Abstract
The selective separation of benzene from hydrocarbon mixtures was investigated by way of liquid–liquid extraction using aqueous solutions of unsubstituted α-cyclodextrin (αCD), βCD and seven kinds of substituted CDs. Separation factor for benzene to cyclohexane was evaluated from the extraction of an equimolar mixture of benzene and cyclohexane. Hydroxypropyl-αCD showed the highest selectivity followed by 2,6-di- O-methyl-αCD, hydroxyethyl-βCD, hydroxypropyl-βCD and 2,6-di- O-methyl-βCD. Then, separation selectivity for benzene was compared among the nine kinds of CDs carrying out the extraction from an equimolar mixture of 3-methylpentane, n-hexane, benzene and cyclohexane. Finally, the extraction method was applied to reformate using the aqueous solutions of hydroxypropyl-αCD and hydroxypropyl-βCD. The results suggest that this method is effective for reducing the benzene content in reformate.
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.
