WO2022023127A1 - Dispositif pour la séparation radiale en lit mobile simulé - Google Patents
Dispositif pour la séparation radiale en lit mobile simulé Download PDFInfo
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- WO2022023127A1 WO2022023127A1 PCT/EP2021/070297 EP2021070297W WO2022023127A1 WO 2022023127 A1 WO2022023127 A1 WO 2022023127A1 EP 2021070297 W EP2021070297 W EP 2021070297W WO 2022023127 A1 WO2022023127 A1 WO 2022023127A1
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- WIPO (PCT)
- Prior art keywords
- height
- channel
- adsorption chamber
- collection
- distribution channel
- Prior art date
Links
- 238000000926 separation method Methods 0.000 title claims abstract description 26
- 238000001179 sorption measurement Methods 0.000 claims abstract description 44
- 239000002904 solvent Substances 0.000 claims abstract description 25
- 238000005406 washing Methods 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000003463 adsorbent Substances 0.000 claims description 42
- 239000012530 fluid Substances 0.000 claims description 32
- 239000007787 solid Substances 0.000 claims description 25
- 230000002093 peripheral effect Effects 0.000 claims description 5
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 12
- 239000004753 textile Substances 0.000 description 7
- 238000001833 catalytic reforming Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- 150000003738 xylenes Chemical class 0.000 description 3
- DSNHSQKRULAAEI-UHFFFAOYSA-N 1,4-Diethylbenzene Chemical compound CCC1=CC=C(CC)C=C1 DSNHSQKRULAAEI-UHFFFAOYSA-N 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/004—Sparger-type elements
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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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
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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
- B01D15/1814—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns recycling of the fraction to be distributed
- B01D15/1821—Simulated moving beds
- B01D15/1842—Simulated moving beds characterized by apparatus features
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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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/006—Baffles
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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
- B01J8/02—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
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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
- B01J8/02—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
- B01J8/0207—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 the fluid flow within the bed being predominantly horizontal
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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
- B01J8/02—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
- B01J8/0207—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 the fluid flow within the bed being predominantly horizontal
- B01J8/0214—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 the fluid flow within the bed being predominantly horizontal in a cylindrical annular shaped bed
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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
- B01J8/02—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
- B01J8/04—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 the fluid passing successively through two or more beds
- B01J8/0403—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 the fluid passing successively through two or more beds the fluid flow within the beds being predominantly horizontal
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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
- B01J8/02—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
- B01J8/04—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 the fluid passing successively through two or more beds
- B01J8/0403—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 the fluid passing successively through two or more beds the fluid flow within the beds being predominantly horizontal
- B01J8/0407—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 the fluid passing successively through two or more beds the fluid flow within the beds being predominantly horizontal through two or more cylindrical annular shaped beds
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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
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/0061—Controlling the level
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00654—Controlling the process by measures relating to the particulate material
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00823—Mixing elements
- B01J2208/00831—Stationary elements
- B01J2208/0084—Stationary elements inside the bed, e.g. baffles
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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
- 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
- B01J2208/0092—Perforated plates
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00938—Flow distribution elements
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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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00018—Construction aspects
- B01J2219/0002—Plants assembled from modules joined together
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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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00027—Process aspects
- B01J2219/00033—Continuous processes
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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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00027—Process aspects
- B01J2219/00038—Processes in parallel
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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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00027—Process aspects
- B01J2219/0004—Processes in series
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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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00761—Details of the reactor
- B01J2219/00763—Baffles
- B01J2219/00765—Baffles attached to the reactor wall
- B01J2219/00768—Baffles attached to the reactor wall vertical
Definitions
- the present invention relates to a radial device for separating or reacting fluids, for example in a separation process, such as a simulated moving bed separation process, in particular xylenes, or in a reaction process, such as a catalytic reforming process.
- a separation process such as a simulated moving bed separation process, in particular xylenes
- a reaction process such as a catalytic reforming process.
- a succession of separation devices each comprising an adsorption chamber arranged between a distribution channel and a collection channel, said adsorption chamber comprising an adsorbent bed within which a fluid flows ,
- inter-bed zones to move from one bed to the next.
- radial reaction devices such as radial catalytic reforming reactors
- an overpressure to follow the surface of the solid.
- the use of an impervious textile is difficult to apply to the radial implementation of LMS separation devices because the plugging with the impervious textile of part of the adsorption chamber, between the distribution channel and the collection channel, can generate a stagnant fluid chamber (known as the "dead" volume) which affects the performance of the separation process, as well as a disturbance of the fluid distribution and collection system, this hydrodynamic disturbance unbalancing the flows and also affecting the performance of the process.
