Membrane-integrated oxy-fuel combustion of coal: Process design and simulation

作者：Chen Wei; van der Ham Louis; Nijmeijer Arian; Winnubst Louis^*

来源：Journal of Membrane Science, 2015, 492: 461-470.

DOI：10.1016/j.memsci.2015.05.062

• Oxy-fuel combustion
• Oxygen transport membranes
• Process simulation
• CO2 capture
• MIEC

A membrane-integrated oxy-fuel combustion process is designed and simulated in UniSim Design (R). The results of the simulation indicate that a net efficiency of 31.8% is obtained for a coal-fired power plant of 182 MWth (assuming only carbon in the coal), including the compression of CO2 to 100 bar. The specific electrical energy demand for CO2 capture in this process, including oxygen production and CO2 compression is similar to 0.58 MJ/kg. The required membrane area for air separation is similar to 80,000 m(2) based on Ta-doped SECo0.8Fe0.2O3-delta (SCF) membranes. By using the same protocol, the net efficiency is lower for an oxy-fuel combustion process using oxygen from cryogenic distillation of air (29.6%).

• 出版日期2015-10-15