The invention provides an integration method for in-situ dynamic construction of a
palladium-based catalyst and driving of synchronous hydrogenation of a
lignin derivative and crude bio-oil thereof.
Lignin derivatives and crude bio-oil thereof are used as raw materials, and high value-added aromatic compounds are prepared through in-situ
liquid phase hydrogenation. The
palladium precursor substance is anchored in situ on the carrier and reduced in situ in a
hydrogen atmosphere, and
palladium active sites with different particle sizes and valence states generated during the process synergistically promote hydro-conversion of
lignin and derivatives thereof. According to the present invention, the catalyst in-situ dynamic construction is combined with the reaction substrate in-situ synchronous hydrogenation catalytic
system, such that the aggregation of the palladium particles along with the temperature rising and the time prolonging can be effectively avoided, and the
active site loss caused by the contact of the palladium and the air during the catalyst transfer can be avoided so as to effectively promote the
hydrogenation process of the reaction substrate; the method is simple in process, does not involve toxic reagents, is green and environment-friendly, plays a role in promoting the development of bio-based chemicals and biological refining industries, and can generate huge
economic benefits,
social benefits and ecological benefits.