EP3621727A1 - Zeolithhaltiges adsorbens zur selektiven abtrennung von isomeren aus aromatischen kohlenwasserstoffgemischen, seine herstellung und verwendung - Google Patents
Zeolithhaltiges adsorbens zur selektiven abtrennung von isomeren aus aromatischen kohlenwasserstoffgemischen, seine herstellung und verwendungInfo
- Publication number
- EP3621727A1 EP3621727A1 EP18722507.3A EP18722507A EP3621727A1 EP 3621727 A1 EP3621727 A1 EP 3621727A1 EP 18722507 A EP18722507 A EP 18722507A EP 3621727 A1 EP3621727 A1 EP 3621727A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adsorbent
- zeolite
- barium
- xylene
- separation
- Prior art date
- 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.)
- Withdrawn
Links
- 239000003463 adsorbent Substances 0.000 title claims abstract description 123
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000010457 zeolite Substances 0.000 title claims abstract description 46
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 39
- 239000000203 mixture Substances 0.000 title claims abstract description 38
- 238000000926 separation method Methods 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 150000004945 aromatic hydrocarbons Chemical class 0.000 title claims description 10
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 title description 3
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims abstract description 59
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910001425 magnesium ion Inorganic materials 0.000 claims abstract description 25
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052788 barium Inorganic materials 0.000 claims abstract description 21
- 239000012013 faujasite Substances 0.000 claims abstract description 19
- 150000003738 xylenes Chemical class 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 31
- 238000005342 ion exchange Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 22
- 239000012876 carrier material Substances 0.000 claims description 20
- 229910001422 barium ion Inorganic materials 0.000 claims description 16
- 239000011777 magnesium Substances 0.000 claims description 12
- 229910052749 magnesium Inorganic materials 0.000 claims description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000012071 phase Substances 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 6
- 239000012736 aqueous medium Substances 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 description 27
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 26
- 239000000243 solution Substances 0.000 description 26
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 18
- 239000011230 binding agent Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 11
- 125000003118 aryl group Chemical group 0.000 description 10
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 9
- 238000005259 measurement Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 239000011148 porous material Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 6
- 239000002734 clay mineral Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 229910001414 potassium ion Inorganic materials 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- DSNHSQKRULAAEI-UHFFFAOYSA-N 1,4-Diethylbenzene Chemical compound CCC1=CC=C(CC)C=C1 DSNHSQKRULAAEI-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000004820 halides Chemical class 0.000 description 3
- 229910052622 kaolinite Inorganic materials 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000007669 thermal treatment Methods 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 239000003480 eluent Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical class [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- SPPWGCYEYAMHDT-UHFFFAOYSA-N 1,4-di(propan-2-yl)benzene Chemical compound CC(C)C1=CC=C(C(C)C)C=C1 SPPWGCYEYAMHDT-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical class [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 229910001649 dickite Inorganic materials 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000007700 distillative separation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052621 halloysite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- -1 night Chemical compound 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
Classifications
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
- B01J20/186—Chemical treatments in view of modifying the properties of the sieve, e.g. increasing the stability or the activity, also decreasing the activity
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
- B01J20/28019—Spherical, ellipsoidal or cylindrical
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
- C07C7/13—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers by molecular-sieve technique
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
- B01D2253/1085—Zeolites characterized by a silicon-aluminium ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/24—Hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Definitions
- Zeolite-containing adsorbent for the selective separation of isomers from aromatic hydrocarbon mixtures, its preparation and use
- the present invention relates to an adsorbent based on a barium and magnesium exchanged zeolite of the type faujasite, which is characterized in particular by an increased separation effect of xylene isomers.
- the invention also relates to the preparation of the adsorbent ' and its use in the selective separation of isomers from aromatic hydrocarbon mixtures.
- Aromatic hydrocarbons e.g. Xylenes are important raw materials of the chemical industry and are used in particular as solvents or for the production of plastics.
