prior art, heat of adsorption are not used effectively, cause
Adsorption layer temperature increases, and reduces adsorbent average activity；And the temperature of each adsorption bed with the change of its adsorption cycle and
Cyclic fluctuation is unfavorable for stable operation.
Existing heat-conducting oil system, operational process are only simple continuous cycle heat exchange process, are not suitable for simulation and move
The cyclical heat transmission of dynamic bed, is not suitable for Simulation moving bed device.
Summary of the invention
For above-mentioned technical problem existing for Simulation moving bed in the prior art, the purpose of the present invention is open a kind of applicable
In the temperature control system of Simulation moving bed and the temprature control method of Simulation moving bed.Simulation moving bed temperature of the invention
Control system, by program-controlled valve group, by conduction oil heat transfer process be divided into four periods and with four week of moving-bed adsorption
Phase unification realizes the coupling of heat-conducting oil system and simulated moving bed system.The present invention can be generated rationally using adsorption column
Heat of adsorption, and the heat is used to parse agent and the heating of raw material, improves capacity usage ratio, reduce energy consumption, improve
The stability of simulated moving bed system temperature.
The first aspect of the invention discloses a kind of temperature control system suitable for Simulation moving bed, technical solution
It is as follows.
A kind of temperature control system suitable for Simulation moving bed, including adsorbent bed, raw material feed system, parsing agent charging
System, the circulatory system, Extract system, raffinate system, program-controlled valve group, automatic control system and heat-conducting oil system；
Wherein, the adsorbent bed includes several adsorption columns, is divided into adsorption zone, purification section, desorption area；
The heat-conducting oil system includes the dividing wall type heat exchanger that adsorption column periphery is arranged in of thermal conductive oil pipeline connection, leads
Hot oil pump, the parsing agent heater for being heated to parsing agent and the feed heater for being heated to raw material；Conduction oil exists
The heat of adsorption that the adsorption column in absorption phase is released is absorbed in the dividing wall type heat exchanger, and the heat absorbed is being solved
Agent is parsed required for heating desorption cycles in analysis agent heater, raw material is heated in feed heater；
Conduction oil outlet valve is arranged in dividing wall type heat exchanger upper end described in each, and conduction oil inlet valve is arranged in lower end；
The upper end of adsorption column described in each is provided with feedstock valve, parsing agent inlet valve, circulation fluid inlet valve；
The lower end of adsorption column described in each is provided with raffinate outlet valve, Extract outlet valve；
Check valve is set between adjacent two adsorption columns；
The raw material feed system connects the feedstock valve of each adsorption column；
The parsing agent feed system connects the parsing agent inlet valve of each adsorption column；
The circulatory system includes circulating pump, and the circulatory system connects each adsorption column by circulating pump
Circulation fluid inlet valve；
The Extract system connects the Extract outlet valve of each adsorption column；
The raffinate system connects the raffinate outlet valve of each adsorption column；
All valves form sequencing valve group, and program-controlled valve group is connected with automatic control system, and automatic control system can control
The open and close state of each valve in program-controlled valve group.
Preferably, additional heater is set in the outlet of parsing pump, it is impossible to meet the feelings that system is run in heat of adsorption
It is supplemented under condition using additional heat.
Preferably, the adsorption column is 3~100.
Preferably, the adsorption column is 8*N root, wherein N is the integer more than or equal to 1.It is further preferred that described
Adsorption column be 8.
Preferably, the Extract system includes extraction liquid pump, the Extract pipeline of extraction liquid pump connection adsorbent bed.
Preferably, the raffinate system includes raffinate liquid pump, and raffinate liquid pump connects the raffinate pipeline of adsorbent bed.
Preferably, the Extract pipeline of the feed inlet connection adsorbent bed of the circulating pump of the circulatory system.
Preferably, valve types in the program-controlled valve group are independent to be selected as ball valve, needle-valve, shut-off valve, butterfly
One of valve.Preferably, executing agency is pneumatically or electrically.
