WO2022129298A1 - Procédé complet de grillage ou de régénération de catalyseurs - Google Patents
Procédé complet de grillage ou de régénération de catalyseurs Download PDFInfo
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- WO2022129298A1 WO2022129298A1 PCT/EP2021/086124 EP2021086124W WO2022129298A1 WO 2022129298 A1 WO2022129298 A1 WO 2022129298A1 EP 2021086124 W EP2021086124 W EP 2021086124W WO 2022129298 A1 WO2022129298 A1 WO 2022129298A1
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- WIPO (PCT)
- Prior art keywords
- catalysts
- furnace
- zone
- oxygen
- roasting
- Prior art date
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- 239000003054 catalyst Substances 0.000 title claims abstract description 218
- 238000000034 method Methods 0.000 title claims abstract description 71
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000001301 oxygen Substances 0.000 claims abstract description 77
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 77
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 27
- 239000011593 sulfur Substances 0.000 claims abstract description 27
- 239000003208 petroleum Substances 0.000 claims abstract description 26
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims description 53
- 238000006243 chemical reaction Methods 0.000 claims description 38
- 239000007789 gas Substances 0.000 claims description 11
- 238000006477 desulfuration reaction Methods 0.000 claims description 9
- 230000023556 desulfurization Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 159000000011 group IA salts Chemical class 0.000 claims description 5
- 238000005262 decarbonization Methods 0.000 claims description 3
- 230000003009 desulfurizing effect Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 20
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 20
- 239000011733 molybdenum Substances 0.000 abstract description 20
- 230000008929 regeneration Effects 0.000 description 27
- 238000011069 regeneration method Methods 0.000 description 27
- 238000011084 recovery Methods 0.000 description 19
- 229910052720 vanadium Inorganic materials 0.000 description 17
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- 238000002485 combustion reaction Methods 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 13
- 229910002091 carbon monoxide Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 150000002739 metals Chemical class 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 9
- 238000000859 sublimation Methods 0.000 description 8
- 230000008022 sublimation Effects 0.000 description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 159000000000 sodium salts Chemical class 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 230000008030 elimination Effects 0.000 description 5
- 238000003379 elimination reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000013626 chemical specie Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 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 2
- AFTDTIZUABOECB-UHFFFAOYSA-N [Co].[Mo] Chemical compound [Co].[Mo] AFTDTIZUABOECB-UHFFFAOYSA-N 0.000 description 2
- VDSREIHVGSWINN-UHFFFAOYSA-N [V].[Mo].[Ni] Chemical compound [V].[Mo].[Ni] VDSREIHVGSWINN-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PTISTKLWEJDJID-UHFFFAOYSA-N sulfanylidenemolybdenum Chemical compound [Mo]=S PTISTKLWEJDJID-UHFFFAOYSA-N 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052961 molybdenite Inorganic materials 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- CMZUMMUJMWNLFH-UHFFFAOYSA-N sodium metavanadate Chemical compound [Na+].[O-][V](=O)=O CMZUMMUJMWNLFH-UHFFFAOYSA-N 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 229910000166 zirconium phosphate Inorganic materials 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1812—Tubular reactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/28—Moving reactors, e.g. rotary drums
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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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/882—Molybdenum and cobalt
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/883—Molybdenum and nickel
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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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8877—Vanadium, tantalum, niobium or polonium
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/90—Regeneration or reactivation
- B01J23/94—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the iron group metals or copper
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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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
- B01J27/047—Sulfides with chromium, molybdenum, tungsten or polonium
- B01J27/051—Molybdenum
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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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
- B01J27/047—Sulfides with chromium, molybdenum, tungsten or polonium
- B01J27/051—Molybdenum
- B01J27/0515—Molybdenum with iron group metals or platinum group metals
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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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/28—Regeneration or reactivation
- B01J27/30—Regeneration or reactivation of catalysts comprising compounds of sulfur, selenium or tellurium
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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
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/02—Heat treatment
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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
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
- B01J38/12—Treating with free oxygen-containing gas
- B01J38/22—Moving bed, e.g. vertically or horizontally moving bulk
- B01J38/24—Moving bed, e.g. vertically or horizontally moving bulk having mainly transverse, i.e. lateral, flow of oxygen-containing gas and material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/06—Rotary-drum furnaces, i.e. horizontal or slightly inclined adapted for treating the charge in vacuum or special atmosphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/12—Rotary-drum furnaces, i.e. horizontal or slightly inclined tiltable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/2075—Removing incrustations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/36—Arrangements of air or gas supply devices
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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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00132—Controlling the temperature using electric heating or cooling elements
Definitions
- the present invention relates to an industrial furnace and a process for roasting or regenerating catalysts, and in particular spent petroleum catalysts. This is in particular a process for roasting or regenerating used hydrodesulphurization catalysts.
