GENERATION OF ALTERNATE FLOWSHEETS BY HIERARCHICAL DECOMPOSITION Q Level 1: Choice of process type Q Level 2: Input-Output Structure Level 3: Recycle structure Level 4: Separation System synthesis Q Level 5: Heat and Power Network Synthesis Levels 2 through 5 will depend upon the choice of process type (Based on J.M. Douglas, Conceptual Design of Chemical Processes, McGraw-Hill. 1988 1/31/99 Design Methdology -Intro 51/31/99 Design Methdology - Intro 5 GENERATION OF ALTERNATE FLOWSHEETS BY HIERARCHICAL DECOMPOSITION uLevel 1: Choice of process type uLevel 2: Input-Output Structure uLevel 3: Recycle Structure uLevel 4: Separation System Synthesis uLevel 5: Heat and Power Network Synthesis Levels 2 through 5 will depend upon the choice of process type. (Based on J.M. Douglas, Conceptual Design of Chemical Processes, McGraw-Hill, 1988)