WO2019206591A1 - Procede de deshydratation isomerisante de monoalcool primaire non lineaire sur un catalyseur zeolithique quadrilobe de type fer - Google Patents
Procede de deshydratation isomerisante de monoalcool primaire non lineaire sur un catalyseur zeolithique quadrilobe de type fer Download PDFInfo
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- WO2019206591A1 WO2019206591A1 PCT/EP2019/058454 EP2019058454W WO2019206591A1 WO 2019206591 A1 WO2019206591 A1 WO 2019206591A1 EP 2019058454 W EP2019058454 W EP 2019058454W WO 2019206591 A1 WO2019206591 A1 WO 2019206591A1
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- Prior art keywords
- catalyst
- binder
- zeolite
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- weight
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- 239000003054 catalyst Substances 0.000 title claims abstract description 132
- 239000010457 zeolite Substances 0.000 title claims abstract description 71
- 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 67
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 24
- 230000018044 dehydration Effects 0.000 title claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 4
- 229910052742 iron Inorganic materials 0.000 title description 2
- 239000011230 binding agent Substances 0.000 claims abstract description 79
- 239000000203 mixture Substances 0.000 claims abstract description 38
- 239000011148 porous material Substances 0.000 claims abstract description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 72
- 239000000377 silicon dioxide Substances 0.000 claims description 34
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 30
- 239000000843 powder Substances 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 229910001657 ferrierite group Inorganic materials 0.000 claims description 17
- 239000007864 aqueous solution Substances 0.000 claims description 10
- 238000006317 isomerization reaction Methods 0.000 claims description 10
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 235000011837 pasties Nutrition 0.000 claims description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000007669 thermal treatment Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000012159 carrier gas Substances 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 238000004898 kneading Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 abstract description 18
- 239000007787 solid Substances 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 15
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 15
- 230000003197 catalytic effect Effects 0.000 description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 11
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 10
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 7
- QPRQEDXDYOZYLA-UHFFFAOYSA-N 2-methylbutan-1-ol Chemical compound CCC(C)CO QPRQEDXDYOZYLA-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 6
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 229910052753 mercury Inorganic materials 0.000 description 5
- 150000001298 alcohols Chemical class 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000009849 deactivation Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000011800 void material Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000000877 morphologic effect Effects 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- PFNHSEQQEPMLNI-UHFFFAOYSA-N 2-methyl-1-pentanol Chemical compound CCCC(C)CO PFNHSEQQEPMLNI-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 238000006384 oligomerization reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 150000003138 primary alcohols Chemical class 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- RQPSEUKBLZHKRL-UHFFFAOYSA-N 2,2-dimethylbutan-1-ol;2-ethylbutan-1-ol Chemical compound CCC(CC)CO.CCC(C)(C)CO RQPSEUKBLZHKRL-UHFFFAOYSA-N 0.000 description 1
- SMNDYUVBFMFKNZ-UHFFFAOYSA-N 2-furoic acid Chemical compound OC(=O)C1=CC=CO1 SMNDYUVBFMFKNZ-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 235000019577 caloric intake Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006471 dimerization reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000003254 gasoline additive Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000002029 lignocellulosic biomass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- KPSSIOMAKSHJJG-UHFFFAOYSA-N neopentyl alcohol Chemical compound CC(C)(C)CO KPSSIOMAKSHJJG-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
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- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/65—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38, as exemplified by patent documents US4046859, US4016245 and US4046859, respectively
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/08—Silica
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- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/7026—MFS-type, e.g. ZSM-57
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- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
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- B01J37/082—Decomposition and pyrolysis
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- B01J37/10—Heat treatment in the presence of water, e.g. steam
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
- C07C1/24—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms by elimination of water
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
- C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
- C07C5/2767—Changing the number of side-chains
- C07C5/277—Catalytic processes
- C07C5/2775—Catalytic processes with crystalline alumino-silicates, e.g. molecular sieves
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G3/00—Production of liquid hydrocarbon mixtures from oxygen-containing organic materials, e.g. fatty oils, fatty acids
- C10G3/42—Catalytic treatment
- C10G3/44—Catalytic treatment characterised by the catalyst used
- C10G3/48—Catalytic treatment characterised by the catalyst used further characterised by the catalyst support
- C10G3/49—Catalytic treatment characterised by the catalyst used further characterised by the catalyst support containing crystalline aluminosilicates, e.g. molecular sieves
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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
- B01J2219/30—Details relating to random packing elements
- B01J2219/302—Basic shape of the elements
- B01J2219/30296—Other shapes
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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
- B01J2219/30—Details relating to random packing elements
- B01J2219/304—Composition or microstructure of the elements
- B01J2219/30475—Composition or microstructure of the elements comprising catalytically active 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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/30—After treatment, characterised by the means used
- B01J2229/36—Steaming
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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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/60—Synthesis on support
- B01J2229/64—Synthesis on support in or on refractory materials
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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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/55—Cylinders or rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
- C07C2521/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- C07C2521/08—Silica
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2529/00—Catalysts comprising molecular sieves
- C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
- C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- C07C2529/65—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/20—C2-C4 olefins
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/22—Higher olefins
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- 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
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
Definitions
- the present invention relates to a catalyst and an improved process for producing alkenes from a feedstock comprising a primary monoalcohol alone or in admixture, of the formula R-CH 2 -OH, wherein R is a nonlinear alkyl radical of the formula general C n H 2n + i where n is an integer of 3 to 20 (such as isobutanol).
