Methanol needs to be fed to a reactor at 100 degree C and 1

Methanol needs to be fed to a reactor at 100 degree C and 1 atm at a rate of 3 [kg/s]. Liquid methanol is available at the ambient conditions of 25 degree C and 1 atm. Saturated steam at 5 bar and a heat exchanger win be used to bring methanol from ambient conditions to the reactor conditions. The steam will condense isobarically in the exchanger and leave as saturated liquid. Based on the information above and the data below. Answer or determine the following: What is the state of methanol streams at ambient and reactor conditions (vapor or liquid)? Specific enthalpy change of methanol in [kJ/kg]. Heat exchanged between the steam and the methanol in [kW]. The mass flow rate of steam required, in [kg/s]? Data from appendix B: Heat Capacities of Methanol: C_p = a + bT. With C_p in [kJ/mol-K] and T in [degree C].

Solution

From the above given data

state of the stream= vapour

change in enthalpy= 45kj/kg

heat exchanged = 56kw

mass flow rate =4.9kg/sec