A Study on Friedel-Crafts Alkylation in Ambient Temperature Ionic Liquids

• Published in: Petroleum science and technology Vol. 24; no. 2; pp. 129 - 135
• Main Authors: Zhao, Zhongkui, Li, Zongshi, Qiao, Weihong, Wang, Guiru, Cheng, Lübo
• Format: Journal Article
• Language: English
• Published: Colchester Taylor & Francis Group 01.05.2006; Taylor & Francis
• Subjects: Alkylation; Aluminum chlorides; Ambient temperature; Applied sciences; Conversion; Crude oil, natural gas and petroleum products; Cyclohexane; Energy; Exact sciences and technology; Fuels; ionic liquid; Ionic liquids; naphthalene; Olefins; Optimization; Petroleum products, gas and fuels. Motor fuels, lubricants and asphalts; Processing of crude oil and oils from shales and tar sands. Processes. Equipment. Refinery and treatment units; α-methylnaphthalene; β-methylnaphthalene; ionic liquid; α-methylnaphthalene; Amine; Naphthalene; Olefin; Cyclohexane; Alcohol; Alkylation; 3 -methylnaphthalene
• ISSN: 1091-6466; 1532-2459
• DOI: 10.1081/LFT-200044441

Alkylation of naphthalene, α-methylnaphthalene, and β-methylnaphthalene with different alkylating agents, such as olefins, bromoalkane, and fatty alcohol, in novel environmentally friendly ambient temperature ionic liquid, ethyl-containing amine chloroaluminate (anhydrous aluminum chloride mole fraction, X = 0.67-0.75), has been investigated. On the basis of optimal reaction conditions, high conversion of alkylating agent and excellent selectivity for monoalkylated product were obtained. The products and unreacted reactants were easily isolated by extraction with cyclohexane.