Recent developments on sulphur specifications in middle distillate fuels are exerting a higher demand on refinery hydrogen systems. Previous methodologies on hydrogen network optimisation have been developed mainly based on the assumption of fixed hydroprocessing performance with constant...

To reduce emissions in the process industry, much emphasis has been put on making step changes in emission reduction, by developing new process technology and making renewable energy more affordable. However, the energy saving potential of existing systems cannot be simply ignored. In recent...