To understand the effect of reaction temperature on sulfur during hydrothermal carbonization (HTC) of sewage sludge (SS), seven group of temperature (180–300 °C) were chosen to investigate the distributions and evolution of sulfur-containing compounds in hydrochar and the liquid products. Elemental analysis, X-ray photoelectron spectroscopy (XPS), and X-Ray powder diffraction (XRD) were used to characterize the distribution of sulfur in hydrochar. The concentrations of sulfate ions and sulfide were determined in the liquid sample. The experimental results showed that as the temperature increased, the O/C ratio decreased because of the improved carbonization degree of SS. After hydrothermal carbonization, 90% of the sulfur in SS remained in hydrochar. As the temperature increased, the amount of sulfur in the liquid, mainly in the form of sulfate ions, tended to decrease. However, the experimental results for the gas phase were the opposite of the liquid phase.

为了了解污水污泥（SS）的热液碳化（HTC）过程中反应温度对硫的影响，选择了七组温度（180-300°C）来研究含碳化合物在水焦油中的分布和演变，并研究了其中的碳氢化合物。液体产品。使用元素分析，X射线光电子能谱（XPS）和X射线粉末衍射（XRD）来表征水煤中硫的分布。测定液体样品中硫酸根离子和硫化物的浓度。实验结果表明，随着温度的升高，由于SS碳化程度的提高，O / C比降低。水热碳化后，SS中90％的硫保留在水煤中。随着温度升高，液体中的硫含量 主要以硫酸根离子的形式，倾向于减少。但是，气相的实验结果与液相相反。