- R is a nonlinear alkyl radical of the formula general C n H 2n + i where n is an integer of 3 to 20 (such as isobutanol).
- This charge can be obtained by chemical processes or by fermentative processes.
- This process uses a catalyst based on a zeolite comprising at least one series of channels whose opening is defined by an 8-atom oxygen ring (8MR), this catalyst having optimized morphological and textural characteristics which allow to operate in the absence of pre-coking.
- 8MR 8-atom oxygen ring
- alkenes obtained in particular isobutene, butene-1 and butenes-2, are of great interest in the field of the petrochemical industry and organic synthesis.
- Isobutene is a key petrochemical molecule especially for the synthesis of gasoline additives such as I ⁇ TBE and MTBE.
- the vast majority of publications focus on the production of isobutene from linear butanols, which are more easily produced than isobutanol by conventional fermentation routes (EBA). Recent developments, however, have greatly improved the fermentative yields of isobutanol, making this load accessible and available at attractive cost.
- WO-2009/079213 describes the sequence of the dehydration reactions of biosourced alcohols (C2-C7) on an acidic catalyst to form olefins followed by the oligomerization of olefins on an acid oligomerization catalyst (zeolite or alumina ).
- the intended application is the preparation of kerosene (or jet fuel in English).
- the document EP-2348005 of the company Total describes the dehydration of alcohols containing from 2 to 10 carbon atoms to the corresponding olefin on a zeolitic catalyst of the FER type with an Si / Al atomic ratio of less than 100.
- the mass hourly space velocity (Weight Hourly Space Velocity according to the English name, or WHSV) compared to the alcohol is at least 4 h 1 and the temperature is 320 to 600 ° C.
- the catalyst may be in the form of pellets, extrudates, spheres, atomized powder or multilobes.
- the document WO-201 1/089235 describes other structural types of zeolite all belonging to the family of zeolites with average channel size (10MR), with an Si / Al molar ratio of less than 100.
- the zeolites may be modified by different post treatments.
- the catalyst is used for the dehydration of alcohols containing from 2 to 10 carbon atoms to the corresponding olefin.
- the document WO-201 1/1 13834 of the company Total describes the simultaneous dehydration and skeletal isomerization of isobutanol in the presence of crystalline silicates catalysts, average channel size (10MR) dealuminized or not dealuminated, modified with phosphorus or not , FER, MWW, EUO, MFS, ZSM-48, MTT, MFI, MEL or TON with Si / Al ratio greater than 10, or silicoaluminophosphate molecular sieves of the AEL group, or silica-, zirconia-, titanium- or fluorine-alumina.
- the WHSV with respect to the alcohol is at least 1 h 1 and the temperature is 200 to 600 ° C.
- n-butenes obtained in the butenes is 58.4% at 375 ° C and high WHSV (12.6 h 1 ) on a powdered Si / Al 33 zeolite FER.
- the catalyst may be in the form of pellets, extrudates, spheres, atomized powder or multilobes.
- the present invention relates to a process for converting an alkene of a nonlinear primary monoalcohol with a zeolitic catalyst.
- An object of the invention is to improve the performance of the conversion process and the catalyst.
- the invention aims to optimize the selectivity to alkenes and in particular the selectivity to linear alkene.
- the invention also seeks to improve the stability of the catalyst.
- the invention relates to a process for the isomerizing dehydration of a feedstock comprising a primary monoalcohol alone or in a mixture, of formula R-CH 2 -OH, in which R is a nonlinear alkyl radical of general formula C n H 2n + i where n is an integer of between 3 and 20, said process comprising an isomerization dehydration step operated in the gas phase, at a weighted average temperature of between 250 and 460 ° C., at a pressure of between 0.2 MPa and 1 MPa, at a weight hourly space velocity (PPH) of between 1 and 25 h 1 , in the presence of a catalyst comprising at least one zeolite and at least one binder, the weight content T z of zeolite is 55-90% by weight relative to the total weight of said catalyst and wherein said zeolite has at least one series of channels whose opening is 8 oxygen atoms (8MR), said binder having a pore volume of between 0.5 and 0.9 ml
- Vp 0.0014Tz -0.0006, the micropores having a diameter of less than 2 nm
- Tz is expressed in% wt and the porous volumes in ml / g
- the present invention also relates to a catalyst comprising at least one zeolite and at least one binder, the weight content T z of zeolite is 50-90 wt%, said binder having a pore volume of between 0.5 and 0.9 ml / g, a catalyst in which at least one zeolite has at least one series of channels, the opening of which is 8 oxygen atoms (8MR), the catalyst being in multilobe form and having
- VM 0.0101Tz - 0.5375, the macropores having a diameter greater than 50 nm and less than 7000 nm,
- Vp 0.0014Tz -0.0006, the micropores having a diameter of less than 2 nm
- Tz is expressed in% wt and the porous volumes in ml / g
- such a catalyst having the particular morphological (geometric shape) and textural (porosity) characteristics of the invention makes it possible to obtain improved performances.
