Essays about: "Zeolites"

Showing result 6 - 10 of 12 essays containing the word Zeolites.

1. 6. Catalytic Upgrading of Fast Pyrolysis Bio-oil Using Zeolites

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Elena Wikberg; [2019]
   Keywords : ;

   Abstract : Fast pyrolysis bio-oil is considered as a possible source for production of liquid bio-fuels and bio-chemicals enabling the necessary transition to a renewable energy system. In this Master’s thesis work the upgrading of fast pyrolysis bio-oils with Fluid Catalytic Cracking (FCC) conversion process at industrially relevant conditions is studied using Fluid Catalytic Cracking Micro Activity Test (FCC MAT) unit at RISE ETC in Piteå, Sweden. READ MORE

3. 7. 3D Printed NovelZeolite 13X - Magnesium ChlorideComposites for Ammonia Storage

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Rafael Acosta Laisequilla; [2019]
   Keywords : Ammonia absorption 3D printing Zeolites;

   Abstract : In today’s world regulations to reduce vehicle emissions are only gettingtougher, from said regulations the concept of a Selective Catalytic Reduction(SCR) unit was born, designed to provide a healthy dose of ammonia (NH3)to reduce the NOx compound into harmless components such as water andnitrogen. In this thesis novel approaches where investigated, by combiningthe fast physical absorption and desorption properties of a highly porous ma-terial such as zeolites with the high storage capacity of metal chlorides wecan potentially improve NH3 dosing in the low temperature operating range,such as when vehicles have just been turned on. READ MORE

4. 8. Sulfur poisoning and regeneration of copper zeolites for NH3-SCR : Effect of SO2/SO3 ratio

   University essay from Luleå tekniska universitet/Kemiteknik

   Author : Åsa Högström; [2018]
   Keywords : Cu-zeolites; Ammonia-SCR; Sulfur poisoning; Regeneration; Kinetic model;

   Abstract : The road transportation is a big source for the release of NOx emissions. NOx has been confirmed to cause negative affect on the air-quality especially in the urban areas, there are therefore regulations for allowed released amount from vehicles. READ MORE

5. 9. Coke characterization on HZSM-5, Fe/ZSM-5, Ni/ZSM-5, and Fe-Ni/ZSM-5 from Catalytic Fast Pyrolysis of Biomass

   University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

   Author : Isa Duman; [2018]
   Keywords : Biomass; Bio-Oil; Catalytic Fast Pyrolysis; Coke; ZSM-5; Biomassa; Bio-Olja; Katalytisk Pyrolys; Koks; ZSM-5;

   Abstract : The combustion of fossil fuels has for a long time been a problem from an environmental and sustainability point of view, especially when it comes to the emissions of atmospheric carbon dioxide. The environmental concern has for instance shifted the attention towards finding new sustainable alternatives for producing chemicals and fuels, as a substitute to today’s dependence on fossil based crude oil. READ MORE

6. 10. Evaluation of sorption behavior of two reactive filter materials using dual column laboratory investigation.

   University essay from KTH/Mark- och vattenteknik

   Author : Daniel Megersa; [2015]
   Keywords : Onsite waste water treatment; Reactive filter materials; Polonite; Zeolite; Sorption; Ion-exchange; Adsorption; Precipitation; Dual-Column experiment;

   Abstract : Phosphorous and nitrogen are vital elements for the well-being of biological life. Industrial discharges, waste water infiltration systems, conventional waste water collection and treatment systems, agricultural runoffs and landfill leachates had been emitting significant quantity of these nutrients into water bodies. READ MORE