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Title: NiMg/Ceria-Zirconia Cylindrical Pellet Catalysts for Tri-reforming of Surrogate Biogas

Journal Article · · Industrial and Engineering Chemistry Research
 [1];  [2];  [1];  [1];  [1];  [3];  [3]
  1. Univ. of South Florida, Tampa, FL (United States). Dept. of Chemical & Biomedical Engineering
  2. T2C-Energy, LLC, Tampa, FL (United States)
  3. Univ. of South Florida, Tampa, FL (United States). Dept. of Chemical & Biomedical Engineering; T2C-Energy, LLC, Tampa, FL (United States)

Cylindrical NiMg/Ce0.6Zr0.4O2 pellet catalysts with two different sizes (large: radius = 1.59 mm; and small: radius = 0.75 mm) were produced by extrusion of powder catalysts. The small catalyst pellets had a higher specific surface area, pore volume, average pore size, radial crush strength, and resistance to breakage than the large ones. Tri-reforming tests with surrogate biogas were conducted at 3 bar and 882 °C, with the feed molar ratios of CH4: CO2: air fixed at 1.0: 0.7: 0.95 and the H2O/CH4 molar feed ratio (0.35 – 1.16) varied. The small catalyst pellets exhibited lower internal mass transfer resistance and higher coking resistance, compared to the large ones. CO2 conversion decreased and H2/CO molar ratio increased with the increase of H2O/CH4 molar feed ratio, which are consistent with the trends predicted by thermodynamic equilibrium calculations. Finally, the results indicate that the NiMg/Ce0.6Zr0.4O2 catalyst pellets are promising for commercial scale applications.

Research Organization:
T2C-Energy, LLC, Tampa, FL (United States); Univ. of South Florida, Tampa, FL (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0015221
OSTI ID:
1417752
Journal Information:
Industrial and Engineering Chemistry Research, Vol. 57, Issue 3; ISSN 0888-5885
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

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Cited By (2)

Thermodynamic modelling and optimization of oxy-reforming and oxy-steam reforming of biogas by RSM journal July 2019
Thermodynamic modelling and optimization of oxy-reforming and oxy-steam reforming of biogas by RSM text January 2019

Figures / Tables (13)


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