Abstract Levoglucosenone (LGO) is a valuable chiral synthon and can be produced from pyrolysis of cellulose and biomass. In the present study, Ni-P-MCM-41 catalysts with various P-to-Ni ratios were prepared and employed for selective production of LGO from biomass. Both analytical pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and lab-scale experiments were conducted to explore the effects of several factors on the formation of LGO, including P-to-Ni ratio in Ni-P-MCM-41, catalyst/sample ratio and pyrolysis temperature. The results revealed that all the Ni-P-MCM-41 catalysts, especially the one with a P-to-Ni ratio of 5, exhibited excellent catalytic capability and selectivity for LGO production. For Py-GC/MS, the maximal LGO yields of 27.34 wt% and 14.30 wt% were achieved from cellulose and pine at 350 °C with catalyst/cellulose ratio of 3 and catalyst/pine ratio of 2, respectively. While in lab-scale experiments, the highest LGO yields from cellulose and pine were 21.37 wt% and 10.71 wt%, with the corresponding selectivity of 78.31% and 53.75%, respectively. The Ni-P-MCM-41 catalyst possessed much better catalytic efficiency on the LGO production than previously reported catalysts, including H2SO4, H3PO4, solid superacid, solid phosphoric acid and activated carbon.

中文翻译：

---

Ni-P-MCM-41催化生物质快速热解选择性生产左旋葡萄糖酮

摘要 左旋葡萄糖酮 (LGO) 是一种有价值的手性合成子，可通过纤维素和生物质的热解制备。在本研究中，制备了具有各种 P 与 Ni 比的 Ni-P-MCM-41 催化剂，并将其用于从生物质中选择性生产 LGO。进行了分析热解-气相色谱/质谱 (Py-GC/MS) 和实验室规模的实验，以探索多种因素对 LGO 形成的影响，包括 Ni-P-MCM- 41、催化剂/样品比和热解温度。结果表明，所有 Ni-P-MCM-41 催化剂，尤其是 P 与 Ni 比为 5 的催化剂，对 LGO 生产表现出优异的催化能力和选择性。对于 Py-GC/MS，最大 LGO 产量为 27.34 wt% 和 14。在 350°C 下，纤维素和松木分别达到 30 wt%，催化剂/纤维素比为 3，催化剂/松木比为 2。而在实验室规模的实验中，纤维素和松木的最高 LGO 产量分别为 21.37% 和 10.71%，相应的选择性分别为 78.31% 和 53.75%。Ni-P-MCM-41 催化剂对 LGO 生产具有比以前报道的催化剂更好的催化效率，包括 H2SO4、H3PO4、固体超强酸、固体磷酸和活性炭。