- the present invention relates to a device for radial separation (e.g. in simulated moving bed) or reaction (e.g. catalytic reforming) provided with a cylindrical enclosure comprising:
- an adsorption chamber adapted to contain a bed of adsorbents (solids), the adsorption chamber being placed between the distribution channel and the collection channel and extending from the upper wall to the lower wall,
- the adsorption chamber has a loading height greater than the height of the distribution channel and the height of the collection channel
- the device according to the present invention makes it possible to keep the distribution and collection surfaces, in particular at the level of the upper end of the adsorption chamber, constant over time despite the phenomena of compaction of the adsorbent beds during time.
- the device according to the present invention also makes it possible to maintain a high level of separation performance of the system.
- the loading height is at least 1% greater than the height of the distribution channel and the height of the collection channel.
- the loading height is between 1 and 10% greater than the height of the distribution channel and the height of the collection channel.
- the loading height is between 1.5 and 7% greater than the height of the distribution channel and the height of the collection channel.
- said at least one washing solvent inlet is adapted to supply a flow rate of washing solvent such that the ratio of the flow rate of the washing solvent relative to the flow rate of the fluid is between 0.001 and 0 ,15.
- said at least one washing solvent inlet comprises a plurality of washing solvent orifices distributed over the section of the complementary adsorbent solid, and/or a perforated plate, and/or a distributor plate.
- the device further comprises a central wall parallel to the side wall.
- the distribution channel and the collection channel are adapted for downward or upward fluid flow.
- the distribution channel is central and the collection channel is peripheral, or the distribution channel is peripheral and the collection channel is central.
- the lower limit of the adsorption chamber corresponds to the lower limits of the distribution channel and of the collection channel.
- the present invention relates to a column comprising at least 1 device according to the first aspect.
- the present invention relates to a separation or reaction process using a plurality of devices according to the first aspect or several columns according to the second aspect, process in which:
- a fluid is introduced into the distribution channel, the fluid is distributed in the adsorption chamber, and it is collected in the collection channel, and
- washing solvent is introduced into the adsorption chamber and the washing solvent is collected in the collection channel with the fluid.
- Figure 1 shows an axisymmetric sectional view along the vertical axis Z of a device for radial separation in reference LMS.
- Figure 2 shows an axisymmetric sectional view along the vertical axis Z of the device according to Figure 1, in which a waterproof textile is added to block the upper part of the adsorption chamber after settling of the solid adsorbents forming the bed of adsorbent.
- FIG. 3 shows an axisymmetric sectional view along the vertical axis Z of a device for radial separation in LMS according to one embodiment of the invention, in which an additional height of adsorbent solid is added in the upper part of the adsorption chamber.
- Figure 4 shows an axisymmetric sectional view along the vertical axis Z of the device according to Figure 3, in which the additional height of adsorbent solid has filled the compaction of the solid adsorbents by flowing by gravity.
- the present invention can be defined as a radial device (eg reactor) for the separation (eg in LMS) of compounds (eg xylenes) or the reaction (eg catalytic reforming) of compounds (eg naphtha).
- Said radial device can in particular be arranged (eg in series) within one or more columns, in particular for the LMS separation of xylenes (eg paraxylene), the column or columns being divided into N radial devices and comprising N adsorbent beds, the N adsorbent beds being separated by 2N inter-bed zones (ie N distribution zones and N collection zones).
- the number N is between 4 and 24, and preferably between 8 and 15; very preferably between 8 and 12.
- a device for radial separation in reference LMS comprises a cylindrical enclosure provided with a cylindrical side wall 1, an upper wall 2, a lower wall 3 and optionally a central wall 4 parallel to the side wall 2, ie, arranged vertically to reinforce the solidity of the enclosure.
- the enclosure also includes:
- At least one vertical collection channel 8 e.g. extending upwards from the lower outlet 7 over a height substantially ( ⁇ 10%, preferably ⁇ 5%) equal to the height of the distribution channel 6.
- the enclosure further comprises an adsorption chamber 9 (eg of cylindrical tubular shape) arranged between the distribution channel 6 and the collection channel 8, extending from the upper wall 2 to the lower wall 3, and adapted to contain a bed of adsorbent 10 over a channel height H1 corresponding to the height of the distribution channel 6 and the collection channel 8.
- the device further comprises at least one distribution grid 11, or any other means known to the Skilled person for liquid distribution, such as a perforated plate, placed between the distribution channel 6 and the adsorption chamber 9 and at least one collection grid 12 placed between the collection channel 8 and the adsorption chamber 9, said distribution and collection grids 11 and 12 allowing the passage of fluid between the distribution and collection channels 6 and 8 and the adsorption chamber 9.
- adsorption chamber 9 eg of cylindrical tubular shape
- the fluid flow in the device is descending, i e, the fluid enters the device via the upper inlet 5 and leaves the device via the lower outlet 7.
