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Division of Environmental Physics - Students
Faculty of Mathematics, Physics and Informatics, Comenius University Bratislava

Students



Samuel OMASTA
alumni student



Bc. study
2014 - 2015

Supervisor: Karol Hensel
Consultant: --
Title:
Tar removal by low temperature plasma
Abstract:
Biomass is an alternative source of an energy that can be the product of targeted agricultural production or can be obtained from a biological waste. Its most perspective use is its gasification to a syntetic gas (syngas), which calorific value can reach 3 to 7 MJ/Nm3. The gas can be used to obtian either a heat or electric energy by gas incineration in combustion engines and turbines connected to cogenerative units. The gasification of the biomass, however, usually also leads to a production of by-products, such as nitrogen oxides and sulfur oxides, ashes and tars. Tars have a negative effect on the living enviroment and can also cause technical malfunctions in a incineration system. Therefore it is necessary to clean the syngas in order to meet the emission and the technical standards. In this thesis we discuss the problem of tars and review the existing methods of their removal including the method of low temperature plasma We introduce several types of electric discharges used for the tar disposal, their efficiency in various conditions and by-products. As a part of our work, we constructed a reactor of dielectric barrier discharge type and used it for tar removal. We investigated chemical changes in gases exposed to the discharge in various gases and temperatures. We tested the reactor and its efficiency for naphtalene removal (as a model tar) in various gases, determined its main by-products and their cocentrations and also considered further improvements of the system The experiment results showed that low temperature plasma is capable of effectively removing tar and may be potentially useful for the cleaning of the syngas.


Active

  Mária CÍBIKOVÁ

  Mostafa E. HASSAN

  Axel HENNECKE

  Daniel JAKUBČIN

  Radoslav JANKOVIČ

  Jana KŠANOVÁ

  Katarína KUČEROVÁ, born Tarabová

  Aleksandra Y. LAVRIKOVA

  Jakub MASLÍK

  Emanuel MAŤÁŠ

  Robin MENTHÉOUR

  Gervais B. NDIFFO YEMELI

  Veronika OKRUHLICOVÁ

  Slavomir PÁSZTOR

  Dominika SERSENOVÁ

  Patrik ŠTÍPALA

  Peter TÓTH

Alumni

  

  Daniela BARTKOVÁ

  Hana BUCHHOLCEROVÁ

  Richard CIMERMAN

  Veronika DRENINOVÁ, born Biskupičová

  Lukáš DVONČ

  Július GÁLIK

  Dušan GIERTL

  Paulína HALUŠKOVÁ

  Lenka CHLÁDEKOVÁ

  Patrícia IVANOVÁ

  Karolína JANÍKOVÁ

  Igor JEDLOVSKÝ

  Matej KINTLER

  Matej KOVÁČ

  Zuzana KOVAĽOVÁ, born Šipoldová

  Daniela KUNECOVÁ

  Lenka LEŠTINSKÁ

  Michal LEŠTINSKÝ

  Dominika MIHÁLIKOVÁ

  Pavol MIŠENKO

  Matej MOLNÁR

  Adriana NIKLOVÁ

  Samuel OMASTA

  Lucia PAKOSOVÁ

  Marek PAVLE

  Michal PELACH

  Adam POLAKOVIČ

  Branislav PONGRÁC

  Milan PRAČKO

  Diana RAČKOVÁ

  Martin SELVEK

  Jozef SIČ

  Lucia STRIŽENCOVÁ

  Anna SUČANSKÁ

  Barbora TARABOVÁ

  Pavol VALOVIČ

  Martina VELÍSKOVÁ

  Veronika ZÁŇOVÁ

  Juraj ZIGO

  Andrea ŽILKOVÁ


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