Optimisation of Heterogeneous Catalysed Esterification Reaction for n-Hexyl Acetate Synthesis part 2

Optimisation of Heterogeneous Catalysed Esterification Reaction for
n-Hexyl Acetate Synthesis part 2

Introduction continued

Blagov et al. (2006) explored the catalysed esterification with n-butanol observing the effect on conversion and selectivity of ester from various catalyst brands. Most notably, at higher catalyst loadings, particularly at 10-15%, they
detected the formation of side-products (olefins and ethers). Further studies were commissioned into ascertaining how dependent the acetic acid conversion was upon higher temperatures (Peng
et al., 2009; Patel and Saha, 2007).

The outcome of controlling; the feed molar ratio on iso-amyl alcohol esterification (Teo
et al., 2004) and dilute acetic acid concentration on n-hexyl acetate yield (Patel
et al., 2007) were also observed, it was discovered that higher feed molar ratios of the alcohol and higher acetic acid concentrations produced the ester faster and achieved more complete conversion of acetic acid.

Recycled resins were also assessed for their performance by Patel et al. (2007), this property of the resin being very attractive to industrial esterification. A parameter that would be attractive for commercial purposes is the catalyst species,
in this case, macroporous granules or gelular resin. The two have been findings.

Observation of the agitation speed effect upon the batch vessel system has been recorded.

What has not been by numerous academics (Saha et al., 2007; Cunill
et al., 2000 and Gangadwala et al., 2003) scrutinised so far (with the exception of Patel and Saha, 2007) is the
n-hexyl acetate synthesis reaction in batch vessel configuration and also the performance of single/multiple-use catalyst, which is the focus of this study.

The purpose of this study is to establish the optimal parameters to attain the fastest rise to equilibrium and highest conversion of the acetic acid and furthermore to better understand the reaction/feed parameters that affect this esterification process
in industrial operations.

Continues to part 3

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Posted by Ahmed Tariq on Dec 28 2011. Filed under Sci-Tech. You can follow any responses to this entry through the RSS 2.0. You can leave a response or trackback to this entry