EP 0804273 A1 19971105 - METHOD FOR SEPARATING GASEOUS POLLUTANTS FROM HOT PROCESS GASES
Title (en)
METHOD FOR SEPARATING GASEOUS POLLUTANTS FROM HOT PROCESS GASES
Title (de)
METHOD ZUR ABTRENNENUNG VON GASFÖRMIGEN VERUNREINIGUNGEN VON HEISSEN PROZESSGASEN
Title (fr)
TECHNIQUE DE SEPARATION DES POLLUANTS GAZEUX DES GAZ CHAUDS DE PROCESSUS DE FABRICATION
Publication
Application
Priority
- SE 9501403 W 19951124
- SE 9404105 A 19941128
Abstract (en)
[origin: WO9616722A1] Hot process gases are passed through a contact reactor (10), in which a particulate absorbent material, which is reactive with gaseous pollutants in the gases, is introduced into the gases to convert the gaseous pollutants into separable dust. The process gases are then passed through a dust separator (5). The major part of the dust separated in the dust separator (5) is passed to a mixer (11), in which it is mixed and moistened, whereupon it is recirculated as absorbent material by being introduced, together with fresh absorbent, into the process gases. Burnt lime is added as fresh absorbent. The dust is kept so long in the mixer and recirculated so many times that the total residence time of the burnt lime in the mixer in moistened state is sufficiently long for the burnt lime to react substantially completely with water supplied to the mixer and form slaked lime.
IPC 1-7
IPC 8 full level
B01D 53/18 (2006.01); B01D 53/50 (2006.01); B01D 53/77 (2006.01); B01D 53/81 (2006.01); B01D 53/83 (2006.01)
CPC (source: EP)
B01D 53/508 (2013.01); B01D 53/81 (2013.01)
Citation (search report)
See references of WO 9616722A1
Citation (third parties)
Third party :
- DE 3308927 A1 19840913 - STEINMUELLER GMBH L & C [DE]
- SE 453570 B 19880215 - FLAEKT AB [SE]
- BOYNTON R.S.: "CHEMISTRY AND TECHNOLOGY OF LIME AND LIMESTONE", vol. 2, 1980, JOHN WILEY & SONS,INC, USA, ISBN: 0-471-02771-5, pages: 329 - 334, XP000847699
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
WO 9616722 A1 19960606; AU 4126496 A 19960619; AU 692014 B2 19980528; BR 9509831 A 19970930; CN 1080137 C 20020306; CN 1167450 A 19971210; CZ 157497 A3 19971112; EE 04049 B1 20030616; EE 9700215 A 19980216; EP 0804273 A1 19971105; FI 972233 A0 19970527; FI 972233 A 19970527; HU 220402 B 20020128; HU T77637 A 19980629; JP 3640674 B2 20050420; JP H10509914 A 19980929; KR 100384589 B1 20030821; MD 1020 C2 19990731; PL 320426 A1 19970929; RO 115421 B1 20000228; RU 2147919 C1 20000427; SE 504440 C2 19970210; SE 9404105 D0 19941128; SE 9404105 L 19960529; SI 9520141 A 19971031; SK 66197 A3 19971008; UA 52592 C2 20030115; ZA 959876 B 19960715
DOCDB simple family (application)
SE 9501403 W 19951124; AU 4126496 A 19951124; BR 9509831 A 19951124; CN 95196504 A 19951124; CZ 157497 A 19951124; EE 9700215 A 19951124; EP 95939455 A 19951124; FI 972233 A 19970527; HU 9800501 A 19951124; JP 51717096 A 19951124; KR 19970703389 A 19970521; MD 970166 A 19951124; PL 32042695 A 19951124; RO 9700951 A 19951124; RU 97111848 A 19951124; SE 9404105 A 19941128; SI 9520141 A 19951124; SK 66197 A 19951124; UA 97063196 A 19951124; ZA 959876 A 19951121