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Showing result 1 - 5 of 105 essays matching the above criteria.

  1. 1. Modelling the chemical recycling of plastic waste via pyrolysis and analysing integration with existing refinery infrastructure

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Simon Dahl; [2023]
    Keywords : Pyrolysis; Recycling; Integration; Modelling; Simulation; Techno-economic; Plastic; Chemical engineering; Technology and Engineering;

    Abstract : Current plastic management is unsustainable as large amounts of plastic end up landfilled or in the ocean, necessitating an expansion of waste management infrastructure. Pyrolysis is a viable chemical recycling option, and in this report a pyrolysis model is constructed in Aspen Plus. READ MORE

  3. 2. Biogas production with Sargassum algae in Grenada : Optimization of process and market analysis

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Wed Al-Lami; Sofia Herjevik; [2023]
    Keywords : Sargassum algae; biogas; anaerobic digestion; bioenergy; Sargassotång; biogas; anaerobisk nedbrytning; bioenergi;

    Abstract : This study has been carried out within the framework of the Minor Field Studies ScholarshipProgramme (MFS), which is funded by the Swedish International Development Cooperation Agency,Sida. The field study was conducted in Grenada in the spring of 2023. READ MORE

  4. 3. Assessment of the energetic feasibility of a novel CHP biorefinery concept

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Ângelo Miguel Mendes Ferreira; [2023]
    Keywords : biorefinery; bioenergy; biomimicry; combined heat and power; Earth Power Lodge; Technology and Engineering;

    Abstract : This study investigates the potential for energetic self-reliance in an integrated biore- finery, the Earth Power Lodge (EPL), which aims to convert waste into valuable by- products through bio- and thermochemical conversion processes. The primary questions addressed include assessing the necessity of external propane to sustain the pyrolysis process and the net energy output of the ThermoChemical Reactor (TCR) process when fractional distillation is applied to the resulting bio-oils. READ MORE

  5. 4. Valorising spent coffee grounds : An assessment of possibilities in the municipality of Stockholm

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Emma Westling; [2023]
    Keywords : Food waste hierarchy; spent coffee grounds; circular economy; economic assessments; waste valorisation; Matavfallshierarki; Kaffesump; Cirkulär ekonomi; ekonomisk bedömning; avfallsvalorisering;

    Abstract : Circular economy is an economic model that is gaining more and more attention, themodel aims to close production chains by recirculate waste into the system as newraw material. Spent coffee grounds are a waste that has great potential to becomenew products since the spent coffee ground contains many valuable substances suchas polysaccharides, polyphenols, and lipids. READ MORE

  6. 5. Cultivation of Yarrowia lipolytica on a hydrolysate based on food waste

    University essay from SLU/Department of Molecular Sciences

    Author : Hanna Norrman; [2023]
    Keywords : Yarrowia lipolytica; hydrolysate; food waste; fish feed; volatile fatty acids;

    Abstract : Interest in replacing fish oil and fish meal as fish feed ingredients with more socially, environmen-tally, and economically sustainable alternatives has increased in recent years. One such alternative could be the use of yeast biomass. READ MORE