EP 1720799 A2 20061115 - METHOD FOR PRODUCING NITRIC ACID AND PLANT SUITABLE FOR CARRYING OUT SAID METHOD
Title (en)
METHOD FOR PRODUCING NITRIC ACID AND PLANT SUITABLE FOR CARRYING OUT SAID METHOD
Title (de)
VERFAHREN ZUR SALPETERSÄUREPRODUKTION SOWIE DAFÜR GEEIGNETE ANLAGE
Title (fr)
PROCEDE DE PRODUCTION D'ACIDE NITRIQUE ET USINE A CET EFFET
Publication
Application
Priority
- EP 2005001692 W 20050218
- DE 102004008745 A 20040223
- DE 102004035775 A 20040723
Abstract (en)
[origin: WO2005082779A2] The invention relates to a method for reducing the emission of oxides of nitrogen during the production of nitric acid and to a plant suitable for carrying out said method. The method comprises the following steps: i) producing ammonia by catalytic reaction of nitrogen with hydrogen in an ammonia plant (100), ii) introducing the ammonia so produced into an nitric acid plant (200), iii) combusting the ammonia to oxides of the nitrogen in the nitric acid plant (200), iv) washing the gas containing the oxides of the nitrogen with water in at least one absorption column disposed downstream of the ammonia combustion, thereby producing nitric acid, and v) returning to the ammonia plant (100) at least a part of the residual gas leaving the nitric acid plant (200) and containing oxides of the nitrogen.
IPC 8 full level
C01B 21/40 (2006.01); C01B 3/02 (2006.01); C01B 3/38 (2006.01); C01B 21/26 (2006.01); C01C 1/04 (2006.01)
CPC (source: EP)
C01B 3/025 (2013.01); C01B 3/382 (2013.01); C01B 21/26 (2013.01); C01C 1/0405 (2013.01); C01C 1/0488 (2013.01); Y02P 20/52 (2015.11)
Citation (search report)
See references of WO 2005082779A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005082779 A2 20050909; WO 2005082779 A3 20060406; EP 1720799 A2 20061115
DOCDB simple family (application)
EP 2005001692 W 20050218; EP 05707502 A 20050218