Gas-phase dehydration of glycerol over thermally-stable SAPO-40 catalyst

• Autor(a) principal: Lourenço, J. P.
• Data de Publicação: 2015
• Outros Autores: Fernandes, A., Bértolo, R. A., Ribeiro, M. F.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.1/5712
• topic: Glycerol; Sustainable chemistry; Dehydration; SAPO-40; Acrolein

SAPO-40 was used as catalyst for the gas-phase dehydration of glycerol towards acrolein. At 350 ºC the catalyst attained full conversion of glycerol with a negligible deactivation in the first 48 h, a glycerol conversion above 50 % after 120 h on stream and a nearly constant selectivity to acrolein above 70%. This catalyst proved to be highly resistant under the experimental conditions used and can be regenerated without loss of activity or significant structural damage. The comparison of SAPO-40 with SAPO-34 and SAPO-11 illustrates the importance of the porous structure and emphasizes the good catalytic performance of this material.