Search for dissertations about: "Bench-scale experiment"

Showing result 1 - 5 of 6 swedish dissertations containing the words Bench-scale experiment.

2. 1. Closing the Loop by Combining UASB Reactor and Reactive Bed Filetr Technology for wastewater Treatment : Modelling and Practical Approaches

   Author : Raúl Rodríguez-Gómez; Gunno Renman; Björn Vinnerås; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bench-scale experiment; Modelling; Polonite; Sorbulite; UASB; Wastewater; Mark- och vattenteknik; Land and Water Resources Engineering;

   Abstract : A laboratory-scale upflow anaerobic sludge blanket (UASB) reactor followed by a packed bed reactor (PBR) filled with Sorbulite® in the lower part and Polonite® in the upper part was used to treat household wastewater in a 50-week experiment. A model was developed to describe the performance of the UASB reactor, including mass transfer through the film around anaerobic granules, intra-particle diffusion and bioconversion of the substrate. READ MORE

4. 2. From torrefaction to gasification : Pilot scale studies for upgrading of biomass

   Author : Martin Strandberg; Anders Nordin; Linda Pommer; Jaap Kiel; Umeå universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Torrefaction; biomass; pilot scale; continuous reactor; grindability; entrained flow gasification; degree of torrefaction; biomass powder;

   Abstract : Increasing the share of biomass, preferably by replacing fossil fuels, is one way to mitigate the present climate change. Fossil coal can be directly replaced by co-combustion of coal and biomass and fossil engine fuels (gasoline and diesel) could potentially partly be replaced by synthetic renewable fuels produced via entrained flow gasification of biomass. READ MORE

5. 3. Pyrolysis of Biodegradable Waste for Negative Carbon Emissions

   Author : Shule Wang; Weihong Yang; Pär Jönsson; Chunfei Wu; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pyrolysis; Organic fraction of municipal solid waste OFMSW ; Anaerobic digestion; Bioenergy with carbon capture and storage BECCS ; Methane production; 热解，市政污泥，消化物，碳负排放，生物降解垃圾，甲烷，生物能源与碳捕获和储存; pyrolys; slam; rötrester; negative kolemissioner; biologiskt nedbrytbart avfall; metan; BECCS; Teknisk materialvetenskap; Materials Science and Engineering; Chemical Engineering; Kemiteknik; Energy Technology; Energiteknik;

   Abstract : Bioenergy with Carbon Capture and Storage represents a crucial technology that enables an energy production with negative carbon emissions, which is needed to achieve global climate goals. Appropriated management of biodegradable waste, including biodegradable lignocellulosic waste, sewage sludge, organic fraction of municipal solid waste, can make this contribution. READ MORE

6. 4. Enhanced Catalytic Pyrolysis of Biomass for High-Quality Biofuel Production

   Author : Devy Kartika Ratnasari; Weihong Yang; Pär Jönsson; Tobias Richards; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Al-MCM-41; lignocellulose biomass; H-ZSM-5; kinetic study; catalyst regeneration;

   Abstract : The rapid increase in energy demand, the extensive use of fossil fuels, and the urgent need to reduce carbon dioxide emissions have raised concerns in the transportation sector, since transportation has been primarily dependent on fossil fuels. Biofuel from biomass can make significant contributions to overcome the expected depletion of fossil fuels and reduce carbon emissions. READ MORE

7. 5. Catalytic Reduction of NOx on Heavy-Duty Trucks

   Author : Christian Künkel; Avdelningen för kemiteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik och kemisk teknologi; Chemical technology and engineering; real time; strategy; model; catalysis; exhaust gas; diesel; automotive; deNOx; NOx reduction; NOx storage; HC-SCR; Carbochemistry; petrochemistry; fuels and explosives technology; Petrokemi; bränslen; sprängämnen;

   Abstract : The objective of the work described in this thesis is to identify the principles and parts of an aftertreatment system for the catalytic NOx reduction for heavy-duty diesel vehicles, and to demonstrate such a system in full-scale. The reducing agent is diesel fuel. READ MORE