DE3609117C2 - - Google Patents

Info

Publication number
DE3609117C2
DE3609117C2 DE19863609117 DE3609117A DE3609117C2 DE 3609117 C2 DE3609117 C2 DE 3609117C2 DE 19863609117 DE19863609117 DE 19863609117 DE 3609117 A DE3609117 A DE 3609117A DE 3609117 C2 DE3609117 C2 DE 3609117C2
Authority
DE
Germany
Prior art keywords
weight
household waste
fraction
quicklime
fuel
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
Application number
DE19863609117
Other languages
German (de)
Other versions
DE3609117A1 (en
Inventor
Hanns Helmut Riemann
Henning Dr. 4630 Bochum De Vollmer
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Priority to DE19863609117 priority Critical patent/DE3609117A1/en
Publication of DE3609117A1 publication Critical patent/DE3609117A1/en
Application granted granted Critical
Publication of DE3609117C2 publication Critical patent/DE3609117C2/de
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
    • 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
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • 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
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines biologisch stabilen Brennstoffes aus Hausmüll.The invention relates to a method for manufacturing a biologically stable fuel from household waste.

Es ist bekannt, durch verschiedene mechanische Schritte die organische Hausmüllfraktion von den übrigen Bestandteilen des Hausmülls zu separieren, anschließend zu trocknen und brikettiert als Brennstoff zu nutzen (DE-PS 25 10 465). Sofern z. B. aus emissionsrechtlichen Gründen der selbstproduzierte Brennstoff nicht zum Trocknen genutzt werden kann, muß Primärenergie hierfür zugeführt werden. Dadurch werden die Energiebilanz und die Wirtschaftlichkeit des Verfahrens negativ beeinflußt.It is known through various mechanical Steps the organic household fraction from the separate other household waste components, then dry and briquetted as Use fuel (DE-PS 25 10 465). If z. B. self-produced for reasons of emissions law Fuel cannot be used for drying Primary energy for this can be supplied. This will the energy balance and the economy of the Process adversely affected.

Aus der EP-PS 00 36 140 ist ein Verfahren zur Herstellung von Briketts aus organischen Abfällen bekannt, bei dem zur Erhöhung des Heizwertes den Abfällen Kalk und Kohle zugesetzt werden und anschließend ein Verpressen zu Briketts erfolgt. Der zugesetzte Kalk bewirkt hierbei eine pH-Wert-Verschiebung und Hygienisierung, die noch durch exotherme Reaktionsenergie verstärkt wird. Dieser Effekt der pH-Wert-Verschiebung tritt auch bei dem Verfahren gemäß der WO 84/00 976 auf, bei dem ebenfalls Kalk oder Ca(OH)2 den Abfällen zugesetzt wird, um die anwesenden Mikroorganismen zu inaktivieren.From EP-PS 00 36 140 a process for the production of briquettes from organic waste is known, in which lime and coal are added to the waste to increase the calorific value and then pressed into briquettes. The added lime causes a pH shift and hygienization, which is exacerbated by exothermic reaction energy. This effect of the pH shift also occurs in the process according to WO 84/00 976, in which lime or Ca (OH) 2 is also added to the waste in order to inactivate the microorganisms present.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zu schaffen, bei dem ohne Zusatz von Fremdenergie oder die Nutzung des im Verfahren selbst hergestellten Brennstoffes die Trocknung der organischen Müllfraktion soweit durchführbar ist, daß ein biologisch stabiler Brennstoff gewonnen wird. Das Kriterium für die biologische Stabilität ist dabei ein Restwassergehalt von unter 15 Gewichts-%.The invention is based on the object To create procedures in which without the addition of External energy or the use of the process itself manufactured fuel the drying of the organic waste fraction is so far feasible that a biologically stable fuel is obtained. The  The criterion for biological stability is one Residual water content of less than 15% by weight.

Gelöst wird diese Aufgabe erfindungsgemäß durch ein Verfahren mit den Merkmalen der Patentansprüche.According to the invention, this object is achieved by a Method with the features of the claims.

Im folgenden wird die Erfindung näher erläutert. Im allgemeinen weist die aus dem Hausmüll separierte organische Fraktion eine Restfeuchte von rund 20% auf. Durch Zugabe von Branntkalk wird infolge der Löschreaktion des Kalkes ein Teil der Feuchte gebunden, wobei außerdem durch die entstehende Wärme von 1164 J/g ein weiterer Teil der Feuchtigkeit verdampft. The invention is explained in more detail below. in the generally indicates that separated from household waste organic fraction a residual moisture of around 20% on. By adding quicklime, the Lime extinguishing reaction part of the moisture bound, also by the heat generated of 1164 J / g another part of the moisture evaporates.  

Versuche haben ergeben, daß etwa die Hälfte der Reaktionswärme für die Verdampfung nutzbar ist.Experiments have shown that about half of the heat of reaction for the evaporation is usable.

Die Reaktionsgleichung ergibt:The reaction equation gives:

56 g CaO + 18 g H2O = 74 g Ca(OH)2 + 65 184 J56 g CaO + 18 g H 2 O = 74 g Ca (OH) 2 + 65 184 J

Unter der obigen Prämisse reicht die entstehende Reaktionswärme aus, um rund 13 g Wasser zu verdampfen. Dementsprechend ist eine Zugabe von rund 7,5% Branntkalk erforderlich, um die Brennstofffraktion mit einer Ausgangsfeuchte von 20% auf die biologisch stabile End­ feuchte von 15% zu trocknen.Under the above premise, the heat of reaction generated is sufficient to evaporate around 13 g of water. Accordingly, an encore of around 7.5% quicklime required to reduce the fuel fraction with an initial moisture of 20% to the biologically stable end 15% moisture to dry.

