A hybrid solar-redox scheme for liquid fuel and hydrogen coproduction

Feng He, James A Trainham, Gregory Parsons, John S. Newman, Fanxing Li

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The feasibility of a hybrid solar-redox process, which converts solar energy and methane into separate streams of liquid fuels and hydrogen through the assistance of an oxygen carrier, is investigated via both experiments and simulations. Fixed and fluidized-bed experiments are conducted to evaluate the redox performances of an oxygen carrier composed of iron oxide promoted with a mixed ionic-electronic conductor (MIEC) support. Over 95% conversion in the methane oxidation step and 60% steam to hydrogen conversion in the water-splitting step are observed. Aspen Plus® simulation based on experimental data and a comprehensive set of assumptions estimates the overall process efficiency to be 64.2-65.3% on a higher heating value (HHV) basis. Through the integration of solar energy, methane to fuel conversion efficiency can approach 100%. The proposed process has the potential to produce transportation fuels and hydrogen at high efficiency with reduced carbon footprint. This journal is

Original languageEnglish
Pages (from-to)2033-2042
Number of pages10
JournalEnergy and Environmental Science
Volume7
Issue number6
DOIs
Publication statusPublished - 2014

Fingerprint

Methane
Liquid fuels
Hydrogen
methane
hydrogen
Solar energy
liquid
Oxygen
Carbon footprint
oxygen
carbon footprint
Steam
Iron oxides
Fluidized beds
iron oxide
Conversion efficiency
simulation
experiment
Experiments
heating

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Chemistry
  • Pollution
  • Nuclear Energy and Engineering

Cite this

A hybrid solar-redox scheme for liquid fuel and hydrogen coproduction. / He, Feng; Trainham, James A; Parsons, Gregory; Newman, John S.; Li, Fanxing.

In: Energy and Environmental Science, Vol. 7, No. 6, 2014, p. 2033-2042.

Research output: Contribution to journalArticle

He, Feng ; Trainham, James A ; Parsons, Gregory ; Newman, John S. ; Li, Fanxing. / A hybrid solar-redox scheme for liquid fuel and hydrogen coproduction. In: Energy and Environmental Science. 2014 ; Vol. 7, No. 6. pp. 2033-2042.
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