Limonene ethers from tire pyrolysis oil

Selective etherification of β-citronellene catalyzed by zeolite beta

“…12,13 Stanciulescu et al reported the superior activity of zeolite beta in the etherification of limonene extracted from tyre pyrolysis oil when compared to zeolites like ZSM-5, Y, X and ion exchange resin Amberlyst-15. 14,15 D-Limonene etherification was also reported by Catrinescu et al over acid and ion exchanged clays. 16 Herein we report the first demonstration of a heterogeneous catalytic process for chemoselective etherification of β-citronellene over zeolite beta to produce ethers useful as fragrances and flavor additives as well as developing a solvent for flexographic printing plates.…”

Production of liquid fuels and chemicals from pyrolysis of Bangladeshi bicycle/rickshaw tire wastes

“…Furthermore, the biological activity of limonene, such as its chemopreventive activity against rat mammary cancer, has been recently investigated [7]. In order to enhance the marketability of tire pyrolysis liquids, Stanciulescu and Ikura [14,15] separated limonene-enriched fraction using vacuum distillations and reacted with methanol to produce limonene ethers. Methyl limonene ether is a high value product and has a very pleasant fragrance.…”

Waste Tyres Pyrolysis for Obtaining Limonene

“…Limonene is classified as a cyclic monoterpene [17] with the chemical formula C 10 H 16 and the IUPAC name 1-methyl-4-(1-methylethenyl)-cyclohexene. Its common name derives from lemons: limonene is present in the skins of these fruit and is responsible for their distinctive smell.…”