- Revolving tray ovens consist of a cylindrical enclosure whose axis is vertical, this enclosure contains several superimposed and fixed trays. Arms are linked to a shaft positioned in the vertical axis of the oven, the shaft is driven by a rotational movement which makes the arms mobile in relation to the trays of the oven. This arrangement allows mixing of the bed of catalysts contained in the oven. The catalysts are introduced into the furnace in the upper part, then under the action of the mobile arms and passage holes in the plates, the catalysts fall from one plate to the other until they reach the base of the furnace where they are extracted.
- a variant of this oven is that the trays are linked to the central shaft to be rotated and the arms are fixed.
- the trays are covered with refractory bricks. Burners are arranged on the periphery of the circular enclosure in fixed refractory brickwork which closes the furnace.
- this type of oven is mainly dedicated to the roasting of RDS / VRDS catalysts, according to the following process: before roasting and during roasting, the grains of catalysts are intimately mixed with a sodium salt (NasCOs type). After introducing this mixture into the roasting oven at low temperature ( ⁇ 650°C), the sodium salt reacts with the vanadium to form a sodium vanadate (NasVC ) and thus avoid the phenomenon of liquefaction of the vanadium oxide which occurs at 670°C. As a result, this process allows a recovery rate of vanadium> 80%. On the other hand, the addition of sodium salt has no effect on the sublimation of M0S2.
- tray furnace technology could be suitable for roasting HDS catalysts, but the value of the recovered metals does not cover the production costs associated with this type of furnace.
- the catalysts to be roasted are introduced at the top of the furnace without adding any reagent. Under the effect of the heat delivered by the burners, the carbon is rapidly eliminated in the form of CO/CO2.
- the conversion reaction of M0S2 to M0O3 occurs then it is only thermally activated. As the heat is dissipated along the length of the furnace, the conversion reaction is less and less active with the distance from the burners. The only way to activate the conversion reaction is to increase the heat emitted by the burners with the consequence of a significant loss of molybdenum by vaporization of M0S2.
- the sulfur is partially removed, typically with a residual sulfur content of 2 to 3% by weight, which has a negative effect on the yield of the upgraded molybdenum.
- the catalysts to be roasted are introduced at the top of the furnace after having been intimately mixed with a sodium salt (NasCOs type) for the same reason. than that given previously.
- This process has the advantage of a simple oven technology, but also has the following limitations:
- JP 2012/126927 describes a process in which an alkali metal compound (sodium) is added during the treatment of used catalysts containing molybdenum and/or vanadium, and sulphur.
- the process is implemented in a rotary tube furnace, comprising a single air inlet located at one end of the furnace, opposite the inlet of the used catalysts.
- the inventors are not aware of the existence of processes for roasting used petroleum catalysts which would also make it possible to regenerate them.
- the present invention aims to solve the technical problem of providing an industrial furnace and an industrial process, in particular for roasting or regenerating hydrodesulphurization catalysts. We are talking about a furnace and a process for roasting or regenerating catalysts.
- the object of the present invention is in particular to solve the technical problem consisting in providing an industrial furnace and an industrial process, for the roasting or the regeneration in particular of HDS catalysts (molybdenum-cobalt and molybdenum-nickel) and/or RDS / VRDS (molybdenum-nickel-vanadium).
- HDS catalysts molybdenum-cobalt and molybdenum-nickel
- RDS / VRDS mobdenum-nickel-vanadium
- Another object of the present invention is to solve the technical problem of providing an industrial furnace and an industrial process for upgrading molybdenum in used catalysts, in particular for hydrodesulphurization, and even more particularly of the HDS type.
- Another object of the present invention is to solve the technical problem consisting in providing an industrial furnace and an industrial process for the recovery of vanadium in used catalysts, in particular for hydrodesulphurization, and even more particularly of the RDS/VRDS type.
- Another object of the present invention is to solve the technical problem of providing a furnace and an economical process for neutral roasting (without additives) or for regenerating used petroleum hydrodesulphurization catalysts (for example of the HDS type: molybdenum-cobalt and molybdenum -nickel, and RDS / VRDS type: molybdenum-nickel-vanadium) in order to allow optimal recovery of the metals contained in these catalysts.
