Open AccessSTUDY OF NICKEL CATALYSTS PREPARED FROM RICE HUSK ASH FOR THE REACTION OF METHANE REFORMING WITH CARBON DIOXIDE
Author(s) -
Karine Zanoteli,
Jair C. C. Freitas,
Paulo Roberto Nagipe da Silva
Publication year - 2014
Publication title -
química nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.214
H-Index - 73
eISSN - 1678-7064
pISSN - 0100-4042
DOI - 10.5935/0100-4042.20140272
Subject(s) - husk , carbon dioxide reforming , methane , nickel , carbon dioxide , catalysis , methane reformer , pulp and paper industry , environmental science , waste management , materials science , chemistry , syngas , metallurgy , organic chemistry , steam reforming , engineering , botany , hydrogen production , biology
Rice husk ash (RHA) is used as a silica source for several purposes, among them to obtain metal catalysts, as was done in this work. The catalysts were characterized by chemisorption, physisorption, thermal analyses (TG, DSC), X-ray diffraction, X-ray fluorescence, temperature-programmed reduction and scanning electron microscopy. The catalysts synthesized with different Ni loadings supported on RHA were applied to the reaction of dry reforming of methane. The reaction was tested at three temperatures of catalytic reduction (500, 600 and 700 ºC). All synthesized catalysts were active for the studied reaction, with different H2/CO ratios achieved according to degree of metallic dispersion