Separation of 2,3-Butanediol from Fermentation Broth via Cyclic and Simulated Moving Bed Adsorption Over Nano-MFI Zeolites,ACS Sustainable Chemistry & Engineering

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Separation of 2,3-Butanediol from Fermentation Broth via Cyclic and Simulated Moving Bed Adsorption Over Nano-MFI Zeolites
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2024-09-12 , DOI: 10.1021/acssuschemeng.4c04121
Jianpei Lao ₁ , Qiang Fu ₁ , Marco Avendano ₁ , Jason A. Bentley ₁ , Yadong Chiang ₁ , Matthew J. Realff ₁ , Sankar Nair ₁

Affiliation

The biomass-based platform molecule 2,3-butanediol (2,3-BDO) has a wide range of applications in production of sustainable fuels, chemicals, synthetic rubber, and others. However, the selective separation of 2,3-BDO from multicomponent fermentation broths presents challenges due to its low concentration, high solubility in water, high boiling point, and presence of many other species. Here, we demonstrate remarkably selective enrichment and recovery of 2,3-BDO from a corn stover hydrolysate fermentation broth by a pure-silica nano-MFI-type zeolite adsorbent. By means of cyclic and simulated moving bed adsorption processes, we obtained concentrated aqueous 2,3-BDO streams from the fermentation process stream with ∼93% purity and 3-fold enrichment, and >98% purity and 8-fold enrichment, respectively. These findings provide strong support for large-scale adsorptive separation for biobased 2,3-BDO production.

中文翻译：

通过纳米 MFI 沸石上的循环和模拟移动床吸附从发酵液中分离 2,3-丁二醇

基于生物质的平台分子 2,3-丁二醇 (2,3-BDO) 在可持续燃料、化学品、合成橡胶等生产中具有广泛的应用。然而，由于 2,3-BDO 浓度低、水中溶解度高、沸点高以及存在许多其他物质，因此从多组分发酵液中选择性分离 2,3-BDO 面临着挑战。在这里，我们展示了通过纯二氧化硅纳米 MFI 型沸石吸附剂从玉米秸秆水解产物发酵液中显着选择性富集和回收 2,3-BDO。通过循环和模拟移动床吸附过程，我们从发酵工艺流中获得了浓缩的 2,3-BDO 水流，纯度分别为 ∼93% 和 3 倍富集，以及 >98% 纯度和 8 倍富集。这些发现为大规模吸附分离生物基 2,3-BDO 生产提供了强有力的支持。

更新日期：2024-09-12

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