Catalytic cracking of tar derived from rice hull gasification over palygorskite-supported Fe and Ni
Liu, Haibo , Chen, Tianhu, Chang, Dongyin, Chen, Dong, He, Hongping, & Frost, Ray L. (2012) Catalytic cracking of tar derived from rice hull gasification over palygorskite-supported Fe and Ni. Journal of Molecular Catalysis A : Chemical, 363-364, pp. 304-310.
The catalytic performance of Fe–Ni/PG (PG: palygorskite) catalysts pre-calcined and reduced at 500 ◦C for catalytic decomposition of tar derived through rice hull gasification was investigated. The materials were characterized by using X-ray diffraction, hydrogen temperature reduction, and transmission electron microscopy. The results showed that ferrites with spinel structure ((Fe, Ni)3O4) were formed during preparation of bimetallic systems during calcination and reduction of the precursors (Fe–Ni/PG catalysts) and NiO metal oxide particles were formed over Fe6–Ni9/PG catalyst. The obtained experimental data showed that Fe–Ni/PG catalysts had greater catalytic activity than natural PG. Tar removal using Fe6–Ni9/PG catalyst was as high as Fe10–Ni6/PG catalyst (99.5%). Fe6–Ni9/PG showed greater catalytic activity with greater H2 yield and showed stronger resistance to carbon deposition, attributed to the presence of NiO nanoparticles. Thus, the addition of nickel and iron oxides played an important role in catalytic cracking of rice hull biomass tar.
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|Item Type:||Journal Article|
|Keywords:||Palygorskite clay, Nickel oxide, Catalytic cracking, Biomass tar, Hydrogen yield|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||© 2012 Elsevier B.V. All rights reserved.|
|Deposited On:||13 Mar 2013 00:35|
|Last Modified:||13 Mar 2013 20:53|
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