铜酸复合催化剂催化硫酸盐木质素制备航油前驱体-原始数据

最近，一种掺铜的多孔金属氧化物催化剂（CuMgAlOx或CuPMO）在木质素DHDO领域引起了关注。然而，SA-Cu/CuMgAlOx催化剂在真正的木质素DHDO中的催化性能还没有被研究过，这具有重要意义。本研究报道了通过使用复杂的铜酸催化剂的解聚和加氢脱氧（DHDO）方法从废弃的牛皮纸木质素生产喷气燃料前体。牛皮纸木质素经历了高度的解聚、脱氧、氢化和C-C偶联。在360℃8小时内，获得了分子量在<200 Da和354-452 Da范围内的单体和二聚体，优化的产率达到93.29和39.30 C%，而分子量较高的三聚体和低聚体也以较低的含量生成。单体和二聚体的高碳产率是通过加入甲醇溶剂得到的。双键当量（DBE）和多分散指数（PDI）从牛皮纸木质素的14.77和2.77下降到产品的9.05和1.35，而反应后的高热值（HHV）从24.53增加到36.47兆焦耳/千克。此外，超过45%的优化产品的沸点在商业喷气燃料的范围内（60-280℃）。所有这些结果都证明了牛皮纸木质素DHDO的产品作为潜在的喷气燃料前体的适当特性。

Recently, a copper-doped porous metal oxide catalyst (CuMgAlOx or CuPMO) has attracted considerable attention in the field of lignin DHDO. However, the catalytic performance of the SA-Cu/CuMgAlOx catalyst in real lignin DHDO has not yet been investigated, which holds great significance. This study reports the production of jet fuel precursors from waste kraft lignin via the depolymerization and hydrodeoxygenation (DHDO) process using a complex copper-based catalyst. Kraft lignin undergoes extensive depolymerization, deoxygenation, hydrogenation, and C-C coupling. Within 8 hours at 360°C, monomers and dimers with molecular weights in the ranges of <200 Da and 354–452 Da were obtained, with optimized carbon yields reaching 93.29 and 39.30 C%, respectively, while higher-molecular-weight trimers and oligomers were also formed in relatively low contents. The high carbon yields of monomers and dimers are achieved by adding methanol as the solvent. The double bond equivalent (DBE) and polydispersity index (PDI) decreased from 14.77 and 2.77 of pristine kraft lignin to 9.05 and 1.35 of the resulting products, while the higher heating value (HHV) after the reaction increased from 24.53 to 36.47 MJ/kg. In addition, over 45% of the optimized products have boiling points within the range of commercial jet fuel (60–280°C). All these results demonstrate that the products derived from kraft lignin DHDO possess suitable properties as potential jet fuel precursors.

搜集汇总

背景与挑战

背景概述

该数据集涉及利用铜酸复合催化剂催化硫酸盐木质素，通过解聚和加氢脱氧工艺制备航油前驱体的原始实验数据。研究实现了木质素的高效转化，获得了高碳产率的单体和二聚体产物，其特性符合商业喷气燃料前体的要求。