Substance above its critical temperature and critical pressure is defined as SCF. Critical points represent the maximum temperature and pressure at which vapor and liquid co-exist. This is known since 1822 which Baron Cogniard de Latour demonstrated the existence of the critical point using an equipment. There are few features, which make SCF different from usual fluids. It moves like a gas but dissolves things like a liquid. High penetrating capability with almost no surface tension makes it miscible at highest extent with respect to conventional fluids. The SCF technology is used in food and agriculture, petrochemical, pharmaceutical and environmental sectors. The applications are wide. Decaffeination of coffee beans was the first successful technological application of super critical carbon dioxide.
No comments:
Post a Comment