Processes, Journal Year: 2025, Volume and Issue: 13(5), P. 1455 - 1455
Published: May 9, 2025
In an integrated gasification combined cycle (IGCC), a process produces gas stream from solid fuel, such as coal or biomass. This (syngas synthesis gas) resulting the contains carbon monoxide, molecular hydrogen, and dioxide (other gaseous components may also be present depending on gasified fuel gasifying agent). Separating hydrogen this syngas has advantages. One of methods to separate is selective permeation through palladium-based metal membrane. separation complicated it depends nonlinearly various variables. Thus, desirable develop simplified reduced-order model (ROM) that can rapidly estimate performance under operational conditions, preliminary stage computer-aided engineering (CAE) in chemical processes sustainable industrial operations. To fill gap, we here proposed procedure for one-dimensional steady plug-flow reactor (PFR) use investigate membrane (MR), produced (IGCC). model, (a feed stream) enters one side into retentate zone, while nitrogen sweep opposite neighbor permeate zone. The two zones are separated by permeable palladium surfaces selectively hydrogen. After analyzing profile base case (300 °C uniform temperature, 40 atm absolute pressure, 20 pressure), temperature module, retentate-side permeate-side pressure varied individually their influence investigated. all simulation cases, fixed targets 95% recovery 40% mole-fraction at exit demanded. module length allowed change order satisfy these targets. Other dependent permeation-performance variables investigated include logarithmic mean pressure-square-root difference, apparent permeance, efficiency factor permeation. contributions our study linked fields applications, production, gasification, analytical modeling, numerical analysis. addition separation, linear nonlinear regression models derived obtained results. work gives general insights via membranes (MR). For example, most effective improve performance. Increasing value 120 results proportional gain permeated mass flux, with about 0.05 kg/m2.h gained per 1 increase decreasing bar 0.2 causes flux exponentially 1.15 kg/m2.h. 5.11 United Nations Sustainable Development Goal (SDG) numbers 7, 9, 11, 13.
Language: Английский