- para-xylene is used for the preparation of terephthalic acid
- ortho-xylene is used to obtain phthalic acid or phthalic anhydride.
- a technically used method is to adsorptively separate the isomer mixture via an adsorbent with a suitable separation effect.
- No. 8,530,367 B2 describes a process for the selective removal of para-xylene from a mixture of xylene isomers.
- the adsorbent used is based on zeolite X, its exchangeable cationic sites at least 90% either with
- Barium ions or barium ions and potassium ions are occupied, wherein the number occupied by potassium ions sites account for up to 1/3 of the occupied with barium and potassium ions sites.
- Barium and / or potassium ions which may be unoccupied are occupied by alkali metal or alkaline earth metal ions other than barium ions.
- WO 2012/134973 A2 describes a process for the preparation of zeolite-X-containing adsorbents by the conversion of binder material into zeolite X to increase the l Proportion of zeolite X in the adsorbent and the increase in active mass.
- the adsorbent is obtained by barium and potassium ion exchanges.
- the adsorbent described in US Pat. No. 8,791,039 B2 includes inter alia a zeolite X whose exchangeable sites are occupied by group IIA metals and / or potassium.
- the adsorbent is characterized by a higher adsorption capacity and faster mass transfer rate.
- WO 2014/090771 A1 describes an adsorbent with zeolite X crystals having an average diameter ⁇ 1.7 ⁇ m and a non-zeolitized binder portion which is distinguished by increased adsorption capacity and mechanical strength.
- zeolite X crystals having an average diameter ⁇ 1.7 ⁇ m and a non-zeolitized binder portion which is distinguished by increased adsorption capacity and mechanical strength.
- barium oxide and potassium oxide different alkali and alkaline earth metal oxides are
- the object of the present invention was therefore to provide an adsorbent which is distinguished by an increased separation factor of para-xylene with respect to ortho-xylene and meta-xylene with a simultaneously high adsorption capacity.
- the zeolite-containing adsorbent according to the invention which is characterized in that at least 4.0% of the exchangeable sites of the barium-containing faujasite are occupied by magnesium ions.
- the invention relates to an adsorbent for the separation of aromatic hydrocarbon isomers, in particular of xylene isomers, comprising a support material containing a barium-containing zeolite of the faujasite type, preferably zeolite X type, characterized
- the adsorbent according to the invention is produced by the following steps according to the invention:
- step b) drying the carrier material obtained according to step b) to obtain a
- the ion exchanges with barium ions and magnesium ions are carried out so that the amount of ions in either a single exchange step or in several
- the at least one exchange step can be carried out in each case at room temperature or elevated temperature of up to 100 ° C.
- a drying of the carrier material or of the already partially ion-exchanged carrier material can take place between the individual ion exchanges.
- the drying temperature must be chosen so that no damage to the zeolite structure takes place.
- the temperature is preferably up to 80 ° C, more preferably up to 60 ° C.
- the carrier material in step b) is first subjected to a barium ion exchange and then to a magnesium ion exchange.
- the barium ion exchange can take place either in a single step or in the form of several successive steps.
- the barium ion exchange is followed by the magnesium ion exchange. This can also be done in a single step or in several consecutive steps.
- the support material can be dried, preferably below a temperature of 80 ° C, more preferably up to 60 ° C.
- the carrier material in step b) first undergoes a magnesium ion exchange and then a
- the magnesium ion exchange can take place either in a single step or in the form of several successive steps.
- the magnesium ion exchange is followed by barium ion exchange. This can also be done in a single step or in several consecutive steps.
- the support material can be dried, preferably below a temperature of 80 ° C, more preferably up to 60 ° C.
- Suitable starting compounds for the exchange with barium ions are in principle all compounds which are soluble in water, basic or acidic aqueous solutions. Preference is given to using barium nitrates or halides.
