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Several solid acid catalysts are prepared and compared in upgrading bio-oil using ethanol and acetic acid as raw materials through the catalytic esterification reaction model. The SO 4 2-/SiO 2 -TiO 2 catalyst in the optimum experimental conditions achieved higher catalytic activity. The bio-oil was
## Abstract In recent years, several soybean varieties have been developed with healthier or more functional fatty acid lipid profile. The first of its kind was the high oleic soybean oil developed by βDuPontβ using biotechnology enhanced breeding technology. With the increased understanding of the
The technological and economic aspects of the petroleum refinery power plant efficiency are analysed. In the technological process of coupled products, making calculations, i.e. determining the cost prices presents a challenge for experts of interdisciplinary teams dealing with the calculations of c