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

Abstract

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.

Authors:
 [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)
Publication Date:
Research Org.:
T2C-Energy, LLC, Tampa, FL (United States); Univ. of South Florida, Tampa, FL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1417752
Grant/Contract Number:  
SC0015221
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Industrial and Engineering Chemistry Research
Additional Journal Information:
Journal Volume: 57; Journal Issue: 3; Journal ID: ISSN 0888-5885
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; Biogas; FTS; Reforming; Biomass; Drop-in Renewable Fuel; Catalyst

Citation Formats

Zhao, Xianhui, Walker, Devin, Maiti, Debtanu, Petrov, Amanda, Kastelic, Matthew, Joseph, Babu, and Kuhn, John. NiMg/Ceria-Zirconia Cylindrical Pellet Catalysts for Tri-reforming of Surrogate Biogas. United States: N. p., 2017. Web. doi:10.1021/acs.iecr.7b03669.
Zhao, Xianhui, Walker, Devin, Maiti, Debtanu, Petrov, Amanda, Kastelic, Matthew, Joseph, Babu, & Kuhn, John. NiMg/Ceria-Zirconia Cylindrical Pellet Catalysts for Tri-reforming of Surrogate Biogas. United States. https://doi.org/10.1021/acs.iecr.7b03669
Zhao, Xianhui, Walker, Devin, Maiti, Debtanu, Petrov, Amanda, Kastelic, Matthew, Joseph, Babu, and Kuhn, John. 2017. "NiMg/Ceria-Zirconia Cylindrical Pellet Catalysts for Tri-reforming of Surrogate Biogas". United States. https://doi.org/10.1021/acs.iecr.7b03669. https://www.osti.gov/servlets/purl/1417752.
@article{osti_1417752,
title = {NiMg/Ceria-Zirconia Cylindrical Pellet Catalysts for Tri-reforming of Surrogate Biogas},
author = {Zhao, Xianhui and Walker, Devin and Maiti, Debtanu and Petrov, Amanda and Kastelic, Matthew and Joseph, Babu and Kuhn, John},
abstractNote = {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.},
doi = {10.1021/acs.iecr.7b03669},
url = {https://www.osti.gov/biblio/1417752}, journal = {Industrial and Engineering Chemistry Research},
issn = {0888-5885},
number = 3,
volume = 57,
place = {United States},
year = {Fri Dec 22 00:00:00 EST 2017},
month = {Fri Dec 22 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 15 works
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Figures / Tables:

Figure 1 Figure 1: The XRD profiles of fresh and used pellet catalysts.

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Works referenced in this record:

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Works referencing / citing this record:

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