Rigorous algorithmic targeting methods for hydrogen networks—Part II: Systems with one hydrogen purification unit

A new systematic targeting methodology has been developed to minimize the use of hydrogen utility in hydrogen networks that also feature purification of hydrogen. Sufficient and necessary conditions of optimality have been proved to extend the pinch based approach to this nonlinear problem. The proposed targeting procedure involves two steps: identification of purifier location and calculation of minimum hydrogen consumption. Examples from the literature are discussed.