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Biodiesel production from the esterification of fatty acid (stearic acid) with ethanol catalyzed by PA/NaY (PA=organophosphonic acid, NaY=NaY molecular sieve) was investigated, and the effects of PA loading, catalyst amount, molar ratio of ethanol to acid, reaction time and temperature on the esterification reaction were examined. The optimum values for maximum esterification percentage can be obtained...
This paper describes the structure of a automatic machine for opening apricot-core, including feed tray, guiding slot 1, clamping and transportation belts, cutting mechanism, guiding slot 2 and collection holder. And this paper focus mainly on the clamping and transportation belts's design and optimization. Based on the past physics character data of almond and the structure of opening almond machine,...
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