Diese Kalkzugabe hat zwei positive Nebeneffekte. Erstens wirkt der Kalk als Bindemittel und verringert damit den Preßaufwand, falls die Brennstofffraktion zu Briketts verpreßt werden soll. Zweitens werden die in der Brennstoffraktion enthaltenen Schadstoffe durch den Kalk gebunden.This addition of lime has two positive side effects. First, it works Lime as a binder and thus reduces the pressing effort if the Fuel fraction to be pressed into briquettes. Second will the lime contaminants contained in the fuel fraction bound.

Aufgrund vorliegender Analysenergebnisse ist davon auszugehen, daß die aus Hausmüll gewonnene Brennstofffraktion im Mittel einen Chlor­ gehalt von 0,3% und einen Schwefelgehalt von 0,2% aufweist. Für eine stöchiometrische Bindung dieser Schadstoffmenge würde demnach eine Zugabe von 0,6% Branntkalk genügen. Da die biologisch stabili­ sierte Brennstofffraktion folglich einen alkalischen Überschuß auf­ weist, kann erfindungsgemäß schwefelreiche Braun- oder Steinkohle bis zu einem Maß zugemischt werden, bei dem der Kalkgehalt noch das Doppelte des stöchiometrisch erforderlichen Wertes ausmacht.Based on the analysis results available, it can be assumed that the fuel fraction obtained from household waste averages chlorine content of 0.3% and a sulfur content of 0.2%. For a stoichiometric binding of this amount of pollutant would accordingly an addition of 0.6% quicklime is sufficient. Because the biologically stable based fuel fraction consequently on an alkaline excess has, according to the invention, sulfur-rich lignite or hard coal to a level where the lime content is still that Is twice the stoichiometrically required value.

Claims (2)

1. Verfahren zur Herstellung eines biologisch stabilen Brennstoffes aus Hausmüll, dadurch gekennzeichnet, daß der separierten organischen Hausmüllfraktion zur Trocknung auf einen Wassergehalt von höchstens 15 Gew.-% Branntkalk in einer Menge (Gew.-%) zugemischt wird, die mindestens das 1,5fache des über 15 Gew.-% hinausgehenden anfänglichen Wassergehaltes der organischen Hausmüllfraktion beträgt.1. A process for the production of a biologically stable fuel from household waste, characterized in that the separated organic household waste fraction for drying to a water content of at most 15% by weight quicklime is mixed in an amount (% by weight) which is at least 1, 5 times the initial water content of the organic household waste fraction, which exceeds 15% by weight. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der organischen Hausmüllfraktion schwefelreiche Stein- oder Braunkohle zugemischt werden, wobei die zugemischte Menge an Kohle (Gew.-%) höchstens so groß ist, daß der Anteil an Branntkalk (Gew.-%) mindestens das Doppelte des zur Abbindung des insgesamt vorhandenen Gehaltes (Gew.-%) an Schadstoffen (Schwefel, Chlor) stöchiometrisch erforderlichen Wertes beträgt.2. The method according to claim 1, characterized, that the organic household waste fraction sulfur-rich stone or Lignite are added, the amount added Coal (wt .-%) is at most so large that the proportion of Quicklime (% by weight) at least twice that for setting of the total content (% by weight) of pollutants (Sulfur, chlorine) stoichiometrically required value is.
DE19863609117 1986-03-14 1986-03-14 Process for producing a biologically stable fuel from domestic refuse Granted DE3609117A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863609117 DE3609117A1 (en) 1986-03-14 1986-03-14 Process for producing a biologically stable fuel from domestic refuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863609117 DE3609117A1 (en) 1986-03-14 1986-03-14 Process for producing a biologically stable fuel from domestic refuse

Publications (2)

Publication Number Publication Date
DE3609117A1 DE3609117A1 (en) 1987-09-17
DE3609117C2 true DE3609117C2 (en) 1988-03-10

Family

ID=6296699

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863609117 Granted DE3609117A1 (en) 1986-03-14 1986-03-14 Process for producing a biologically stable fuel from domestic refuse

Country Status (1)

Country Link
DE (1) DE3609117A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011706A1 (en) * 1990-04-11 1991-10-24 Hoelter Heinz Fuel prepn. from waste and coal - by freeing waste from substances causing harmful emissions and mixing with very fine
GB9208479D0 (en) * 1992-04-16 1992-06-03 Cpis Limited Method of making refuse-derived fuel and fuel made by the method
DE4243156C1 (en) * 1992-12-19 1994-01-27 Schwarze Pumpe Energiewerke Ag Compaction of waste esp. clarification sludge - to obtain strong pressings for use in coal pressure gasification
DE4243154C1 (en) * 1992-12-19 1994-02-10 Schwarze Pumpe Energiewerke Ag Preparing briquettes from finely-dispersed (in)organic slurries - by adding dried lignite xylite as additive, replacing with lignite, mixing, and compacting
DE4243155C1 (en) * 1992-12-19 1994-01-27 Schwarze Pumpe Energiewerke Ag Compaction of mixed wastes and residues, pref. acid resins and paint residues - to give strong compacts for use in fixed bed gasification
EP1541533A1 (en) * 2003-12-08 2005-06-15 Terval S.A. Process for drying and agglomerating biomass having a low dry matter content

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3010259A1 (en) * 1980-03-17 1981-09-24 Rolf W. 2863 Ritterhude Lindemann BRIKETT FROM ORGANIC PRODUCTS OR WASTE PRODUCTS BY MEANS OF ENRICHMENT
DK148636C (en) * 1982-08-27 1987-11-02 Energy Conservation Tech Ect PROCEDURE FOR PREPARING A STORAGE-RESISTANT FUEL

Also Published As

Publication number Publication date
DE3609117A1 (en) 1987-09-17

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee