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Question $1$

The syuthesis of acetaldehyde $(C{H}_3$CHO $)$ involves the catalytic delyydration of ethanol, which es follows:

$C_2{H}_O^{OH}C{H}_3$CHO$+H_3$

The process involves the blending of fresh feed, which is pure ethmol $(CHH(OH),$ with a rec$)$ de stream consisting of $95$ mol $\%$ ethanol and $5\%$ acetaldelyde. The combined mikture is then beated and yaporized before entering the reactor at a tempeature of $280C.$ The grecous products leaving the reactor are cooled to $-40$ Tlo conderse the acetaldelyde and unrected ethanol. The resulting gas is then directed to a scrubber to eliminte any remiining organic compounds, witile also recovering hydrogea as a by$-$product. The condensed liquid from the condesser, conhining $45$mol$96$ ethanol, is further processed in a distillation columo. This column produces a distilate that coatains $97$ mol $\%6$ acetaldelyde, while the bottons product constitules be recycled strem that is blended with fresh feed for the subsequeat steps of the process.

$($a$)$ Illustrate and label a Block Flow Diggram $($BFD$)$ stream for the catalytic reaction of acetaldehyde.

$(10$ Marls$)$

$($b$)$ Bused on the above BFD and using coned ISA symbology, prepure a Process Flow Diagram $($PFD$)$ for this complete process.