As part of an ongoing project at Karlsruhe Institute of Technology (KIT), Germany, this work examines the liquefaction of varying feedstocks under conditions of the Bergius process of direct coal liquefaction by high pressure heterogeneous catalytic hydrogenolysis. Applying this process onto renewable resources like lignin and lignin-rich biomass has the potential to produce aromatic components for chemical industry.

The performed experiments investigate the chemical conversion of different lignin types alongside samples of beech bark and beech wood fiber residues from pulp and paper industry using different heterogeneous catalysts and catalyst preparations. Reaction conditions such as catalyst concentration, temperature and concentration of sulfur were varied in order to optimize the conditions of liquefaction for the chosen setup.

It will be shown that lignin and lignin-rich biomass can be liquefied under conditions of direct coal liquefaction using molybdic acid and sulfidic iron catalysts. The liquid oil product can be obtained in good yields up to 60% mass fraction of the input feedstock, consisting of alkylated phenols and alkyl benzenes while removing the majority of hetero atomic functional groups. This can be achieved while producing only a minimal amount of solid residue, reaction water and a valuable gas byproduct.

作为德国卡尔斯鲁厄技术学院（KIT）正在进行的项目的一部分，这项工作研究了在高压非均相催化氢解直接煤液化的Bergius工艺条件下，各种原料的液化。将此工艺应用于木质素和富含木质素的生物质等可再生资源，具有生产化学工业芳香族成分的潜力。

The performed experiments investigate the chemical conversion of different lignin types alongside samples of beech bark and beech wood fiber residues from pulp and paper industry using different heterogeneous catalysts and catalyst preparations. Reaction conditions such as catalyst concentration, temperature and concentration of sulfur were varied in order to optimize the conditions of liquefaction for the chosen setup.

结果表明，木质素和富含木质素的生物质可以在煤直接液化的条件下使用钼酸和硫化铁催化剂进行液化。液态油产品的收率高达输入原料的60％（质量分数），由烷基化的苯酚和烷基苯组成，同时去除了大多数杂原子官能团，收率很高。这可以在仅产生最少量的固体残留物，反应水和有价值的气体副产物的情况下实现。