Explain the combined stream fed into the evaporator

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Reference no: EM13659809

Forty-five hundred kilograms per hour of a solution that is 33.33% K2CrO4 (1) by mass and the rest water (2) is joined by a recycle stream containing 36.36% K2CrO4 by mass. The combined stream fed into the evaporator. The concentrated stream that leaves the evaporator contains 49.4 % K2CrO4 by mass. This stream is fed into a crystallizer, in which it is cooled, causing crystals of K2CrO4 to precipitate as well as then filtered. The filter cake consists of K2CrO4 crystals as well as a solution that contains 36.36% K2CrO4 by mass. The crystals account for 95% of the total mass of the filter cake. The solution that passes through the filter is sent back to the process as a recycle stream.

Compute

2.1 Determine the amount of water removed in the evaporator.

2.2 Determine the rate of production of crystalline K2CrO4

2.3 Determine the ratio [kg recycle/kg fresh feed]

2.4 Feed rates that the evaporator as well as crystallizer must be designed to handle.

Reference no: EM13659809

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