Sugarcane bagasse is one of the major resources of agricultural biomass waste in the world. In this work, supercritical water gasification characteristics of sugarcane bagasse were investigated. The effect of temperature (600–750 °C), concentration (3–12 wt%), residence time (5–20 min) and catalysts (Raney-Ni, K₂CO₃ and Na₂CO₃) on bagasse gasification were studied. A kinetic study on the non-catalytic and Na₂CO₃ catalytic bagasse gasification was conducted to describe the kinetic information of the bagasse gasification reaction. The results showed that a higher reaction temperature, a lower bagasse concentration and a longer residence time could favor the gasification of bagasse, leading to a higher hydrogen yield. Bagasse was nearly completely gasified at 750 °C without using any catalyst and the carbon gasification efficiency could reach up to 96.28%. The addition of employed catalysts remarkably promoted the bagasse gasification reactivity. The maximum hydrogen yield (35.3 mol/kg) was achieved at 650 °C with the Na₂CO₃ loading of 20 wt%. The experimental data fitted well with a homogeneous model based on a Pseudo-first-order reaction hypothesis. The kinetic study showed that Na₂CO₃ catalyst could lower the activation energy E_a of bagasse gasification from 117.88 kJ/mol to 78.25 kJ/mol.

甘蔗渣是世界上农业生物质废物的主要资源之一。在这项工作中，研究了甘蔗渣的超临界水气化特性。温度（600–750°C），浓度（3–12 wt％），停留时间（5–20分钟）和催化剂（阮内镍，K ₂ CO ₃和Na ₂ CO ₃）对蔗渣气化的影响是研究过。非催化和Na ₂ CO _3的动力学研究进行了催化的蔗渣气化，以描述蔗渣气化反应的动力学信息。结果表明，较高的反应温度，较低的甘蔗渣浓度和较长的停留时间可能有利于甘蔗渣的气化，从而导致较高的氢气产率。在不使用任何催化剂的情况下，甘蔗渣在750°C时几乎被完全气化，碳气化效率可达到96.28％。所用催化剂的加入显着提高了蔗渣的气化反应性。在650°C时，Na ₂ CO _3的负载量为20 wt％，可实现最大氢产量（35.3 mol / kg）。实验数据非常适合基于伪一阶反应假设的均质模型。动力学研究表明，Na₂ CO ₃催化剂可使甘蔗渣气化的活化能E _a从117.88 kJ / mol降至78.25 kJ / mol。