The hydrogenation of GBL was studied in an environmentally friendly media using bimetallic nanostructured catalysts of palladium and rhenium supported on silica (PdRe/SiO₂). The impact of pressure and temperature on the catalytic performance was evaluated in aqueous media using an experimental design. Additional reactions were conducted solvent free and in supercritical CO₂ (scCO₂)_. Temperature was the only variable observed to produce a statistically significant effect on GBL conversion and both temperature and pressure were statistically significant to explain the selectivity of BDO. Moreover, the change in reaction media produced a remarkable impact on reaction selectivity. In fact, the selectivity could be completely reversed from THF to BDO in the presence of CO₂, showing that scCO₂ could be used as a tuner for reaction selectivity towards a given product. In solvent free conditions, THF was the main product (93%), whereas in scCO₂ the selectivity completely shifted towards BDO (100%).

GBL 的氢化是在环境友好的介质中使用负载在二氧化硅上的钯和铼的双金属纳米结构催化剂 (PdRe/SiO ₂ ) 进行研究的。使用实验设计在水性介质中评估压力和温度对催化性能的影响。_{其他反应在无溶剂且在超临界 CO 2} (scCO ₂ )中进行_。温度是观察到的唯一对 GBL 转化率产生统计显着影响的变量，温度和压力都具有统计显着性以解释BDO的选择性. 此外，反应介质的变化对反应选择性产生了显着影响。事实上，在 CO ₂存在的情况下，选择性可以从 THF 完全逆转为 BDO ，这表明 scCO ₂可以用作对给定产物的反应选择性的调节剂。在无溶剂条件下，THF 是主要产物 (93%)，而在 scCO ₂中，选择性完全转向 BDO (100%)。