Thermodynamic analysis, energy integration and flowsheet improvement of a methanol absorption acid gas removal process
This paper analyses the thermodynamic performance and proposes different energy integration schemes for a methanol absorption based acid gas removal process, namely the Rectisol® process specifically designed for the selective removal of H2S and CO2 from coal derived syngas. The study consists of three major tasks: 1. Calibrating the PC-SAFT equation of state for MEOH-CO2-H2S-H2-CO mixtures at conditions relevant for the Rectisol® process. 2. Evaluating the thermodynamic performances and optimising the energy integration of the "Reference" scheme by means of "heat-cascade" based optimisation methodology. 3. Identifying attractive process modifications on the basis of Process Integration principles.
Keywords: Engineering controlled terms ; Carbon dioxide ; Desulfurization ; Equations of state ; Methanol ; Optimization ; Thermoanalysis Coal-derived syngas ; Energy integration ; Methanol absorption ; Process integration ; Process modifications ; Selective removal ; Thermo dynamic analysis ; Thermodynamic performance Engineering main heading ; Gas absorption
Record created on 2016-07-26, modified on 2016-08-25