- Suitable starting compounds for exchange with magnesium ions are in principle all compounds which are soluble in water, basic or acidic aqueous solutions.
- magnesium nitrates, sulfates or halides, more preferably magnesium nitrates or halides are preferably used.
- An aqueous medium in the context of the present invention is an aqueous solution in which the Ba or Mg compounds are present in dissolved form.
- the solution can in addition to the corresponding Ba or Mg compounds even more
- Contain components such as acids or bases to completely dissolve the Ba or Mg compounds.
- step b) The material obtained after step b) is subjected to drying in step c) to obtain an adsorbent.
- This preferably takes place at a temperature up to 80 ° C, more preferably up to 60 ° C instead.
- the duration is preferably 0.5 h to 24 h, more preferably 2.0 h to 20 h.
- the adsorbent obtained after step c) is still subjected to activation in a step d) in order to adjust the water content of the adsorbent to such an extent that the adsorption properties are optimized.
- the activation takes place at a temperature in the range of 100 ° C to 450 ° C, preferably in the range of 100 ° C to 300 ° C.
- the duration is between 1, 0 h and 16 h, preferably between 1, 0 h and 8.0 h.
- the carrier material comprises a zeolite of the type faujasite.
- This zeolite has an atomic Si / Al ratio in the range of 1.00 to 3.00.
- the faujasite type zeolite is a zeolite X having a Si / Al ratio of from 1.15 to 1.50, more preferably having a Si / Al ratio of from 1.15 to 1.25.
- the carrier material may be in various forms. exemplary
- Embodiments are granules, spheres, extrudates or tablets or other shaped articles, wherein the carrier material is preferably in the form of granules or spheres, most preferably as spheres.
- the carrier material is preferably in the form of granules or spheres, most preferably as spheres.
- suitable various production processes for example agglomeration or granulation processes, for example in a pelletizer plate or Eirich mixer, spray-drying process, extrusion with subsequent rounding or so-called oil-drop processes.
- the carrier material is in the form of spheres, they are typically
- the carrier material comprises a binder.
- Suitable binders are the compounds known from the prior art, such as alumina, silica, silica-alumina, ceramics, clay minerals, and the like. Bentonite, kaolin, kaolinite, metakaolin, night, halloysite, dickite, attapulgite, sepiolite, montmorillonite, lllite or other oxide containing
- the binder content in the adsorbent is preferably from 5.0 to
- Binder for example, the strength of the carrier material is increased, which is an essential factor in particular when used in large-scale systems for the selective adsorption of aromatic compounds.
- binders in particular of naturally obtained binders such as kaolin, kaolinite, metakaolin or bentonite, a certain amount of magnesium is usually already present in the support material before step b). However, this proportion is so low that it does not significantly affect the adsorption properties.
- the proportion of magnesium in the binder used is usually less than 0.20% by weight, preferably less than 0.15% by weight.
- the adsorbent comprises a binderless carrier material.
- a binderless carrier material By this is meant a material in which the zeolite particles are essentially interconnected by other zeolite particles.
- the binderless carrier material consists entirely of the necessary for the adsorption zeolite and has by the binding of the zeolite with each other yet sufficient strength.
- These other zeolite particles are obtained by the conversion of suitable clay minerals such as kaolin, kaolinite or metakaolin by means of so-called zeolitization in a hydrothermal reaction.
- the support material containing zeolite and clay mineral and optionally additives such as a silicon source is thermally treated in an alkaline solution, wherein the aqueous alkaline solution also optionally one or more silicon sources and / or aluminum sources required for the conversion of the clay mineral into an atomic Si / Al ratio faujasite structure in the required range.
- non-zeolite binder based on a clay mineral By otherwise known process control so the proportion of non-zeolite binder based on a clay mineral can be converted into faujasite particles that bind directly with the existing faujasite particles and lead to a material that is characterized in particular by a high strength.