- used petroleum hydrodesulphurization catalysts for example of the HDS type: molybdenum-cobalt and molybdenum -nickel, and RDS / VRDS type: molybdenum-nickel-vanadium
- Another object of the present invention is to solve the technical problem consisting in providing a furnace and a method making it possible to operate according to a method of roasting used petroleum catalysts or of regenerating such catalysts.
- the present invention also aims to solve the technical problem of providing a furnace and a process by reducing industrial costs compared to the aforementioned processes of the state of the art.
- an industrial furnace for roasting or regenerating used petroleum catalysts comprising: an inlet for catalysts in the form of a plurality of used solids, called used catalysts, and an outlet for catalysts in the form of a plurality of roasted or regenerated solids, called roasted or regenerated catalysts, after desulfurization by exothermic reaction in the presence of oxygen; a device for moving the catalysts along the bottom of the furnace to cause them to circulate from the inlet to the outlet of the furnace; a first zone close to the inlet of the furnace decarbonizing the used catalysts to supply decarbonized catalysts, followed by a second zone located between the first zone and the exit of the furnace, said second zone comprising a plurality of devices for introducing oxygen distributed over the length of the second zone and bringing the decarbonized catalysts into contact with the oxygen introduced, said second zone also comprising one or more variators of the flow rate of the oxygen introduced as a function of the temperature of the
- the invention also relates to a process for roasting or regenerating catalysts, said process comprising: the introduction into an inlet of a furnace, preferably a furnace as defined according to the invention, of catalysts in the form of a plurality spent solids, called spent catalysts; setting the catalysts in motion along the bottom of the oven to cause them to circulate from the inlet to an outlet of the oven; the decarbonization of spent catalysts in a first zone close to the inlet of the furnace to provide decarbonized catalysts, followed by the desulfurization of decarbonized catalysts to provide roasted or regenerated catalysts, the desulfurization being implemented in a second zone located between the first zone and the outlet of the furnace, said second zone comprising a plurality of oxygen introduction devices distributed over the length of the second zone and bringing the decarbonized catalysts into contact with the oxygen introduced, the desulfurization being controlled by the variation of the flow of oxygen in said second zone by one or more variators of the flow of oxygen introduced as a function of the temperature of the catalysts moving in
- the quality of roasted catalysts is characterized by: a high residual sulfur content (S > 2%), when the temperature is too low in the furnace, significant losses of molybdenum by sublimation of M0S2, when the temperature is too high in the oven.
- the invention makes it possible to limit these phenomena and proposes a process and an industrial furnace which are advantageous in these respects.
- the invention relates to a process for roasting used petroleum catalysts.
- a roasting process generally has as its main purpose the recovery of the metals contained in the used petroleum catalysts.
- the roasting can be carried out up to a temperature below 600°C, but typically above 450°C.
- the invention relates to a method for regenerating used petroleum catalysts.
- a regeneration process generally has as its main purpose the subsequent reuse as catalysts of used petroleum catalysts.
- the regeneration can be carried out at a temperature less than or equal to 450°C.
- the used petroleum (or petrochemical) catalysts used according to the invention are desulfurization catalysts using molybdenum.
- the active ingredient typically contains the chemical species M0S2.
- spent petroleum catalysts typically contain sulfur and carbon.
- petroleum catalysts comprise a porous matrix, for example alumina.
- the catalysts treated by the furnace and the process according to the invention notably comprise molybdenum and/or vanadium.
- the metals (mainly molydbene) contained in used petroleum catalysts are mostly upgraded by hydrometallurgy, but there are also pyrometallurgical recovery methods. Carbon and sulfur are harmful for the implementation of these processes, it is therefore necessary to eliminate them by the treatment of roasting or regeneration.
- the catalyst comprises at least vanadium to be separated from other metallic elements, the process being implemented under conditions avoiding the presence of the liquid phase of vanadium oxide V2O5.
- the process according to the invention is a process for roasting or regenerating used petroleum catalysts, for example advantageously for hydrodesulphurization, for example of the H DS and/or RDS/VRDS type.
- the temperature of the catalysts in the second zone is below 600°C.
- the temperature of the catalysts in the second zone is less than or equal to 575°C, preferably less than or equal to 550°C, and even more preferably less than or equal to 500°C.
- the temperature of the catalysts in the second zone is greater than or equal to 400°C, preferably greater than or equal to 450°C.
