Blar i SINTEF Open på forfatter "Wittgens, Bernd"
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A new Norwegian bioeconomy based on cultivation and processing of seaweeds: Opportunities and R&D needs
Skjermo, Jorunn; Aasen, Inga Marie; Arff, Johanne; Broch, Ole Jacob; Carvajal, Ana Karina; Christie, Hartvig C; Forbord, Silje; Olsen, Yngvar; Reitan, Kjell Inge; Rustad, Turid; Sandquist, Judit; Solbakken, Roar; Steinhovden, Kristine; Wittgens, Bernd; Wolff, Robert; Handå, Aleksander (Research report, 2014) -
A new Norwegian bioeconomy based on cultivation and processing of seaweeds: Opportunities and R&D needs
Skjermo, Jorunn; Aasen, Inga Marie; Arff, Johanne; Broch, Ole Jacob; Carvajal, Ana Karina; Christie, Hartvig C; Forbord, Silje; Olsen, Yngvar; Reitan, Kjell Inge; Rustad, Turid; Sandquist, Judit; Solbakken, Roar; Steinhovden, Kristine; Wittgens, Bernd; Wolff, Robert; Handå, Aleksander (SINTEF Fiskeri og Havbruk reports;A25981, Research report, 2014-06-03)Cultivation of macroalgae at the lowest trophic level, using only sunlight and nutrients from the sea while taking up CO:z, will have a neutral carbon footprint and the biomass will contribute significantly to meet the ... -
A new Norwegian bioeconomy based on cultivation and processing of seaweeds: Opportunities and R&D needs
Skjermo, Jorunn; Aasen, Inga Marie; Arff, Johanne; Broch, Ole Jacob; Carvajal, Ana Karina; Christie, Hartvig C; Forbord, Silje; Olsen, Yngvar; Reitan, Kjell Inge; Rustad, Turid; Sandquist, Judit; Solbakken, Roar; Steinhovden, Kristine; Wittgens, Bernd; Wolff, Robert; Handå, Aleksander (SINTEF Rapport;A25981, Research report, 2014) -
Analyse av alternative driftsformer for ikke-elektrifiserte baner 2. utgave
Zenith, Federico; Møller-Holst, Steffen; Myklebust, Thor; Thomassen, Magnus; Tolchard, Julian R; Hovland, Jon; Thomassen, Tonje; Wittgens, Bernd; Bustad, Joakim; Landmark, Andreas; Tschentscher, Roman; Hansen, Olav (SINTEF rapport;2019:00997, Research report, 2019-09-30)SAMMENDRAG Alternative drivstoff og framdriftsteknologier er evaluert for ikke-elektrifiserte banestrekninger i Norge med fokus på godstrafikk. Denne rapporten er en revidert utgave av en rapport som opprinnelig ble skrevet ... -
Cleaning of polycyclic aromatic hydrocarbons (PAH) obtained from ferroalloys plant
Panjwani, Balram; Andersson, Stefan; Wittgens, Bernd; Olsen, Jan Erik (Chapter, 2017)Polycyclic Aromatic hydrocarbons (PAHs) are organic compounds consisting of only hydrogen and aromatic carbon rings. PAHs are neutral, non-polar molecules that are produced due to incomplete combustion of organic matter. ... -
Cleaning of polycyclic aromatic hydrocarbons (PAH) obtained from ferroalloys plant
Panjwani, Balram; Andersson, Stefan; Wittgens, Bernd; Olsen, Jan Erik (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)Polycyclic Aromatic hydrocarbons (PAHs) are organic compounds consisting of only hydrogen and aromatic carbon rings. PAHs are neutral, non-polar molecules that are produced due to incomplete combustion of organic matter. ... -
Combined analytical strategies for chemical and physical characterization of tar from torrefaction of olive stone
Trubetskaya, Anna; Johnson, Robert; Monaghan, Rory F. D.; Ramos, Andrezza S.; Brunsvik, Anders; Wittgens, Bernd; Han, Yinglei; Pisano, Italo; Leahy, James J.; Budarin, Vitaliy L. (Peer reviewed; Journal article, 2021)The advance in analytical methodology is critical for progress in 1) biorefinery and 2) torrefaction product commercialization. The chemical characterisation of torrefaction liquid and concentrated tar produced by Arigna ... -
