WO2000025913A1 - Catalyseur de type a carbone ou additif de type a carbone destine a etre utilise dans l'oxydation hydrothermique supercritique et oxydation hydrothermique supercritique - Google Patents

Catalyseur de type a carbone ou additif de type a carbone destine a etre utilise dans l'oxydation hydrothermique supercritique et oxydation hydrothermique supercritique Download PDF

Info

Publication number
WO2000025913A1
WO2000025913A1 PCT/JP1998/004934 JP9804934W WO0025913A1 WO 2000025913 A1 WO2000025913 A1 WO 2000025913A1 JP 9804934 W JP9804934 W JP 9804934W WO 0025913 A1 WO0025913 A1 WO 0025913A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydrothermal oxidation
carbon type
reaction
oxidation process
carbon
Prior art date
Application number
PCT/JP1998/004934
Other languages
English (en)
Japanese (ja)
Inventor
Yukihiko Matsumura
Kazuo Yamamoto
Taro Urase
Original Assignee
Yukihiko Matsumura
Kazuo Yamamoto
Taro Urase
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yukihiko Matsumura, Kazuo Yamamoto, Taro Urase filed Critical Yukihiko Matsumura
Priority to PCT/JP1998/004934 priority Critical patent/WO2000025913A1/fr
Publication of WO2000025913A1 publication Critical patent/WO2000025913A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • 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
    • B01J21/18—Carbon
    • 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
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/06—Treatment of sludge; Devices therefor by oxidation
    • C02F11/08—Wet air oxidation
    • C02F11/086—Wet air oxidation in the supercritical state

Definitions

  • the present invention is intended to improve the processing efficiency of the process of oxidatively decomposing organic waste in water under supercritical or subcritical conditions (hereinafter referred to as hydrothermal oxidation process). It relates to catalysts or additives.
  • the present invention improves the treatment efficiency without increasing the reaction temperature by introducing a carbon-based catalyst or additive into the reaction field of the hydrothermal oxidation process, Alternatively, it has the effect of suppressing the formation of char and tar due to the treatment of high-concentration organic substances.
  • the inventor increased the treatment efficiency without increasing the reaction temperature by filling a granular carbon-based substance such as granular activated carbon into a reaction vessel of the hydrothermal oxidation process to progress the oxidation reaction. Or, it was confirmed that the effect of suppressing the formation of char and tar due to the treatment of high-concentration organic substances could be exhibited.
  • Organic substances, water and an oxidizing agent are continuously supplied to the reaction vessel of the hydrothermal oxidation process, and the reaction product flows out continuously after the oxidation reaction proceeds.
  • the reaction vessel is filled with a particulate carbon-based catalyst or additive (hereinafter collectively referred to as a carbon-based substance), and is filtered with a metal filter or the like so as not to be washed away by the flow.
  • a carbon-based substance a particulate carbon-based catalyst or additive
  • a metal filter or the like so as not to be washed away by the flow.
  • the nitrogen-based material used here is also oxidized in the reaction field.
  • a carbon-based material having a very low oxidation rate when used, it can be used as a catalyst because it can be kept in the reactor for a sufficiently long time. Can be.
  • an inexpensive nitrogen-based material which has a high oxidation rate, it is necessary to continue to supply a carbon-based material together with the treatment of organic substances, and the carbon-based material is used as an additive. Will be used.
  • the effect of the carbonaceous material is similar in both cases.
  • the ft-based substance besides granular active substances, charcoal, etc., powdery substances, or fibrous substances such as pom-foam oil may be used.
  • the silicon-based material may be supplied continuously by suspending a fine-particle-shaped silicon-based material in a flow to be supplied to the reactor.
  • High decomposition rates are achieved at low temperatures, which can significantly reduce equipment corrosion. This makes it possible to use inexpensive materials. Also, the amount of supplied oxidant can be reduced because the decomposition efficiency is increased. In the currently used hydrothermal oxidation process, a large amount of power is required to compress air or oxygen used as an oxidizing agent.Reducing the amount of the oxidizing agent leads to a large reduction in operating power. Can be Further, since the reaction proceeds in a short time, the volume of the reaction vessel can be reduced, and the cost of the apparatus can be reduced. In addition, high-concentration organic substances can be efficiently decomposed by suppressing generation of char and tar, so that it is not necessary to supply organic substances in a diluted form, so that operation efficiency can be further improved.

