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In situ production and renewal of biocatalytic coatings for use in enzymatic reactive distillation
- Source :
- Chemical Engineering Journal. 306:992-1000
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- Reactive distillation is one of the most well-established integrative separation processes in chemical industry which is used for the production of e.g. fuel additives. Recently, the feasibility of enzymes in reactive distillation columns was demonstrated, which possibly extends the scope towards more selective reactions with chiral products. However, the low thermal stability of enzymes necessitates a more frequent catalyst exchange which is usually a knock-out criterion for this process due to very high costs of catalytic structures and long process shut down times. In this work, an in situ production method for biocatalytic coatings on structured packings is presented which enables production and renewal of the catalytic structures in place, i.e. without disassembly of the column internals. By flooding the column with reacting enzyme/silica-sol, gauze structured packings are covered with a uniform layer of gel, which after drying results in a catalytic coating containing immobilized enzymes. The in situ method could help simplify the catalyst exchange in reactive distillation processes and furthermore allows changes in the reactive section in terms of amount and position of the catalyst which are important process parameters in the design phase of reactive distillation processes. Video: For a video showing the in situ procedure, please see Supplementary data .
- Subjects :
- Chemical substance
Immobilized enzyme
business.industry
Chemistry
General Chemical Engineering
02 engineering and technology
General Chemistry
Chemical industry
engineering.material
010402 general chemistry
01 natural sciences
Industrial and Manufacturing Engineering
0104 chemical sciences
Catalysis
020401 chemical engineering
Chemical engineering
Coating
Scientific method
Reactive distillation
engineering
Environmental Chemistry
Thermal stability
0204 chemical engineering
business
Subjects
Details
- ISSN :
- 13858947
- Volume :
- 306
- Database :
- OpenAIRE
- Journal :
- Chemical Engineering Journal
- Accession number :
- edsair.doi...........981dafd5872399a4a856a444d18ff7de