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Unformatted text preview: desired glucose level in the exit stream is 0.2%. What is the composition of the o-gas and the nal egg product? Problem 2 Citric acid is manufactured in a batch fermentor using Aspergillus niger at 30 C. Over a period of two days, 2500 kg of glucose and 860 kg of oxygen are consumed to produce 1500 kg citric acid, 500 kg biomass and other products, primarily water and CO 2 . Ammonia is used as the nitrogen source. Power input to the system by mechanical agitation of the broth is about 15 kW; approximately 100 kg of water is evaporated over the culture period. Estimate the cooling requirements (kJ). 1...
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