| abstract |
The invention discloses a high-activity heavy aromatic hydrocarbon lightening catalyst and a preparation method thereof. The high-activity heavy aromatics lightening catalyst in the present invention is prepared by loading a precious metal precursor on a composite carrier through drying and roasting; the precious metal precursor is made of at least one of sponge platinum or chloroplatinic acid as a raw material, dissolved in Prepared platinum(IV) complex. The noble metal precursor can realize the directional quantitative impregnation on the composite support, and optimize the bifunctional matching relationship of the catalyst. The catalyst of the invention can efficiently process C 10 + heavy aromatics under low pressure conditions, and has a higher yield of light aromatics such as BTX, so as to solve the problems in the prior art that the conversion depth of heavy aromatics is low, and the catalyst deactivation rate of carbon deposition is fast. , the problem of low yield of light aromatics. Compared with the prior art, the catalyst of the invention has higher activity and stability for lightening heavy aromatic hydrocarbons, and is especially suitable for processing inferior C 10 + heavy aromatic hydrocarbons. |