- a catalyst makes it possible to achieve a proportion of linear alkenes in the alkenes fraction much greater than the value expected at thermodynamic equilibrium.
- the catalyst according to the invention is little deactivated compared to previous catalysts, which notably improves the performance over time in terms of conversion.
- the pore volume of the binder corresponds to the total pore volume of the solid used as binder. It is measured by the analysis of the nitrogen adsorption isotherm, detailed below.
- the expression "between ... and " means that the limit values of the range are included in the range of values described. If this were not the case and the limit values were not included in the described range, such precision will be provided by the present invention.
- the invention relates to a process for the isomerizing dehydration of a feedstock comprising a primary monoalcohol alone or in a mixture, of formula R-CH 2 -OH, in which R is a nonlinear alkyl radical of general formula C n H 2n + i where n is an integer of between 3 and 20 (such as isobutanol), said process comprising an isomerization dehydration step operated in the gas phase, at a weighted average temperature of between 250 and 460 ° C., at a pressure of between 0.degree.
- a catalyst comprising at least one zeolite and at least one binder, whose weight content Tz in zeolite is from 55 to 90% by weight relative to the total weight of said catalyst and wherein said zeolite has at least one series of channels whose opening is 8 oxygen atoms (8MR), said binder having a pore volume of between 0, 5 and 0.9 ml / g, the catalyst being multilobed form and presenting:
- Tz is expressed in% wt and the porous volumes in ml / g
- the mesoporous and macroporous volumes of the catalyst which respectively correspond to the volume occupied by the mesopores having a diameter of 3.6 nm to 50 nm and the volume occupied by the macropores having a diameter greater than 50 nm and less than 7000 nm, are measured. by mercury porosimeter intrusion according to ASTM D4284-83 at a maximum pressure of 4000 bar, using a surface tension of 484 dyne / cm and a contact angle of 141 °. The wetting angle was taken equal to 1 10 ° following the recommendations of the book "Techniques of the engineer, treated analysis and characterization", 1050, J. Charpin and B. Rasneur.
- the mercury volume value in ml / g given in the following text corresponds to the value of the total mercury volume in ml / g measured on the sample minus the mercury volume value in ml / g. measured on the same sample for a pressure corresponding to 30 psi (about 2 bar).
- the microporous volume, in particular of the catalyst formed, is measured by the analysis of the nitrogen adsorption isotherm.
- the microporous volume of the catalyst according to the invention corresponds to the volume occupied by the pores with a diameter of less than 2 nm.
- the isothermal nitrogen adsorption analysis corresponding to the physical adsorption of nitrogen molecules in the porosity of said solid via a progressive increase in the pressure at constant temperature provides information on the textural characteristics (pore diameter, porosity type, specific surface) of the zeolitic solid contained in the catalyst used according to the invention. In particular, it provides access to the specific surface, the microporous volume and the porous distribution of said solid.
- specific surface area is meant the BET specific surface area (S B AND in m 2 / g) determined by nitrogen adsorption in accordance with the ASTM-D-3663-78 standard established from the BRUNAUER-EMMETT-TELLER method described in the periodical "The Journal of the American Society", 1938, 60, 309.
- the exposed geometric surface is calculable by those skilled in the art, it is the ratio between the external geometric surface (which is not the BET specific surface area) of the catalyst to the volume of the catalyst loaded in the reactor.
- V calculated volume of an extruded
- the external geometric surface corresponds to the geometrical surface of the catalyst bed expressed relative to the volume occupied by the same catalyst bed.
- this geometrical surface corresponds to the external geometrical surface (or area) relative to the volume of the catalytic bed in the reactor.
- the filling density of the catalyst for example when loaded into a reactor, is measured (ASTM-D-7481 -09) for particles up to 3.5 mm.
- the vacuum content in the catalyst bed is deduced by referring, for example, to "Contact catalysis: design, preparation and use of industrial catalysts", J. F. Le Page, page 209.
- the process according to the invention makes it possible to obtain, at the end of the reaction step, an effluent comprising a proportion of linear alkenes beyond that expected if we consider the thermodynamic equilibrium between the alkenes at room temperature. reactor outlet. It is obtained an excellent conversion of the alcohol (greater than 97 mol%) and a very good selectivity in total alkenes (greater than 97 mol%).
- the filler treated in the process according to the invention is a filler comprising a primary monoalcohol alone or in a mixture, of formula R-CH 2 -OH, in which R is a nonlinear alkyl radical of general formula C n H 2n + i wherein n is an integer between 3 and 20 (such as isobutanol).