- the fluid flow can be upward from a lower inlet towards an upper outlet.
- the radial fluid flow in the adsorption chamber 9 takes place outwards, ie, from the central upper inlet 5 towards the outlet. lower 7 side.
- the radial device according to the present application can be rotated by 90°, that is to say comprising distribution and collection channels 7 and 8 that are horizontal.
- the adsorbent bed 10 completely fills (eg at least 99%) the adsorption chamber 9.
- a solution known to those skilled in the art is to add a waterproof textile 13 in the adsorption chamber 9 in order to block the upper part 14 of the adsorption chamber 9 and thus prevent a flow of fluid through a zone not provided with adsorbent.
- the presence of the waterproof textile 13 on the upper part 14 of the adsorption chamber 9 causes the retention of fluids which affects the performance of the separation process.
- a stagnant volume is observed in particular at the top of the collection channel 8, and a modification of the hydrodynamics in the distribution channel 6 with a reduction in the section open to the passage of the liquid towards the adsorbent bed 10, which affects performance.
- the device for radial separation in LMS comprises the same elements referenced 1 to 12 of the reference device.
- the adsorption chamber 9 has a loading height H3, from the upper wall 2 to the lower wall 3, greater than the height of the distribution channel 6 and the collection channel 8.
- the upper part 14 of the adsorption chamber 9 is adapted to contain an additional height of adsorbent solid 15 so that the adsorbent bed 10 has a loading height H3 of at least 1%, preferably at least 3%, very preferably at least 5% greater than the height of the distribution channel 6 and of the collection channel 8.
- the adsorbent bed has a loading height between 1 and 10%, preferably between 1, 5 and 7%, higher than the height of the distribution channel and the collection channel.
- the head height H3 is adapted so that the settlement height H4 is at least 1.0 times, preferably 1.02 times, very preferably 1.04 times, greater than the channel height H1 .
- the lower limit of the adsorption chamber 9 (eg corresponding to the position of the lower wall 3), also corresponds to the lower limits of the distribution channel 6 and of the collection channel 8.
- the upper limit of the adsorption chamber 9 (eg corresponding to the position of the upper wall 2), is at least 1.01 times, preferably 1.05 times, very preferably 1.10 times more higher than the upper limit of distribution channel 6 and collection channel 8.
- the device according to the present invention further comprises at least one washing solvent inlet 16 arranged on the upper wall 2 of the enclosure.
- the washing solvent inlet 16 notably allows the introduction of a washing solvent into the adsorption chamber 9 in order to wash the additional height of adsorbent solid 15 and limit fluid flow in the additional height of adsorbent solid 15
- the washing solvent is a compound used as a desorbent in the LMS separation process.
- the washing solvent is chosen from toluene and 1,4-diethylbenzene.
- the flow rate ratio of the washing solvent relative to the flow rate of the fluid is between 0.001 and 0.15, preferably between 0.005 and 0.10, very preferably between 0.01 and 0.08 .
- the additional height of adsorbent solid 15 is swept by a descending flow of washing solvent making it possible to limit the hydrodynamic disturbances which could be generated by the circulation of the fluid in the volume (known as the delay zone) corresponding to the additional height of adsorbent solid 15 and which would generate hydrodynamic dispersion.
- a reference column A for the LMS separation consists of 15 reference devices as shown in FIG. 1, comprising 15 adsorbent beds arranged in series, and being separated by 30 inter-bed zones. Each bed has a volume of 29.4 m 3 and a bed porosity of 32.8%.
- the performances achieved by column A are a paraxylene (PX) purity of 99.7%, a paraxylene yield of 97.7%, and a productivity of 93.4 kg/h/m 3 .
- a reference column B for the LMS separation consists of 15 reference devices as shown in FIG. 2, comprising 15 adsorbent beds arranged in series, and being separated by 30 inter-bed zones. Each bed has a volume of 29.4 m 3 and a bed porosity of 32.8%.
- the solid adsorbent undergoes in the 15 beds a settling of 8% by volume in operation which is filled by means of a tight textile placed in the adsorption chamber and stuck to the surface of the bed by an overpressure.
- the productivity of the system is lowered to 72.3 kg /h/m 3 , i.e. a loss of 22.5%.
- a column C according to the invention for the LMS separation consists of 15 devices according to the invention as represented in FIG. 3, comprising 15 adsorbent beds arranged in series, and being separated by 30 inter-bed zones. Each bed has a volume of 29.4 m 3 and a bed porosity of 32.8%.
