Study on Methanation Performance of Biomass Gasification Syngas Based on a Ni/Al₂O₃ Monolithic Catalyst.

The results are shown in Figure 9 ; it can be seen that the CO conversion and CH 4 selectivity of the DIP-Ni/Al 2 O 3 catalyst are basically maintained at around 90% with the increasing WHSV, indicating that the catalytic activity and selectivity of the catalyst prepared by the dipping method is relatively stable. However, the CO conversion and CH 4 selectivity for the SG-Ni/Al 2 O 3 catalyst show a decreasing trend; the CO conversion decreases from 81.9 to 62.7% and CH 4 selectivity decreases from 73.4 to 56.2% when the WHSV increases from 6000 to 14,000 mL g –1 h –1 .

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