Analiza procesnih sistemov za metanacijo

magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo

Špela Krajnc (Author), Iztok Golobič (Mentor), Matevž Zupančič (Co-mentor)

Abstract

Prejšnje desetletje je bilo najtoplejše v zadnjih 140 letih, odkar se opravljajo podrobne meritve. Potrebno je najti načine, s katerimi bo naš gospodarski razvoj zares trajnosten in s katerim bomo izpolnili zaveze Pariškega sporazuma. Proizvodnja biometana iz elektrike iz obnovljivih virov in iz odpadkov ali lesne biomase je trenutno eden izmed najbolj obetavnih načinov za shranjevanje velikih količin energije. Izdelali smo analizo procesnih tehnologij pridobivanja biometana iz obnovljivih virov ogljika. Pri tem smo se osredotočili na lesno biomaso. Opisali smo biološko metanacijo, ki poteka s pomočjo mikroorganizmov, in katalitsko metanacijo, ki temelji na reakciji s katalizatorjem. Pred tem procesom metanacije je potrebno sintezni plin iz uplinjanja lesne biomase potrebno očistiti trdnih delcev ter raznih žveplovih in dušikovih spojin do vrednosti pod 1 ppm. Na osnovi pregleda obstoječih tehnologij in pilotnih projektov ocenjujemo, da je ključen problem zagotavljanje zadosti čistega ogljikovega dioksida za proces metanacije. Pred injiciranjem biometana se iz njega odstrani ogljikov dioksid in izboljša vsebnost metana, ki mora biti podobna obstoječemu plinovodnemu omrežju, to je okoli 98 %.

Keywords

magistrske naloge;procesni sistemi;metanacija;katalitična metanacija;biološka metanacija;biometan;lesna biomasa;

Data

Language:	Slovenian
Year of publishing:	2020
Typology:	2.09 - Master's Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[Š. Krajnc]
UDC:	662.63:547.211:502.174.3(043.2)
COBISS:	16126211
Views:	637
Downloads:	208
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Analysis of processing systems for methanation
Secondary abstract:	The past decade has been the warmest in the last 140 years, since we began keeping records of temperature. In order to minimize further increases in temperature, we need to make our economic development truly sustainable by fulfilling the commitments of the Paris Agreement. Production of biomethane from electricity from renewable sources and from waste or wood biomass is currently one of the most promising ways to store large amounts of energy. We have conducted an analysis of processing technologies for the production of biomethane from renewable carbon sources with a special focus on wood biomass. We have described the biological methanation that occurs with the help of microorganisms and the catalytic methanation, which is based on the reaction with a catalyst. Prior to methanation, the synthesis gas extracted from wood biomass needs to be cleaned of solids parts and various sulfur and nitrogen compounds to values below 1 ppm. Based on a review of existing technologies and pilot projects, we estimate that the key problem is the provision of sufficiently pure carbon dioxide for the methane process. Prior to injection into the gas grid, biomethane needs to be cleaned of carbon dioxide and improved to increase the methane content, which must be similar to the existing pipeline network, i.e. about 98%.
Secondary keywords:	master thesis;processing systems;catalytic methanation;biological methanation;biomethane;gasification;wood biomass;
Type (COBISS):	Master's thesis/paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. Ljubljana, Fak. za strojništvo
Pages:	XXII, 63 str.
ID:	11480320