Nano ruthenium carbon-supported metal hydrogenating catalyst and method for producing the same

The invention relates to a nano ruthenium-carbon loaded metal hydrogenation catalyst and a preparation method thereof. The catalyst consists of an active carbon carrier and metal ruthenium loaded on the active carbon and subjected to reduction activation treatment. The preparation method for the catalyst comprises the following steps: after the active carbon is subjected to ultrasonic treatment by nitric acid solution with a certain concentration, repeatedly using deionized water to wash the active carbon to be neutral, adding the active carbon into water-soluble precursor solution of the metal ruthenium, stirring and soaking the active carbon, then adjusting the pH value of mixed slurry by using alkaline compound aqueous solution, continuously stirring the solution for certain time, filtering the solution, washing a filter cake by water to be neutral, pulping the filter cake by water, adjusting the pH value of the mixed slurry by using the alkaline compound aqueous solution, adding the liquid-phase reduction ruthenium-carbon catalyst of a chemical reducing agent into the solution, washing the filter cake, transferring the filter cake to an oven and drying the filter cake to obtain the nano ruthenium-carbon loaded metal hydrogenation catalyst. The catalytic activity of the catalyst is good, the selectivity is high, the catalyst is particularly applicable to catalytic hydrogenation reaction of pyridine and derivatives thereof, the preparation method is simple to operate, and the production period is short.