A batch of saturated aqueous solution of barium chloride is prepared at 90 C and sent to a batch cooling crystallizer operating at 10 °C. The products of the crystallization process are dihydrate crystals. 1000 kg of water is used for the preparation of the saturated solution of barium chloride at 90 C. The solubility data of barium chloride in water is given in Table Q3. (c) Table Q3: Solubility of Barium Chloride in Water Compound Solubility, kg anhydrous compound/100kg water 20 °C 40 °C 60 °C 80 °C 100 °C Barium chloride, | 31.6 BaCl, 35.7 40.7 46.4 52.4 58.6 Given: MW of anhydrous BaCl2 = 208.23 g/mol; MW of water =18.016 g/mol; MW of BaCl2 2H2O=244.26 g/mol. (i) Calculate the weight of anhydrous barium chloride required for dissolution to prepare the saturated solution at 90 C. (ii) Calculate the weight of the crystals produced.

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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.