Search for dissertations about: "char gasification thesis pdf"

Showing result 1 - 5 of 49 swedish dissertations containing the words char gasification thesis pdf.

2. 1. Biomass gasification in ABFB : Tar mitigation

   Author : Nemanova Vera; Klas Engvall; Joan Salvadó; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ash; biomass; char; gasification; iron-based; petcoke; tar; Chemical Engineering; Kemiteknik;

   Abstract : Biomass gasification may be an attractive alternative for meeting future energy demand. Although gasification is a mature technology, it has yet to be fully commercialised due to tar formation. This study focuses on the tar mitigation in gas produced in an atmospheric bubbling fluidised bed (ABFB) gasification system. READ MORE

4. 2. Alkali-enhanced gasification of biomass : laboratory-scale experimental studies

   Author : Albert Bach-Oller; Kentaro Umeki; Viktor Scherer; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; alkali; biomass; gasification; tar; soot; potassium; char; syngas; enhanced; Energiteknik; Energy Engineering;

   Abstract : Gasification seeks to break carbonaceous materials into synthetic gas (CO+H2) which can be subsequently upgraded into valuable products. Thus gasification can be utilized to convert low grade biomass stocks into carbon-neutral chemicals heat and power. READ MORE

5. 3. Benzene-char conversion and particle-vapor characterization in biomass gasification

   Author : Mario Morgalla; Michael Strand; Leteng Lin; Henrik Wiinikka; Linnéuniversitetet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biomass gasification; fluidized bed; particulate matter; aerosol; char; tars; benzene conversion.; Bioenergiteknik Energi- och Miljöteknik; Bioenergy Technology;

   Abstract : Biomass is increasingly attracting attention as an alternative to fossil fuels. Gasification permits the thermochemical conversion of biomass into a product gas rich in carbon monoxide and hydrogen. The product gas can be further processed to generate heat, electricity, synthesis gas, chemicals, and biofuels. READ MORE

6. 4. Pyrolysis of biomass. Rapid pyrolysis at high temperature. Slow pyrolysis for active carbon preparation

   Author : Rolando Zanzi; KTH; []
   Keywords : rapid pyrolysis; pyrolysis; wood; agricultural residues; biomass; char; tar; gas; char reactivity; gasification; steam; active carbon;

   Abstract : Pyrolysis of biomass consists of heating solid biomass inthe absence of air to produce solid, liquid and gaseous fuels.In the first part of this thesis rapid pyrolysis of wood(birch) and some agricultural residues (olive waste, sugarcanebagasse and wheat straw in untreated and in pelletized form) athigh temperature (800ºC–1000ºC) is studied ina free fall reactor at pilot scale. READ MORE

7. 5. Investigating the Reaction Kinetics of Tropical Wood Biomass : A Prospect for Energy Recovery

   Author : Kehinde Oluoti; Högskolan i Borås; []
   Keywords : Wood; Pyrolysis; gasification; char; kinetic parameters; SEM-EDX; AAEM; Resursåtervinning; Resource Recovery;

   Abstract : The utilization of wood biomass for energy recovery purposes is a phenomenon that is increasingly attracting attentions from researchers, companies and countries all over the world. The effect of climate change as largely represented by global warming leading to glacier ice melting and an unprecedented rise in sea level is a worrisome development. READ MORE