- the catalysts used to refine the petroleum cuts are in the form of small rods, often made of ceramic, for example with a length of 3 to 5 mm for a width of the order of 1 mm.
- These rods are typically produced by extruding a ceramic paste rich in alumina (Al2O3), then they undergo high temperature firing (sintering) in order to give them mechanical strength.
- the catalysts have a porous matrix.
- molybdenum (Mo) and sulfur (S) are introduced into the porosities of the catalysts to form therein a chemical compound of the molybdenum sulphide (MOS2) type, forming the active compound of the catalyst, (the sulfur which this chemical species is therefore endogenous, it is also referred to as “catalyst constitution sulfur”).
- MOS2 molybdenum sulphide
- the catalysts typically come from a hydrodesulphurization reactor used to remove the (exogenous) sulfur polluting the petroleum cuts.
- an HDS catalyst When an HDS catalyst is no longer active, it typically contains approximately: 15% sulfur (S), 15% carbon (C), 10% molybdenum (Mo), 2-3% nickel (Ni) or cobalt (Co), the balance of the analysis is the alumina (Al2O3) of the matrix.
- the sulfur is mostly endogenous, it is therefore in the form of molybdenum sulphide (MOS2) and localized in the catalyst grains.
- MOS2 molybdenum sulphide
- the carbon Conversely, the carbon is exogenous, it is found in the form of a deposit on the grains of catalysts.
- the invention relates to the roasting or regeneration of RDS/VRDS catalysts of the molybdenum, nickel, vanadium type.
- These catalysts typically contain exogenous vanadium corresponding to an impurity of petroleum fractions. It is known that during the roasting of these catalysts, the vanadium oxidizes in the V 2 O 5 form and passes into the liquid phase from 650°C. Therefore, the presence of this liquid phase during the roasting treatment leads to two problems:
- a process and a furnace according to the present invention make it possible to overcome and in any case to limit these technical problems.
- the present invention makes it possible to recover metals contained in used petroleum catalysts, in particular molybdenum from HDS catalysts and/or vanadium from RDS/VRDS catalysts.
- a furnace according to the invention substantially forms a tube.
- the oven measures 10 to 15 m long for a diameter of 2 to 5 m.
- the furnace may be indirectly heated, for example an electrically heated tube furnace, but is preferably directly heated, typically a tube furnace lined with a refractory lining and heated by at least one burner.
- Direct heating advantageously minimizes thermal inertia compared to indirect heating.
- the burners are preferably located at the head of the tubular furnace lined with a refractory lining.
- the tubular furnace lined with a refractory lining is heated by at least two burners, for example four burners. The more burners there are, the easier it is to fine-tune the temperature at the top of the furnace using 0, 1, 2, 3 or 4 of the burners.
- the furnace has a roasting or regeneration rate greater than or equal to 1 ton per hour of used petroleum catalysts.
- the catalyst thus roasted or regenerated has a very low sulfur content, preferably less than or equal to 0.5% by mass of the total mass of the catalyst.
- the device for setting in motion consists of a device for inclination and alternative rotation of the bottom of the furnace on which the catalysts are arranged, thus creating an inclination and an alternative rotation of the first and second zones.
- the moving device imparts an oscillating motion to the oven.
- the inclination of the first zone is different, and preferably more inclined, than the second zone.
- the oven according to the invention is therefore driven by an alternating rotational movement combined with an inclination of the bottom of the oven.
- the axis of the furnace is inclined, so as to cause a gravity advance movement of the catalysts in the furnace under the effect of the alternating rotations.
- the speed of rotation, the angle of rotation and the movement reversal time are adjustable.
- the oven according to the invention is put into alternating rotation.
- the alternating rotation is carried out over an angle which remains less than +/- 180°.
- the axis of the furnace is inclined, for example by a few percent (less than 10%) relative to the horizontal.
- the catalysts form a moving catalyst bed.
- the invention makes it possible to decarburize and desulfurize, preferably in depth, used catalysts.
- the invention makes it possible to obtain carbon (C) levels ⁇ 0.1% and very low sulfur (S) levels, typically ⁇ 0.1%, while guaranteeing a yield of molybdenum (Mo) > 99% at the output of the roasting or regeneration line, measured by the ratio: Weight of Mo leaving/Weight of Mo entering.
- the process according to the invention eliminates the sulfur and the carbon in a first zone of the furnace.