- the clay minerals used in this process may contain, as natural raw materials, in particular a certain amount of magnesium in the form of impurities. However, this share is so small that it has no significant influence on the
- Adsorption properties increases.
- the proportion of magnesium in typically used binders is usually less than 0.20% by weight, preferably 0.15% by weight or less.
- the support material contains no zeolite other than the faujasite type, preferably zeolite X type.
- the support material is binderless and consists only of zeolite of the type faujasite, preferably of the zeolite X type.
- the adsorbent according to the invention has such a Mg content after the magnesium ion exchange that at least 4.0%, preferably at least 7.0%, of the
- Barium-containing faujasite are occupied in the adsorbent with magnesium ions.
- the barium content of the adsorbent of the present invention is at most 36.0% by weight, preferably in the range of 25.0% by weight to 36.0% by weight, more preferably in the range of 26.0% by weight to 36.0% Weight%, more preferably in the range of 28.0% by weight to 34.0% by weight based on the mass of the adsorbent.
- the adsorbent according to the invention can still be magnesium and barium.
- Alkali metal elements such as sodium or potassium.
- the proportion thereof is preferably less than 5.0% by weight, more preferably less than 2.0% by weight and particularly preferably less than 0.5% by weight, based on the mass of the adsorbent.
- the lateral compressive strength by diameter (SDFD) of the adsorbent according to the invention is greater than or equal to 2.0 N / mm, preferably greater than or equal to 3.0 N / mm. It is preferably in the range of 2.0 N / mm to 10.0 N / mm, preferably 3.0 N / mm to 7.0 N / mm, most preferably 4.0 N / mm to 7.0 N / mm.
- the BET surface area of the adsorbent according to the invention is in the range from 500 to 800 m 2 / g, preferably in the range from 550 to 750 m 2 / g and particularly preferably in the range from 600 to 700 m 2 / g.
- the compressive strength (also known as bulk crush strength, BCS) of the adsorbent of the invention is greater than or equal to 1.5 MPa, preferably greater than or equal to 2.0 MPa, most preferably greater than or equal to 3.0 MPa. It is typically in the range of 1.5 MPa to 4.0 MPa, preferably in the range of 2.0M Pa to 4.0 MPa, most preferably in the range of 3.0 MPa to 4.0 MPa.
- the adsorbent according to the invention is suitable for a process for the separation of aromatic hydrocarbons from a mixture of the corresponding isomers.
- adsorption process can take place by means of fluid bed or fixed-bed technology, continuously or in a batch process, preferably by means of so-called simulated moving fluid bed processes in cocurrent or countercurrent (also known as "co-or countercurrent simulated moving bed").
- the adsorbent according to the invention is brought into contact with the corresponding substance mixture containing the isomers to be separated under conditions in which a selective separation of the desired isomer takes place.
- the adsorption temperatures are in the range from 100 ° C. to 200 ° C., preferably in the range from 150 ° C. to 180 ° C., and the adsorption process proceeds in the pressure range from slightly above atmospheric pressure to about 3.5 MPa. Typically, it occurs at pressures between 0.7 MPa and 2.0 MPa.
- a stream consisting of the C8 aromatic isomers is usually brought into contact with the adsorbent, wherein the adsorption temperature in a range of 100 ° C to 200 ° C, preferably from 150 ° C to 180 ° C.
- the pressure is between 0.1 1 MPa and 3.5 MPa.
- the adsorbent Before being used to adsorb the C8 aromatic isomers, the adsorbent becomes
- the adsorbent is subjected to a thermal treatment.
- the activation takes place at a temperature in the range of 100 ° C to 450 ° C, preferably in the range of 100 ° C and 300 ° C.
- the duration of activation is chosen so that the water content is reduced to the desired value, and is typically between 1, 0 h and 16 h, preferably between 1, 0 h and 8.0 h.
