A microfluidic device for conducting gas-liquid-solid hydrogenation reactions.

Heterogeneous hydrogenation reactions using a continuous flow high pressure device.

Several hydrogenation reactions involving O-debenzylations, aromatic nitro group reductions and reductive dethionations were investigated under continuous flow conditions in a novel, laboratory scale hydrogenation device that combines endogeneous hydrogen generation and heterogeneous Pd/C or Raney-Ni catalyst cartridges. The hydrogenation of organic compounds through addition and/or hydrogenoly...

Micro and Nanobubble Based Strategy for Gas-Liquid-Solid Multiphase Reactions: Palladium-Catalysed Hydrogenation of Carbon-Carbon Unsaturated Bonds

Partial acetylene hydrogenation over commercial Pd-Ag/α-Al2O3 catalyst promoted by ionic liquid

1-butyl-3-methyl imidazolinium hydroxide ionic liquid (BMIm[OH]) is loaded on commercial low surface area Pd-Ag/α-Al2O3 solid ‎catalyst to enhance higher selectivity of acetylene partial hydrogenation. Different experimental techniques such as atomic absorption spectroscopy, surface area measurement and gas chromatography have been utilized to characterize chemical, structural and catalytic pro...

Bridging the gap between homogeneous and heterogeneous catalysis: ortho/para H(2) conversion, hydrogen isotope scrambling, and hydrogenation of olefins by Ir(CO)Cl(PPh(3))(2).

Some transition metal complexes are known to catalyze ortho/para hydrogen conversion, hydrogen isotope scrambling, and hydrogenation reactions in liquid solution. Using the example of Vaska's complex, we present here evidence by NMR that the solvent is not necessary for these reactions to occur. Thus, solid frozen solutions or polycrystalline powdered samples of homogeneous catalysts may become...

On-line Spectroscopic Studies and Kinetic Measurements of Liquid-Phase Heterogeneous Catalytic Systems

A versatile and compact experimental apparatus for the on-line spectroscopic study of liquidphase catalytic systems was designed and characterized with respect to gas-liquid mass transfer, liquid-solid mass transfer and intra-particle diffusion. The utility of the system was demonstrated by two semi-batch differential heterogeneous catalytic reactions in d8toluene/h8-toluene, the racemic hydrog...