use 100g/min as the mass flow rate of fhe recovered/product crystals

Problem 1. Production of amino acid crystals (50 points) L-Serine is an amino acid that is often provided when intravenous feeding solutions are used to maintain the health of a patient. It has a molecular weight of 105, is produced by fermentation, and recovered and purified by crystallization at 9C. Yield is enhanced by adding pure ethanol to the system, thereby reducing serine solubility in aqueous solutions. An aqueous serine solution (the feed) containing 25 mass% serine and 75 mass % water is added along with the pure ethanol to a crystallizer that is allowed to equilibrate at 9C. The resulting crystals are recovered by filtration; liquid passing through the filter is known as filtrate, and the recovered crystals (the product) may be assumed in this problem to be free of adhering filtrate. The product crystals contain a mole of water for every mole of serine and are known as a monolndrate. The filtrate is determined to be 3.2 mass% serine, 48.4 mass% water, and 48.4 mass% ethanol, a. Draw and label a flowchart for the laboratory run of the process. (Hint: You may consider the crystallizer and filter as one process unit. There are two inputs and two outputs.) b. Write all the possible Material Balance equations applicable to the system in (a). c. Carry out a degree-of-freedom analysis for the system in (a), d. Determine the ratio of mass of pure ethanol added per mass of feed for the system in (a). c. The laboratory process is to be commercialized to produce 1,250 kg/h of product crystals. What is the scaling factor? f. For (e), determine the required rates of aqueous serine solution and ethanol, both in kg/h