- alkyl denotes a hydrocarbon compound of general formula C n H 2n + i where n is an integer between 3 and 20, preferably between 3 and 10, preferably between 3 and 5.
- the filler comprises from 40 to 100% by weight of said primary monoalcohol.
- isobutanol As primary monoalcohol according to the invention, mention may be made of isobutanol; 2-methylbutan-1-ol; 2,2-dimethylpropan-1-ol; 2-methylpentan-1-ol; 2,2-dimethylbutan-1-ol; 2-ethylbutan-1-ol. They can be alone or in mixture.
- Said primary monoalcohol is preferably isobutanol or 2-methyl-1-butanol, taken alone or as a mixture.
- said alcohol is essentially isobutanol, preferably the only primary monoalcohol is isobutanol.
- Said feedstock can come from chemical or biochemical processes, for example fermentation processes.
- this feedstock can be derived from fermentation processes of lignocellulosic biomass.
- Said filler may contain water, especially up to 60% water. It may also comprise impurities of mineral type (such as Na, Ca, P, Al, Si, K, SO 4 ) and of organic type (such as methanol, ethanol, n-butanol, aldehydes, ketones, and the corresponding acids, for example furanic acid, acetic acid, isobutyric acid).
- mineral type such as Na, Ca, P, Al, Si, K, SO 4
- organic type such as methanol, ethanol, n-butanol, aldehydes, ketones, and the corresponding acids, for example furanic acid, acetic acid, isobutyric acid.
- the process according to the invention comprises an isomerization dehydration step operated in the gas phase, at a weighted average temperature of between 250 and 460 ° C., preferably between 250 and 400 ° C., or even 250 ° -375 ° C., at a pressure comprised between between 0.2 MPa and 1 MPa, at a weight hourly space velocity (PPH) of between 1 and 25 h 1 , preferably 1 and 20 h 1 , in the presence of the catalyst according to the invention.
- PPH weight hourly space velocity
- Said catalyst is arranged in one or more fixed beds, which can be operated in ascending, descending or radial flow.
- PPH Weight per Weight per Hour
- weight hourly space velocity PPH
- WHSV Weight Hourly Space Velocity
- TMP Weighted average temperature
- the weighted average temperature will be representative of the reaction temperature.
- the reaction takes place in one or more reactors and each reactor is operated under clean or identical conditions.
- the choice of operating conditions (pressure, TMP temperature, residence time) of each reactor is a function of the objective of conversion of the charge and selectivity to linear olefins desired.
- the TMP of each of the reactors is adjusted to a value between 275 ° C and 460 ° C.
- the term "the reactor” designates both the reactor of this step when it comprises only one reactor, that each of the reactors of this step, when it comprises more than one reactor. a reactor.
- Said catalyst is arranged in one or more fixed beds, which can be operated in ascending, descending or radial flow.
- the calorie intake is achieved by any heating means known to those skilled in the art.
- the catalyst is activated by any means known to those skilled in the art, for example by heat treatment in air.
- the catalyst used comprises at least one zeolite, said zeolite having at least one series of channels whose opening is defined by an 8-atom oxygen ring (8MR) as defined in the classification.
- 8MR 8-atom oxygen ring
- This zeolite is shaped with a binder, preferably silicic, with a multilobe geometry, preferably trilobed or quadrilobe, the material obtained has suitable porous volumes.
- Multilobe catalyst means a catalyst having at least 3 lobes. It can be advantageously a trilobed or a quadrilobe, and preferably a quadrilobe.
- a quadrilobe catalyst has 4 lobes and the cross section is generally in a circumscribed circle of diameter 1 mm to 9 mm, or in an oval whose main axis is from 2 mm to 9 mm and the secondary axis of 1, 2 mm at 7 mm.
- the cross-section is generally in a circumscribed circle of diameter 1, 6 mm or in an oval whose main axis is from 1.2 to 2 mm and the secondary axis from 1.2 to 1.6 mm.
- the catalyst is in the form of a quadrilobe and has a diameter relative to the circumscribed circle of between 1 mm and 9 mm, preferably between 1 mm and 5 mm, preferably between 1, 2 and 3 mm, and even more preferably between 1, 2 and 2 mm.
- said zeolite may also advantageously contain at least one series of channels whose pore opening is defined by a ring containing 10 oxygen atoms (10 MR).
- Said zeolite is advantageously chosen from zeolites having 8 and 10MR channels such as zeolites of structural type FER and MFS, taken alone or as a mixture.
- the zeolite is more advantageously selected in the FER type from zeolites ferrierite, FU-9, ISI-6, NU-23, ZSM-35 and for the MFS type, it is zeolite ZSM-57, taken alone or in mixture.
- Said zeolite is very advantageously of the FER type and preferably it is ferrierite.
- said zeolite is made of ferrierite.
- the ferrierite has an Si / Al molar ratio of from 8 to 70, preferably from 15 to 70, preferably from 20 to 50 or from 10 to 50.
- the content of said zeolite in the catalyst is 55-90% by weight, preferably between 60 and 80% by weight relative to the total weight of the catalyst.
