Modeling and Optimization of Natural Gas Processing and Production Networks

In this chapter we present a framework for design, synthesis, analysis, and planning of natural gas processing and production networks. The overall framework involves (1) simulation of different flowsheets, (2) mathematical formulation and optimization, and (3) sustainability assessment of the natural gas network to assess the different routes for natural gas utilization. This helps the decision maker to evaluate and optimally select the production pathways and utilization options to maximize the value of natural gas resources. The network considers conversion of natural gas to LNG, condensates, LPG, gasoline, diesel, wax, and methanol as main products. Sensitivity analysis is performed to determine the effect of different operating parameters on product yields obtained from flowsheet simulations. Linear programming (LP) and mixed integer linear programming (MILP) models are presented in the framework of sequential simulation-optimization–based approach, including sustainability assessment for analyzing economic, environmental, and societal aspects of the synthesized processing and production networks.