Global Patent Index - EP 1068475 A1

EP 1068475 A1 2001-01-17 - METHOD OF COMBUSTION OR GASIFICATION IN A CIRCULATING FLUIDIZED BED

Title (en)

METHOD OF COMBUSTION OR GASIFICATION IN A CIRCULATING FLUIDIZED BED

Title (de)

VERFAHREN ZUM VERBRENNEN ODER VERGASEN IN DER ZIRKULIERENDEN WIRBELSCHICHT

Title (fr)

PROCEDE DE COMBUSTION OU DE GAZEIFICATION DANS UN LIT FLUIDISE EN CIRCULATION

Publication

EP 1068475 A1 (DE)

Application

EP 00901114 A

Priority

  • DE 19903510 A
  • EP 0000378 W

Abstract (en)

[origin: DE19903510A1] According to the invention a material containing combustible components is burned or gasified in a circulating fluidized bed comprising a turbulence chamber (2), a solids separator (4) connected to the upper area of the turbulence chamber, a return line (6) leading from the solids separator to the turbulence chamber and a cooling device (15) for the indirect cooling of solids arriving from the solids separator. The cooling device comprises several fluidized beds (21, 22, 23) through which the solids pass one after the other. The first fluidized bed (20), into which the hot solids arriving from the solids separator are introduced first, is situated in a dechlorinating chamber (16). Fluidizing gas and at least one of the following dechlorinating additives: a) gaseous SO2 or a material which contains sulfur and releases SO2 in an oxidizing atmosphere, b) silicates and aluminium silicates, c) activated silicate, or d) other alkali-binding and HCl-releasing additives, are also introduced into the dechlorinating chamber in at least stoichiometric quantities so as to convert the alkali and metal chlorides contained in the arriving solids.

IPC 1-7 (main, further and additional classification)

F23G 5/30; F23C 10/10; F23G 5/48

IPC 8 full level (invention and additional information)

F23J 15/06 (2006.01); B01J 8/26 (2006.01); B01J 8/36 (2006.01); F23C 10/10 (2006.01); F23G 5/30 (2006.01); F23G 5/48 (2006.01)

CPC (invention and additional information)

F23G 5/48 (2013.01); F23C 10/10 (2013.01); F23G 5/30 (2013.01); F23C 2206/103 (2013.01); F23G 2203/501 (2013.01)

Citation (search report)

See references of WO 0045091A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

DE 19903510 A1 20000803; DE 19903510 C2 20020307; AT 227825 T 20021115; AU 2109400 A 20000818; AU 763820 B2 20030731; CZ 20003568 A3 20020213; CZ 297653 B6 20070221; DE 50000746 D1 20021219; DK 1068475 T3 20030310; EP 1068475 A1 20010117; EP 1068475 B1 20021113; ES 2185559 T3 20030501; HU 0102841 A2 20011228; HU 0102841 A3 20020328; HU 222149 B1 20030428; JP 2002539402 A 20021119; JP 4443769 B2 20100331; PL 191977 B1 20060731; PL 343119 A1 20010730; PT 1068475 E 20030331; TW 414844 B 20001211; US 6649135 B1 20031118; WO 0045091 A1 20000803

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