Search for dissertations about: "biobränslen"

Showing result 1 - 5 of 49 swedish dissertations containing the word biobränslen.

2. 1. Egypt Ignited : How Steam Power Arrived on the Nile and Integrated Egypt into Industrial Capitalism (1820s-76)

   Author : Amr Ahmed; Humanekologi; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Energy history; history of technology; environmental history; steam power; capitalism; Industrial Revolution; Global warming; Egypt; modern history; agrarian production; biofuels; Sugar industry; cotton; Energihistoria; Teknikhistoria; Miljöhistoria; Ångmaskin; Kapitalism; Industriella revolutionen; global uppvärmning; Egypten; Modern historia; Jordbruksproduktion; biobränslen; Sockerindustrin; Bomull;

   Abstract : How did fossil-fuelled technology find its way to Egypt on its way to global dominance? This thesis presents a socioecological history of energy technologies in agrarian production in pre-colonial Egypt (1820s – 76). It situates them in the nineteenth century, understood as the beginning of the epoch of the Capitalocene; and in Egypt’s case, this is simultaneously part of the rise of Britain’s fossil empire. READ MORE

4. 2. Catalytic Steam Pyrolysis of Biomass for Production of Liquid Feedstock

   Author : Efthymios Kantarelis; Weihong Yang; Tobias Richards; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pyrolysis; Catalytic Cracking; Catalytic Upgrading; Biomass to Liquids; Bio-fuels; Πυρόλυση; Καταλυτική διάσπαση; Καταλυτική αναβάθμιση; Biomass to Liquids; Βιοκαύσιμα; Pyrolys; Katalytisk Krackning; Katalytisk uppgradering; Biomass to Liquids; biobränslen; Chemical Engineering; Kemiteknik; Energy Technology; Energiteknik; Teknisk materialvetenskap; Materials Science and Engineering;

   Abstract : The current societal needs for fuels and chemical commodities strongly depend on fossil resources. This dependence can lead to economic instabilities, political problems and insecurity of supplies. READ MORE

5. 3. Zeolite Membranes for Production of Biofuels

   Author : Erik Sjöberg; Joaquin Coronas; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Technology; Kemisk teknologi;

   Abstract : To deal with the increasing demand of renewable fuels, more efficient processes for the production of biofuels are needed. Zeolite membranes have the potential to improve many existing processes that could be used for production of biofuels. Methanol is a potential biofuel that may be produced from synthesis gas in an equilibrium limited reaction. READ MORE

6. 4. Conversion processes for biofuel production

   Author : Jerry Luis Solis; Yohannes Kiros; Mohammad Taherzadeh; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Second-generation biofuels; biodiesel; heterogeneous catalysts; non-edible oils; ethanol; residual biomass; native yeast strains.; Andra generationens biobränslen; biodiesel; heterogena katalysatorer; oätliga oljor; etanol; rester av biomassa; naturliga jäststammar; Chemical Engineering; Kemiteknik; Energy Technology; Energiteknik;

   Abstract : Despite the global positive impacts of soybean-, maize- and sugarcane-based (first-generation) liquid biofuels, several drawbacks pertaining to increased use of agricultural land, causing deforestation in some countries and extensive practice of fertilizers have been observed. As a result, developing advanced (second- and third-generation) liquid biofuels have been identified as better alternatives and are considered to be of great importance in the future. READ MORE

7. 5. Enhancing the Treatment of Systems Integration in Long-term Energy Models

   Author : Manuel Welsch; Mark Howells; Erik Ahlgren; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power system models; Energy system models; Resource system models; Smart Grids; Operating reserve; Biofuels; Sub-Saharan Africa; Ireland; Mauritius; ; kraftsystemmodeller; energisystemmodeller; resursmodeller; smarta elnät; operativ reservkapacitet; biobränslen; Afrika söder om Sahara; Irland; Mauritius; ; SRA - Energy; SRA - Energi;

   Abstract : Securing access to affordable energy services is of central importance to our societies. To do this sustainably, energy systems design should be – amongst other things – environmentally compliant and reconcile with the integrated management of potentially limiting resources. READ MORE