Biodiesel production process by homogeneous/heterogeneous catalytic system using an acid–base catalyst

Autor:	Barbara Onida, Donato Cocina, Angelo Maria Giuffrè, Anastasia Macario, Girolamo Giordano, Antonio Tagarelli
Rok vydání:	2010
Předmět:	Biodiesel chemistry.chemical_compound Adsorption chemistry Process Chemistry and Technology Catalyst support Biodiesel production Industrial catalysts Inorganic chemistry Transesterification Methanol Catalysis
Zdroj:	Applied Catalysis A: General. 378:160-168
ISSN:	0926-860X
Popis:	The transesterification of triglycerides contained in waste oilseed fruits with methanol has been studied in heterogeneous/homogeneous systems using acid and base catalysts. The acid catalysts (strong acid catalysts: USY, BEA, FAU-X, and weak acid catalysts: MCM-41 and ITQ-6 with Si/Al = ∞) were prepared by hydrothermal synthesis procedures. In order to obtain acid–base catalysts, potassium was loaded on different materials by ionic exchange (obtaining K-MCM-41, K-ITQ-6,). XRD, ICP-MS, IR after CO and CO2 adsorption, thermal analyses and N2 adsorption/desorption techniques have been used for catalysts characterization. The highest triglycerides conversion and biodiesel yield values were achieved by K-ITQ-6 catalysts, after 24 h of reaction at 180 °C. Deactivation of this catalyst occurs for potassium leaching, but its regeneration and reuse are feasible and easy to perform. A possible continuous biodiesel production process has been proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90d804f0574a4e8c69c3e77eb9c85603 https://doi.org/10.1016/j.apcata.2010.02.016 Zobrazit plný text záznamu Full Text from ScienceDirect