CA2211924C - Procede pour purifier les gaz d'echappement provenant de la transformation du bois - Google Patents

Procede pour purifier les gaz d'echappement provenant de la transformation du bois Download PDF

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Publication number
CA2211924C
CA2211924C CA002211924A CA2211924A CA2211924C CA 2211924 C CA2211924 C CA 2211924C CA 002211924 A CA002211924 A CA 002211924A CA 2211924 A CA2211924 A CA 2211924A CA 2211924 C CA2211924 C CA 2211924C
Authority
CA
Canada
Prior art keywords
regenerative
emissions
bed
beds
catalyst
Prior art date
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 - Lifetime
Application number
CA002211924A
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English (en)
Other versions
CA2211924A1 (fr
Inventor
Sean T. Gribbon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF Catalysts LLC
Original Assignee
Engelhard Corp
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 Engelhard Corp filed Critical Engelhard Corp
Priority claimed from PCT/US1996/002411 external-priority patent/WO1996025224A1/fr
Publication of CA2211924A1 publication Critical patent/CA2211924A1/fr
Application granted granted Critical
Publication of CA2211924C publication Critical patent/CA2211924C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
    • F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
    • F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator
    • F23G7/068—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator using regenerative heat recovery means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)

Abstract

Ce procédé, qui sert à réduire les émissions chargées de contaminants produites lors de diverses opérations de transformation du bois, consiste à faire passer ces émissions à travers un catalyseur d'oxydation (114, 116 ou 118) placé dans une installation d'oxydation catalytique regénérative (100), afin d'éliminer les composés organiques volatils (COV), le méthanol, le formaldéhyde, les résines, les liants et les polluants dangereux de l'air à des températures maximales inférieures à celles que l'on rencontre dans les installations d'oxydation thermique regénérative. Ce catalyseur d'oxydation est conçu pour que tout le processus de réduction des émissions polluantes puisse se faire à des températures de combustion maximales inférieures. En réduisant les températures de combustion maximales pendant la réduction des émissions, cette invention empêche le potassium et/ou le sodium contenu dans ces émissions d'entrer en réaction avec la silice contenue dans les supports de récupération thermique et dans l'isolation en fibres de céramique de l'installation d'oxydation thermique regénérative. Jusqu'ici, cette réaction entraînait la destruction des propriétés désirées du produit fabriqué à base de bois et compromettait la qualité du produit.
CA002211924A 1995-02-13 1996-02-12 Procede pour purifier les gaz d'echappement provenant de la transformation du bois Expired - Lifetime CA2211924C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US38746495A 1995-02-13 1995-02-13
US08/387/464 1995-02-13
PCT/US1996/002411 WO1996025224A1 (fr) 1995-02-13 1996-02-12 Procede pour purifier les gaz d'echappement provenant de la transformation du bois

Publications (2)

Publication Number Publication Date
CA2211924A1 CA2211924A1 (fr) 1996-08-22
CA2211924C true CA2211924C (fr) 2006-08-22

Family

ID=36939182

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002211924A Expired - Lifetime CA2211924C (fr) 1995-02-13 1996-02-12 Procede pour purifier les gaz d'echappement provenant de la transformation du bois

Country Status (1)

Country Link
CA (1) CA2211924C (fr)

Also Published As

Publication number Publication date
CA2211924A1 (fr) 1996-08-22

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