Sökning: "transesterification"

Visar resultat 1 - 5 av 12 uppsatser innehållade ordet transesterification.

  1. 1. Transesterifiering av rapsolja katalyserad av natriumdopad kalciumoxid

    Kandidat-uppsats, KTH/Kemi

    Författare :Ammar Anayi; Christoffer Ottenstedt; Ludvig Jöcker; [2022]
    Nyckelord :Biodiesel; FAME; Heterogen katalys; Katalysator; Rapsolja; Transesterifiering;

    Sammanfattning : The aim of this study was to find and use a heterogeneous catalyst to catalyze the transesterification reaction of biodiesel. The purpose of this is to have a more sustainable production of biodiesel which uses fewer chemicals and can reuse the catalyst easily. LÄS MER

  3. 2. Development of a Water Activity Control and Reaction Monitoring System for Acidolysis and Transesterification Reactions using Immobilized Lipases in a Rotating Bed Reactor

    Master-uppsats, Lunds universitet/Bioteknik (master); Lunds universitet/Bioteknik (CI)

    Författare :Eimantas Gladkauskas; [2019]
    Nyckelord :Enzyme; Enzymes; Immobilized enzyme; bioreactor; rotating bed reactor; acidolysis; transesterification; arduino; water activity; thermodynamic water activity; Enzyme activity; automatic reaction tracking; reaction tracking; biotechnology; electrical engineering; relative humidity; spinchem; enzymatic synthesis; water activity control; process automation; lipases; lipase; bioteknik; Technology and Engineering;

    Sammanfattning : Controlled water activity in an enzymatic reaction can influence enzyme activity and productivity. A small layer of water around an enzyme gives it a required flexibility to catalyze reactions at a higher rate in contrast with the one that is dry (Adlercreutz, Dicko, Larsson, & Månsson, 2017). LÄS MER

  4. 3. PERFORMANCE EVALUATION OF CASTOR BIODIESEL AND PETRO DIESEL BLENDS WITH DIETHYLEETHER ADDITIVE

    Master-uppsats, Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik

    Författare :Feleke Tesfaye; [2016]
    Nyckelord :Feleke; Tigist; Kalkidan;

    Sammanfattning : The focus of this research was pointed at exploring technical feasibility of castor biodiesel with and without diethyl ether additives in direct injection compression ignition engines without any substantial hardware modifications. In this work, the methyl ester of castor oil with and without additives was investigated for its performance as a diesel engine fuel. LÄS MER

  5. 4. Identification of Chlorinated Fatty Acids in Standard Samples and Fish Lipids : Verification and Validation of Extraction, Transesterification and GC-MS/XSD

    Kandidat-uppsats, Linköpings universitet/Tema Miljöförändring; Linköpings universitet/Filosofiska fakulteten

    Författare :Philip Brown; Ida Järlskog; [2015]
    Nyckelord :Chlorinated Fatty Acids; Transesterification; GC-MS XSD; Extraction; Isolation; Norrsundet;

    Sammanfattning : Chlorine gas bleaching was a common method used in pulp industries. As a consequence, significant amounts of chlorine were discharged into surrounding aquatic ecosystems, affecting the biota. Chlorinated organic pollutants are formed when chlorine react with organic material. LÄS MER

  7. 5. Economic Analysis on Electrification of Rural Villages in Eastern Zambia

    Kandidat-uppsats, Göteborgs universitet/Institutionen för nationalekonomi med statistik

    Författare :Jesper Eriksson; Johan Tiselius; [2013-06-19]
    Nyckelord :;

    Sammanfattning : A large proportion of Zambia’s population lives in rural areas and only 3 percent of them have access to electricity. This means that they have to cook over open fire that requires firewood, and with a growing population this usage will increase deforestation. LÄS MER