Abstract
Separation of terpenoids from terpenes in citrus essential oils (CEOs) downstream processing is essential for practical applications. In this work, 19 deep eutectic solvents (DESs), formed by combining quaternary ammonium salts as hydrogen bond acceptors (HBAs) with alkanediols, glycols, and monocarboxylic acids as hydrogen bond donors (HBDs), were utilized to evaluate their performance in extractive deterpenation of model CEOs. The effects of HBA and HBD structures, including the alkyl chain length and the anion and HBD types, on extraction efficiency, were explored and interpreted from conductor-like screening model for realistic solvents interaction analysis. The DES TBAC:1,3BD(1:2) composed of tetrabutylammonium chloride as HBA and 1,3-butanediol as HBD was further used for liquid–liquid equilibrium investigation, where the data were well fitted using the non-random two-liquid model. With high extraction performance at various temperatures and feed concentrations, TBAC:1,3BD(1:2) is a promising candidate for extractive deterpenation of CEOs.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
