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- Title
Evaluation of a Prototype for Electrochemical pH-Shift Crystallization of Succinic Acid.
- Authors
Kocks, Christian; Wall, Diana; Jupke, Andreas
- Abstract
Downstream processing of biotechnologically produced carboxylic acids, such as succinic acid, poses environmental and economic challenges. Conventional downstream processes cause large amounts of waste salts, which have to be purified or disposed of. Therefore, lean and waste-free downstream processes are necessary for the biotechnological production of succinic acid. Electrochemical downstream processes gain especially significant attention due to low chemical consumption and waste reduction. This work presents the pH-dependent solid-liquid equilibrium of succinic acid, a prototype for electrochemical pH-shift crystallization processes, and its characterization. Based on the supersaturation, energy consumption, and electrochemical protonation efficiency the proposed electrochemical pH-shift crystallization is evaluated. This evaluation highlights the potential of the proposed electrochemical crystallization processes as waste-free and economically attractive processes for bio-based succinic acid production.
- Subjects
ELECTROCRYSTALLIZATION; SUCCINIC acid; SOLID-liquid equilibrium; WASTE minimization; CARBOXYLIC acids; SUPERSATURATION
- Publication
Materials (1996-1944), 2022, Vol 15, Issue 23, p8412
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma15238412