- para-xylene is preferably adsorbed in the pores of the adsorbent as compared to the other C8-aromatic isomers of the substance mixture;
- the adsorbed phase (located in the zeolite pores) becomes selective with para-xylene enriched based on the other components of the composition (ie the other C8 aromatic isomers).
- the remaining, depleted in para-xylene mixture represents the so-called.
- Non-adsorbed phase Contains the substance mixture, for example, in addition to para-xylene, the isomers ortho- and meta-xylene, so the adsorbed phase has a selectively increased proportion of para-xylene and the remaining, non-adsorbed phase to an accumulation of ortho- and meta-xylene, based in each case on the feed mixture.
- the non-adsorbed phase can be removed from the adsorbent with the aid of a desorbent or eluent as a so-called raffinate mixture.
- the adsorbed, in para-xylene-enriched phase is rinsed separately with a desorbent or solvent as extract mixture from the adsorbent, ie desorbed.
- Suitable desorbents or eluents are, in particular, aromatic hydrocarbons, for example para-diethylbenzene, para-diisopropylbenzene, toluene or other 1,4-substituted benzenes, and mixtures thereof.
- aromatic hydrocarbons for example para-diethylbenzene, para-diisopropylbenzene, toluene or other 1,4-substituted benzenes, and mixtures thereof.
- the components mentioned are only a selection and are considered to be inexhaustible to those skilled in the art.
- the desorbent is passed over the bed of adsorbent material.
- the para-xylene enriched in the extract stream and the other C8 aromatic isomers contained in the raffinate stream are then separated from the desorbent, e.g. by distillation. This para-xylene is obtained with high purity.
- the selectivity to para-xylene is crucial.
- the selectivity of the adsorbent with respect to the ability to separate para-xylene is characterized by the so-called separation factor or the selectivity ⁇ . This is defined by the following equation (1):
- PXA is the amount of para-xylene adsorbed in equilibrium with the adsorbent
- IA is the amount of the other C8 aromatic isomer adsorbed by the adsorbent (eg, OXA is ortho -xylene)
- pXi_ is the amount of equilibrium in the solution para-xylene
- L for the amount of other C8 aromatic isomer in solution (eg, OXL for ortho-xylene).
- the amount of para-xylene adsorbed in equilibrium with the adsorbent and the other C8 aromatic isomer can be determined from the mass balance of the equilibrium used and in equilibrium
- the adsorbent In order to be able to be used industrially as an adsorbent in the separation of para-xylene, the adsorbent must, in addition to an improved selective separation in favor of para-xylene, also have a sufficiently large adsorption capacity. This ensures that even small amounts of adsorbent can adsorb enough para-xylene to achieve the desired purity levels and productivity, and the required amount of adsorbent can be reduced accordingly.
- Large-scale adsorbents based on faujasite topology zeolites with suitable adsorption capacity typically have micropore volumes determined by nitrogen adsorption and t-plot evaluation in the range of 0.24 to 0.29 ml / g.
- the weight-based adsorption capacity of the adsorbent Cads determined e.g. Batch testing the
- Adsorption capacity expressed in% by weight, is calculated from the sum of the masses of all species adsorbed in equilibrium relative to the mass of the
- adsorbent for the adsorbent according to the invention is the adsorbent
- Adsorption capacity Cads between 13.0% to 18.0% g / (g adsorbent), preferably 14.0% to 17.0% g / (g adsorbent), most preferably greater than 15.0 g / (g adsorbent)
- the determination of the lateral compressive strength was carried out with a device of the Zwick Z 0.5 type from Zwick / Roell GmbH. A pad was positioned and a punch located vertically above it moved in the direction of the pad until it reached the ball and a force increase of 0.1 N was detected. This point defined the height of the ball, based on the height of the base. Subsequently, the stamp was driven further, with a force increase of 1 N / s was set. The absolute force increase was measured and the process continued until a decrease in force of 30% was measured. Thus, the maximum value of the force could be determined.