Preferably, the adsorbent bed further includes buffer area, that is, the adsorbent bed is divided into adsorption zone, purification section, desorption area
And buffer area.
The second aspect of the invention discloses a kind of simulation of temperature control system using the Simulation moving bed
Moving bed temprature control method, its technical solution is as follows.
Use the Simulation moving bed temprature control method of the temperature control system suitable for Simulation moving bed, packet
It includes,
Moving-bed adsorption separation process is made to be divided into absorption, buffering, desorption, four week of purification using program-controlled valve group
Phase, and four periods are carried out uninterruptedly sequentially by valve transfer；When a certain adsorption column is in adsorption cycle, the suction is opened
The corresponding conduction oil inlet valve of attached column and conduction oil outlet valve, take away heat of adsorption using conduction oil by way of septate heat transfer,
The conduction oil inlet valve and conduction oil outlet valve of other adsorption columns are in close state；By the heat absorbed in parsing agent heating
Agent is parsed required for device heating desorption cycles and raw material is heated in feed heater.
Preferably, the adsorption column is 8, and the Simulation moving bed temprature control method is specifically:
In 0-1t timing, adsorption column 5, adsorption column 6 are in adsorption zone, corresponding conduction oil inlet valve E7, conduction oil discharging
Valve E8, conduction oil inlet valve F7, conduction oil outlet valve F8 open the dividing wall type that adsorption column 5,6 outside of adsorption column are flowed through for conduction oil
Heat exchanger；Entering purification section after 5 adsorption saturation of adsorption column, corresponding conduction oil inlet valve E7, conduction oil outlet valve E8 are closed,
Adsorption column 7 enters adsorption zone by buffer area simultaneously, and corresponding conduction oil inlet valve G7, conduction oil outlet valve G8 valve are opened, used
To recycle the heat of adsorption of adsorption column 7；
Control valve switches to change the position of t-2t, 2t-3t, 3t-4t timing input and output material, realizes adsorption zone, purification
Area, desorption area, the simulation of buffer area are mobile, circuit sequentially.
The present invention achieves beneficial effect.
For failing to efficiently use heat of adsorption and the thus unstable skill of caused Simulation moving bed temperature in the prior art
Conduction oil heat transfer process is divided into four periods by program-controlled valve group and moved with simulation by the proposition of art problem, the invention
Four period unifications of bed absorption, realize the coupling of heat-conducting oil system and simulated moving bed system.The present invention can be reasonable
The heat of adsorption generated using adsorption column, and the heat is used to parse agent and the heating of raw material, capacity usage ratio is improved,
Energy consumption is reduced, the stability of simulated moving bed system temperature is improved.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of temperature control system suitable for Simulation moving bed of the invention.
Specific embodiment
With reference to embodiment and attached drawing comparison technical solution of the present invention is further illustrated.
