Effect of support type and crystal form of support in the catalytic gasification of old corrugated containers using Fe-based catalysts.

• The effect of support in Fe-based catalyst on OCCs gasification was studied. • Fe/amorphous Al 2 O 3 shows best H 2 selectivity (51.46%) due to good Fe dispersity. • Fe/TiO 2 shows best H 2 yield (25.10 mmol/g) due to Fe 2 TiO 5 solid-melt component. • Fe/amorphous Al 2 O 3 shows good activity and stability on H 2 production. Catalytic gasification of old corrugated containers with Fe-based catalysts is a promising way to produce renewable H 2 along with the utilization of solid waste. In this study, the effect of support type and crystal form of support in Fe-based catalysts on the catalytic gasification of old corrugated containers was systematically investigated. The results show that, the introduction of Fe/γ-Al 2 O 3 , Fe/TiO 2 , Fe/SiO 2 , and Fe/ZSM5-30 promote H 2 production. Among them, Fe/TiO 2 has the highest catalytic activity on H 2 yield (25.10 mmol/g) related to the formation of Fe 2 TiO 5 solid-melt material. Fe/γ-Al 2 O 3 shows the best H 2 selectivity (46.34 %) and good H 2 yield (24.19 mmol/g) due to good dispersity of Fe. Further, the order of catalytic effect on H 2 selectivity is Fe/amorphous Al 2 O 3 (51.46 %) > Fe/α-Al 2 O 3 (46.98 %) > Fe/γ-Al 2 O 3 (46.34 %). With the increase in cycle index, Fe/amorphous Al 2 O 3 shows the best catalytic effect on H 2 yield (25.56 mmol/g) after 11 indexes due to the formation of Al 2 FeO 4. Fe/γ-Al 2 O 3 shows the best stability on H 2 selectivity (∼43 %) after 11 indexes. [ABSTRACT FROM AUTHOR]