- the first zone of the furnace is advantageously dedicated to the elimination of the exogenous carbon deposited on the grains of catalysts.
- the carbon is eliminated by combustion according to the following chemical reactions (1) and (2), which are active depending on the availability of oxygen (dioxygen (O2)) and the combustion temperature:
- Reaction (1) occurs when the quantity of oxygen available is low, reaction (2) when it is high, in particular when the quantity of oxygen is greater than the stoichiometric quantity with respect to carbon, in particular when the amount of oxygen is at least twice as high as the stoichiometric amount of carbon. In intermediate situations the two reactions can occur concurrently. In sufficient presence of oxygen and with a temperature > 850°C, reaction (2) is complete.
- the carbon on the surface of the catalyst grains is eliminated as soon as the used catalysts are introduced into the furnace under the effect of the heat therein.
- the first zone is therefore advantageously located at the entrance to the furnace. The combustion of the carbon thus preferably occurs before the elimination of the endogenous sulfur contained in the porosities of the grains of catalysts.
- the process according to the invention eliminates the sulfur of constitution of the grains of catalysts, typically of HDS and RDS / VRDS catalysts.
- the sulfur is eliminated by a chemical conversion reaction in which the chemical species M0S2 is transformed into M0O3 according to the following reaction scheme (3):
- Reaction (3) is activated by heat, and by the availability of oxygen (characterized by the partial pressure of oxygen) as close as possible to the catalysts.
- the reaction is exothermic.
- oxygen dioxygen (O2)
- O2 oxygen
- the reaction becomes active, then it is advantageously maintained by its exothermicity as long as oxygen is present.
- the reaction ceases.
- the first zone does not include an oxygen introduction device.
- the first zone implements a chemical reaction transforming the carbon possibly present on the surface of the catalysts into carbon monoxide.
- the catalysts are introduced at the top (or inlet) of the furnace, advantageously so that the catalyst grains pass through the flame of the burners to allow surface heating of the catalyst grains.
- the combustion of the exogenous carbon takes place under the effect of the heat released by the burners.
- the power of the burners is modulated so that the temperature is limited to 650°C (ambient temperature) over the first quarter of the length of the furnace.
- the first zone allows the combustion of the carbon deposited on the surface of the catalyst grains without other effects; thus the sublimation of MoSp is very limited and there is no liquefaction of V2O5.
- the furnace can be lined with an economical refractory lining of the refractory concrete type.
- the furnace inlet is arranged to facilitate rapid passage of the catalysts into the burner zone.
- the burning of the carbon in the first zone is carried out by limiting the propagation of heat inside the grains of catalysts to limit the sublimation of M0S2.
- the refractory is shaped with a slope to accelerate the speed of passage of the catalysts in the area of the burners.
- the inclination of the first zone of the furnace is greater than the second zone of the furnace in order to increase the gravity advance of the catalysts and thus limit their residence time in the decarbonization zone.
- the second zone comprises several independent oxygen injection zones.
- the oxygen can be provided by a gas containing oxygen, for example economically air.
- the temperature of the catalysts is controlled by temperature control devices, for example thermocouples, located at regular spaces along the length of the furnace in such a way that the thermocouples are always in contact with the catalysts.
- the thermocouples are always covered by the moving bed of catalysts, even in the presence of the alternating rotational movement of the furnace.
- the temperature of the catalysts in the furnace is regulated by the flow of oxygen thus fixing the reaction quantity since reaction (3) is exothermic.
- the flow of oxygen typically the flow of air is regulated so as to maintain the temperature in the catalysts below the temperature of 500°C.
- the catalysts form a bed of catalysts covering all of the oxygen introduction devices.
- the oxygen injected by the oxygen introduction devices passes through the catalyst bed, which promotes contact between the oxygen and the catalysts and therefore the reactions (1), (2) and (3).
- the catalysts are in contact with the oxygen introduction devices.
- oxygen is introduced as air diffused through porous plugs.
- the rotation angles of the furnace are suitable for maintaining a permanent covering of the oxygen introduction devices by the catalysts.
- the reciprocating rotational movement of the furnace provides a homogeneous and gentle mixing (minimizing the abrasion and the necking of the catalysts) of the catalysts while preventing the generation of dust.
- This mode of mixing therefore makes it possible to maintain the integrity of the grains of catalysts, in particular by avoiding their fragmentation. The integrity of the structure of the catalysts is thus maintained, and therefore also their properties of use, which allows subsequent regeneration of said catalysts.
