4. A kiln is used to calcine a limestone analyzing 52% CACO3 , 30% MgCO3 , 5% Al,O3, 4% inerts, 6% SiO, and 3% moisture. Coal is burned to supply the heat of calcination. Analysis of coal shows 13.8% VCM, 8.6% ash, 3% moisture, negligible N and S with a calorific value of 32.95 MJ/kg. Analysis of the kiln gas shows 18.57% CO2, 1% CO, 0.22% H2 , 8.39% O2 and 71.82% N2 . Calculate: a) Kg limestone/kg coal ( 7.5) b) Lime-Fuel ratio (4.4)

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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.