- the zeolite is shaped with said binder, advantageously inert. Indeed, since the zeolite can not be used industrially in powder form, the binder makes it possible to confer on the final solid an increased resistance in the presence of water. The binder also allows the use of the catalyst thus constituted in a fixed bed in a reactor without giving too much pressure loss.
- the binder has a pore volume of between 0.5 and 0.9 ml / g, preferably between 0.6 and 0.8 ml / g.
- the pore volume of the binder corresponds to the total pore volume of said binder, in particular to the volume occupied by the meso- and micropores present in the solid binder. It is measured by the analysis of the nitrogen adsorption isotherm.
- the binder consists of several sources (a number i of sources, i being an integer greater than or equal to 2)
- the pore volume of the binder according to the invention is the total pore volume resulting from the sum of the pore volumes Vi of different sources weighted by the weight fractions (Xi) of said i sources constituting the binder.
- Vp (binder) ⁇ Xi x Vi
- Vp binder
- the binder is advantageously a compound that is inert for the intended reaction (isomerizing dehydration of a primary alcohol).
- the binder is preferably a silicic binder, AIPO 4 , a clay, a zirconia, a Ti oxide, SiC, or mixtures thereof. Very preferably, it is a silicic binder.
- the silicic binder consists essentially of silica, that is to say that the silicic binder consists of silica with impurities, these having no catalytic effect.
- said silica is an amorphous silica.
- the silicic binder is advantageously composed of a source of silica or a mixture of silicas.
- the binder content in the catalyst is between 10 and 45 wt%, preferably between 20 and 40 wt%.
- the catalyst consists of at least one zeolite having at least one series of channels whose opening is 8 oxygen atoms (8MR) and a silicic binder.
- said catalyst consists of zeolite ferrierite and silicic binder.
- said catalyst consists of zeolite ferrierite and silica, and in particular amorphous silica.
- the catalyst is shaped (extruded) in a multilobe geometry.
- the catalyst does not include metals.
- the expression "no metals” is understood to mean that there are no metals added during the preparation. It is also understood that there may be impurities in the binders and therefore in small amounts. In general there is no aluminum or iron in the silica.
- the process of the invention operates with a catalyst having a particular porosity, which gives it its performance. It has been observed that there is a linear relationship between the pore volume and the zeolite content, a relationship that is valid in a certain field, or even the different domains, of porous volumes.
- the catalyst has a porosity such that:
- Tz is expressed in% wt and the pore volumes in ml / g.
- This catalyst also has an exposed geometric area of 2700 to 1000 m 2 / m 3 of catalyst bed volume, and preferably 2800 and 9000 m 2 / m 3 .
- the catalyst consists of at least one zeolite having at least one series of channels whose opening is at 8 oxygen atoms (8MR) and a silicic binder having a pore volume of between 0.5 and 0.9 ml / g.
- said catalyst consists of ferrierite zeolite and silicic binder having a pore volume of between 0.5 and 0.9 ml / g.
- said catalysts are in trilobed or quadrilobic form, and preferably in a quadrilobe form.
- the silicic binder consists essentially of silica and the catalyst is in quadrilobe form having a diameter relative to the circumscribed circle of between 1 mm and 5 mm, preferably between 1, 2 and 3 mm.
- this catalyst does not include metals.
- a catalyst having such morphological and textural characteristics makes it possible to improve the isomerically dehydrating performance of a primary alcohol.
- Such a catalyst also has improved deactivation stability. It can also advantageously operate in the absence of pre-coking.
- step b) a kneading step of the mixture obtained at the end of step a), in the presence of addition of solvent, advantageously of an aqueous solution, preferably water, and optionally of peptizing agent, until obtaining a pasty mixture;
- solvent advantageously of an aqueous solution, preferably water, and optionally of peptizing agent, until obtaining a pasty mixture;
- step c) a multilobal shaping step of the pasty mixture obtained at the end of step b), for example by extrusion using a die of suitable geometry; d) a step of drying the shaped material obtained at the end of step c), advantageously at a temperature of between 50 and 200 ° C., preferably between 80 and 150 ° C, advantageously for a period of between 1 and 24 hours, and advantageously under air;
- the binder (and especially the silicic binder) used in step a) is well known to those skilled in the art.
- the binder powder (and in particular of silicic binder) contributes to controlling the porosity of the final solid.
- a source of silicic binder may be a precipitated silica or a silica derived from by-products such as fly ash, for example silico-aluminous or silico-calcic particles, and silica fumes. It is advantageous to use a colloidal silica, for example in the form of a stabilized suspension.
- the zeolite powder and the binder are advantageously kneaded in the presence of a solvent (step b), preferably in the presence of an aqueous solution, and even more preferably in the presence of of water, in which a peptizing agent can advantageously be dissolved in order to obtain a better dispersion of the binder.
- a solvent advantageously of aqueous solution, added is between 20 and 40% by weight, preferably between 25 and 35% by weight and more preferably between 28 and 34% by weight of the total weight of the mixture composed of the zeolite powder, binder, solvent and optionally the peptizing agent.
