Water-gas shift (WGS) Operation of Pre-combustion CO2 Capture Pilot Plant at the Buggenum IGCC

AbstractIn the Nuon/Vattenfall CO2 Catch-up project, a pre-combustion CO2 capture pilot plant was built and operated at the Buggenum IGCC power plant, the Netherlands. The pilot consist of sweet water-gas shift, physical CO2 absorption and CO2 compression. The technology performance was verified and validated models were obtained. This paper describes the validation of a WGS reactor model and the excellent catalyst resistance to carbiding at steam/CO=1.5 mol·mol-1 testing. Model-based optimization shows that compared to conventional operation at steam/CO=2.65, applying steam/CO=1.5 leads to a 10% lower CO2 capture of penalty of 1155 MJelectric·tCO2−1, albeit at a decreased optimum CO2 capture efficiency of 78.5% versus 87.5%

Incidence and Mortality of Mucosal Disease in Iowa

Mucosal disease was first recognized in Iowa as an apparently new disease entity in cattle in January of 1951. The following inquiry is often made: Is the incidence of mucosal disease in cattle increasing in Iowa? It is difficult to determine accurately the incidence of any disease in farm animals