– Mass and Energy Balance – Energy Intensity – Emission Intensity

Hi, I was wondering if I could please get some help with these mass and energy balance questions? Based on the attached information find the following: • Conduct a mass and energy balance around the Calciner to determine the required flowrate of input methane gas and the CO2 emissions for the Calciner. • Determine the energy intensity of the Calciner (r (expressed as GJ energy consumed/tonne alumina produced) • Determine the CO2 emissions intensity of the Calciner units (expressed as tonne CO2 emitted/ tonne of alumina produced) I have attached what I have so far but I’m a little confused. Thank you!!