- the consistency of the dough is adjusted through the amount of solvent.
- the loss on ignition of the dough (or pasty mixture) obtained at the end of step b) in the preparation process according to the invention varies between 20 and 50%, preferably between 25 and 45%, and even more preferably between 30 and 40%.
- loss of ignition on fire is understood to mean the mass loss experienced by a solid compound, a mixture of solid compounds or a paste, during a heat treatment at 1000 ° C. for 2 hours, in an oven static (muffle furnace type), relative to the mass of the solid compound, the mixture of solid compounds or the initial paste (e).
- the loss on ignition generally corresponds to the loss of solvent (such as water) contained in the solids and from the solvent added to form the paste but also to the elimination of volatile organic compounds contained in the inorganic solid constituents.
- the peptising agent optionally used in step b) of the process for preparing the catalyst according to the invention may advantageously be an organic or inorganic acid or base, such as acetic acid, hydrochloric acid or sulfuric acid. , formic acid, citric acid and nitric acid, alone or as a mixture, ammonia, an amine, a quaternary ammonium compound, chosen from alkyl-ethanol amines or ethoxylated alkylamines, tetraethylammonium hydroxide (TEAOH) and tetramethylammonium.
- acetic acid such as acetic acid, hydrochloric acid or sulfuric acid.
- formic acid, citric acid and nitric acid alone or as a mixture
- ammonia an amine
- a quaternary ammonium compound chosen from alkyl-ethanol amines or ethoxylated alkylamines, tetraethylammonium hydroxide (TE
- step c) shaping the kneaded paste is extruded through a die whose geometry will impose the shape of the catalyst.
- the process for preparing the catalyst may further comprise a "steaming" step, or thermal treatment under water vapor, carried out at the end of the preparation process according to the invention, that is to say after step d) drying or after the step (s) optional (s) of calcination e) and / or heat treatment f) the catalyst preparation process according to the invention.
- This optional step of "steaming", if it is integrated in the preparation process according to the invention, is carried out under water vapor, in particular without third carrier gas, at a temperature of between 250 and 400 ° C., preferably between 300 and 350 ° C, at a pressure greater than 4 bar absolute (that is to say 0.4 MPa abs.) And preferably less than or equal to 15 bar absolute (that is to say 1, 5 MPa abs.), And at an injected water flow rate corresponding to the hourly mass of water relative to the catalyst mass (PPH) of between 3 and 9 h 1 , preferably between 5 and 7 h 1 .
- PPH catalyst mass
- porous volumes were measured according to the mercury porosimeter intrusion and nitrogen adsorption isotherm methods described previously in the present text, which explains the deviations from the calculated volumes according to the given formulas. but which remain in the gap interval of 20%.
- Catalyst A is prepared by comalaxing 70% by weight of commercial ferrierite in ammonium form having an Si / Al atomic ratio of 20, of 9% by weight of a source of silica, in powder form, with a pore volume of 1, 54 ml / g and 21% by weight of a source of silica, in powder form, with a pore volume equal to 0.312 ml / g.
- the binder used to prepare the catalyst A is a silicic binder, in the form of a powder, composed of 30% by weight of the silica source with a porous volume of 1.54 ml / g and 70% by weight of the silica source with a porous volume.
- the two silica powders are mixed with the zeolite.
- a basic aqueous solution containing TEAOH (tetraethylammonium hydroxide) is then added to the powder mixture, which is then kneaded to form a paste, so that: the TEAOH content in the zeolite + silica powders mixture is 2.5% by weight and the PAF of the paste obtained is 37%.
- TEAOH tetraethylammonium hydroxide
- the solid was extruded in quadrilobial form with a diameter of 1.6 mm, dried at 80 ° C. for 12 hours and then calcined in moist air (6% v / v, volume of water relative to the volume of complete gaseous effluent) for 2 hours. h at 600 ° C.
- Catalyst A obtained has an SBET surface area of 300 m 2 / g, a mesoporous volume of 0.24 ml / g, macroporous of 0.16 ml / g and microporous of 0.097 ml / g.
- the exposed and calculated geometrical surface is 3404 m 2 / m 3, for a catalytic bed void ratio of 38.5% and an average length of 3.5 mm.
- Catalyst B is prepared by comalaxing 70% by weight of commercial ferrierite in ammonium form having an Si / Al atomic ratio of 20, and 30% by weight of a silica source in powder form and having a pore volume equal to 0.312. ml / g.
- the silicic binder is mixed with the zeolite.
- a basic aqueous solution containing TEAOH is added to the mixture of powders which is then kneaded to form a paste, so that: TEAOH content in the mixture of zeolite + silica powders is 2.5% by weight and the PAF of the paste obtained is 34%.
- the solid was extruded in cylindrical form with a diameter of 2.1 mm, dried at 80 ° C. for 12 hours and then calcined in moist air (6% v / v, volume of water relative to the volume of complete gaseous effluent) for 2 hours. h at 600 ° C.
