Synthesis of bio-additives: Acetylation of glycerol over zirconia-based solid acid catalysts

Autor:	Gangadhara Raju, Putla Sudarsanam, Benjaram M. Reddy, Padigapati S. Reddy
Rok vydání:	2010
Předmět:	Chemistry Process Chemistry and Technology General Chemistry Catalysis Acetic acid chemistry.chemical_compound Acetylation Glycerol Organic chemistry Cubic zirconia Selectivity Triacetin BET theory Nuclear chemistry
Zdroj:	Catalysis Communications. 11:1224-1228
ISSN:	1566-7367
DOI:	10.1016/j.catcom.2010.07.006
Popis:	Acetylation of glycerol with acetic acid was investigated over ZrO2, TiO2–ZrO2, WOx/TiO2–ZrO2 and MoOx/TiO2–ZrO2 solid acid catalysts to synthesize monoacetin, diacetin and triacetin having interesting applications as bio-additives for petroleum fuels. The prepared catalysts were characterized by means of XRD, BET surface area, ammonia-TPD and FT-Raman techniques. The effect of various parameters such as reaction temperature, molar ratio of acetic acid to glycerol, catalyst wt.% and time-on-stream were studied to optimize the reaction conditions. Among various catalysts investigated, the MoOx/TiO2–ZrO2 combination exhibited highest conversion (~ 100%) with best product selectivity, and a high time-on-stream stability.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::65f127d229ec9e705bb92a904bd2e45c https://doi.org/10.1016/j.catcom.2010.07.006 Zobrazit plný text záznamu Full Text from ScienceDirect