Netstal lime factory presents CO2 capture project
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Netstal GL - Die Kalkfabrik Netstal hat ihr Projekt zur Abscheidung von CO2 aus der Kalkproduktion vorgestellt. Dabei soll das CO2 im Abgas hoch konzentriert und dann verflüssigt werden. An der Präsentation bescheinigte Bundesrat Albert Rösti der Technologie auch weltweit ein hohes Potenzial.
The Netstal lime factory(KFN) wants to liquefy around three quarters of its daily CO2 emissions from lime production instead of emitting them into the atmosphere. To this end, KFN is planning to install an oxyfuel firing system with exhaust gas recirculation in the lime shaft kiln. The company has now presented its corresponding CO2 capture project in the lime factory.
Federal Councillor Albert Rösti also took part in the presentation, KFN announced in a press release. The head of the Federal Department of the Environment, Transport, Energy and Communications described the project as an important contribution to climate protection and attested to the high potential of the technology worldwide.
With the help of the oxyfuel firing system with exhaust gas recirculation and various innovations in the construction of the lime kiln, the CO2 concentration in the exhaust gas is to be increased to more than 75 percent by volume. This makes it possible to subsequently liquefy the CO2 in an energy-efficient manner, KFN explains. The liquefied CO2 can then be fed into further processing or permanent storage.
Simulations and tests have already confirmed the potential of oxyfuel firing on the planned scale. Currently, KFN and technology partner Maerz Ofenbau are busy with preparatory work for the implementation in Netstal. There are still questions regarding financing, KFN writes. However, Konrad H. Marti, Head of Corporate Development at KFN, expects that the project can be realised in an economically satisfactory manner in the near future.