- the catalyst B obtained has an SBET surface area of 280 m 2 / g, a mesoporous volume of 0.14 ml / g, macroporous of 0.21 ml / g and microporous of 0.094 ml / g.
- the exposed and calculated geometrical surface is 1535 m 2 / m 3, for a catalytic bed void ratio of 38.5% and an average length of 3.5 mm.
- Catalyst C is prepared by comalaxing 70% by weight of commercial ferrierite in ammonium form having an Si / Al atomic ratio of 20 and 30% by weight of a source of silica in powder form and with a pore volume equal to 0.312 ml / boy Wut.
- the silicic binder and the zeolite are mixed.
- a basic aqueous solution containing TEAOH is added to the powder mixture which is then kneaded to form a paste, so that: the TEAOH content in the zeolite + silica powder mixture is 2.5% weight and the PAF of the paste obtained is 35.5%.
- the solid was extruded in trilobal form with a diameter of 2.1 mm, dried at 80 ° C. for 12 hours and then calcined in moist air (6% v / v, volume of water relative to the volume of complete gaseous effluent) for 2 hours. h at 600 ° C.
- Catalyst C obtained has a surface area SBET of 333 m 2 / g, a mesoporous volume of 0.15 ml / g, macroporous of 0.13 ml / g and microporous of 0.102 ml / g.
- the exposed and calculated geometric area is 2270 m 2 / m 3, for a catalyst bed vacuum of 38.5% and an average length of 3.5 mm.
- Catalyst D is prepared by comalaxing 70% by weight of commercial ferrierite in ammonium form having an Si / Al atomic ratio of 20, of 11% by weight of a source of silica with a pore volume equal to 1.54 ml / g and 19% by weight of a porous volume silica source equal to 0.312 ml / g.
- the binder used to prepare the catalyst D is therefore a silicic binder, in the form of a powder, composed of approximately 36.7% by weight of the porous volume silica source 1, 54 ml / g and 63.3% by weight of the porous volume silica source equal to 0.312 ml / g.
- TEAOH tetraethylammonium
- the catalyst D obtained has a SBET surface area of 341 m 2 / g, a mesoporous volume of 0.19 ml / g, macroporous of 0.19 ml / g and microporous of 0.101 ml / g.
- the exposed and calculated geometric area is 2871 m 2 / m 3, for a catalytic bed void ratio of 38.5% and an average length of 3.5 mm.
- Catalyst E is prepared by comalaxing 70% by weight of commercial ferrierite in ammonium form having an Si / Al atomic ratio of 20 and 30% by weight of silica with a pore volume equal to 0.377 ml / g.
- the silica is mixed with the zeolite.
- a basic aqueous solution containing TEAOH is added and the mixture is kneaded to form a paste.
- the addition of the aqueous solution is such that the content of TEAOH (tetraethylammonium hydroxide) in the mixture of zeolite + silica powders is 2.5% by weight and the PAF of the paste obtained is 33%.
- the solid was extruded in quadrilobial form with a diameter of 1.6 mm, dried at 80 ° C. for 12 hours and then calcined in moist air (6% v / v, volume of water relative to the volume of complete gaseous effluent) for 2 hours. h at 600 ° C.
- the catalyst E obtained has a SBET surface area of 326 m 2 / g, a mesoporous volume of 0.17 ml / g, macroporous of 0.27 ml / g and microporous of 0.097 ml / g.
- the exposed and calculated geometrical surface is 3404 m 2 / m 3, for a catalytic bed void ratio of 38.5% and an average length of 3.5 mm.
- Example 6 Catalytic Test: Dehydration of an Isobutanol Charge / Monophasic Water in the Presence of Catalysts A, B, C, D and E.
- the dehydration step is performed on a catalytic test unit comprising a fixed bed operating in "down flow" mode, that is to say in downflow mode.
- the catalyst is loaded into a 316L stainless steel reactor with an internal diameter of 13 mm.
- the catalyst is then activated at 450 ° C. under 6 l / h of air for a period of one hour after a rise in temperature of 10 ° C / min.
- the temperature is then lowered to the test temperature under 6 l / h of nitrogen in order to remove the air present in the system before injection of the alcohol charge.
- the feed is vaporized in the lines heated to 150-180 ° C upstream of the reactor and then injected into the catalytic reactor.
- the operating conditions are: weighted average temperature of 300 ° C, WHSV (weight of filler per weight of catalyst per gram) of 7h 1 for 24 h and then 12 1 for 48 h and then 20h 1 for 72 h, then again at pph 7h 1 for 24h (return point).
- the analysis of the total effluent is carried out at the outlet of the reactor on an in-line gas chromatograph equipped with two columns, which makes it possible to determine the conversion of isobutanol, the selectivities into different products and in particular the butene selectivity. and the fraction of linear butenes in the butene section, a fraction that is sought to maximize.
- the analyzer also makes it possible to measure the selectivity of secondary products such as propene or products containing 5 or more carbon atoms.
