Blar i Department of Chemistry på forfatter "Hegdahl, Stian Hersvik"
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Environmentally Friendly Synthesis of Biobased Plastic from Lignin Derived Building Blocks to Replace Poly(ethylene Terephthalate) (PET)
Hegdahl, Stian Hersvik (Master thesis, 2017-12-20)The resources of petroleum are decreasing, and new ways have to be found of producing all the energy and chemicals that today are based on petroleum. An alternative to petroleum is renewable biomass, where lignocellulosic ... -
Exploring hydrothermal liquefaction (HTL) of digested sewage sludge (DSS) at 5.3 L and 0.025 L bench scale using experimental design
Hegdahl, Stian Hersvik; Ghoreishi, Solmaz; Løhre, Camilla; Barth, Tanja (Journal article; Peer reviewed, 2023)A common perspective within the prospect of a greener future is utilising our waste materials. One waste material of which the world has abundant resources, and where we will keep having resources, is sewage sludge. This ... -
From waste to bio-oil : Hydrothermal liquefaction of digested sewage sludge in small and large scale
Hegdahl, Stian Hersvik (Doctoral thesis, 2023-06-16)FN’s bærekraftsmål er tydelige på hvilke tiltak som er nødvendige for å drastisk redusere de pågående klimaendringene i verden. Blant disse tiltakene finner man målet om bedre utnyttelse av bærekraftige råstoff, å sørge ... -
Hydrothermal liquefaction of sewage sludge anaerobic digestate for bio-oil production: Screening the effects of temperature, residence time and KOH catalyst
Hegdahl, Stian Hersvik; Løhre, Camilla; Barth, Tanja (Journal article; Peer reviewed, 2022)Due to sewage sludge being an abundant biobased resource, and with the number of biogas plants utilizing sewage sludge increasing, digested sewage sludge (DSS) is a promising feedstock for producing bio-oil. This study ...