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National Repository of Grey Literature 14 records found  previous11 - 14  jump to record: Search took 0.00 seconds. 
Optimization of Microwave Glycerolysis of Crosslinked Rigid PU Foams for Using Recyclate in Production
 Figalla, Silvestr ; Kučera, František (referee) ; Petrůj, Jaroslav (advisor)
The theoretical part summarizes the chemical recycling processes of polyurethane and polyisocyanurate insulation foams and methods of polyols preparation from their alcoholysates. Emphasis is placed on the use of microwave heating during depolymerization, as a perspective energy source for chemolysis processes. The practical part is focused on optimization of recyclates preparation derived from polyisocyanurate foams and polyethylene terephthalate by microwave enhanced glycerolysis. Recyclates obtained were verified for their workability and applicability in blends with virgin polyols in polyisocyanurate foam manufacture process.
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Waste Recycling Possibilities of Rigid PU Foams from the Production of KingSpan CZ
 Figalla, Silvestr ; Kučera, František (referee) ; Petrůj, Jaroslav (advisor)
The theoretical part of the bachelor thesis evaluates methods and trends of recycling polyurethane materials with the emphasis on rigid polyurethane foams used as thermo isolation building material. The experimental part is focused on glycerol process verification as an alcoholization agent in the regenerative process of polyol, together with perspective microwave heating of reaction mixture. The final part of the work suggests further steps in the development of above mentioned process with the aim of its transforming into technical practice.
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Evaluation of technology for the biomass incineration.
 Trna, Lukáš ; Tabasová, Andrea (referee) ; Jícha, Jaroslav (advisor)
The objective of this bachelor‘s thesis is to provide general information about biomass and technologies for its using. The thesis is diveded into four main parts. The first part describe sources of biomass, its adaptation and its processing for energy purposes. The second part is more comprehensive and mentions individual technoligies and possibilities of final using of biomass. The third part sums sup ecological falls and efects of production biomass on environment. The fourth part deals with economics and compares costs of the most available technolgies for gaining thermal energy.
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Liquefaction of Sandy Deposits of Lignite Mines in Lausitz Region
 Herle, Ivo
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National Repository of Grey Literature : 14 records found   previous11 - 14  jump to record:
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