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Abstract
Biobutanol is an important platform chemical which can be produced from renewable resources via the acetone-butanol-ethanol (ABE) fermentation process. However, product inhibition severely limits the final butanol concentrations (< 2 wt%), making the conventional downstream
processing via steam-stripping distillation very expensive. One way to relieve product inhibition is by in situ product removal, using the fermentation gasses to strip the produced solvents from the fermenter. However, subsequent energy-intensive separation steps are still needed to completely recover and purify the produced biobutanol.
In this work, a novel adsorption-desorption process is proposed to recovery biobutanol from the vapor mixture generated via gas-stripping. Two adsorbent materials, with a different selectivity, were combined in one cycle. In a first step, biobutanol is recovered from the vapor mixture using a butanol-selective zeolite (ITQ-29). During the regeneration of this material, co-adsorbed side products
are captured using a second material (Si-CHA). This material is not selective for butanol, yet is able to remove the most important side products. In this way, 99% of the adsorbed 1-butanol on ITQ-29 could be recovered at a purity of 99.5 mole-%.
Original language | English |
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Title of host publication | Communications in Agricultural and Applied Biological Sciences |
Subtitle of host publication | Special Issue: 24th National Symposium for Applied Biological Sciences |
Place of Publication | Ghent |
Pages | 29-29 |
Number of pages | 1 |
Volume | 84 |
Edition | 1 |
Publication status | Published - Feb 2019 |
Event | 24th National Symposium of Applied Biological Sciences - Duration: 4 Feb 2019 → 4 Feb 2019 |
Publication series
Name | Communications in Agricultural and Applied Biological Sciences |
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Number | 1 |
Volume | 84 |
ISSN (Electronic) | 1379-1176 |
Conference
Conference | 24th National Symposium of Applied Biological Sciences |
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Abbreviated title | NSABS 2019 |
Period | 4/02/19 → 4/02/19 |
Keywords
- zeolite
- Biobutanol
- Adsorption
Fingerprint
Dive into the research topics of 'Combining shape-selective zeolites for the efficient recovery and purification of biobutanol via adsorption'. Together they form a unique fingerprint.Projects
- 1 Finished
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SRP6: Strategic Research Programme: Exploiting the Advantages of Order and Geometrical Structure for a Greener Chemistry
Desmet, G., Denayer, J., Denayer, J., Desmet, G. & Denayer, J.
1/11/12 → 31/10/22
Project: Fundamental
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24th National Symposium of Applied Biological Sciences
Julien Cousin-Saint-Remi (Organiser)
4 Feb 2019Activity: Participating in or organising an event › Participation in conference
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Combining shape-selective zeolites for the efficient recovery and purification of biobutanol via adsorption
Benjamin Claessens (Speaker), Stijn Van Der Perre (Contributor), Julien Cousin-Saint-Remi (Contributor), Gino Baron (Contributor) & Joeri Denayer (Contributor)
4 Feb 2019Activity: Talk or presentation › Talk or presentation at a conference