Embodiment 1
By taking adsorption column is 8 as an example, a kind of temperature control system suitable for Simulation moving bed of the present embodiment, comprising:
Adsorbent bed, raw material feed system, parsing agent feed system, the circulatory system, Extract system, raffinate system, journey
Control valve group, automatic control system and Heat-conduction oil circulation system；
Wherein, the adsorbent bed include 8 adsorption columns, i.e. adsorption column 1-8, be divided into adsorption zone, purification section, desorption area with
And buffer area (it should be pointed out that the present embodiment uses the adsorbent bed comprising adsorption zone, purification section, desorption area and buffer area,
But buffer area is not necessary to choosing for the present invention, belongs to optional)；
The heat-conducting oil system includes the dividing wall type heat exchanger that adsorption column periphery is arranged in of thermal conductive oil pipeline connection, leads
Hot oil pump, the parsing agent heater for being heated to parsing agent and the feed heater for being heated to raw material；Conduction oil exists
The heat of adsorption that the adsorption column in absorption phase is released is absorbed in the dividing wall type heat exchanger, and the heat absorbed is being solved
Agent is parsed required for heating desorption cycles in analysis agent heater, raw material is heated in feed heater；
Conduction oil outlet valve A8, B8, C8, D8, E8, F8, G8, H8 is arranged in each dividing wall type heat exchanger upper end, and lower end is set
Set conduction oil inlet valve A7, B7, C7, D7, E7, F7, G7, H7；
The upper end of each adsorption column is provided with feedstock valve A3, B3, C3, D3, E3, F3, G3, H3, parsing agent charging
Valve A2, B2, C2, D2, E2, F2, G2, H2, circulation fluid inlet valve A4, B4, C4, D4, E4, F4, G4, H4；
The lower end of each adsorption column is provided with raffinate outlet valve A5, B5, C5, D5, E5, F5, G5, H5, Extract and goes out
Expect valve A6, B6, C6, D6, E6, F6, G6, H6；
Check valve A1, B1, C1, D1, E1, F1, G1, H1 are set between adjacent two adsorption columns；
The raw material feed system connect the feedstock valve A3, B3 of each adsorption column, C3, D3, E3, F3, G3,
H3；
The parsing agent feed system connect the parsing agent inlet valve A2, B2 of each adsorption column, C2, D2, E2, F2,
G2,H2；
The circulatory system includes circulating pump, and the circulatory system connects each adsorption column by circulating pump
Circulation fluid inlet valve A4, B4, C4, D4, E4, F4, G4, H4；
The Extract system connect the Extract outlet valve A6, B6 of each adsorption column, C6, D6, E6, F6, G6,
H6；
The raffinate system connect the raffinate outlet valve A5, B5 of each adsorption column, C5, D5, E5, F5, G5,
H5；
All valves form sequencing valve group, and program-controlled valve group is connected with automatic control system, and automatic control system can control
The open and close state of each valve in program-controlled valve group.
It is selectable as the improvement of the present embodiment, in the outlet of parsing pump, additional heater is set, heat of adsorption not
It is supplemented in the case where can satisfy process operation using external heat.
Selectable as the improvement of the present embodiment, the Extract system includes extraction liquid pump, extraction liquid pump connection
The Extract pipeline of adsorbent bed.
Selectable as the improvement of the present embodiment, the raffinate system includes raffinate liquid pump, the connection of raffinate liquid pump
The raffinate pipeline of adsorbent bed.
Selectable as the improvement of the present embodiment, the feed inlet of the circulating pump of the circulatory system connects adsorbent bed
Extract pipeline.
It is selectable as the improvement of the present embodiment, the valve types selection independent in the program-controlled valve group
For one of ball valve, needle-valve, shut-off valve, butterfly valve；That is it is ball valve that 56 valves of the present embodiment are independent, needle-valve, is cut
Only one of valve, butterfly valve, do not interfere between each other.Valve actuator is pneumatically or electrically.
Embodiment 2
Using the temperature control process of the temperature control system suitable for Simulation moving bed of embodiment 1, sequencing valve is utilized
Group is so that moving-bed adsorption separation process is divided into absorption, buffering, desorption, four periods of purification, and is made by valve transfer
Four periods uninterruptedly sequentially carry out；
In 0-1t timing, adsorption column 5, adsorption column 6 are in adsorption zone, corresponding conduction oil inlet valve E7, conduction oil discharging
Valve E8, conduction oil inlet valve F7, conduction oil outlet valve F8 open the dividing wall type that adsorption column 5,6 outside of adsorption column are flowed through for conduction oil
Heat exchanger；Entering purification section after 5 adsorption saturation of adsorption column, corresponding conduction oil inlet valve E7, conduction oil outlet valve E8 are closed,
Adsorption column 7 enters adsorption zone by buffer area simultaneously, and corresponding conduction oil inlet valve G7, conduction oil outlet valve G8 valve are opened, used
To recycle the heat of adsorption of 7# adsorption column；
Control valve switches to change the position of t-2t, 2t-3t, 3t-4t timing input and output material, realizes adsorption zone, purification
Area, desorption area, the simulation of buffer area are mobile, circuit sequentially.
