EP 2836459 A1 20150218 - METHOD FOR CONTROLLING THE TEMPERATURE IN THE COMBUSTION FURNACE OF A CLAUS UNIT
Title (en)
METHOD FOR CONTROLLING THE TEMPERATURE IN THE COMBUSTION FURNACE OF A CLAUS UNIT
Title (de)
VERFAHREN ZUR REGELUNG DER TEMPERATUR IM VERBRENNUNGSOFEN EINER CLAUS-ANLAGE
Title (fr)
PROCÉDÉ DE RÉGULATION DE LA TEMPÉRATURE DANS LE FOUR DE COMBUSTION D'UNE UNITÉ CLAUS
Publication
Application
Priority
- DE 102012007161 A 20120412
- EP 2013000912 W 20130327
Abstract (en)
[origin: WO2013152831A1] The invention relates to a method for reducing the nitrogen content in the oxygen-containing oxidation gas of a Claus unit, by means of which control of the temperature in the combustion furnace of a Claus unit can be achieved in that a sulphur-containing acid gas is burnt in a Claus combustion furnace with the result that a sulphur dioxide-containing product gas is obtained, from which a partial stream is drawn off, which is returned to the oxygen-containing oxidation gas on the basis of a measured value with the result that an undesired increase in temperature in the combustion furnace can be avoided when an acid gas which is very rich in sulphur is fed for a certain time into the combustion furnace of a Claus unit, and at the same time a reduction in the nitrogen content in the Claus residual gas is achieved. The invention further relates to the use of a technical gas, which has been freed from the sulphur-containing acid gas by gas scrubbing, wherein said sulphur-containing acid gas has been transformed to sulphur using the claimed method, for the production of direct-reduced iron.
IPC 8 full level
C01B 17/04 (2006.01); C21B 13/00 (2006.01)
CPC (source: EP US)
C01B 17/0413 (2013.01 - EP US); C01B 17/0417 (2013.01 - US); C01B 17/0447 (2013.01 - US); C01B 17/0452 (2013.01 - EP US); C21B 13/0073 (2013.01 - EP US); Y02P 10/134 (2015.11 - EP US); Y02P 10/20 (2015.11 - EP US)
Citation (search report)
See references of WO 2013152831A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102012007161 A1 20131017; AR 090634 A1 20141126; EP 2836459 A1 20150218; IN 9330DEN2014 A 20150710; TW 201408588 A 20140301; US 2015078984 A1 20150319; WO 2013152831 A1 20131017
DOCDB simple family (application)
DE 102012007161 A 20120412; AR P130101148 A 20130409; EP 13717429 A 20130327; EP 2013000912 W 20130327; IN 9330DEN2014 A 20141106; TW 102111114 A 20130328; US 201314394031 A 20130327