Ionic liquids: Green catalysts for alkene-isoalkane alkylation

摘要

Alkylation of isoalkane and alkene owns a note-worthy position among octane improving chemical conversions. Widely adopted catalysts (H2SO4 and HF) for alkylation at industrial level suffer severe drawbacks associated with environmental concerns, recycling, reactor corrosion, etc. Solid acid catalysts are good, but represent deactivation issues. Compared to this, ionic liquids are considered green catalysts for obtaining alkylate as an efficient blending component for clean oil. This review article presents various ionic liquids effective for alkylation reaction. Their structures, properties, and catalytic activities are briefed in this analysis. Impact of additives on various ionic liquids and their efficiencies has also been discussed. The article will help the researchers to gain a deep insight and understanding about the reaction conditions suitable for alkylation and its chemistry in detail. (C) 2019 Elsevier B.V. All rights reserved.