GR1000870B - Combustion of fuel containing alkalines background and summary of the invention - Google Patents

Combustion of fuel containing alkalines background and summary of the invention

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Publication number
GR1000870B
GR1000870B GR880100415A GR880100415A GR1000870B GR 1000870 B GR1000870 B GR 1000870B GR 880100415 A GR880100415 A GR 880100415A GR 880100415 A GR880100415 A GR 880100415A GR 1000870 B GR1000870 B GR 1000870B
Authority
GR
Greece
Prior art keywords
melting point
reaction chamber
alkali metal
fuel
lignite
Prior art date
Application number
GR880100415A
Other languages
Greek (el)
Inventor
Folke Engstrom
Erkki Kiiskila
Pekka Tormikoski
Original Assignee
Ahlstroem Oy
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 Ahlstroem Oy filed Critical Ahlstroem Oy
Publication of GR1000870B publication Critical patent/GR1000870B/en

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Abstract

Μέθοδος καύσεως στερού καυσίμου το οποίον έχει αλκαλικές συνθέσεις χαμηλού σημείου τήξεως, όπως εναι τα αλκαλικά μεταλλικά άλατα, ιδιαιτέρως ο λιγνίτης και αλατούχος λιγνίτης. Το καύσιμο εισάγεται εντός του θαλάμου αντιδράσεως ενός αντιδραστήρα κυκλοφορούντος ρευστοποιημένου στρώματος, και αναμιγνύεται πριν από την εισαγωγή στον θάλαμο αντιδράσεως με ένα υλικόν αντιδραστηρίου ικανόν ν' αντιδρά μετά των αλκαλικών συθέσεων χαμηλού σημείου τήξεως του καυσίμου για παραγωγή αλκαλικών μεταλλικών ενώσεων υψηλού σημείου τήξεως κατά τη διάρκεια της καύσεως. Η θερμοκρασία στον θάλαμο αντιδράσεως κρατείται κάτω του σημείου τήξεως των σχηματιζομένων αλκαλικών μεταλλικών ενώσεων. Το υλικόν αντιδραστηρίου περιλαμβάνει οξείδιο πυριτίου ή μέταλλον οξείδιο, ή υδροξείδιο, της ομάδας η οποία συνίσταται από αλουμίνιο, ασβέστιο, μαγνήσιο, σίδηρος, τιτάνιον, και μίγματα εκ δύο ή περισσοτέρων εξ αυτών. Η καολίνη είναι ιδιαιτέρως αποτελεσματική, ειδικώς όταν ο μαζικός λόγος του Al/(Na και Κ) είναι τουλάχιστον 1,0. ωA method of burning solid fuel which has alkaline compositions with a low melting point, such as alkali metal salts, particularly lignite and saline lignite. The fuel is introduced into the reaction chamber of a fluidized bed reactor, and is mixed prior to introduction into the reaction chamber with a reactant material capable of reacting with the low melting point alkaline compositions of the fuel to produce high melting point alkali metal compounds during of burning. The temperature in the reaction chamber is kept below the melting point of the alkali metal compounds formed. The reagent material includes silicon oxide or a metal oxide, or hydroxide, of the group consisting of aluminum, calcium, magnesium, iron, titanium, and mixtures of two or more thereof. Kaolin is particularly effective, especially when the mass ratio of Al/(Na and K) is at least 1.0. oh

GR880100415A 1988-06-24 1988-06-24 Combustion of fuel containing alkalines background and summary of the invention GR1000870B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR88100415 1988-06-24

Publications (1)

Publication Number Publication Date
GR1000870B true GR1000870B (en) 1993-03-16

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ID=10938768

Family Applications (1)

Application Number Title Priority Date Filing Date
GR880100415A GR1000870B (en) 1988-06-24 1988-06-24 Combustion of fuel containing alkalines background and summary of the invention

Country Status (1)

Country Link
GR (1) GR1000870B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864458A (en) * 1973-06-11 1975-02-04 Dorr Oliver Inc Fluid bed incineration of chloride-containing waste streams
US3907674A (en) * 1974-04-24 1975-09-23 Dorr Oliver Inc Fluid bed incineration of wastes containing alkali metal chlorides
DE2807076A1 (en) * 1978-02-18 1979-08-23 Rhein Westfael Elect Werk Ag USE OF CALCIUM OXIDE AS AN AGENT TO REDUCE SULFUR EMISSIONS IN BOILER FIRING
EP0096946A2 (en) * 1982-02-18 1983-12-28 Unilever N.V. Method for processing of by-products of the refining of oils and fats
EP0176293A2 (en) * 1984-09-24 1986-04-02 Combustion Power Company Inc. Recirculating fluid bed combustor - method and apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864458A (en) * 1973-06-11 1975-02-04 Dorr Oliver Inc Fluid bed incineration of chloride-containing waste streams
US3907674A (en) * 1974-04-24 1975-09-23 Dorr Oliver Inc Fluid bed incineration of wastes containing alkali metal chlorides
DE2807076A1 (en) * 1978-02-18 1979-08-23 Rhein Westfael Elect Werk Ag USE OF CALCIUM OXIDE AS AN AGENT TO REDUCE SULFUR EMISSIONS IN BOILER FIRING
EP0096946A2 (en) * 1982-02-18 1983-12-28 Unilever N.V. Method for processing of by-products of the refining of oils and fats
EP0176293A2 (en) * 1984-09-24 1986-04-02 Combustion Power Company Inc. Recirculating fluid bed combustor - method and apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CLAIMS SEARCHED: ALL *

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