- Compressive Strength also known as Bulk Crush Strength, BCS
- SMS1471 Shell Method Series SMS 1471-74, "Determination of Bulk Crushing Strength of Catalysts. Compression-Sieve Method"
- the BET surface areas were determined according to DIN 66135. For the determination of
- the sample was first baked in a vacuum in the sample tube ( ⁇ 5 ⁇ m Hg).
- the nitrogen adsorption isotherm was recorded in the relative pressure range p / ⁇ of 0.001 to 1, whereby at least 35 measurement points were detected.
- micropore volume and the microporous surface were evaluated and determined by the t-plot method from the nitrogen adsorption isotherm:
- the adsorbed volume was plotted as a function of the multilayer thickness (t) according to the Harkins-Jura equation.
- the points of the t-plot curve were determined to lie on a straight line, usually in the range of 0.35 nm to 0.65 nm.
- the micropore volume was obtained from the Y-intercept of the line.
- the pore volume and pore distribution was determined using the PASCAL 440 mercury porosimeter from Thermo Electron Corporation. The measurement was carried out according to ASTM-D4284-12.
- the sample was evacuated in a dilatometer at room temperature for 30 min (p ⁇ 0.01 mbar) and filled with mercury. After insertion into the autoclave of the PASCAL 440, the pressure was slowly increased up to 4000 bar. The evaluation was made assuming cylindrical pores, a contact angle of 140 ° and a
- a determination of the proportion of the zeolite material in the adsorbent takes place by means of the method of X-ray powder diffractometry known to the person skilled in the art.
- a D4 Endeavor from BRUKER and radiation is used as CuKcrt radiation (wavelength 1, 54060 A, 40 kV, 35 mA).
- the sample is measured over a range of 5 to 90 ° 2 (step sequence 0.020 ° 2, 1, 5 seconds measurement time per step). From the preserved
- the diffractogram determines the proportion of zeolite material in the sample using the TOPAS software from BRUKER.
- the loss on ignition was determined by heating a sample of the adsorbent under an air atmosphere in a muffle furnace to 1000 ° C and stored at this temperature for 3.0 h. The loss on ignition is calculated as the difference between the mass of the weighed sample before the thermal treatment and the residual mass after the thermal treatment.
- other methods such as, for example, the determination according to Karl Fischer (ASTM D1364) can also be used, as long as these provide analogous results in the method comparison. Comparative Example 1
- the starting material used was spherical binder-free adsorbent moldings with an average diameter of 0.7 mm, which consisted essentially of zeolite NaX with an atomic Si / Al ratio of 1.17 and the granulation processes known from the prior art were manufactured.
- Comparative Example 1 The other, neither washed nor dried portion of Comparative Example 1 was subjected to a third barium exchange.
- a total of 20 kg of a 17.4 weight were -% - solution of BaCl 2 ⁇ 2H 2 0 in deionized H 2 0 and heated to 80 ° C, in which optionally the twice-treated adsorbent, and the mixture for 2 h at 80 C. was stirred.
- the salt solution was separated at this temperature and the remaining adsorbent washed with deionized H 2 0 until the conductivity of the wash water was less than 100 ⁇ / ⁇ . Thereafter, the product was dried in a forced air drying oven at 60 ° C for 16 h.
- the product obtained served as
- adsorbent A 100 g, based on the dry matter, adsorbent A was dissolved in 1053 g of a 5.0 weight -% - solution of MgCl 2 ⁇ 6H 2 0 in deionized H 2 0 added and this mixture stirred for 2 h at room temperature. Subsequently, the solution was separated and the remaining product continued to be used without further drying for the following experiment.
