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.

Graphical abstract

中文翻译：

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生物质气化和水热碳化（HTC）水相产生的富氢气体

在本文中，我们研究了源自不同农业废物（例如，花生和小麦秸秆）的水相（AP）的特性以及棉秆（CS）和AP的共气化。通过FTIR和TG-FTIR分析了在不同水热温度（160°C–300°C）下AP的官能团和热解行为。水热温度深刻影响了主要气态产物的演变。通过对CS和AP的共气化实验和分析，发现共气化合成气产物以氢气为主。AP的水热温度影响合成气产物的分布和产率。在所有实验中，最大氢含量为57％（合成气最大输出量为1657 mL）。

图形概要