- the mixing according to the invention also ensures the homogeneity of the desulphurization.
- the oxygen introduced accesses substantially all of the catalyst bed and provides homogeneous desulphurization, visible by a homogeneous temperature. Thus, for example, the presence of local overheating which could lead to liquefying V 2 O 5 in the case of RDS catalysts is avoided.
- the oxygen introduction device comprises porous plugs over which the catalysts circulate, the oxygen being introduced by circulation through said porous plugs.
- the porous plugs have a permeability such that the pressure drop, measured when air passes through them at an incoming air pressure of 1.6 bar absolute, is such that the ratio of the flow rate in m 3 /h of air leaving the porous plugs in relation to the flow rate in m 3 /h of air entering the porous plugs is greater than or equal to 70%, it being understood that the air which does not pass through the porous plugs is evacuated through a leak device.
- Porous corks are typically made of a material that is inert with respect to oxygen and catalysts under the conditions of implementation of the process (that is to say at the temperature used), for example ceramic.
- porous plugs are connected to a source of oxygen, usually air.
- oxygen flow rate variator(s) make it possible to control and adjust the flow rates of oxygen introduced into the oven.
- the oven is equipped with a probe for measuring the temperature of the bed of catalysts.
- the flow of oxygen is regulated by an automaton slaved, for example, to a probe for measuring the temperature of the bed of catalysts.
- the flow rate of the oxygen is regulated manually.
- the oxygen introduction devices consist of porous parts designated “porous plugs”.
- the oxygen is introduced by diffusion through the oxygen introduction devices.
- the oxygen introduction devices are arranged at regular spaces on the bottom of the furnace.
- each of these oxygen introduction devices is supplied with low pressure compressed air (typically 0.99 to 1.5 bars, preferably 0.99 to 1.2 bars, for example 1 bar) in such a way that the compressed air is diffused into the catalysts.
- low pressure compressed air typically 0.99 to 1.5 bars, preferably 0.99 to 1.2 bars, for example 1 bar
- a higher pressure could lead to the projection of the catalysts within the furnace, which is not desired.
- the oxygen introduction devices are arranged in three zones: a zone at the head of the furnace, one in the middle of the furnace and one in the rear part of the furnace.
- Each of these zones made up of its oxygen distribution network and its oxygen introduction devices, is independently supplied with an oxygen flow, for example by means of a low-pressure compressor.
- This arrangement advantageously makes it possible to adjust the air flow on each of the zones, and therefore to vary the air flow over the length of the furnace and to finely control the desulphurization reaction of the catalysts.
- the introduction of oxygen at a variable rate by regulating the availability of oxygen near the catalysts makes it possible to control the reaction quantity which makes it possible, via the exothermicity of the reaction, to control the temperature of the catalysts.
- the desulfurization temperature of the catalysts in the furnace according to the invention is produced mainly by the exotherm of the reaction (3) by regulating finely and as closely as possible catalysts the availability of oxygen.
- the reaction temperature is regulated by the quantity of oxygen introduced by the devices for introducing oxygen allowing the control of the reaction exotherm (and ultimately the control of the temperature).
- the method according to the present invention does not include the addition of additive (the oxygen introduced is not considered as an additive).
- the method according to the present invention does not include the addition of liquid or solid additive reacting with the used petroleum catalysts.
- the process is carried out continuously.
- one or more dams are arranged transversely along the furnace to restrain the movement of the catalysts and increase the period of contact with the oxygen introduced by the oxygen introduction devices. .
- the dam(s) oppose the flow of catalysts across the entire width of the moving catalyst bed.
- the catalyst removal device includes a gravity spill opening.
- the second zone performs the function of post-combustion of the process gases.
- the oven and method according to the invention comprises a gas purification system, preferably in communication with an outlet of the oven, and preferably located in the upper part of the outlet of the oven.
- the gas purification system enables or reduces the level of carbon monoxide (CO)) to a level below 5mg/Nm 3 , typically by oxidation to CO2.
- CO carbon monoxide
- the gas purification system comprises a filtration system in two parts:
- the post-combustion chamber oxidizes the carbon monoxide (CO) resulting from the incomplete combustion of the exogenous carbon covering the catalysts.
- CO carbon monoxide
- Reaction (4) is only effective for a temperature above 850°C with exposure to this temperature > 2 seconds.
- the post-combustion chamber or tower is equipped with burners to enable the reaction temperature of 850°C to be reached.
