hydrogenation solvent
1.In hydrogenation, methanol and Pd/C were used as solvent and catalyst. After hydrogenation and salifying at 50℃, white product 2,5-diamino-benzeneethanol was obtained with a yield of 92%.
2.The results indicated that the factors discussed above have certain effects on Ni/Al2O3. At the same time, the industrial appliedstudies on Ni/Al2O3 were carried out with 200 and 260 solvent oil. The industrial test results showed these catalysts with high aromatic hydrogenation and high sulfur tolerance can produce low aromatic environmental solvent oil with good quality under abirritant conditions.
3.The TPD results of supporter with residual solvent showed that methene produced by thermal resolving residual solvent was the surface active species in CO hydrogenation.
4.Furfuryl alcohol was prepared from furfuraldehyde in ethanol solvent with hydrogenation reduction by using these Raney nickel or cobalt catalyst at 1.0～1.2MPa and 100～120℃.
5.This paper introduces the aging mechanisms of bio-oil and various methods to improve the stability of bio-oil, including drying, deashing, hot-gas filtration, vapor-phase catalytic pyrolysis, adding solvent and mild hydrogenation, etc.
6.Ethanol, acetone and water as dispersing solvent, CuO/SiO 2 catalysts was prepared by means of iso volumetric impregnation. The capacity of H 2 adsorption, reduction and catalytic action of catalyst were studied by H 2 TPR and H 2 TPD and reaction of CO 2 hydrogenation.
