Potassium titanate for the production of biodiesel. (15th February 2016)

• Record Type: Journal Article
• Authors: Salinas, D.; Guerrero, S.; Cross, A.; Araya, P.; Wolf, E.E.
• Is Part Of: Fuel. Volume 166(2016)
• Page Start: 237
• Page End: 244
• Publication Date: 2016-02-15
• Subjects: TiO2 -- Potassium oxide -- Potassium titanate -- Transesterification -- Canola oil; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2015.10.127
• Languages: English
• ISSNs: 0016-2361

Abstract

Graphical abstract: Highlights: High calcination temperature resulted in of highly active titanates. Potassium oxide changed to potassium titanate when calcining at high temperature. Calcining at 700–800 °C led to total conversion to methyl esters after 2 h. Abstract: The temperature effect and basic structural features of a potassium catalyst supported on hydrothermal TiO2 were studied. The calcination of a 20%K/TiHT catalyst at temperatures higher than 600 °C, led to a change of the crystalline phase of potassium oxide into a potassium titanate. Despite the low surface area of the catalyst calcined at high temperature total conversion to methyl esters was achieved at 2 h of reaction. These results are explained by the presence of highly strong basic sites associated with the potassium titanate structure formed on these catalysts.