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@PHDTHESIS{Kocks:994570,
author = {Kocks, Christian Uwe},
othercontributors = {Jupke, Andreas and von Langermann, Jan},
title = {{E}ntwicklung und {C}harakterisierung eines {P}rototyps
für die elektrochemische p{H}-{S}hift {K}ristallisation von
biotechnologisch hergestellter {B}ernsteinsäure},
school = {Rheinisch-Westfälische Technische Hochschule Aachen},
type = {Dissertation},
address = {Aachen},
publisher = {RWTH Aachen University},
reportid = {RWTH-2024-09388},
pages = {1 Online-Ressource : Illustrationen},
year = {2024},
note = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
University; Dissertation, Rheinisch-Westfälische Technische
Hochschule Aachen, 2024},
abstract = {The raw material transition requires a change in the value
chains in the chemical industryfrom fossil to renewable or
recycled carbon sources to meet sustainability pledges.
Platformchemicals such as carboxylic acids represent a
promising opportunity to establishsynthesis routes based on
industrial biotechnology. However, biotechnological
productioncan rarely compete with established petrochemical
processes. To render the biotechnological production of
platform chemicals economically and ecologically
competitive, new separation techniques are required for the
downstream processing of these molecules. Electrochemical
separation techniques show great potential for this purpose
since the use of electricity drastically reduces the use of
auxiliary chemicals and avoids saline wastewater,which is
one major economic and ecological disadvantage of the
conventional processing of biotechnologically produced
carboxylic acids. Within this work, a prototype for the
electrochemical pH-shift crystallization, integrated into a
biotechnological production process of succinic acid, is
presented, and experimentally characterized regarding
techno-economical aspects. Therefore, the necessary
thermodynamical property data of succinic acid are measured,
and the crystallization kinetics, nucleation, and growth are
investigated for the electrochemical
pH-shiftcrystallization. Based on these crystallization
studies a model for the electrochemical pH-shift
crystallization of succinic acid was developed, which allows
the estimation of the crystallization process and the design
of the prototype. Finally, the developed prototype for the
electrochemical pH-shift crystallization of succinicacid is
characterized to identify operating conditions for the
electrochemical pH-shift crystallization. Within the
operating window, the proposed crystallization process is
evaluated based on the measured solid-liquid equilibrium,
supersaturation, energy consumptionand electrochemical
protonation efficiency. Additionally, the results of
discontinuous and continuous electrochemical pH-shift
crystallization experiments from artificial andreal process
solutions are shown, which highlight the potential of the
electrochemical pH-shift crystallization as a waste-free and
economically attractive downstream processfor succinic acid
production.},
cin = {416310},
ddc = {620},
cid = {$I:(DE-82)416310_20151215$},
pnm = {BioSC - Bioeconomy Science Center (BioSC) /
$BioökonomieREVIER_INNO:$ Entwicklung der Modellregion
BioökonomieREVIER Rheinland, TP A (031B0918A)},
pid = {G:(DE-Juel1)BioSC / G:(BMBF)031B0918A},
typ = {PUB:(DE-HGF)11},
doi = {10.18154/RWTH-2024-09388},
url = {https://publications.rwth-aachen.de/record/994570},
}
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