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Development of Highly Stable Low Ni Content Catalyst for Dry Reforming of CH 4 ‐Rich Feedstocks
Author(s) -
Ha Quan Luu Manh,
Lund Henrik,
Kreyenschulte Carsten,
Bartling Stephan,
Atia Hanan,
Vuong Than Huyen,
Wohlrab Sebastian,
Armbruster Udo
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.201902066
Subject(s) - carbon dioxide reforming , hydrotalcite , catalysis , calcination , spinel , lanthanum , citric acid , inorganic chemistry , chemistry , carbon fibers , syngas , materials science , chemical engineering , metallurgy , organic chemistry , engineering , composite number , composite material
Highly active and coking‐resistant Ni catalysts suited for the dry reforming of CH 4 ‐rich gases (70 vol %, e. g. biogas or sour natural gas) were prepared starting from a Mg‐rich Mg−Al hydrotalcite support precursor. Calcination at 1000 °C yields two phases, MgO and MgAl 2 O 4 spinel. Complexation‐deposition of Ni with citric acid on the preformed support as well as lanthanum addition yields a catalyst with remarkably low carbon accumulation over 100 h on stream attributed to both high Ni dispersion and preferred interactions of Ni with MgO on MgAl 2 O 4 .
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