Combustion chamber scaling for energy recovery from furnace process gas: waste to value
Panjwani, Balram; Wittgens, Bernd; Olsen, Jan Erik (SINTEF proceedings;2387-4295, Chapter; Peer reviewed, 2017)The dense discrete phase model (DDPM) is a promising method for detailed simulation of fluidized bed reactors. It can resolve particle clusters on much coarser grids than the conventional two fluid model (TFM) and allows ... -
Demonstration of a novel instrument for online monitoring of absorber emissions to air
Einbu, Aslak; Hjarbo, Kai Wilhelm; Brunsvik, Anders; Zahlsen, Kolbjørn; Wittgens, Bernd (Peer reviewed; Journal article, 2021)A novel concept for online monitoring of nitrosamines, solvent amines and their degradation products in amine absorber emissions to air was demonstrated at the Tiller CO2-lab pilot facility. The monitoring concept is based ... -
Efficacy of a novel sequential enzymatic hydrolysis of lignocellulosic biomass and inhibition characteristics of monosugars
Baksi, Sibashish; Ball, Akash K.; Sarkar, Ujjaini; Banerjee, Debopam; Wentzel, Alexander; Preisig, Heinz A.; Kuniyal, Jagdish Chandra; Birgen, Cansu; Saha, Sudeshna; Wittgens, Bernd; Markussen, Sidsel (Peer reviewed; Journal article, 2019)Efficient production of sugar monomers from lignocellulose is often hampered by serious bottle-necks in biomass hydrolysis. The present study reveals that ultra-sonication assisted pretreatment following autoclaving, termed ... -
Modeling the Growth of Clostridium beijerinckii NCIMB 8052 on Lignocellulosic Sugars
Birgen, Cansu; Markussen, Sidsel; Wentzel, Alexander; Preisig, Heinz A.; Wittgens, Bernd (Peer reviewed; Journal article, 2018)To our knowledge, this is the first growth model of Clostridium beijerinckii NCIMB 8052 on glucose and xylose as representative lignocellulosic sugars, which considers the synergistic effects of sugars on the growth rate. ... -
Modelling of the Ferrosilicon furnace: effect of boundary conditions and burst
Panjwani, Balram; Olsen, Jan Erik; Wittgens, Bernd (SINTEF Proceedings;1, Chapter; Conference object; Peer reviewed, 2015)A by-product from the ferrosilicon process is process gas which escapes into the furnace hood were it reacts with air. The process gas mainly consists of CO with some SiO and moisture. Modeling the gas behavior inside the ... -
Structural and Thermal Characterization of Novel Organosolv Lignins from Wood and Herbaceous Sources
Trubetskaya, Anna; Lange, Heiko; Wittgens, Bernd; Brunsvik, Anders; Crestini, Claudia; Rova, Ulrika; Christakopoulos, Paul; Leahy, J.J.; Matsakas, Leonidas (Peer reviewed; Journal article, 2020)This study demonstrates the effects of structural variations of lignins isolated via an organosolv process from different woody and herbaceous feedstocks on their thermal stability profiles. The organosolv lignins were ... -
Studies on delignification and inhibitory enzyme kinetics of alkaline peroxide pre-treated pine and deodar saw dust
Baksi, Sibashish; Sarkar, Ujjaini; Saha, Sudeshna; Ball, Akash K.; Kuniyal, Jagdish Chandra; Wentzel, Alexander; Birgen, Cansu; Preisig, Heinz A.; Wittgens, Bernd; Markussen, Sidsel (Peer reviewed; Journal article, 2019)Delignification of lignocellulosic biomass by alkaline peroxide pre-treatment is a preliminary important step for an overall biomass fractionation process. In the present work, saw dusts are pre-treated by aqueous alkaline ...