TY - JOUR
T1 - Hydrogen sulfide removal from biogas on ZIF-derived nitrogen-doped carbons
AU - Quan, Wenying
AU - Jiang, Xiao
AU - Wang, Xiaoxing
AU - Song, Chunshan
N1 - Funding Information:
This work was supported in part by the USDA Northeast Sun 697 Grant 5701-RU-SDSU-G640 and by The Pennsylvania State University through the Penn State-Dalian Joint Center for Energy Research. The XPS and STEM/EDS were performed at the Materials Characterization Laboratory of the Penn State Materials Research Institute, for which the assistance of Jeff Shallenberger and Jennifer Grey is gratefully acknowledged. One of the authors (Wenying Quan) thankfully acknowledges the financial support from Chinese Scholarship Council (CSC), China.
Funding Information:
This work was supported in part by the USDA Northeast Sun 697 Grant 5701-RU-SDSU-G640 and by The Pennsylvania State University through the Penn State-Dalian Joint Center for Energy Research. The XPS and STEM/EDS were performed at the Materials Characterization Laboratory of the Penn State Materials Research Institute, for which the assistance of Jeff Shallenberger and Jennifer Grey is gratefully acknowledged. One of the authors (Wenying Quan) thankfully acknowledges the financial support from Chinese Scholarship Council (CSC), China .
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/7/1
Y1 - 2021/7/1
N2 - This work studied the H2S removal from biogas, a CO2-containing gas mixture, over nitrogen-doped carbon materials deriving from the carbonization of ZIF-8. The H2S sorption performance on a series of N-doped porous carbon materials was investigated, in which the N-doping composition and textural properties of adsorbents were turned by varying the carbonization temperatures. By changing the carbonization temperatures from 750 to 950 ℃, the N contents vary in the range of 17.75−5.46 wt.%, and the BET surface area in the range of 373-757 cm2/g, while the H2S sorption capacity vary from 28.4–48.2 mg-H2S/g-sorb accordingly. Detailed characterization results (XPS, XRD, FTIR, and TGA/DTA) reveal the correlation of H2S sorption capacity with doped N species and porosity, in which the N surface area/volumetric density is crucial. This observation is corroborated by the kinetic studies by fitting H2S adsorption isotherms with Langmuir and Dubinin-Radushkevich isotherm (DR) isotherms. The H2S sorption capacity is independent of CO2 concentrations examined (up to 40 vol%) on ZIF-8-derived sorbents, making them promising candidates for H2S removal from biogas.
AB - This work studied the H2S removal from biogas, a CO2-containing gas mixture, over nitrogen-doped carbon materials deriving from the carbonization of ZIF-8. The H2S sorption performance on a series of N-doped porous carbon materials was investigated, in which the N-doping composition and textural properties of adsorbents were turned by varying the carbonization temperatures. By changing the carbonization temperatures from 750 to 950 ℃, the N contents vary in the range of 17.75−5.46 wt.%, and the BET surface area in the range of 373-757 cm2/g, while the H2S sorption capacity vary from 28.4–48.2 mg-H2S/g-sorb accordingly. Detailed characterization results (XPS, XRD, FTIR, and TGA/DTA) reveal the correlation of H2S sorption capacity with doped N species and porosity, in which the N surface area/volumetric density is crucial. This observation is corroborated by the kinetic studies by fitting H2S adsorption isotherms with Langmuir and Dubinin-Radushkevich isotherm (DR) isotherms. The H2S sorption capacity is independent of CO2 concentrations examined (up to 40 vol%) on ZIF-8-derived sorbents, making them promising candidates for H2S removal from biogas.
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U2 - 10.1016/j.cattod.2020.07.065
DO - 10.1016/j.cattod.2020.07.065
M3 - Article
AN - SCOPUS:85091219704
SN - 0920-5861
VL - 371
SP - 221
EP - 230
JO - Catalysis Today
JF - Catalysis Today
ER -