CA2185691C - Procede et dispositif de regulation des emissions polluantes a l'occasion des operations de combustion - Google Patents

Procede et dispositif de regulation des emissions polluantes a l'occasion des operations de combustion Download PDF

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Publication number
CA2185691C
CA2185691C CA002185691A CA2185691A CA2185691C CA 2185691 C CA2185691 C CA 2185691C CA 002185691 A CA002185691 A CA 002185691A CA 2185691 A CA2185691 A CA 2185691A CA 2185691 C CA2185691 C CA 2185691C
Authority
CA
Canada
Prior art keywords
sludge
kiln
emissions
combustion operation
approximately
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
CA002185691A
Other languages
English (en)
Other versions
CA2185691A1 (fr
Inventor
R. Leon Leonard
Earl F. Bouse, Jr.
Anne T. Mcqueen
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.)
Cement Industry Environment Consortium
Original Assignee
Cement Industry Environment Consortium
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
Priority claimed from US08/213,718 external-priority patent/US5586510A/en
Application filed by Cement Industry Environment Consortium filed Critical Cement Industry Environment Consortium
Publication of CA2185691A1 publication Critical patent/CA2185691A1/fr
Application granted granted Critical
Publication of CA2185691C publication Critical patent/CA2185691C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/364—Avoiding environmental pollution during cement-manufacturing
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
    • C04B7/42—Active ingredients added before, or during, the burning process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Public Health (AREA)
  • Treating Waste Gases (AREA)
  • Treatment Of Sludge (AREA)

Abstract

La présente invention concerne des procédés et des dispositifs de réduction des émissions polluantes occasionnées par les opérations de combustion, notamment pour la fabrication de ciment. L'invention concerne en outre l'élimination des boues, notamment celles produites par les usines de traitement des eaux usées, en les introduisant dans le processus de combustion. En l'occurence, l'invention prévoit l'introduction de particules de boues aqueuses dans un four à ciment en un point du four permettant avec succès de réduire les émissions polluantes dans les émissions de gaz de combustion produites par le four à ciment. De façon optimale, les boues sont introduites en un point susceptible de réduire au minimum l'émission de NO¿x? et de réduire au minimum l'émission de HC1 en aval (à basses températures). Dans un mode de réalisation spécifique, l'introduction de 10 à 20 tonnes (non métriques) de boues humides par heure permet de réduire d'environ 15 à 30 % les émissions de NO¿x? dans un four à ciment.
CA002185691A 1994-03-16 1995-03-16 Procede et dispositif de regulation des emissions polluantes a l'occasion des operations de combustion Expired - Lifetime CA2185691C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/213,718 US5586510A (en) 1994-03-16 1994-03-16 Method and system for controlling pollutant emissions in combustion operations
US08/213,718 1994-03-16
US30864694A 1994-09-19 1994-09-19
US08/308,646 1994-09-19
PCT/US1995/003309 WO1995025075A1 (fr) 1994-03-16 1995-03-16 Procede et dispositif de regulation des emissions polluantes a l'occasion des operations de combustion

Publications (2)

Publication Number Publication Date
CA2185691A1 CA2185691A1 (fr) 1995-09-21
CA2185691C true CA2185691C (fr) 2003-05-20

Family

ID=26908339

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002185691A Expired - Lifetime CA2185691C (fr) 1994-03-16 1995-03-16 Procede et dispositif de regulation des emissions polluantes a l'occasion des operations de combustion

Country Status (3)

Country Link
AU (1) AU2186295A (fr)
CA (1) CA2185691C (fr)
WO (1) WO1995025075A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6176187B1 (en) 1994-03-16 2001-01-23 Cement Industry Environmental Consortium Sludge handling and feeding system
AT5764U1 (de) * 2002-03-14 2002-11-25 Uv & P Umweltman Verfahrenstec Verfahren zur thermischen behandlung von wässrigen konzentraten
US7959435B2 (en) 2006-01-09 2011-06-14 Cadence Environmental Energy, Inc. Method and apparatus for reducing NOx emissions in rotary kilns by SNCR
CN102923923A (zh) * 2012-10-12 2013-02-13 北京水泥厂有限责任公司 利用处置污泥来降低氮氧化物的方法
CN113516416B (zh) * 2021-08-11 2023-04-18 广西壮族自治区环境应急与事故调查中心 水泥窑处置废物全周期的评价方法、装置、设备及介质

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545317A1 (de) * 1985-12-20 1987-06-25 Kloeckner Humboldt Deutz Ag Verfahren und anlage zur entstickung von abgasen
JP2803855B2 (ja) * 1989-09-11 1998-09-24 秩父小野田株式会社 下水汚泥の資源化システム
US5217624A (en) * 1989-09-11 1993-06-08 Onoda Cement Co., Ltd. Method for the disposal of aqueous sewage sludge

Also Published As

Publication number Publication date
AU2186295A (en) 1995-10-03
CA2185691A1 (fr) 1995-09-21
WO1995025075A1 (fr) 1995-09-21

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