Claims (11)
1. a kind of temperature control system suitable for Simulation moving bed, which is characterized in that including adsorbent bed, raw material feed system,
Parse agent feed system, the circulatory system, Extract system, raffinate system, program-controlled valve group, automatic control system and conduction oil
System；
Wherein, the adsorbent bed includes several adsorption columns, is divided into adsorption zone, purification section, desorption area；
The heat-conducting oil system includes the dividing wall type heat exchanger that adsorption column periphery is arranged in of thermal conductive oil pipeline connection, conduction oil
Pump, the parsing agent heater for being heated to parsing agent and the feed heater for being heated to raw material；Conduction oil is described
Dividing wall type heat exchanger in absorb in absorption phase adsorption column release heat of adsorption, and by the heat absorbed parsing agent
Parsing agent required for desorption cycles is heated in heater, raw material is heated in feed heater；
Conduction oil outlet valve is arranged in dividing wall type heat exchanger upper end described in each, and conduction oil inlet valve is arranged in lower end；
The upper end of adsorption column described in each is provided with feedstock valve, parsing agent inlet valve, circulation fluid inlet valve；
The lower end of adsorption column described in each is provided with raffinate outlet valve, Extract outlet valve；
Check valve is set between adjacent two adsorption columns；
The raw material feed system connects the feedstock valve of each adsorption column；
The parsing agent feed system connects the parsing agent inlet valve of each adsorption column；
The circulatory system includes circulating pump, and the circulatory system connects the circulation of each adsorption column by circulating pump
Liquid inlet valve；
The Extract system connects the Extract outlet valve of each adsorption column；
The raffinate system connects the raffinate outlet valve of each adsorption column；
All valves form sequencing valve group, and program-controlled valve group is connected with automatic control system, and automatic control system can control program-controlled
The open and close state of each valve in valve group.
2. a kind of temperature control system suitable for Simulation moving bed according to claim 1, which is characterized in that parsing
Additional heater is arranged in the outlet of pump, and in heat of adsorption, it is impossible to meet given in the case that system is run using additional heat
Supplement.
3. a kind of temperature control system suitable for Simulation moving bed according to claim 1 or 2, which is characterized in that institute
The adsorption column stated is 3~100.
4. a kind of temperature control system suitable for Simulation moving bed, feature described in -3 Arbitrary Terms exist according to claim 1
In the adsorption column is 8*N root, wherein N is the integer more than or equal to 1.
5. a kind of temperature control system suitable for Simulation moving bed, feature described in -4 Arbitrary Terms exist according to claim 1
In the Extract system includes extraction liquid pump, the Extract pipeline of extraction liquid pump connection adsorbent bed.
6. a kind of temperature control system suitable for Simulation moving bed, feature described in -5 Arbitrary Terms exist according to claim 1
In the raffinate system includes raffinate liquid pump, and raffinate liquid pump connects the raffinate pipeline of adsorbent bed.
7. a kind of temperature control system suitable for Simulation moving bed, feature described in -6 Arbitrary Terms exist according to claim 1
In the Extract pipeline of the feed inlet connection adsorbent bed of the circulating pump of the circulatory system.
8. a kind of temperature control system suitable for Simulation moving bed, feature described in -7 Arbitrary Terms exist according to claim 1
In valve types in the program-controlled valve group are independent to be selected as one of ball valve, needle-valve, shut-off valve, butterfly valve；It holds
Row mechanism is pneumatically or electrically.
9. a kind of temperature control system suitable for Simulation moving bed, feature described in -8 Arbitrary Terms exist according to claim 1
In the adsorbent bed further includes buffer area.
