Minimizing CO2 emissions for syngas production units using Dry Reforming of Methane Chapter uri icon

abstract

  • © 2017 Elsevier B.V. Carbon Capture and Utilization (CCU) is gaining lot of interest in academia and industry due to the perceived environmental benefits of using CO2as a feed. Dry Reforming of Methane (DRM) is one such process which uses CO2and natural gas to produce a valuable intermediate, syngas (mixture of CO and H2). However, to compare DRM with existing reforming technologies (Steam Methane Reforming - SMR and Partial Oxidation of Methane - POx) on an environmental scale, it is important to account for all sources of emissions in each process pathway. This paper discusses an optimization-based approach in LINGO to compare the carbon footprint of different syngas production networks. Reformer outputs have been estimated based on an earlier developed Gibbs energy minimization equilibrium model. The results shows that incorporating a DRM unit will have net CO2fixation (net reduction in CO2) while producing syngas of low syngas ratios (H2/CO) of 1 and below. However, above syngas ratio of 2, the optimization model does not select DRM in the syngas production network which minimizes overall CO2emissions.

author list (cited authors)

  • Afzal, .., Senguptab, D., El-Halwagi, M. M., & Elbashir, N.

Book Title

  • 27th European Symposium on Computer Aided Process Engineering

publication date

  • January 1, 2017 11:11 AM