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WO2011095847A2 - Méthode d'utilisation de fractions inorganiques des boues d'épuration contenant des métaux de transition - Google Patents

Méthode d'utilisation de fractions inorganiques des boues d'épuration contenant des métaux de transition Download PDF

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Publication number
WO2011095847A2
WO2011095847A2 PCT/IB2010/053296 IB2010053296W WO2011095847A2 WO 2011095847 A2 WO2011095847 A2 WO 2011095847A2 IB 2010053296 W IB2010053296 W IB 2010053296W WO 2011095847 A2 WO2011095847 A2 WO 2011095847A2
Authority
WO
WIPO (PCT)
Prior art keywords
ash
sewage sludge
water
transition metals
sludge containing
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.)
Ceased
Application number
PCT/IB2010/053296
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English (en)
Other versions
WO2011095847A3 (fr
Inventor
Ewelina Ksepko
Jan Figa
Marek ŚCIĄŻKO
Sławomir STELMACH
Grzegorz ŁABOJKO
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.)
Inst Wlokiennictwa
Original Assignee
Inst Wlokiennictwa
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Publication date
Application filed by Inst Wlokiennictwa filed Critical Inst Wlokiennictwa
Publication of WO2011095847A2 publication Critical patent/WO2011095847A2/fr
Anticipated expiration legal-status Critical
Publication of WO2011095847A3 publication Critical patent/WO2011095847A3/fr
Ceased legal-status Critical Current

Links

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
    • F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/99008—Unmixed combustion, i.e. without direct mixing of oxygen gas and fuel, but using the oxygen from a metal oxide, e.g. FeO
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00—Combustion
    • F23G2202/10—Combustion in two or more stages
    • F23G2202/106—Combustion in two or more stages with recirculation of unburned solid or gaseous matter into combustion chamber
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Definitions

  • the subject of the invention consists of the use of ash from the processes of thermal treatment of water or sewage sludge as an oxygen carrier for the fuels combustion or gasification in a process with so-called oxygen looping.
  • the agents supplying oxygen for the fuel conversion are oxides or their mixtures obtained on the basis of various metals oxides.
  • the method of sewage sludge use in the form of fertilisers is known from the American application description No US20030121302.
  • the method of use consists in converting a bioorganic material such as e.g. sewage sludge into a wet organically enriched fertiliser mix, enabling obtaining a dried fertiliser in a form of compact pellets.
  • the preparation process enables an effective control of the produced odour and the disinfection of bioorganic material.
  • the method of sewage sludge drying is known from the description No US 415341 1 .
  • the preparation method consists in drying the sewage sludge using a hot sand and burning a dry sludge.
  • the method of sewage sludge use as a biofuel is known from the description No US 461571 1 .
  • the invention consists in the use of mixing the sewage sludge with dried foliage to prepare briquettes as a fuel.
  • the method of briquetting or pelletizing useful for fuels produced based on a substantial amount of sewage sludge combined with a smaller amount of lime as a binder is known from the American patent description No US 5797972.
  • the method of sewage sludge use for fuels production consisting in producing a pumpable slurry of sewage sludge with/or without an addition of carbonaceous fuel and burning this blend in a furnace or boiler is known from the patent description US5264009.
  • the use of sewage sludge for fire extinguishing is known from the description US 20020130294, where the fire suppressant consists of wet cake blocks, used to extinguish fires in buildings and forests.
  • oxygen carriers including various compositions of copper, manganese, iron, cobalt or nickel oxides used as active materials and aluminium oxide, titanium dioxide, zirconium dioxide, sepiolite, bentonite - used as an inert material.
  • Inert materials are added at the amount from a few to a few dozen wt.% in relation to the active material, due to which the oxygen carriers life is extended, inter alia via the reduction of their attrition.
  • This invention is aimed at the use of a sewage sludge inorganic fraction as an oxygen carrier in chemical looping.
  • the method of use of inorganic fractions from the sewage sludge containing transition metals, acc. to the invention is characterised in that pre-dried excess water or sewage sludge containing from 5 wt.% to 95 wt.% of transition metals oxides is completely combusted and grinded to a grain size below 2 mm and then the ash is calcined at the temperature of 850°C during 8 hours.
  • the ash from excess sludge is subject to water leaching of alkalis at the boiling point of the water-ash suspension and then to filtering and rinsing with water till obtaining the alkalis content in the product, converted to
  • the ash grain size is below 0.5 mm.
  • Example 1 The method according to the invention has been described in non- restrictive examples of implementation.
  • Example 1 The method according to the invention has been described in non- restrictive examples of implementation.
  • Oxygen carrier sample obtained from a sewage sludge ash Dried excess sewage sludge containing from 5 wt.% to 95 wt.% of transition metals oxides was subject to complete combustion and grinding to a grain size below 2 mm. The obtained ash was calcined at 850°C during 8 hours.
  • the elemental composition of the ash obtained was as follows (ppm): Fe - 60085, Cu - 854, Zn - 8200, Cr - 321 , Pb - 590, Cd - 10, Mn - 620, Na - 67725, K - 1980, Al - 19268, Ca - 30869.
  • the oxygen carrier obtained features:
  • Dried excess water or sewage sludge containing from 5 wt.% to 95 wt.% of transition metals oxides was subject to complete combustion and grinding to a grain size below 2 mm.
  • the obtained ash was calcined at 850°C during 8 hours.
  • the obtained product was subject to leaching in distilled water. The leaching was carried out during 10 minutes at the boiling point of water-ash suspension containing 20 weight parts of water and 1 weight part of ash. After the solution cooling down, the undissolved part was filtered off and rinsed with fresh distilled water. After the sludge drying it was weighed again and the amount of water- soluble substances was calculated, which for the described example amounted to 3.2%.
  • the leaching was carried out to remove alkaline metal oxides, which presence results in lowering the ash melting temperature. Too low ash melting temperature could make it impossible to use it as an oxygen carrier for fuel thermal conversion in a system with a chemical looping.
  • the removal of alkaline oxides was also aimed at increasing the content of active metal oxides presented in the obtained specimens.
  • the oxygen carrier obtained using the aforementioned method features:
  • Fig. 3 repeatability of oxygen transport capacity at the temperature of 800°C of ash after leaching versus time (at transport capacity of 3.5 wt.%).
  • Dried excess sludge from deep waters treatment containing from 5 wt.% to 95 wt.% of transition metal oxides was subject to complete burning and grinding to a grain size below 2 mm.
  • the ash obtained was calcined at 850°C during 8 hours.
  • the oxygen carrier obtained using the aforementioned method features:
  • Fig. 4 results of cyclic thermogravimetric tests of a water sludge sample.
  • Fig. 1 gives results of cyclical thermogravimetric examinations for a leached ash sample, carried out at temperatures of 600°C, 700°C and 800°C.
  • Table 1 presents the oxygen transport capacity versus oxygen carrier types and temperature.
  • Table 2 presents the values of time necessary for reduction and regeneration of two ash samples for the following fractional conversions at the temperature of 800°C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Sludge (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

