472997 Cogeneration of Electricity, Hydrogen and Carbon-Containing Chemicals from Natural Gas—Coalsupplies
and formic acid are coproduced from natural gas and coal. The principal technologies employed
in the process network include combustion, steam methane reforming (SMR), pressure swing
adsorption, and formic acid production from CO2 and H2. The concept of thermodynamic self-
sufficiency is employed to access a feasible envelope for the considered process.
Further thermodynamic analysis will be carried out, so that we can find operating limits for the
proposed process. Here I employ UniSim to describe flowsheet and simulate the process. Heat
and power integration studies show this flowsheet to be energetically self-sufficient through the
use of heat engine and heat pump subnetworks.