A project to be submitted with the final exam on January $20,2024$

Assigned date: December $21,2023$

SLO: $1$

A gas stream from a process plant that contains acetone as an organic vapor and is delivered to a flare to convert all of the acetone into carbon dioxide and water in order to prevent air pollution. Because acetone is a valuable chemical, we must consider if we could design an acetone recovery system and incorporate it into the process. The waste stream contains $687$ moles of air per hour and $10\mathrm{.}3$ moles of acetone per hour. Follow the steps below to implement a possible design recovery system to complete a task assigned to you by your employer:

Step $1$: Assume we will recover $100$ percent of the acetone. Calculate the economic potential of the project if the acetone price is $$0\mathrm{.}27$ per pound and the plant runs for $8150$ hours per year.

Step $2$: Determine if the process should be batch or continuous.

Step $3$: Which processes are available in the literature for the purpose of recovering vapor from a gas stream?

Step $4$: What solvents are available if absorption is the cheapest option you selected in step three? Which solvent will be utilized, and why?

Step $5$: What is the next unit that will be used to separate the acetone from the solvent?

Step $6$: Draw a qualitative flow chart of the process, including all required equipment such as pumps and heat exchangers, as well as a unit for solvent waste treatment.

Step $7$: Redraw the flow chart indicated in step $6$ with the recycle stream if you decide to recycle the solvent.

Step $8$: What are the benefits and drawbacks of the processes listed in steps $6$ and $7$ with respect to environmental impact and project profitability?