Title: Aufbereitung des flüssigen Produkts der gemischten Alkohol Synthese
Language: Deutsch
Authors: Kerschdorfer, Christian 
Qualification level: Diploma
Advisor: Rauch, Reinhard 
Assisting Advisor: Hofbauer, Hermann 
Binder, Matthias 
Issue Date: 2018
Number of Pages: 98
Qualification level: Diploma
as entrainer. Additionally, a process simulation with ASPEN Plus is carried out, which aims to simulate a separating process with ethanol and propanol as main products. The separation of the propanol/water azeotrope is simulated as an azeotrope rectification with propylaceatate as entrainer, as well as a membrane rectification. By means of the program ASPEN Energy Analyzer, a pinch analysis is implemented for the purpose of finding the minimum heating demand for the separation process. With the ambition to demonstrate the distribution of the sulfur components, another simulation is carried out, by adding the sulfur components to the feed stream. The simulation clarifies, if a desulphurization of the alcohols is necessary and gives information about possible enrichments in the process. Furthermore, a fractionated condensation of the product gas stream from the MAS-reactor is simulated in three steps. The results of the simulation are compared to a single condensation and shows if an early reduction of the separation effort is possible.

This thesis aims to the separation of the product of the mixed-alcohol-synthesis (MAS). For the execution of the synthesis, purified product gas (syngas) from the biomass-steam-gasification plant in Güssing is used. A concrete focus is laid on the main components of the mixed alcohols, Methanol, Ethanol and Propanol. Furthermore, insights into the conventional production and possible uses are provided. Moreover, this thesis emphasizes the necessity of the purity and the market value of the stated components. For the purpose of reducing sulfur components from the alcohols, different approaches are given. With the intention to analyze the distribution of the products, as well as possible impurities, a lab scale fractionated rectification is conducted. To accomplish the target of fractions close to the azeotrope composition of the propanol/water mixture, a multiple fractionated rectification is executed. The mentioned fractions, close to the propanol/water azeotrope, are used to remove the water through azeotrope rectification with proylacetate 753i L
Keywords: Biomasse; Synthesegas; Gemischte Alkohole
Biomass; Synthesis gas; Mixed alcohols
URI: https://doi.org/10.34726/hss.2018.37615
DOI: 10.34726/hss.2018.37615
Library ID: AC14551152
Organisation: E166 - Institut für Verfahrenstechnik, Umwelttechnik und technische Biowissenschaften 
Publication Type: Thesis
Appears in Collections:Thesis

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