Optimization-based approach for design and integration of carbon dioxide separation processes using membrane technology

The purpose of this paper is to examine carbon dioxide (CO2) separation process using membrane technologies. In achieving this goal, we develop an optimization model to design and integrate the CO2 separation using multi-stage membrane technologies by maximizing the total profit calculated with the total capital and operating costs, and the expected revenue from the CH4 selling. Using the proposed model, we are able to determine the optimal design and operation strategies of the individual membrane and compressor to meet the design specification (i.e., purity and recovery rate) in the scenarios of different CO2 market prices.