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@ARTICLE{Gausmann:904479,
author = {Gausmann, Marcel and Kocks, Christian and Pastoors,
Johannes and Büchs, Jochen and Wierckx, Nick and Jupke,
Andreas},
title = {{E}lectrochemical p{H}-{T}-{S}wing {S}eparation of
{I}taconic {A}cid for {Z}ero {S}alt {W}aste {D}ownstream
{P}rocessing},
journal = {ACS sustainable chemistry $\&$ engineering},
volume = {9},
number = {28},
issn = {2168-0485},
address = {Washington, DC},
publisher = {ACS Publ.},
reportid = {FZJ-2021-06049},
pages = {9336 - 9347},
year = {2021},
abstract = {Biotechnological production of platform chemicals such as
(di)carboxylic acids poses economic and environmental
challenges in downstream processing. With conventional
downstream processes, waste salts are produced in more than
equimolar amounts with the product. Therefore, lean
waste-free downstream processes are needed to compete with
petrochemical products. This work presents a joint
development of a biobased production route for itaconic acid
featuring low pH value fermentation, reactive extraction,
and electrochemical product recovery. By the implementation
of an electrochemical pH-T-swing separation process,
biobased itaconic acid with a purity of more than $99\%$ was
recovered in the crystalline form from the fermentation
broth. Based on the measured liquid–liquid and
solid–liquid equilibrium, a feasible overall yield of
$>90\%$ for itaconic acid recovery was calculated for the
proposed downstream process. An electrochemical protonation
efficiency of $96.2\%$ was determined when the pH-shift
electrolysis operates within the buffer range of the
itaconic acid. The proposed process eliminates the salt
waste from pH-adjusting steps and can perspectively operate
with electricity costs being lower than costs for sulfuric
acid and sodium hydroxide elsewise required for the pH-swing
steps.},
cin = {IBG-1},
ddc = {540},
cid = {I:(DE-Juel1)IBG-1-20101118},
pnm = {2172 - Utilization of renewable carbon and energy sources
and engineering of ecosystem functions (POF4-217)},
pid = {G:(DE-HGF)POF4-2172},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000675465900021},
doi = {10.1021/acssuschemeng.1c02194},
url = {https://juser.fz-juelich.de/record/904479},
}