Question $2(24$ Marks$)$ Heat Integration

The following three process streams are being considered for heat integration:

The following Utilities are available within the facility in question:

Assuming a minimum approach temperature of $10,$ perform the following:

$[4]($a$)$ Determine the utility type and mass flow rate $(k\frac{g}{s})$ needed for each

stream if no heat integration were performed.

$[10]($b$)$ Construct a Temperature Interval Diagram for this system, identifying the

pinch point. Determine utility requirements $($in $k\frac{J}{s})$ above and below the

pinch.

$[10]($c$)$ Sketch a diagram illustrating a Heat Exchange Network that could be used

to integrate the heat in this system, including additional exchangers for

utilities. Specify inlet and outlet temperatures, and utility flow rates in $k\frac{g}{s}$

where applicable.