同时优化模拟移动床吸附和蒸馏技术以回收 2,3 丁二醇

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

AIChE Journal Pub Date : 2024-11-26 DOI:10.1002/aic.18642

Marco Avendano, Qiang Fu, Jianpei Lao, Sankar Nair, Matthew J. Realff

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引用次数: 0

摘要

开发了一种模拟移动床（SMB）和蒸馏分离组合方案，用于从稀释发酵液中回收 2,3-丁二醇（BDO）。该方案被集成到一个木质纤维素生物精炼厂中，该厂以 BDO 为中间体，利用玉米秸秆生产碳氢化合物燃料。BDO 回收是该生物精炼厂最具挑战性的工艺之一；考虑到相关的高能耗，直接蒸馏被认为成本过高。另一种分离方法是在纳米多孔材料中吸附 SMB，这样可以去除 90% 的水，并降低后续蒸馏成本。我们使用严格的模型对 SMB 和蒸馏同时进行了优化。在将预计的最低燃料销售价格（MFSP）保持在每升汽油当量 0.66 美元（美元）（2.50/GGE，加仑汽油当量）以下的同时，还可将分离添加到生物精炼中。最后，还进行了敏感性分析，以评估吸附剂的成本和寿命、滴定浓度和 BDO 纯度的影响。

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Simultaneous optimization of simulated moving bed adsorption and distillation for 2,3-butanediol recovery

A combined simulated moving bed (SMB) and distillation separation scheme is developed to recover 2,3-butanediol (BDO) from a dilute fermentation broth. The scheme was integrated into a lignocellulosic biorefinery that produces hydrocarbon fuels from corn stover with BDO as an intermediate. BDO recovery is one of the most challenging processes in this biorefinery; and given the high associated energy duties, direct distillation is considered cost-prohibitive. An alternative separation is SMB adsorption in nanoporous materials, which can reject 90% of the water and reduce subsequent distillation costs. Rigorous models were used to optimize the SMB and distillation simultaneously. The separation can be added to the biorefinery while keeping the projected minimum fuel selling price (MFSP) below $0.66 USD (US dollars) per liter gasoline-equivalent ($2.50/GGE, gallon gasoline equivalent). Finally, sensitivity analyses were conducted to assess the effects of cost and lifetime of the adsorbent, titer concentration, and BDO purity.

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来源期刊

AIChE Journal 工程技术-工程：化工

CiteScore

7.10

自引率

10.80%

发文量

411

审稿时长

3.6 months

期刊介绍： The AIChE Journal is the premier research monthly in chemical engineering and related fields. This peer-reviewed and broad-based journal reports on the most important and latest technological advances in core areas of chemical engineering as well as in other relevant engineering disciplines. To keep abreast with the progressive outlook of the profession, the Journal has been expanding the scope of its editorial contents to include such fast developing areas as biotechnology, electrochemical engineering, and environmental engineering. The AIChE Journal is indeed the global communications vehicle for the world-renowned researchers to exchange top-notch research findings with one another. Subscribing to the AIChE Journal is like having immediate access to nine topical journals in the field. Articles are categorized according to the following topical areas: Biomolecular Engineering, Bioengineering, Biochemicals, Biofuels, and Food Inorganic Materials: Synthesis and Processing Particle Technology and Fluidization Process Systems Engineering Reaction Engineering, Kinetics and Catalysis Separations: Materials, Devices and Processes Soft Materials: Synthesis, Processing and Products Thermodynamics and Molecular-Scale Phenomena Transport Phenomena and Fluid Mechanics.