- Example 1 The unwashed and undried part of Example 1 was dissolved in 1053 g of a 5.0 weight -% - solution of MgCl 2 ⁇ 6H 2 0 is given in deionized H 2 0 and stirred the mixture for 2 h at room temperature. The solution was then separated and the remaining product separated in two parts in a weight ratio of 1: 1. One half was washed with deionized H 2 0 until the conductivity was below 100 ⁇ 8 / ⁇ . It was then dried at 60 ° C for 16 h. In the following, this product adsorbent 1 is called. The properties of the prepared product adsorbent 1 are summarized in Table 1. The other part became for the following attempt
- Example 4 The unwashed and undried part of Example 4 was dissolved in 1053 g
- the adsorbents prepared in the experimental part were used in a method to determine their suitability for the selective removal of para-xylene (pX) from the isomers ortho-xylene (oX) and meta-xylene (mX). For this they were first thermally activated at 220 ° C for 2 h and then transferred for a batch test for equilibrium adsorption each 0.5 g of the thermally activated adsorbent ' in a pressure-tight container. This was mixed with 3.5 g of solution containing equal proportions by weight of 2.0% by weight of para-xylene, meta-xylene and ortho-xylene and also ethylbenzene and para-diethylbenzene in iso-octane
- the material composition of the solution was determined before and after the adsorption test in each case by means of gas chromatographic analysis. On the basis of the difference of the compositions it was possible to calculate what amount of the respective substance was adsorbed by the adsorbent.
- the separation factors ß (pX / i) can thus be calculated according to equation (1). The results are shown in Table 2.
- an adsorbent comprising a Mg-exchanged barium-containing faujasite-type zeolite and having at least 4.0% of the exchangeable sites of the zeolite occupied by Mg, a significantly improved selectivity for para-xylene over one Having the prior art produced adsorbent.
- This trend is already evident in an adsorbent with a comparatively low barium content, and it is even clearer if one compares the data of adsorbent B with those of adsorbents 3 to 5.
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Abstract
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017207817.0A DE102017207817A1 (de) | 2017-05-09 | 2017-05-09 | Zeolithhaltiges Adsorbens zur selektiven Abtrennung von Isomeren aus aromatischen Kohlenwasserstoffgemischen, seine Herstellung und Verwendung |
| PCT/EP2018/061464 WO2018206417A1 (de) | 2017-05-09 | 2018-05-04 | Zeolithhaltiges adsorbens zur selektiven abtrennung von isomeren aus aromatischen kohlenwasserstoffgemischen, seine herstellung und verwendung |
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| Publication Number | Publication Date |
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| EP3621727A1 true EP3621727A1 (de) | 2020-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| EP18722507.3A Withdrawn EP3621727A1 (de) | 2017-05-09 | 2018-05-04 | Zeolithhaltiges adsorbens zur selektiven abtrennung von isomeren aus aromatischen kohlenwasserstoffgemischen, seine herstellung und verwendung |
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| Country | Link |
|---|---|
| US (1) | US20200055019A1 (de) |
| EP (1) | EP3621727A1 (de) |
| CN (1) | CN110621396A (de) |
| DE (1) | DE102017207817A1 (de) |
| TW (1) | TWI673104B (de) |
| WO (1) | WO2018206417A1 (de) |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1236369A (en) * | 1968-06-24 | 1971-06-23 | Universal Oil Prod Co | Hydrocarbon separation process |
