Journal ArticleDOI
Butyric acid esterification kinetics over Amberlyst solid acid catalysts: the effect of alcohol carbon chain length.
TLDR
The liquid phase esterification of butyric acid with a series of linear and branched alcohols is examined and the decrease in turnover frequency (TOF) with increasing carbon chain length of the alcohol is described in terms of steric hindrance, alcohol polarity, and hydroxyl group concentration.About:
This article is published in Bioresource Technology.The article was published on 2013-02-01. It has received 52 citations till now. The article focuses on the topics: Alcohol & Catalysis.read more
Citations
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Journal ArticleDOI
Activity of solid acid catalysts for biodiesel production: A critical review
TL;DR: In this paper, the authors reviewed current literature on the activities and advantages of solid acid catalysts used in biodiesel production and suggested a way forward from the traditional trial-and-error method to a rational means of determining catalytic activities.
Journal ArticleDOI
Phenomena Affecting Catalytic Reactions at Solid–Liquid Interfaces
Carsten Sievers,Yu Noda,Long Qi,Elise M. Albuquerque,Elise M. Albuquerque,Robert M. Rioux,Susannah L. Scott +6 more
TL;DR: In this paper, the authors discuss liquid phase reactions over heterogeneous catalysts and provide illustrati cation of these phenomena and illustrate the effect of liquid phase reactivity on liquid phase reaction rates.
Journal ArticleDOI
Catalytic upgrading of bio-oils by esterification.
TL;DR: In this article, a mini-review describes recent advances in the design and application of solid acid catalysts for the energy efficient upgrading of pyrolysis biofuels, which can be used for both direct thermochemical processing and co-production of bio-oils and bio-gas.
Journal ArticleDOI
Biodiesel production using solid acid catalysts based on metal oxides.
TL;DR: In this article, a review of recent developments in various solid acid catalysts based on different metal oxides, such as zirconia, zinc, titanium, iron, tungsten, and magnetic materials, where the catalysts are optimized for various reaction parameters, including the amount of catalyst, molar ratio of oil to alcohol, reaction time, and temperature.
Journal ArticleDOI
A comparative study of solid carbon acid catalysts for the esterification of free fatty acids for biodiesel production. Evidence for the leaching of colloidal carbon.
Chinmay A. Deshmane,Marcus W. Wright,Abdessadek Lachgar,Matthew L. Rohlfing,Zhening Liu,James Le,Brian E. Hanson +6 more
TL;DR: The results of TEM and catalyst poisoning experiments on the leachate solutions associate the catalytic activity of these solutions with carbon colloids, which mechanism for leaching active sites from sulfonated carbons is previously unrecognized.
References
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Book
Steric effects in organic chemistry
TL;DR: In this article, the authors propose that having more aspects to know and understand will lead to becoming a more precious person, and becoming more precious can be situated with the presentation of how your knowledge much.
Journal ArticleDOI
Design of multifunctionalized mesoporous silicas for esterification of fatty acid
Isa K. Mbaraka,Brent H. Shanks +1 more
TL;DR: In this article, an organic-inorganic hybrid acid catalyst was used for the esterification of fatty acid with methanol to produce methyl esters as a pretreatment step in the production of biodiesel.
Journal ArticleDOI
A comparison of the esterification of acetic acid with methanol using heterogeneous versus homogeneous acid catalysis
TL;DR: In this paper, the kinetics of acetic acid esterification with methanol were investigated using a commercial Nafion/silica nanocomposite catalyst (SAC-13) and H 2 SO 4, respectively.
Journal ArticleDOI
Esterification and transesterification using modified-zirconia catalysts
TL;DR: In this article, modified zirconias (WZ, SZ, and TiZ) have been extensively compared under the same reaction conditions as catalysts for both the transesterification of triglycerides (TGs) and the esterification of carboxylic acids (free fatty acids, FFAs) with ethanol.
Journal ArticleDOI
Effect of carbon chain length on esterification of carboxylic acids with methanol using acid catalysis
TL;DR: In this article, the impact of carboxylic acid chain length on the kinetics of liquid-phase acid-catalyzed esterification was investigated, and the reaction rate decreased as the number of carbons in the linear alkyl chain increased for both H 2 SO 4 and SAC-13.
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