Production of C2 hydrocarbons and H2 from CH4 in a proton conducting cell

High Temperature Electrolysis in Alkaline Cells, Solid Proton Conducting Cells, and Solid Oxide Cells

“…CO 2 is electrochemically converted to CO by reaction with the proton (reaction ). Another option for SPCECs is production of hydrogen with simultaneous upgrading of methane to higher hydrocarbons , as illustrated in Figure C.…”

“…The first application of proton conducting electrolytes for steam electrolysis to produce hydrogen was on doped strontium cerate ,− [e.g., yttria-doped, SCY (ytterbium-doped strontium zirconate, SZYb, has also been applied for electrolysis of nitrogen oxide)], doped strontium zirconate ,,, (e.g., yttria-doped, SZY), and doped strontium cerate partial substituted with zirconia (e.g., yttria-doped, SCZY). In the early studies the electrodes consisted of platinum .…”

“…The oxygen electrode is usually perovskites such as strontium-doped lanthanum cobaltite (LSC) (and LSC-BCZYbCo), strontium-doped lanthanum ferrite partially substituted with cobalt (LSCF), , strontium-doped lanthanum manganite partially substituted with chromium (LSCM; LSCM-BCZYZ , ), samaria-doped strontium cobaltite (SSC) (and SSC-BCZY), and the fuel electrode is usually Ni-based ,,,,, (Ni-BCZY, Ni-BCZYZ, ,, or Ni-BCZYbCo) in similarity to SOEC, but recently ceramic fuel electrodes have been demonstrated as well …”

Remediation of Black Sea ecosystem through H2S decomposition in conventional catalytic converters and proton conducting solid oxide membrane reactors for “Green” H2 production

“…The partial oxidation of methane was also studied in a PCMR in the presence of steam (Kyriakou et al, 2012) serving a dual scope: a) to produce hydrogen and C2 hydrocarbons and simultaneously separate H2 from the reacting mixture (with the reactor operating in the pumping mode), and b) to cogenerate C2S and electricity (with the reactor operating in the fuel cell mode). In this process, methane-steam mixtures were fed to the anode, while hydrogen, in the form of H + , was pumped from the anode to the cathode.…”

“…In this process, methane-steam mixtures were fed to the anode, while hydrogen, in the form of H + , was pumped from the anode to the cathode. The presence of steam at the anode not only diminished carbon formation but also considerably increased the production of hydrogen (Kyriakou et al, 2012).…”