| US3626020A (en) * | 1969-03-12 | 1971-12-07 | Universal Oil Prod Co | Separation of paraxylene from mixture of c aromatic utilizing crystalline aluminosilicate adsorbent |
| GB1589213A (en) * | 1977-09-23 | 1981-05-07 | Uop Inc | Method of manufacturing a zeolitic adsorbent |
| JPS5497592A (en) * | 1978-01-20 | 1979-08-01 | Asahi Chem Ind Co Ltd | Improved zeolite adsorber and its manufacture and uses |
| US4633018A (en) * | 1985-12-20 | 1986-12-30 | Uop Inc. | Process for separating isomers of toluenediamine |
| JP3309043B2 (ja) * | 1995-03-02 | 2002-07-29 | プラクスエア・テクノロジー・インコーポレイテッド | 単流イオン交換による混成陽イオン吸着剤の製造法 |
| FR2744717B1 (fr) * | 1996-02-09 | 1998-04-03 | Inst Francais Du Petrole | Utilisation en dismutation et/ou transalkylation d'hydrocarbures alkylaromatiques d'un catalyseur a base de zeolithe omega renfermant au moins un metal des groupes iia ivb, iib ou iva |
| FR2795407B1 (fr) * | 1999-06-22 | 2001-10-05 | Inst Francais Du Petrole | Procede de production d'au moins un isomere des xylenes comprenant une etape d'adsorption et une etape d'isomerisation avec un catalyseur de type structural euo |
| FR2903978B1 (fr) * | 2006-07-19 | 2010-09-24 | Ceca Sa | Adsorbants zeolitiques agglomeres, leur procede de preparation et leurs utilisations |
| FR2925367B1 (fr) * | 2007-12-20 | 2010-01-15 | Ceca Sa | Adsorbants zeolitiques agglomeres, leur procede de preparation et leurs utilisations |
| CN101497022B (zh) | 2008-01-31 | 2011-06-15 | 中国石油化工股份有限公司 | 聚结型沸石吸附剂及其制备方法 |
| US7820869B2 (en) * | 2008-06-30 | 2010-10-26 | Uop Llc | Binderless adsorbents and their use in the adsorptive separation of para-xylene |
| FR2934793B1 (fr) * | 2008-08-08 | 2010-11-19 | Inst Francais Du Petrole | Catalyseur comprenant une zeolithe izm-2 et au moins un metal et son utilisation en transformation d'hydrocarbures |
| US8557028B2 (en) | 2011-03-31 | 2013-10-15 | Uop Llc | Binderless zeolitic adsorbents, methods for producing binderless zeolitic adsorbents, and adsorptive separation processes using the binderless zeolitic adsorbents |
| FR2999098B1 (fr) | 2012-12-12 | 2022-01-14 | Ceca Sa | Adsorbants zeolithiques, leur procede de preparation et leurs utilisations |
| FR3004966B1 (fr) * | 2013-04-30 | 2016-02-05 | IFP Energies Nouvelles | Adsorbants zeolithiques comprenant de la zeolithe emt, leur procede de preparation et leurs utilisations |
| US9302955B2 (en) * | 2013-09-27 | 2016-04-05 | Uop Llc | Systems and methods for separating xylene isomers using selective adsorption |
| EP2982703A1 (de) * | 2014-08-06 | 2016-02-10 | Clariant International Ltd. | Energieeffizientes und umweltfreundliches Verfahren zur Herstellung von chemischen Zielverbindungen aus cellulosischem Material |
| FR3038528B1 (fr) * | 2015-07-09 | 2020-10-23 | Ifp Energies Now | Adsorbants zeolithiques, leur procede de preparation et leurs utilisations |
-
2017
- 2017-05-09 DE DE102017207817.0A patent/DE102017207817A1/de not_active Withdrawn
-
2018
- 2018-03-29 TW TW107110916A patent/TWI673104B/zh not_active IP Right Cessation
- 2018-05-04 CN CN201880030885.6A patent/CN110621396A/zh active Pending
- 2018-05-04 US US16/609,808 patent/US20200055019A1/en not_active Abandoned
- 2018-05-04 EP EP18722507.3A patent/EP3621727A1/de not_active Withdrawn
- 2018-05-04 WO PCT/EP2018/061464 patent/WO2018206417A1/de not_active Ceased
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| Publication number | Publication date |
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| TW201902572A (zh) | 2019-01-16 |
| DE102017207817A1 (de) | 2018-11-15 |
| CN110621396A (zh) | 2019-12-27 |
| TWI673104B (zh) | 2019-10-01 |
| WO2018206417A1 (de) | 2018-11-15 |
| US20200055019A1 (en) | 2020-02-20 |
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