Assume that you have an incoming stream that contains 106 kg of wet gas (74.2 wt% methane, 15.6 wt% ethane, 5.5 wt% propane and the rest butane). The incoming stream is sent it to a separator (S1). Three streams leave the separator. Stream 2 is the top stream and contains only methane and ethane. Stream 2 contains 98% of the methane fed to the separator. Stream 3 is the middle stream and contains no butane. For every kg of methane in stream 3, there are 2.5 kg of ethane and 1.5 kg of propane. Stream 4 is the lower stream and contains only ethane, butane and propane. The mass flowrate of stream 4 is 10% of the incoming mass flowrate. Stream 4 is then sent to another separator (S2). Stream 5 leaves the top of S2 and contains 80% of the ethane and 50% of the propane entering S2 along with butane. Stream 6 leaves the bottom of S2 and contains all three components. The mass fraction of butane in stream 6 is 0.60. a. Draw and Label the diagram
b. Write equation(s) for the following statements:
1. For every kg of methane in stream 3, there are 2.5 kg of ethane and 1.5 kg of propane.
2. Stream 2 is the top stream and contains 98% of the methane fed to the separator.
3. The mass flowrate of stream 4 is 10% of the incoming mass flowrate.

c. Calculate the mass fraction of ethane in stream 2.
d. Calculate the mass of propane in stream 4.
e. Calculate the mass of butane in stream 5