La présente invention concerne l'emploi de cendres issues des processus de traitement thermique de l'eau ou des boues d'épuration au titre de transporteur d'oxygène pour la gazéification ou la combustion des combustibles dans un procédé dit de boucle chimique. La méthode d'utilisation de fractions inorganiques provenant d'eau ou des boues d'épuration contenant des métaux de transition selon l'invention est caractérisée en ce que de l'eau en excès ou des boues d'épuration prétraitées contenant entre 5 % en masse et 95 % en masse d'oxyde de métaux de transition sont entièrement brûlées et broyées jusqu'à une granulométrie inférieure à 2 mm, puis les cendres sont calcinées à une température de 850 °C pendant 8 heures.
PCT/IB2010/053296 2010-01-04 2010-07-20 Méthode d'utilisation de fractions inorganiques des boues d'épuration contenant des métaux de transition Ceased WO2011095847A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL390127A PL216805B1 (pl) 2010-01-04 2010-01-04 Sposób wykorzystania, w procesach spalania i/lub zgazowania paliw w układzie chemicznej pętli tlenkowej, nieorganicznych frakcji z wód głębinowych lub ścieków zawierających metale przejściowe
PLP-390127 2010-01-15

Publications (2)

Publication Number Publication Date
WO2011095847A2 true WO2011095847A2 (fr) 2011-08-11
WO2011095847A3 WO2011095847A3 (fr) 2012-09-07

Family

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PL (1) PL216805B1 (fr)
WO (1) WO2011095847A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102410530A (zh) * 2011-10-26 2012-04-11 昆明理工大学 一种利用铜渣制备化学链燃烧氧载体的方法
CN104059714A (zh) * 2014-07-03 2014-09-24 安徽工业大学 一种以含铁冶金尘泥为主要原料制备Fe2O3/Al2O3载氧体的方法
CN118206257A (zh) * 2024-04-10 2024-06-18 山东科技大学 一种用于富铁污泥的化学链气化方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028130A (en) 1974-08-02 1977-06-07 Iu Conversion Systems, Inc. Disposal method and use of sewage sludge
US4153411A (en) 1978-04-12 1979-05-08 Envirotech Corporation Rotary sludge drying system with sand recycle
US4615711A (en) 1982-11-26 1986-10-07 Mueller Dietrich Sewage sludge fuel briquette
US5264009A (en) 1992-09-01 1993-11-23 Texaco Inc. Processing of sewage sludge for use as a fuel
US5797972A (en) 1993-03-25 1998-08-25 Dynecology, Inc. Sewage sludge disposal process and product
US20020130294A1 (en) 2001-01-30 2002-09-19 Guillermo Almagro Sewage sludge as fire suppressant
US20030121302A1 (en) 2000-03-13 2003-07-03 Oliver Michael John Basil Production of a fertilizer product

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028130A (en) 1974-08-02 1977-06-07 Iu Conversion Systems, Inc. Disposal method and use of sewage sludge
US4153411A (en) 1978-04-12 1979-05-08 Envirotech Corporation Rotary sludge drying system with sand recycle
US4615711A (en) 1982-11-26 1986-10-07 Mueller Dietrich Sewage sludge fuel briquette
US5264009A (en) 1992-09-01 1993-11-23 Texaco Inc. Processing of sewage sludge for use as a fuel
US5797972A (en) 1993-03-25 1998-08-25 Dynecology, Inc. Sewage sludge disposal process and product
US20030121302A1 (en) 2000-03-13 2003-07-03 Oliver Michael John Basil Production of a fertilizer product
US20020130294A1 (en) 2001-01-30 2002-09-19 Guillermo Almagro Sewage sludge as fire suppressant

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102410530A (zh) * 2011-10-26 2012-04-11 昆明理工大学 一种利用铜渣制备化学链燃烧氧载体的方法
CN102410530B (zh) * 2011-10-26 2014-11-05 昆明理工大学 一种利用铜渣制备化学链燃烧氧载体的方法
CN104059714A (zh) * 2014-07-03 2014-09-24 安徽工业大学 一种以含铁冶金尘泥为主要原料制备Fe2O3/Al2O3载氧体的方法
CN118206257A (zh) * 2024-04-10 2024-06-18 山东科技大学 一种用于富铁污泥的化学链气化方法

Also Published As

Publication number Publication date
PL216805B1 (pl) 2014-05-30
PL390127A1 (pl) 2011-07-18
WO2011095847A3 (fr) 2012-09-07

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