- the measurement of the average conversion achieved during the 24h of the return point is compared to the average conversion during the first 24 hours at PPH 7h 1 and makes it possible to evaluate the loss of activity during the test.
- the determination of the deactivation slope on the conversion curve of the monohydric alcohol to PPH of 20h 1 makes it possible to evaluate and compare the stability of the catalysts under deactivating conditions. It is expressed as a loss of% alcohol converted per hour.
- the catalysts according to the invention A and D show virtually no deactivation at the return point, their deactivation rate is lower under the high PPH condition than that of the catalysts B, C and E. Their stability is thus improved compared with the catalysts B , C and E. Their selectivity to linear butenes is improved.
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US17/050,155 US11618721B2 (en) | 2018-04-25 | 2019-04-04 | Method for isomerising dehydration of a non-linear primary monoalcohol on a quadrilobed iron zeolite catalyst |
EP19714216.9A EP3784389A1 (fr) | 2018-04-25 | 2019-04-04 | Procede de deshydratation isomerisante de monoalcool primaire non lineaire sur un catalyseur zeolithique quadrilobe de type fer |
BR112020021110-9A BR112020021110A2 (pt) | 2018-04-25 | 2019-04-04 | processo de desidratação isomerisante de monoálcool primário não linear sobre um catalisador zeolítico com quadrilobulados do tipo férrico |
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FR1853627A FR3080546B1 (fr) | 2018-04-25 | 2018-04-25 | Procede de deshydratation isomerisante de monoalcool primaire non lineaire sur un catalyseur zeolithique quadrilobe de type fer |
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WO2024042194A1 (fr) * | 2022-08-25 | 2024-02-29 | IFP Energies Nouvelles | Procédé de déshydratation d'une charge comprenant un alcool pour la production d'alcènes |
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WO2009079213A2 (fr) | 2007-12-03 | 2009-06-25 | Gevo, Inc. | Compositions renouvelables |
EP2348005A1 (fr) | 2010-01-22 | 2011-07-27 | Total Petrochemicals Research Feluy | Déshydratation d'alcools sur des silicates cristallins de structure de fer |
WO2011089235A1 (fr) | 2010-01-22 | 2011-07-28 | Total Petrochemicals Research Feluy | Déshydratation d'alcools sur un silicate cristallin à faible rapport si/al |
WO2011113834A1 (fr) | 2010-03-15 | 2011-09-22 | Total Petrochemicals Research Feluy | Déshydratation et isomérisation squelettale simultanées d'isobutanol sur des catalyseurs acides |
WO2016046242A1 (fr) * | 2014-09-26 | 2016-03-31 | IFP Energies Nouvelles | Procede de deshydratation isomerisante d'une charge alcool primaire substitue en position 2 par un groupement alkyl sur un catalyseur comprenant une zeolithe de type fer |
WO2018087033A1 (fr) * | 2016-11-08 | 2018-05-17 | IFP Energies Nouvelles | Procede de deshydratation isomerisante d'une charge alcool primaire non lineaire en presence d'injection d'eau et d'un catalyseur comprenant une zeolithe de type fer ou mfs |
WO2018087032A1 (fr) * | 2016-11-08 | 2018-05-17 | IFP Energies Nouvelles | Procédé de déshydratation isomérisante de monoalcools primaires non linéaires sur catalyseur zéolithique dopé d'alcalin |
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2018
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2019
- 2019-04-04 EP EP19714216.9A patent/EP3784389A1/fr active Pending
- 2019-04-04 BR BR112020021110-9A patent/BR112020021110A2/pt active IP Right Grant
- 2019-04-04 US US17/050,155 patent/US11618721B2/en active Active
- 2019-04-04 WO PCT/EP2019/058454 patent/WO2019206591A1/fr unknown
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WO2009079213A2 (fr) | 2007-12-03 | 2009-06-25 | Gevo, Inc. | Compositions renouvelables |
EP2348005A1 (fr) | 2010-01-22 | 2011-07-27 | Total Petrochemicals Research Feluy | Déshydratation d'alcools sur des silicates cristallins de structure de fer |
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WO2018087032A1 (fr) * | 2016-11-08 | 2018-05-17 | IFP Energies Nouvelles | Procédé de déshydratation isomérisante de monoalcools primaires non linéaires sur catalyseur zéolithique dopé d'alcalin |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2024042194A1 (fr) * | 2022-08-25 | 2024-02-29 | IFP Energies Nouvelles | Procédé de déshydratation d'une charge comprenant un alcool pour la production d'alcènes |
FR3139140A1 (fr) * | 2022-08-25 | 2024-03-01 | IFP Energies Nouvelles | Procédé de déshydratation d’une charge comprenant un alcool pour la production d’alcènes |
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FR3080546A1 (fr) | 2019-11-01 |
BR112020021110A2 (pt) | 2021-02-17 |
FR3080546B1 (fr) | 2022-12-16 |
US20210078919A1 (en) | 2021-03-18 |
US11618721B2 (en) | 2023-04-04 |
EP3784389A1 (fr) | 2021-03-03 |
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