process simulation of biodiesel production from soybean oil with aspen hysys: a comparative study of two different processes

Biodiesel is one of the most promising green fuels at present which can be easily obtained from various vegetable oils/animal fats and even waste cooking oils# in recent years, researchers have investigated a lot about biodiesel production processes# in order to produce biodiesel in an industrial scale and optimize the process, it’s needed firstly to simulate the production process to obtain information consistent with real data# in this respect, the vegetable oil fatty acid components (as a feedstock) were defined in detail# afterward, two different processes suggested in the literature for biodiesel production, were compared in terms of resource consumption and biodiesel yield#