In this study, horticultural waste (HW) and sewage sludge (SS) with different mass ratios were co-gasified with steam at different temperatures to investigate the product distribution, gas synergistic interaction, and optimal design for gas products from co-gasification process. Results showed that with the increase of SS ratio in blends, the H2 content was increased and the syngas yield was decreased. The synergistic interaction was more significant at higher temperature which promoted the H2 production probably due to the reduction and steam oxidation of Fe species in SS during co-gasification process. The optimized highest effective gas content (82.92 vol%) was achieved with the highest HHV (11.40 MJ/m3) at the conditions of SS ratio = 0.80 and temperature of 900 °C. It indicates that steam co-gasification of HW and SS is a promising technology to produce desired syngas towards a clean and efficient waste management process.

中文翻译：

---

园艺废物和污水污泥的蒸汽共气化：产品分配，协同分析和优化。

在这项研究中，将具有不同质量比的园艺废物（HW）和污水污泥（SS）与蒸汽在不同温度下共气化，以研究产品分布，气体协同相互作用以及共气化过程中气体产品的最佳设计。结果表明，随着共混物中SS比例的增加，H2含量增加，合成气产率降低。高温下的协同作用更为显着，这可能是由于共气化过程中SS中Fe物种的减少和蒸汽氧化而促进了H2的产生。在SS比= 0.80和温度900°C的条件下，以最高的HHV（11.40 MJ / m3）实现了最佳的最高有效气体含量（82.92 vol％）。