Modeling and simulation of membrane-assisted separation of carbon dioxide and hydrogen from syngas

Syngas is a building block mainly utilized to produce petrochemical commodities such as methanol, dimethyl ether. However, bio-syngas, which is obtained from biomass sources, might be utilized to produce synthetic natural gas. Synthesis gas from integrated gasification combined cycle power station contains almost 40mol% carbon dioxide and 60mol% hydrogen at a pressure range from 25 to 50bars. Removal of carbon dioxide is significant, and the remaining hydrogen is suitable in fuel cells and gas turbines. The membrane separation mechanism separates species through the membrane pores based on the driving force and pore size. Membrane permeability and selectivity are the main criteria required to produce a successful membrane. The thin membrane is desired to reduce the membrane resistance to gas permeation. Artificial natural gas is used for many purposes; among them is the production of methanol and ammonia. Syngas is the main component to make many different products. Separation of carbon dioxide from syngas using membrane is a challenging process. The chapter discusses modeling and simulation of membrane-assisted separation of carbon dioxide and hydrogen from syngas.