5 years ago

Syngas Production by Biogas Reforming in a Redox-Stable and CO2-Tolerant Oxygen Transporting Membrane Reactor

Syngas Production by Biogas Reforming in a Redox-Stable and CO2-Tolerant Oxygen Transporting Membrane Reactor
Wilhelm A. Meulenberg, Fangyi Liang, Heqing Jiang, Guanghu He, Hangyue Zhou, Tianmiao Hu, Stefan Baumann
A novel membrane reactor consisting of Ce0.9Gd0.1O2−δ–Gd0.1Sr0.9Fe0.9Ti0.1O3−δ (CGO–GSFT) is used to combine air separation with biogas reforming in a single unit. The composite material CGO–GSFT was synthesized via a combined EDTA–citrate complexing sol–gel method. Characterization with XRD, SEM, and EDXS revealed that the composite material was a two-phase fluorite–perovskite system with good compatibility and a homogeneous percolative network. XRD demonstrated that the CGO–GSFT membrane shows a good phase stability not only in CO2 but also in simulated biogas atmosphere. Under the gradient of air/simulated biogas, the oxygen permeability and methane conversion was increased by either raising the operating temperature or increasing the CO2 concentration. At 890 °C and a CH4/CO2 molar ratio of 1.5, an oxygen permeation flux of 1.1 cm3 min–1 cm–2 through the CGO–GSFT membrane was achieved while methane conversion reached 83%, and remained stable for nearly 150 h before the measurement was intentionally stopped.

Publisher URL: http://dx.doi.org/10.1021/acs.iecr.7b01422

DOI: 10.1021/acs.iecr.7b01422

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.