In order to separate pure alcohol from alcohol- water mixtures, it is necessary to add a third component such as benzene for production of pure alcohol as the bottom product. In such an operation, a benzene free with the feed mixture containing 88wt% alcohol and 12wt% water gives an over head product containing 17.5wt% alcohol, 7.9% water and 74.6% benzene. Calculate the mass flow rate of benzene in the feed stream in order to produce 0.981 kg/sec pure alcohol as the bottom product.

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Hazard Analysis and Design in Chemical Engineering

Hazard is the intrinsic property of a material or process which harms the people, buildings, or environment. Health, safety, hazard, risk assessment, loss prevention, and environmental consideration play an important role while designing a chemical processing plant. Hazard is often confused with risk. Risk measures the magnitude of loss and injury of likelihood incidents or the consequence and frequency of incidents.