10. using a kind of simulation of the temperature control system suitable for Simulation moving bed described in claim 1-8 any one
Moving bed temprature control method, which is characterized in that including,
Moving-bed adsorption separation process is made to be divided into absorption, buffering, desorption, four periods of purification using program-controlled valve group, and
Four periods are carried out uninterruptedly sequentially by valve transfer；When a certain adsorption column is in adsorption cycle, the adsorption column is opened
Corresponding conduction oil inlet valve and conduction oil outlet valve, take away heat of adsorption using conduction oil by way of septate heat transfer, other
The conduction oil inlet valve and conduction oil outlet valve of adsorption column are in close state；The heat absorbed is added in parsing agent heater
Agent is parsed required for the thermal desorption period and raw material is heated in feed heater.
11. Simulation moving bed temprature control method described in -9 Arbitrary Terms according to claim 1, which is characterized in that the suction
Attached column is 8, and the Simulation moving bed temprature control method is specifically:
In 0-1t timing, adsorption column 5, adsorption column 6 are in adsorption zone, corresponding conduction oil inlet valve E7, conduction oil outlet valve E8,
Conduction oil inlet valve F7, conduction oil outlet valve F8 open the wall-type heat exchange that adsorption column 5,6 outside of adsorption column are flowed through for conduction oil
Device；Enter purification section after 5 adsorption saturation of adsorption column, corresponding conduction oil inlet valve E7, conduction oil outlet valve E8 are closed, simultaneously
Adsorption column 7 enters adsorption zone by buffer area, and corresponding conduction oil inlet valve G7, conduction oil outlet valve G8 valve are opened, to return
Receive the heat of adsorption of adsorption column 7；
Control valve switches to change the position of t-2t, 2t-3t, 3t-4t timing input and output material, realizes adsorption zone, purification section, takes off
Attached area, the simulation of buffer area are mobile, circuit sequentially.
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| CN1126628A (en) * | 1994-06-17 | 1996-07-17 | 代科化学工业株式会社 | Simulated moving bed chromatographic separation process |
| CN1145060A (en) * | 1994-02-15 | 1997-03-12 | 莱利工业公司 | Desorption process and apparatus |
| US7288200B1 (en) * | 1999-06-09 | 2007-10-30 | Institut Francais Du Petrole | System for injecting a by-pass fluid in a separation method in a simulated moving bed |
| CN201618442U (en) * | 2009-12-08 | 2010-11-03 | 辽宁科技大学 | Three-band simulated moving bed chromatography device |
| CN202724749U (en) * | 2012-09-06 | 2013-02-13 | 河北工业大学 | Simulated moving bed device for continuously extracting potassium from seawater |
| CN206783460U (en) * | 2017-04-18 | 2017-12-22 | 天津大学 | The sea water desalinating unit of matter circulation absorption bed is returned with backheat |
| CN209575842U (en) * | 2018-11-14 | 2019-11-05 | 内蒙古伊泰煤基新材料研究院有限公司 | A kind of temperature control system suitable for Simulation moving bed |
-
2018
- 2018-11-14 CN CN201811362625.7A patent/CN109432823B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145060A (en) * | 1994-02-15 | 1997-03-12 | 莱利工业公司 | Desorption process and apparatus |
| CN1126628A (en) * | 1994-06-17 | 1996-07-17 | 代科化学工业株式会社 | Simulated moving bed chromatographic separation process |
| US7288200B1 (en) * | 1999-06-09 | 2007-10-30 | Institut Francais Du Petrole | System for injecting a by-pass fluid in a separation method in a simulated moving bed |
| CN201618442U (en) * | 2009-12-08 | 2010-11-03 | 辽宁科技大学 | Three-band simulated moving bed chromatography device |
| CN202724749U (en) * | 2012-09-06 | 2013-02-13 | 河北工业大学 | Simulated moving bed device for continuously extracting potassium from seawater |
| CN206783460U (en) * | 2017-04-18 | 2017-12-22 | 天津大学 | The sea water desalinating unit of matter circulation absorption bed is returned with backheat |
| CN209575842U (en) * | 2018-11-14 | 2019-11-05 | 内蒙古伊泰煤基新材料研究院有限公司 | A kind of temperature control system suitable for Simulation moving bed |
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