WebAbstract. Hydrogenation of phenol is an important strategy to produce cyclohexane or cyclohexanol as both of them are raw materials for the synthesis of nylon-6 and nylon … Web3. mar 2008 · Phenol Hydrogenation to Cyclohexanone A. C. Dimian, C. Bîldea Published 3 March 2008 Chemistry The nominal plant capacity is 120 000 metric tonnes per year cyclohexanone of oxime purity.

Highly selective hydrogenation of phenol to cyclohexanone over a …

Web1. okt 2014 · When 400 μL of formic acid was introduced into 10 mL of 0.25 M aqueous phenol solution, phenol can be fully hydrogenated on 200 mg of Pd/AC catalyst at 50 °C within 4 h, with 80% selectivity to cyclohexanone. The high activity of Pd/AC catalyst in hydrogen transfer makes it possible for in situ upgrading of bio-oil under mild conditions … WebThe hydrogenation of phenol to cyclohexanone then occurred, but the reaction was regulated by the stoichiometric hydrogen species generated in situ in the system. Moreover, the produced aniline could readily desorb from Pd/MgO because of the limited acid density on the catalyst surface. All these phenomena benefited the reduction in the ... psa airlines flight 5224

Highly Selective Hydrogenation of Phenols to Cyclohexanone …

Web25. jan 2024 · In general, the conversion of phenol is proportional to the reaction time, in the same trend as the selectivity of cyclohexanol, but opposite to the cyclohexanone … Web3. júl 2024 · Abstract. Selective phenol hydrogenation to cyclohexanone is an important process in both the chemical industry and renewable feedstock processing. However, the … Web17. máj 2024 · Almost full conversion of phenol with high selectivity to cyclohexanone was achieved over Pd/NCNT under mild reaction conditions using either H 2 or formic acid (FA) as a hydrogen source. The effects of reaction temperature and FA/phenol ratio and the reusability were investigated. psa airlines flight attendant interview