- the furnace and the method according to the invention do not include a post-combustion tower, or the post-combustion tower is not active, since the excess oxygen diffused by the introduction of oxygen allows reaction (4) to be carried out.
- the thermodynamic conditions for carrying out reaction (4) are advantageous according to the invention.
- the present invention also relates to an industrial system for roasting or regenerating used catalysts comprising a furnace according to the invention.
- the system upstream of the furnace, the system comprises a device for automatically loading the catalysts into the furnace.
- the method and the roasting or regeneration oven according to the invention allow implementation with minimal energy consumption.
- the process and the roasting or regeneration furnace according to the invention allow implementation of a roasting or regeneration of catalysts at low temperature (typically less than 500° C.).
- the method and the roasting or regeneration furnace according to the invention allow the recovery of catalysts, typically of the HDS or RDS / VRDS, used by hydrometallurgical or pyrometallurgical means, and preferably guarantees a high elementary yield of recovered metals: Mo > 90% and V > 85%.
- the method and roasting or regeneration oven according to the invention limits the sublimation of the chemical species M0S2 and therefore the loss of molybdenum.
- the roasting or regeneration process and oven according to the invention avoids the liquefaction of VpOs in the case of RDS/VRDS catalysts.
- the process and the roasting or regeneration furnace according to the invention preserve the integrity of the solids forming the catalysts, and therefore the loss of the metals contained in the porosities of the solid catalysts.
- dust is produced and the metals find themselves trapped within this dust, which necessarily induces a loss of yield. recovery of these metals.
- the method and the roasting or regeneration oven according to the invention are very economical and overcome the drawbacks of existing methods.
- the process and the roasting or regeneration furnace according to the invention make it possible to deeply decarburize and desulphurize used petroleum catalysts of the HDS and RDS / VRDS type in such a way as to obtain carbon levels (C) ⁇ 0.1% and sulfur (S) ⁇ 0.1%.
- the process and the roasting or regeneration furnace according to the invention have a minimum energy consumption since the roasting or regeneration temperature is obtained by controlling the availability of oxygen in the exothermic reaction for converting M0S2 into M0O3.
- the method and the roasting or regeneration furnace according to the invention do not require the addition of alkaline salts (sodium salts) to obtain a high vanadium recovery rate ( > 85%).
- alkaline salts sodium salts
- no alkaline salt is added. This means that no alkaline salts are intentionally added.
- this embodiment includes a process in which the used petroleum catalysts would contain one or more alkaline salts as an unavoidable impurity.
- the process and the roasting or regeneration furnace according to the invention allow all HDS-RDS / VRDS catalysts to be roasted.
- the process and the roasting or regeneration furnace according to the invention provides roasted or regenerated petroleum catalysts with physical integrity, due to the low abrasion of the catalysts in the furnace.
- the roasted or regenerated catalysts according to the invention show substantially no abrasion and necking during the implementation of the process according to the invention.
- the method and the roasting furnace according to the invention allow the use of an economical lining, for example of the projected refractory concrete type.
- the roasting or regeneration furnace according to the invention is cylindrical (or tubular) in shape, its dimensions are 14m long and 3m in diameter, the steel tube which forms the casing of the furnace is reinforced by a metal structure. self-supporting.
- the inside of the steel tube is lined with refractory concrete.
- a set of 4 low-power burners allows the heating of the furnace over the first 3 meters.
- the catalysts are introduced through a chute in the middle of the 4 burners.
- the tube furnace is installed with a slope of 3% from the horizontal.
- the roasting or regeneration furnace 1 is cylindrical (or tubular) in shape, its dimensions are about ten meters long and 2 to 4 m wide. diameter, the steel tube that forms the envelope of the furnace is reinforced by a self-supporting metal structure. The inside of the steel tube is lined with refractory concrete. At the head of the furnace 20, a set of 4 low-power burners allows the heating of the furnace over the first meters/centimeters. The catalysts are introduced through a chute 25 in the middle of the burners. The tube furnace is installed with a slope of a few percent from the horizontal. The slope is defined by the difference in length between the feet 31 and 32 supporting the oven. The furnace can be put into alternating rotation around an axis of rotation 80.
- the devices 30 ensure the alternating rotation of the furnace around the axis 80.
- the plurality of catalysts is loaded through the inlet 20, via the chute 25.
- the plurality of catalysts is deposited on the bottom of the furnace and covers in stationary operating mode all of the porous plugs 55 through which oxygen is introduced, the flow rate of which is regulated by variators (not shown in the diagram).
