Intensified and hybrid distillation technologies for production of high value-added products from lignocellulosic biomass

Nhien, Le Cao; Haider, Junaid; Long, Nguyen Van Duc; Lee, Moonyong

doi:10.1016/b978-0-12-824117-2.00002-8

Cited by 2 publications

(1 citation statement)

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“…The complexity characteristic of this mixture triggered several studies of recovering CY and IPA from different feed compositions of this mixture. , Zhang et al developed ED and MD processes for the separation of the CY/IPA/water mixture with different feed compositions, generated in the processes of rapeseed oil production, and they gave suggestions on different separation methods according to different ranges of water composition in the mixture. Besides the techniques of process intensification mentioned above, some studies used ethylene oxide (EO) as the dehydrating agent to remove the water content in the mixture in a reactive distillation (RD) column. − Furthermore, multiple functions, such as extraction and reaction, can be integrated into a process − or into a single RD column − to save capital cost, leading to a prominent effect on the reduction of the total annual cost (TAC). Inspired by these energy-saving designs, EO as the dehydrating agent and its usage in an RD column combined with multiple concepts of separation is proposed to apply to the CY/IPA/water mixture with different feed compositions.…”

Section: Introductionmentioning

confidence: 99%

Novel Process Development of Hybrid Reactive–Extractive Distillation System for the Separation of a Cyclohexane/Isopropanol/Water Mixture with Different Feed Compositions

Hua

Kuo

et al. 2022

Ind. Eng. Chem. Res.

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A cyclohexane (CY)/isopropanol (IPA)/water mixture has complex thermodynamic properties with three binary azeotropes and one ternary azeotrope. A configuration of doublecolumn reactive−extractive distillation (DCRED) is suitable to be used for the separation of this mixture with ethylene oxide (EO) as the dehydrating agent. Taking advantage of a large liquid−liquid envelope in the ternary map of this mixture, two novel process configurations are proposed in this study to separate the mixture with the percentage of water to total feed ranging from 10 to 90 mol %. A process configuration that includes a pretreatment section followed by a DCRED section (P-DCRED) was proven to be efficient in separating the mixture with the percentage of water ranging from 50 to 90 mol %, while only the DCRED process configuration showed its superiority when dealing with the mixture with the percentage of water ranging from 10 to 40 mol %. Compared to the traditional extractive distillation (ED) and another process of ED coupled with pervaporation (PV) in the recent literature, the novel processes proposed in this study can save a total annual cost (TAC) of 20 to 80%.

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