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Stable High‐Pressure Methane Dry Reforming Under Excess of CO 2
Author(s) -
Ramirez Adrian,
Lee Kunho,
Harale Aadesh,
Gevers Lieven,
Telalovic Selvedin,
Al Solami Bandar,
Gascon Jorge
Publication year - 2020
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202001049
Subject(s) - carbon dioxide reforming , methane , syngas , catalysis , coke , carbon dioxide , syngas to gasoline plus , chemistry , chemical engineering , methane reformer , carbon fibers , dry gas , high pressure , inorganic chemistry , materials science , steam reforming , organic chemistry , thermodynamics , composite material , hydrogen production , physics , composite number , engineering
Dry reforming of methane (DRM), the conversion of carbon dioxide and methane into syngas, offers great promise for the recycling of CO 2 . However, fast catalyst deactivation, especially at the industrially required high pressure, still hampers this process. Here we present a comprehensive study of DRM operation at high pressure (7–28 bars). Our results demonstrate that, under equimolar CH 4 : CO 2 mixtures, coke formation is unavoidable at high pressures for all catalysts under study. However, under substoichiometric CH 4 : CO 2 ratios (1 : 3), a stable high pressure operation can be achieved for most catalysts with no sign of deactivation for at least 60 hours at 14 bars, 800 °C and 7500 h −1 . In addition to the enhanced stability, under these conditions, the amount of CO 2 abated per mol of CH 4 fed increases by a 50 %.
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