Towards Sustainable Lactic Acid Production: Avoiding Gypsum as a Byproduct by using Selective Liquid-Phase Adsorption.

Towards Sustainable Lactic Acid Production: Avoiding Gypsum as a Byproduct by using Selective Liquid-Phase Adsorption.
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迈向可持续乳酸生产:通过使用选择性液相吸附避免副产品石膏

DOI:
10.1002/cssc.201900847
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发表时间:
2019
期刊:
影响因子:
8.4
通讯作者:
M. Rose
M. Rose
中科院分区:
化学2区
文献类型:
--
作者:
L. Rübenach;J. Lins;E. Koh;M. Rose

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生物质的利用是从化石资源向可再生资源过渡的主要挑战之一。通常,从反应混合物中分离所需产物是最耗能的步骤。液相吸附是一种很有前途的分离技术,可以显着改善生物炼制中的下游加工。将高疏水性吸附剂应用于从水溶液中分离乳酸(LA)并避免作为副产物的石膏的形成。在单溶质和共吸附实验中获得了高吸收和选择性。多孔超交联聚合物(HCP)和聚合物基球形活性炭表现最好,并显示出优异的选择性选择性去除LA。解吸实验表明,HCP是从水溶液中分离LA的理想吸附剂,并能够生产无石膏的LA。
The utilization of biomass is one of the major challenges for the transition from fossil to renewable resources. Often, the separation of the desired product from the reaction mixture is the most energy‐intensive step. Liquid‐phase adsorption is a promising separation technology that could significantly improve downstream processing in biorefineries. Highly hydrophobic adsorbents were applied for the separation of lactic acid (LA) from aqueous solutions and to avoid the formation of gypsum as a byproduct. High uptakes and selectivity were obtained in single‐solute and co‐adsorption experiments. Porous hyper‐crosslinked polymers (HCP) and polymer‐based spherical activated carbon performed best and showed excellent selectivity for the selective removal of LA. Desorption experiments revealed that HCP was the ideal adsorbent for the separation of LA from aqueous solution and enabled the production of gypsum‐free LA.
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