Abstract
In this paper, we investigated the characteristics of the aqueous phases (APs) derived from different agricultural wastes (e.g., peanut and wheat straws) and the co-gasification of cotton stalk (CS) and APs. The functional groups and pyrolysis behavior of the APs at different hydrothermal temperatures (160 °C–300 °C) were analyzed by FTIR and TG-FTIR. The hydrothermal temperatures deeply influenced the evolution of the main gaseous products. Through the experiment and analysis of the co-gasification of CS and APs, it introduced that the co-gasification syngas product was dominated by hydrogen. The hydrothermal temperature of the AP influenced the distribution and yield of syngas products. The maximum hydrogen content was 57% in all experiments (syngas max output, 1657 mL). This paper provides new possibilities in the treatment of agricultural waste and the synthesis of sustainable energy.
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