This chapter describes the results from the formulation of the superstructure by integrating bioprocesses into the base case of existing chemical plants in the lower Mississippi River corridor. Carbon dioxide produced from the integrated biochemical and chemical complex was used for the production of algae oil and for the production of chemicals from carbon dioxide. The base case of existing chemical plants is shown in Figure 6.1. The superstructure is shown in Figure 6.2. The superstructure is a mixed-integer nonlinear programming problem (MINLP), solved with global solvers in GAMS. Details on MINLP problem formulation, superstructure de‚nition, and mathematical representation are given in Appendix B. Logical constraints were included for the selection of competing processes in the model. Lower and upper bounds on the §ow rates of the production capacities of the plants in the complex were speci‚ed.