JPS6248537B2 - - Google Patents

Info

Publication number

JPS6248537B2

JPS6248537B2 JP56098361A JP9836181A JPS6248537B2 JP S6248537 B2 JPS6248537 B2 JP S6248537B2 JP 56098361 A JP56098361 A JP 56098361A JP 9836181 A JP9836181 A JP 9836181A JP S6248537 B2 JPS6248537 B2 JP S6248537B2

Authority

JP

Japan

Prior art keywords

catalyst

denitrification

vanadium

titania

regenerating

Prior art date

1981-06-26

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

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• 239000003054 catalyst Substances 0.000 claims description 67
• GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 20
• MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 18
• 238000000034 method Methods 0.000 claims description 17
• 229910052720 vanadium Inorganic materials 0.000 claims description 16
• LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 11
• 239000007789 gas Substances 0.000 claims description 10
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
• 230000001172 regenerating effect Effects 0.000 claims description 7
• QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
• 150000007522 mineralic acids Chemical class 0.000 claims description 6
• WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
• 238000010531 catalytic reduction reaction Methods 0.000 claims description 5
• 229910052721 tungsten Inorganic materials 0.000 claims description 5
• 239000010937 tungsten Substances 0.000 claims description 5
• 238000010304 firing Methods 0.000 claims description 4
• 150000003658 tungsten compounds Chemical class 0.000 claims description 4
• 229910021529 ammonia Inorganic materials 0.000 claims description 3
• 238000006243 chemical reaction Methods 0.000 description 11
• 239000000243 solution Substances 0.000 description 9
• 238000004140 cleaning Methods 0.000 description 6
• 238000011069 regeneration method Methods 0.000 description 6
• 229910010413 TiO 2 Inorganic materials 0.000 description 5
• 239000000428 dust Substances 0.000 description 5
• 239000000126 substance Substances 0.000 description 4
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
• MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
• 239000013543 active substance Substances 0.000 description 3
• 231100000572 poisoning Toxicity 0.000 description 3
• 230000000607 poisoning effect Effects 0.000 description 3
• HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
• IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
• VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
• PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
• QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
• BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
• 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
• 235000011130 ammonium sulphate Nutrition 0.000 description 2
• 239000007864 aqueous solution Substances 0.000 description 2
• 238000002485 combustion reaction Methods 0.000 description 2
• 238000007796 conventional method Methods 0.000 description 2
• 230000000694 effects Effects 0.000 description 2
• 238000005470 impregnation Methods 0.000 description 2
• 229910052742 iron Inorganic materials 0.000 description 2
• 231100000614 poison Toxicity 0.000 description 2
• 230000007096 poisonous effect Effects 0.000 description 2
• 238000004506 ultrasonic cleaning Methods 0.000 description 2
• 238000005406 washing Methods 0.000 description 2
• 229910052684 Cerium Inorganic materials 0.000 description 1
• VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
• RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
• ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
• 238000003915 air pollution Methods 0.000 description 1
• 150000001339 alkali metal compounds Chemical class 0.000 description 1
• 239000002585 base Substances 0.000 description 1
• 238000001354 calcination Methods 0.000 description 1
• GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
• 229910052804 chromium Inorganic materials 0.000 description 1
• 239000011651 chromium 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
• 230000000052 comparative effect Effects 0.000 description 1
• 229910052802 copper Inorganic materials 0.000 description 1
• 239000010949 copper Substances 0.000 description 1
• 229910052878 cordierite Inorganic materials 0.000 description 1
• XAYGUHUYDMLJJV-UHFFFAOYSA-Z decaazanium;dioxido(dioxo)tungsten;hydron;trioxotungsten Chemical compound [H+].[H+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O XAYGUHUYDMLJJV-UHFFFAOYSA-Z 0.000 description 1
• 230000006866 deterioration Effects 0.000 description 1
• JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
• KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
• 239000007788 liquid Substances 0.000 description 1
• 230000007774 longterm Effects 0.000 description 1
• 239000000463 material Substances 0.000 description 1
• 239000000155 melt Substances 0.000 description 1
• XMYQHJDBLRZMLW-UHFFFAOYSA-N methanolamine Chemical compound NCO XMYQHJDBLRZMLW-UHFFFAOYSA-N 0.000 description 1
• 229940087646 methanolamine Drugs 0.000 description 1
• 229910052750 molybdenum Inorganic materials 0.000 description 1
• 239000011733 molybdenum Substances 0.000 description 1
• 229910052863 mullite Inorganic materials 0.000 description 1
• 229910052759 nickel Inorganic materials 0.000 description 1
• 229910052757 nitrogen Inorganic materials 0.000 description 1
• 239000003960 organic solvent Substances 0.000 description 1
• 235000006408 oxalic acid Nutrition 0.000 description 1
• 239000008188 pellet Substances 0.000 description 1
• 238000011084 recovery Methods 0.000 description 1
• 239000011949 solid catalyst Substances 0.000 description 1
• 238000005507 spraying Methods 0.000 description 1
• 238000003756 stirring Methods 0.000 description 1
• CMPGARWFYBADJI-UHFFFAOYSA-L tungstic acid Chemical compound O[W](O)(=O)=O CMPGARWFYBADJI-UHFFFAOYSA-L 0.000 description 1
• 150000003682 vanadium compounds Chemical class 0.000 description 1