Publikasjoner og ansvarsområder
Performance of Mn-based H2S sorbents in dry, reducing atmosphere – Manganese oxide support effects
Feil om katalysatorer
Feil om katalysatorer DNs oppslag 7. september om bilers katalysatorer er egnet til å skape unødig frykt. Artikkelen gjengir et oppslag i danske "Ingeniøren". Ifølge dette nettstedet skal forskning ha vist at bittesmå stykker med jern fra bilenes katalysatorer ender opp i hjernevevet vårt. Vi som jo...
Co and Ni spinel catalysts for low temperature methane total oxidation
On the initial deactivation of MnxOy-Al2O3 sorbents for high temperature removal of H2S from producer gas
MnxOy−Al2O3 sorbents with Mn loadings of 15 and 30 wt.% were prepared by wet impregnation using Mn(NO3)2.4H2O precursor and γ-alumina. After calcination at 600 °C in air and reduction in H2/N2, the solids were tested for the removal of H2S from a model, dry producer gas with a composition of 0.4 vol...
Potential for metal-carbide, -nitride, and -phosphide as future hydrotreating (HT) catalysts for processing of bio-oils
Efficient thermochemical conversion of ligno-cellulosic biomass towards compatible liquid fuels like diesel and gasoline, potentially alcohols and ethers, is a story about new opportunities and challenging chemistry. Innovations of enabling materials (catalysts, adsorbents, membranes), efficient pro...
Catalytic hydrodeoxygenation (HDO) of phenol over supported molybdenum carbide, nitride, phosphide and oxide catalysts
The performance of titania-supported molybdenum carbide, nitride, phosphide and oxide catalysts was compared for catalytic hydrodeoxygenation (HDO) of phenol. Phenol was selected as a stable model component for lignin degradation products in fast pyrolysis bio-oil. The synthesis and formation path o...
Catalytic Hydrotreatment of Bio-Oils for High-Quality Fuel Production
On the nature of elementary reactions from methane to hydrogen over transition metals
Elementary reactions that are relevant to catalytic hydrogen production have been evaluated over a wide range of transition metals. The UBI-QEP formalism was used to estimate heats of chemisorption and activation energies. The reactions were evaluated on a clean surface with the primary purpose of i...
A Fixed-Bed Reactor Study of Catalytic Partial Oxidation over Rh/Al2O3: An Indication of a Direct Pathway to CO
Catalytic partial oxidation (CPO) of CH4 in air was investigated over Rh/Al2O3 catalysts (0.01, 0.05, 0.1 and 1 wt% Rh0) in co-feed modus in laboratory scale fixed-bed reactors. Main focus was on catalyst stability and selectivity at low temperatures (<700 °C). A particularly high selectivity to ...