Abstract
Abstract A novel solid acid was prepared from petroleum coke by KOH chemical activation and concentrated H 2 SO 4 sulfonation. The solid acid was characterized by XRD, FT-IR and solid-state NMR. The characterization results show that the chemical activation and sulfonation lead to three functional Bronsted acid sites: –OH, –COOH and –SO 3 H on the solid acid. The probe molecules experimental reveal that the acid strength of the solid acid is stronger than that of SO 4 2− /ZrO 2 , but slightly weaker than that of 100% H 2 SO 4 . The catalytic performance was evaluated by the esterification of oleic acid with methanol. The results indicate that this solid acid catalyst is very active, corresponding to high conversion (72%) of esterification reaction. In addition, the spent solid acid can be recovered by simple regeneration process.
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.