- the solid adsorbent undergoes in the 15 beds a settling of 8% by volume in operation which is filled by means of an additional height of adsorbent solid 15 of 10.0% placed at the level of the upper part 14 of the adsorption chamber 9.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Analytical Chemistry (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21746734.9A EP4188586A1 (fr) | 2020-07-27 | 2021-07-20 | Dispositif pour la séparation radiale en lit mobile simulé |
US18/018,068 US20230278001A1 (en) | 2020-07-27 | 2021-07-20 | Device for radial separation in simulated moving bed |
JP2023505739A JP2023535788A (ja) | 2020-07-27 | 2021-07-20 | 擬似移動床におけるラジアル分離用デバイス |
KR1020237005009A KR20230042302A (ko) | 2020-07-27 | 2021-07-20 | 모사 이동층에서의 반경방향 분리를 위한 장치 |
CN202180059834.8A CN116209515A (zh) | 2020-07-27 | 2021-07-20 | 用于在模拟移动床中进行径向分离的装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FRFR2007909 | 2020-07-27 | ||
FR2007909A FR3112699B1 (fr) | 2020-07-27 | 2020-07-27 | Dispositif pour la séparation radiale en lit mobile simulé |
Publications (1)
Publication Number | Publication Date |
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WO2022023127A1 true WO2022023127A1 (fr) | 2022-02-03 |
Family
ID=73013664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2021/070297 WO2022023127A1 (fr) | 2020-07-27 | 2021-07-20 | Dispositif pour la séparation radiale en lit mobile simulé |
Country Status (8)
Country | Link |
---|---|
US (1) | US20230278001A1 (fr) |
EP (1) | EP4188586A1 (fr) |
JP (1) | JP2023535788A (fr) |
KR (1) | KR20230042302A (fr) |
CN (1) | CN116209515A (fr) |
FR (1) | FR3112699B1 (fr) |
TW (1) | TW202222419A (fr) |
WO (1) | WO2022023127A1 (fr) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2722501A (en) * | 1954-08-23 | 1955-11-01 | Universal Oil Prod Co | Hydrocarbon conversion process and apparatus |
GB1261422A (en) * | 1968-10-29 | 1972-01-26 | Allied Chem | Purification of carbonate process solutions |
EP0778082A1 (fr) * | 1995-12-05 | 1997-06-11 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Installation de traitement d'au moins un fluide et utilisation pour la séparation d'au moins un constituant d'un mélange gazeux |
WO2003072238A2 (fr) * | 2002-02-26 | 2003-09-04 | L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Precedes Georges Claude | Installation de traitement d'au moins un fluide, et utilisation pour la séparation d'au moins un constituant d'un mélange gazeux |
WO2017157717A1 (fr) * | 2016-03-16 | 2017-09-21 | Casale Sa | Parois pour lits catalytiques de réacteurs à flux radial ou axial |
-
2020
- 2020-07-27 FR FR2007909A patent/FR3112699B1/fr active Active
-
2021
- 2021-07-20 CN CN202180059834.8A patent/CN116209515A/zh active Pending
- 2021-07-20 EP EP21746734.9A patent/EP4188586A1/fr active Pending
- 2021-07-20 US US18/018,068 patent/US20230278001A1/en active Pending
- 2021-07-20 KR KR1020237005009A patent/KR20230042302A/ko unknown
- 2021-07-20 JP JP2023505739A patent/JP2023535788A/ja active Pending
- 2021-07-20 WO PCT/EP2021/070297 patent/WO2022023127A1/fr active Application Filing
- 2021-07-23 TW TW110127089A patent/TW202222419A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2722501A (en) * | 1954-08-23 | 1955-11-01 | Universal Oil Prod Co | Hydrocarbon conversion process and apparatus |
GB1261422A (en) * | 1968-10-29 | 1972-01-26 | Allied Chem | Purification of carbonate process solutions |
EP0778082A1 (fr) * | 1995-12-05 | 1997-06-11 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Installation de traitement d'au moins un fluide et utilisation pour la séparation d'au moins un constituant d'un mélange gazeux |
WO2003072238A2 (fr) * | 2002-02-26 | 2003-09-04 | L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Precedes Georges Claude | Installation de traitement d'au moins un fluide, et utilisation pour la séparation d'au moins un constituant d'un mélange gazeux |
WO2017157717A1 (fr) * | 2016-03-16 | 2017-09-21 | Casale Sa | Parois pour lits catalytiques de réacteurs à flux radial ou axial |
Also Published As
Publication number | Publication date |
---|---|
FR3112699A1 (fr) | 2022-01-28 |
JP2023535788A (ja) | 2023-08-21 |
TW202222419A (zh) | 2022-06-16 |
EP4188586A1 (fr) | 2023-06-07 |
FR3112699B1 (fr) | 2023-03-03 |
KR20230042302A (ko) | 2023-03-28 |
CN116209515A (zh) | 2023-06-02 |
US20230278001A1 (en) | 2023-09-07 |
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