Abstract

L'invention concerne un catalyseur de type à carbone ou un additif de type à carbone destiné à être ajouté dans une zone de réaction pour améliorer l'efficacité d'un processus d'oxydation et de décomposition de déchets organiques dans l'eau, dans des conditions critiques ou sous-critiques (désigné ci-après 'processus d'oxydation hydrothermique'). Il est courant d'améliorer l'efficacité d'un processus d'oxydation hydrothermique traditionnel en augmentant la température de réaction; cependant, la corrosion de la cuve de réaction continue de poser un problème. Lorsque l'on traite des substances organiques fortement concentrées, on est en outre confronté au problème d'allongement du temps de réaction dû à la formation du produit de carbonisation et du goudron. On peut améliorer l'efficacité du traitement ou limiter la formation du produit de carbonisation et du goudron, qui résulte du traitement de matières organiques fortement concentrées, sans augmenter la température de réaction, en remplissant la cuve de réaction avec des matières de type de charbon en grains telles que le charbon actif en grains lors du processus d'oxydation hydrothermique visant à accélérer une réaction d'oxydation. Comme l'on peut atteindre un taux de décomposition élevé à une faible température, on réduit la corrosion de l'appareil, la quantité d'oxydant fourni lors du processus d'oxydation hydrothermique et le coût dudit appareil.
PCT/JP1998/004934 1998-10-30 1998-10-30 Catalyseur de type a carbone ou additif de type a carbone destine a etre utilise dans l'oxydation hydrothermique supercritique et oxydation hydrothermique supercritique WO2000025913A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/004934 WO2000025913A1 (fr) 1998-10-30 1998-10-30 Catalyseur de type a carbone ou additif de type a carbone destine a etre utilise dans l'oxydation hydrothermique supercritique et oxydation hydrothermique supercritique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/004934 WO2000025913A1 (fr) 1998-10-30 1998-10-30 Catalyseur de type a carbone ou additif de type a carbone destine a etre utilise dans l'oxydation hydrothermique supercritique et oxydation hydrothermique supercritique

Publications (1)

Publication Number Publication Date
WO2000025913A1 true WO2000025913A1 (fr) 2000-05-11

Family

ID=14209312

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/004934 WO2000025913A1 (fr) 1998-10-30 1998-10-30 Catalyseur de type a carbone ou additif de type a carbone destine a etre utilise dans l'oxydation hydrothermique supercritique et oxydation hydrothermique supercritique

Country Status (1)

Country Link
WO (1) WO2000025913A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006167545A (ja) * 2004-12-14 2006-06-29 Ishikawajima Harima Heavy Ind Co Ltd 下水処理装置及び方法
JP2010214364A (ja) * 2009-02-18 2010-09-30 Junichi Iwamura 加熱装置、産業廃棄物処理方法及び水の淡水化方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574225A (en) * 1980-05-08 1982-01-09 Modaa Inc Oxidizing treating method for organic matter in super critical water
JPH05504093A (ja) * 1990-01-31 1993-07-01 モダー　インコーポレイテッド 水の臨界超過温度で物質を酸化させる方法
JPH09327678A (ja) * 1996-06-10 1997-12-22 Agency Of Ind Science & Technol 超臨界水によるダイオキシン類の分解方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574225A (en) * 1980-05-08 1982-01-09 Modaa Inc Oxidizing treating method for organic matter in super critical water
JPH05504093A (ja) * 1990-01-31 1993-07-01 モダー　インコーポレイテッド 水の臨界超過温度で物質を酸化させる方法
JPH09327678A (ja) * 1996-06-10 1997-12-22 Agency Of Ind Science & Technol 超臨界水によるダイオキシン類の分解方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006167545A (ja) * 2004-12-14 2006-06-29 Ishikawajima Harima Heavy Ind Co Ltd 下水処理装置及び方法
JP4655618B2 (ja) * 2004-12-14 2011-03-23 株式会社Ｉｈｉ 下水処理装置及び方法
JP2010214364A (ja) * 2009-02-18 2010-09-30 Junichi Iwamura 加熱装置、産業廃棄物処理方法及び水の淡水化方法

Similar Documents

Publication Publication Date Title
CN104891713B (zh) 有机废水臭氧催化氧化处理工艺
CN106865938B (zh) 一种污泥催化湿式氧化的处理方法
Rivas et al. Wet air oxidation of wastewater from olive oil mills
CN104030429B (zh) 一种工业废水深度处理的催化臭氧氧化方法
CN111495958A (zh) 一种污染土壤的修复方法
JP4838013B2 (ja) 含窒素有機物の処理装置及び処理方法
CN108383335B (zh) 高浓度有机废水处理系统及方法
CN102432125A (zh) 催化臭氧处理制浆废水的装置及其处理方法
CN107159175B (zh) 一种以亚氧化钛为催化剂的催化臭氧化水处理方法
JP2007083171A (ja) 水処理方法および装置
WO2000025913A1 (fr) Catalyseur de type a carbone ou additif de type a carbone destine a etre utilise dans l'oxydation hydrothermique supercritique et oxydation hydrothermique supercritique
CN107640850A (zh) 成品油库含油污水处理方法
CN111437860A (zh) 催化剂及其制备方法和应用
JP2006159102A (ja) 廃液の処理方法及び処理装置
JP3318483B2 (ja) 有機性汚泥の超臨界水酸化方法及びこれに用いる有機性汚泥の供給装置
JPH10249165A (ja) アンモニア含有ガスの処理方法
CN208327741U (zh) 高浓度有机废水处理系统
CN106799230A (zh) 一种炭基复合催化剂及其制备方法和应用
CN116002842B (zh) 碳纳米管负载型催化剂活化过氧乙酸降解卡马西平的方法
JPH0227035B2 (fr)
JP4820504B2 (ja) 飛灰の処理方法
CN1590311A (zh) 一种含肼废水的处理方法
JP2003080276A (ja) 難分解性有機物の処理方法
JP4674040B2 (ja) 高温高圧下条件における汚泥処理方法
JP2000167570A (ja) 排水の処理方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 2000579344

Format of ref document f/p: F