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WIREs Energy Environ.
Impact Factor: 3.297

Review of catalytic syngas production through steam or dry reforming and partial oxidation of studied liquid compounds

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Although natural gas is the main feedstock for the production of hydrogen and syngas, liquid hydrocarbons and oxygenated compounds are of interest for reasons associated with their local availability and their easiness to be stored and transported. This review focuses on steam, dry, and partial oxidation of liquid feedstock. The vast research work published in these fields does not allow for a full coverage of the entire literature. Instead, the authors present from both scientific and technical stand points the knowledge which seems more promising toward eventual improvements of commercial units and utilization of new catalytic formulations. Since traditional steam reforming is relatively very well covered by other reviews, this review has mainly focused on the relatively recent works on glycerol, a biodiesel production by‐product, and the widely available and distributed commercial diesel/biodiesel. New promising catalytic formulations are proposed and are actually under testing for eventual commercial use. Nevertheless these catalysts might be eventually efficient for gaseous (e.g., CH4) hydrocarbons conversion to syngas. Dry and partial oxidation has also been reviewed both globally and in an incremental way. All liquid feedstock tested are reported. Finally, this review tries to bridge the gap between fundamental and factual research in this field. Both are important but the interpretation of the results remains a strong function of each paper's main focus. This review does not pretend that this gap is fully bridged but it has the ambition to help the researchers as well as the practitioners in this area to synthesize the existing knowledge. WIREs Energy Environ 2016, 5:169–187. doi: 10.1002/wene.167 This article is categorized under: Bioenergy > Science and Materials Fuel Cells and Hydrogen > Science and Materials
(a) Conceptual model of fouling, crystallite encapsulation and pore plugging of a supported metal catalyst due to carbon deposition; (b) Catalytic reaction and coke deposition on the catalyst (a, g, and s refer to adsorbed, gaseous, and solid states, respectively).
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Design details of the reformer reported by González et al.
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Comparison of Pt and Pt/LaMnO3 monoliths, SEM micrographs, and particle size distributions. Pt monoliths: (a) fresh, (b) used, and (c) particle size distributions. Pt/LaMnO3monoliths: (d) fresh, (e) used, and (f) particle size distributions.
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TPO of C deposited on Pt/Al2O3 (), Pt/ZDC (), and Rh/ZDC ().
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Ratios of H2 to CO at different temperatures and CO2/glycerol molar ratios, at atmospheric pressure.
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(a) Diagram of a proposed concept for hybrid steam reforming of methane and glycerol (adapted from Ref ). (b) Membrane reactor schematic for reforming.
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Thermodynamic equilibrium calculation of glycerol reforming: (a) conversion and (b) gas products, for an S/C = 3:1.
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TEM of catalysts after 20 h on‐stream: (a) details of multi‐walled nanotube, (b) Ni/TiO2 by LPS, (c) Ni/TiO2 by FP, (d) Ni/TiO2 by FP, (e) Ni/SBA‐15 by LPS, (f) Ni/SiO2 by FP, (g) Ni/SiO2 by FP, (h) Ni/ZrO2 by LPS, and (g) Ni/ZrO2 by FP.
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Hydrogen yield for three different catalyst shapes.
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TEM images of MCM‐41: taken with the electronic beam (a) vertical and (b) parallel to the axis of the channels.
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Diesel steam reforming test. (a) SEM image of catalyst after used. (b) Gaseous product concentrations. Reaction conditions: H2O/C = 1.9; GHSV = 25,000 cm3 h−1 g−1; T = 760°C.
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Steam catalytic reforming of a diesel surrogate (hexadecane) with NiAl2O4/Al2O3–YSZ at different conditions.
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