首页|Study on the effect of red mud and its component oxides on the composition of bio-oil derived from corn stover catalytic pyrolysis
Study on the effect of red mud and its component oxides on the composition of bio-oil derived from corn stover catalytic pyrolysis
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NSTL
Elsevier
? 2022Red mud (RM) waste rich in metal elements was selected as a cheap catalyst for fast catalytic pyrolysis to obtain high value-added bio-oil. The structural patterns and the main oxide components of the RM were determined. In addition, the catalytic effects and mechanisms of the metal oxide components on the bio-oil composition from corn stover (CS) was elucidated. The results showed the content of ketones, furans and alkylphenol significantly increased, while the content of acids and aldehydes greatly decreased under the catalytic effects of the 800 ℃-calcined RM. Fe2O3 and CaO were the main contributor. CaO promoted the production of ketones, and the catalytic effect of Fe2O3 resulted in a good selectivity for acids and furans. Al2O3, TiO2 and SiO2 inhibited the production of methoxyphenols and promoted the production of acids. Main oxide components promoted the production of alkylphenols. The results provided scientific guidance for producing high value-added bio-oil with cheap RM catalyst.
NSTL
Elsevier
