Sökning: "biofuel"
Visar resultat 21 - 25 av 210 avhandlingar innehållade ordet biofuel.
21. Developing efficient industrial systems through increased integration : applications in the forest industry
Sammanfattning : The starting point of this work is that it is possible for an industry to increase its product value and simultaneously decrease its use of resources and production of waste material if its material and energy flows are effectively integrated into a larger system. The character and the extent of a company's environmental impact is to a large extent determined in this interaction between companies and other external actors. LÄS MER
22. Dioxin emissions from small-scale combustion of bio-fuel and household waste
Sammanfattning : Denna avhandling behandlar rökgasutsläpp av persistenta organiska föroreningar, framförallt dioxiner, vid förbränning av fasta biobränslen och torrt hushållsavfall i relativt små anläggningar (5-600 kW) utan avancerad rökgasreningsteknik.Samförbränning av avfall och biobränsle i effektiva mindre biobränslepannor testades som en alternativ strategi till den vanligen förekommande storskaliga hanteringen och förbränningen fast hushållsavfall. LÄS MER
23. Conversion processes for biofuel production
Sammanfattning : 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. LÄS MER
24. Frame Analysis in Environmental Conflicts : The case of ethanol production in Brazil
Sammanfattning : Governments and policy-makers are currently dealing with some key issues as energy security in countries dependent on oil imports; global economic development, including increased food production; and controlling global climate change and greenhouse gas emissions. The perception that biofuel could solve these challenges simultaneously has led to the implementation of policy and regulatory mechanisms on the mandatory use of biofuels, resulting in a sharp increase in biofuel production and consumption. LÄS MER
25. A trinity of sense : Using biomass in the transport sector for climate change mitigation
Sammanfattning : This thesis analyses two strategies for decreasing anthropogenic carbon dioxide (CO2) emissions: to capture and store CO2, and to increase the use of biomass. First, two concepts for CO2 capture with low capture penalties are evaluated. LÄS MER
