Essays about: "alkali metals"

Found 5 essays containing the words alkali metals.

1. 1. Thermodynamic Equilibrium Prediction of Corrosion Tendency in Fluidized-Bed Combustion of Solid Waste

   University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Author : Aida Hosseinian; [2017]
   Keywords : Waste to Energy; Fluidized Bed Boiler; Combustion; Corrosion; Factsage; Chemical Fractionation; Waste-derived Fuel;

   Abstract : Global warming and air pollution are two issues of greatest concerns to human life in recent years. Environmental concerns and econimal/political independency of fossil fuels have been the driving force of developing interest in renewable resources of energy for many countries. READ MORE

3. 2. Influence of Potassium on Gasification Performance

   University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Author : Hepa Rasol; [2016]
   Keywords : Biomass; pyrolysis; steam and CO2 gasification; fluidized bed reactor; alkali metals; reaction rate; reactivity; GC- MS; TGA; bio- char and bio- tar;

   Abstract : To release energy from chemically stored energy in the biomass was the new investigation in recent years. Utilizing of biomass for this purpose occur in two different ways, directly by burning (combustion) the biomass and indirectly by pyrolysis process which will convert the biomass to three main products, bio- tar, bio- char and synthetic gas. READ MORE

4. 3. Computational fluid dynamics (CFD) study of co-firing of coal and pretreated biomass

   University essay from KTH/Energi- och ugnsteknik

   Author : A S M Abdul Hye; [2014]
   Keywords : Computation fluid dynamics; co-firing; emission; boiler; coal; biomass; torrefied biomass;

   Abstract : This master thesis describes the co-firing concept, benefits and opportunities of pretreated biomass in pulverized coal boilers for industrial use. Burning fossil fuels, i.e. coal is under immense political pressure as European Union (EU) and other countries are trying to bring down the CO2 emission. READ MORE

5. 4. Arsenic removal using biosorption with Chitosan : Evaluating the extraction and adsorption performance of Chitosan from shrimp shell waste

   University essay from KTH/Kemi

   Author : Robin Westergren; [2006]
   Keywords : Adsorption; arsenic; Chitosan; ion-exchange; isotherm; Adsorption; arsenik; Chitosan; Jonbyte; Isoterm; Adsorción; arsénico; quitosana; intercambio iónico; isoterma; ;

   Abstract : Nicaragua is a country in which the toxic metal contamination of freshwater resources has become an increasingly important problem in certain regions posing a threat to the environment as well as to human health. Among the metals found in the waters of Nicaragua, arsenic is one of the most problematic since its long time consumption is connected to serious health problems such as cancer and neurological disorders. READ MORE

6. 5. Evaluation of alkali- impregnated honeycomb catalysts for NOx reduction in the SCR-process

   University essay from Institutionen för teknik och design

   Author : Sofia Johansson; [2006]
   Keywords : SCR; KCl; K2SO4; ZnCl2; wet impregnation; catalyst; deactivating; activity;

   Abstract : Samples of SCR catalysts were impregnated with the following alkali salts; KCl, K2SO4 and ZnCl2 at two different concentrations in a wet impregnation method. The activities of the six samples were measured in a test reactor and at different temperatures between 250-350 ºC. Compared to fresh catalyst, the impregnated samples all had lower activity. READ MORE