The well-established ester hydrogenolysis process has to be further improved to reduce its high energy demand and to replace used Adkins CuCr catalysts by chromium-free alternatives. In this study, the copper-based catalyst was modified by ZnO, ZnO with Al₂O₃ or MgO to elucidate the metal-oxide influence on catalyst structure, activity, performance and stability in ester hydrogenolysis. The catalysts composition, structure and physicochemical properties were examined by AAS, XRD, TPR, BET, N₂O-RFC, TGA-MS, NH₃-TPD and CO₂-TPD. It was confirmed that copper itself possesses high intrinsic activity for ester hydrogenolysis but the unpromoted copper species were very unstable. All used metal oxides were proven to be structural promoters stabilizing copper species and increasing the number of active sites. Consequently, they enhanced remarkably catalyst performance in dimethyl adipate conversion despite the decreased intrinsic activity of Cu active sites. All prepared catalysts outperformed a commercial CuCr catalyst in dimethyl adipate hydrogenolysis.

必须进一步完善行之有效的酯氢解工艺，以减少其高能量需求，并用无铬替代品替代用过的Adkins CuCr催化剂。在这项研究中，铜基催化剂用ZnO，ZnO与Al ₂ O ₃或MgO改性，以阐明金属氧化物对酯氢解催化剂结构，活性，性能和稳定性的影响。通过AAS，XRD，TPR，BET，N ₂ O-RFC，TGA-MS，NH ₃ -TPD和CO ₂考察了催化剂的组成，结构和理化性质。-TPD。证实铜本身具有高的酯氢解固有活性，但是未促进的铜种类非常不稳定。事实证明，所有使用的金属氧化物都是稳定化铜物种并增加活性位点数量的结构促进剂。因此，尽管铜活性位点的固有活性降低，但它们仍显着提高了己二酸二甲酯转化率的催化剂性能。在己二酸二甲酯氢解反应中，所有制备的催化剂均优于市售的CuCr催化剂。