In Situ Attenuated Total Reflection Infrared Spectroscopic Monitoring of Supercritical CO2 Extraction for Green Process Applications

被引：1

作者：

Sterchi, Robert ^{[1
]}

Maeda, Nobutaka ^{[1
]}

Keller, Stefan ^{[2
]}

Zehnder, Beat ^{[2
]}

Meier, Daniel M. ^{[1
]}

机构：

[1] Zurich Univ Appl Sci ZHAW, Sch Engn SoE, Inst Mat & Proc Engn IMPE, CH-8400 Winterthur, Switzerland

[2] SITEC Sieber Engn AG, CH-8124 Maur, Switzerland

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2023年 / 62卷 / 08期

关键词：

HIGH-PRESSURE; CARBON-DIOXIDE; IONIC LIQUIDS; ATR-IR; ETHYL-ESTERS; FATTY-ACIDS; OIL; FLUIDS; OPPORTUNITIES; LIPIDS;

D O I：

10.1021/acs.iecr.2c03558

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Supercritical CO2 (scCO2) extraction of valuable chemicals from food, biomass, and residues thereof has recently been recognized as a sustainable process. In this study, we present a new design of an attenuated total reflection infrared (ATR-IR) spectroscopic cell for monitoring the extraction of fatty acid from almonds under scCO2 conditions. The newly designed ATR-IR cell allows in situ monitoring of changes of the composition of the almonds during the scCO2 extraction process at a pressure of up to 450 bar. Extracted components can be spectroscopically followed at a time resolution of 30 s. This allows fast and facile optimization of scCO2 conditions such as temperature, pressure, and extraction time.

引用

页码：3828 / 3832

页数：5

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