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Tail Gas Treatment

Uhde Wins New Contracts

14.02.2007 | Editor: Gerd Kielburger

EnviNOx tail gas treatment unit. (Pictures: Uhde)
EnviNOx tail gas treatment unit. (Pictures: Uhde)

Uhde has been commissioned by the Hungarian fertiliser company Nitrogénmüvek Zrt. to engineer and supply a tail gas treatment unit based on the EnviNOx technology. The EnviNOx unit

Uhde has been commissioned by the Hungarian fertiliser company Nitrogénmüvek Zrt. to engineer and supply a tail gas treatment unit based on the EnviNOx technology. The EnviNOx unit will be installed in a new nitric acid plant in Petfürdö, around 80 kilometres south-west of Budapest, and is scheduled to come on-stream in May 2007. Uhde‘s EnviNOx process uses a special catalyst to convert the pollutant nitrogen oxides, i.e. nitrous oxide (N2O) and NOx, in the tail gas streams of nitric acid plants into the naturally occurring substances nitrogen, oxygen and water vapour. In total, future annual emissions from the Hungarian plant will be reduced by approximately 3,200 tons of nitrous oxide. A second contract for an EnviNOx tail gas treatment unit has also been awarded by Enaex S.A. of Santiago, Chile. Here too the unit will be installed in a nitric acid plant, thus reducing annual emissions of nitrous oxide by 3,000 tonnes. The unit is due to come on-stream in Mejillones, some 1,400 kilometres north of the capital Santiago, in late 2007. Both contracts comprise the licence, basic engineering, supply of key equipment and supervision of the commissioning of the units.

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