Brazilian Journal of Chemical Engineering
On-line version ISSN 0104-6632
SOARES, V. B. and COELHO, G. L. V.. Safety study of an experimental apparatus for extraction with supercritical CO2. Braz. J. Chem. Eng. [online]. 2012, vol.29, n.3, pp. 677-682. ISSN 0104-6632. http://dx.doi.org/10.1590/S0104-66322012000300023.
During the process of supercritical CO2 extraction it is necessary to use high pressures in the procedure. The explosion of a pressure vessel can be harmful to people and cause serious damage to the environment. The aim of this study is to investigate the probability of death and injury in a laboratory unit for supercritical fluid extraction in the case of an explosion of the extractor vessel. The procedure is explained via a case study involving fatty acid extraction from vegetable oils with carbon dioxide above its supercritical conditions and under optimum operating conditions. According to the results, more importance should be given to the use of a protective headset because the probability of eardrum injury is superior to the probability of death from lung injury.
Keywords : Safety Analysis; Pressure Vessel; Probit method; BLEVE.