JPS5998739A - 触媒の再生方法 - Google Patents

Info

Publication number

JPS5998739A

JPS5998739A JP57208578A JP20857882A JPS5998739A JP S5998739 A JPS5998739 A JP S5998739A JP 57208578 A JP57208578 A JP 57208578A JP 20857882 A JP20857882 A JP 20857882A JP S5998739 A JPS5998739 A JP S5998739A

Authority

JP

Japan

Prior art keywords

catalyst

aqueous solution

solution

concentration

acid

Prior art date

1982-11-30

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.)

Granted

Links

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• 239000003054 catalyst Substances 0.000 title claims abstract description 50
• 230000008929 regeneration Effects 0.000 title description 5
• 238000011069 regeneration method Methods 0.000 title description 5
• 238000000034 method Methods 0.000 claims abstract description 22
• 239000007864 aqueous solution Substances 0.000 claims abstract description 20
• MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 18
• 230000001172 regenerating effect Effects 0.000 claims abstract description 6
• 150000007524 organic acids Chemical class 0.000 claims description 17
• 239000007789 gas Substances 0.000 claims description 11
• 150000007522 mineralic acids Chemical class 0.000 claims description 11
• QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
• 239000011259 mixed solution Substances 0.000 claims description 7
• 229910021529 ammonia Inorganic materials 0.000 claims description 5
• 238000010531 catalytic reduction reaction Methods 0.000 claims description 4
• 238000010438 heat treatment Methods 0.000 claims description 3
• QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract description 33
• 239000000243 solution Substances 0.000 abstract description 21
• OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract description 8
• BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 abstract description 8
• 238000005406 washing Methods 0.000 abstract description 7
• OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 abstract description 4
• 235000019253 formic acid Nutrition 0.000 abstract description 4
• 239000002253 acid Substances 0.000 abstract description 3
• 230000007420 reactivation Effects 0.000 abstract description 2
• OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
• 229910052791 calcium Inorganic materials 0.000 abstract 1
• 239000011575 calcium Substances 0.000 abstract 1
• 239000000203 mixture Substances 0.000 abstract 1
• 230000000694 effects Effects 0.000 description 22
• 238000004140 cleaning Methods 0.000 description 21
• 231100000614 poison Toxicity 0.000 description 11
• 230000007096 poisonous effect Effects 0.000 description 11
• 239000000126 substance Substances 0.000 description 11
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
• VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
• 239000000428 dust Substances 0.000 description 10
• KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 3
• 238000001035 drying Methods 0.000 description 3
• QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
• 239000003795 chemical substances by application Substances 0.000 description 2
• QXYJCZRRLLQGCR-UHFFFAOYSA-N dioxomolybdenum Chemical compound O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 description 2
• 238000010828 elution Methods 0.000 description 2
• 238000011084 recovery Methods 0.000 description 2
• DYUUGILMVYJEHY-UHFFFAOYSA-N 1-$l^{1}-oxidanyl-4,4,5,5-tetramethyl-3-oxido-2-phenylimidazol-3-ium Chemical compound CC1(C)C(C)(C)N([O])C(C=2C=CC=CC=2)=[N+]1[O-] DYUUGILMVYJEHY-UHFFFAOYSA-N 0.000 description 1
• 241000264877 Hippospongia communis Species 0.000 description 1
• GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
• 238000005299 abrasion Methods 0.000 description 1
• 238000009825 accumulation Methods 0.000 description 1
• 239000004480 active ingredient Substances 0.000 description 1
• 239000000969 carrier Substances 0.000 description 1
• 238000006243 chemical reaction Methods 0.000 description 1
• 239000003638 chemical reducing agent Substances 0.000 description 1
• -1 cylinders Substances 0.000 description 1
• 230000003247 decreasing effect Effects 0.000 description 1
• 230000006866 deterioration Effects 0.000 description 1
• 238000002474 experimental method Methods 0.000 description 1
• 239000008187 granular material Substances 0.000 description 1
• 229930195733 hydrocarbon Natural products 0.000 description 1
• 150000002430 hydrocarbons Chemical class 0.000 description 1
• 238000007654 immersion Methods 0.000 description 1
• JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
• 229910017604 nitric acid Inorganic materials 0.000 description 1
• 239000002245 particle Substances 0.000 description 1
• 238000005070 sampling Methods 0.000 description 1
• 239000007787 solid Substances 0.000 description 1
• 239000011949 solid catalyst Substances 0.000 description 1
• 239000007921 spray Substances 0.000 description 1
• 230000002195 synergetic effect Effects 0.000 description 1
• 230000001988 toxicity Effects 0.000 description 1
• 231100000419 toxicity Toxicity 0.000 description 1
• 229910052720 vanadium Inorganic materials 0.000 description 1
• LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1

Cited By (2)