The reactor of a process consumes 1 kg/s of methane, which must be fed at 80 C and 6 bar. The methane source is at 200 C and 1.2 bar. The pressures are absolute. Determine the power required for gas compression, the total cooling heat load required and the heat transfer area of the CIs for the following three alternatives. For to cool the gas, it has water from the cooling tower that is at 30 C and must come out of CIs at not less than 40 C and not more than 45 C.

a) By compressing in one step and cooling the gas at the compressor outlet.

b) By cooling to 40 C and then repeating a)

c) By repeating b) but with 2 compressors

For a)

What is the power of the compressor in kW?

What is the area of heat exchange?

And the heat removed from the heat exchanger (kW)?

For b)

What is the power of the compressor in kW?

What is the area of heat exchange in heat exchanger 1?

And the heat removed from the heat exchanger 1 in (kW)?

What is the area of heat exchange in heat exchanger 2?

And the heat removed from the heat exchanger 2 in (kW)?

For c)

What is the power in the first step in kW?

What is the area of heat exchange in heat exchanger 1?

The heat removed from the heat exchanger 1 in (kW)?

What is the power in the second step in kW?

What is the area of heat exchange in heat exchanger 2?

The heat removed from the heat exchanger 2 in (kW)?

What is the area of heat exchange in heat exchanger 3?

The heat removed from the heat exchanger 3 in (kW)?