- stationary operation is meant when the furnace oscillates at an angle such that the porous plugs are always covered by a thickness of catalyst grains.
- the progress of the catalysts is regulated on the one hand by the inclination combined with the alternating rotation of the furnace and on the other hand by the dams 52, 54 slowing their progress.
- the catalysts are decarbonized in the first zone 10 then roasted or regenerated (desulfurized) in the second zone 50 then discharged through the outlet 40, through the discharge port 60.
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Abstract
Description
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EP21836550.0A EP4263052A1 (fr) | 2020-12-18 | 2021-12-16 | Procédé complet de grillage ou de régénération de catalyseurs |
US18/257,555 US20240033722A1 (en) | 2020-12-18 | 2021-12-16 | Complete catalyst roasting or regenerating method |
CA3201559A CA3201559A1 (fr) | 2020-12-18 | 2021-12-16 | Procede complet de grillage ou de regeneration de catalyseurs |
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FRFR2013719 | 2020-12-18 | ||
FR2013719A FR3117894B1 (fr) | 2020-12-18 | 2020-12-18 | Procédé complet de grillage ou de régénération de catalyseurs |
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PCT/EP2021/086124 WO2022129298A1 (fr) | 2020-12-18 | 2021-12-16 | Procédé complet de grillage ou de régénération de catalyseurs |
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US (1) | US20240033722A1 (fr) |
EP (1) | EP4263052A1 (fr) |
CA (1) | CA3201559A1 (fr) |
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WO (1) | WO2022129298A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0771881A1 (fr) | 1995-11-02 | 1997-05-07 | Gulf Chemical & Metallurgical Corporation | Procédé intégré de récupération de métaux et d'alumine fondue à partir de catalyseurs usés |
JP2012126927A (ja) | 2010-12-13 | 2012-07-05 | Sumitomo Metal Mining Co Ltd | 使用済触媒処理におけるアルカリ金属化合物の添加方法 |
WO2017202909A1 (fr) | 2016-05-27 | 2017-11-30 | Sadaci Nv | Four de grillage, son utilisation et procédé de traitement de minerais ou de concentrés |
RU2687445C1 (ru) * | 2018-02-22 | 2019-05-13 | Общество с ограниченной ответственностью "Научно-Производственная Компания "КарбонГрупп" | Способ получения гранулята молибденсодержащего из отработанных молибденсодержащих катализаторов |
-
2020
- 2020-12-18 FR FR2013719A patent/FR3117894B1/fr active Active
-
2021
- 2021-12-16 US US18/257,555 patent/US20240033722A1/en active Pending
- 2021-12-16 WO PCT/EP2021/086124 patent/WO2022129298A1/fr active Application Filing
- 2021-12-16 CA CA3201559A patent/CA3201559A1/fr active Pending
- 2021-12-16 EP EP21836550.0A patent/EP4263052A1/fr active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0771881A1 (fr) | 1995-11-02 | 1997-05-07 | Gulf Chemical & Metallurgical Corporation | Procédé intégré de récupération de métaux et d'alumine fondue à partir de catalyseurs usés |
JP2012126927A (ja) | 2010-12-13 | 2012-07-05 | Sumitomo Metal Mining Co Ltd | 使用済触媒処理におけるアルカリ金属化合物の添加方法 |
WO2017202909A1 (fr) | 2016-05-27 | 2017-11-30 | Sadaci Nv | Four de grillage, son utilisation et procédé de traitement de minerais ou de concentrés |
RU2687445C1 (ru) * | 2018-02-22 | 2019-05-13 | Общество с ограниченной ответственностью "Научно-Производственная Компания "КарбонГрупп" | Способ получения гранулята молибденсодержащего из отработанных молибденсодержащих катализаторов |
Non-Patent Citations (1)
Title |
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"Ullmann's Encyclopedia of Industrial Chemistry", 15 January 2003, WILEY-VCH, Weinheim, ISBN: 978-3-527-30673-2, article GRZELLA JÖRG ET AL: "Metallurgical Furnaces", pages: 693 - 736, XP055837395, DOI: 10.1002/14356007.b04_339 * |
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EP4263052A1 (fr) | 2023-10-25 |
FR3117894A1 (fr) | 2022-06-24 |
CA3201559A1 (fr) | 2022-06-23 |
FR3117894B1 (fr) | 2023-04-21 |
US20240033722A1 (en) | 2024-02-01 |
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