Toluene Oxidation: CO<sub>2</sub> vs Benzaldehyde: Current Status and Future Perspectives
Hugo M. Lapa, Luísa M. D. R. S. Martins
Abstract
High Resolution Image Download MS PowerPoint Slide Toluene is a common and significant volatile organic compound (VOC). Although it finds extensive application in various industrial processes (chemical manufacturing, paint and adhesive production, and as a solvent), it creates a huge environmental impact when emitted freely into the atmosphere. Two solutions were found to mitigate the emission of this pollutant: the total oxidation to CO 2 and H 2 O and the selective oxidation into benzaldehyde. This review discusses the two main alternatives for tackling this problem: converting the toluene into carbon dioxide by total oxidation or into benzaldehyde by selective oxidation. It presents new catalytic advances, new trends, and the advantages and disadvantages of both methods.