4results about How to "Promote interaction" patented technology

The invention provides a binder for a catalytic cracking catalyst and a preparation method thereof, the binder comprises a sizing material, a curing agent and a modifier, and the curing agent is prepared from a gamma-alumina precursor, an acid and an alkyl ammonium salt through a hydrothermal reaction; the modifier is prepared by reaction of a polymeshed chelating ligand, a metal center ligand, ethanol and organic acid; the sizing material comprises a phosphorus-containing compound and an aluminum-containing compound. In the adhesive of the catalytic cracking catalyst provided by the invention, a metal center ligand composed of a multi-metal chelating ligand and a plurality of metals is introduced, under the promotion of organic acid and ethanol, a multi-metal chelate modifier can be prepared in situ in the process of preparing the adhesive, and compared with the direct use of a commercially available metal chelate, the preparation method has the advantages that the cost is low, and the efficiency is high. The in-situ prepared multi-metal chelate modifier has better water solubility, can promote the combination of the modifier and the phosphorus-aluminum sol, and has a better modification effect.

The application discloses a high-strength, large-pore-volume phosphorus-containing binder, characterized in that the binder comprises a glue, a curing agent and a modifier; the glue comprises a phosphorus-containing compound and an aluminum-containing compound; the curing agent comprises a gamma-aluminum oxide precursor, an acid and an alkylammonium salt, and the modifier is a metal chelate; wherein the colloidal solubility index of the gamma-aluminum oxide precursor is less than or equal to 50%; and the modifier is reacted with the glue in a high-shear dispersion emulsifier. The phosphorus-containing binder provided by the application, in combination with a conventional method, can obtain a catalytic cracking catalyst which, on the basis of high molecular sieve content and large pore volume, still has high wear resistance.

The invention discloses a catalytic cracking catalyst with high thermal wear resistance and a preparation method thereof, the catalytic cracking catalyst comprises the following raw materials: a zeolite molecular sieve, a matrix and a binder, the matrix is composed of a gamma-alumina precursor with a peptizing index less than or equal to 50% and clay, the binder comprises a phosphorus-containing compound, an aluminum-containing compound and a binder modifier; the binder modifier comprises a polymeshed chelating ligand, a metal center ligand, alcohol and organic acid, and the metal center ligand contains at least two metal ions; the catalytic cracking catalyst is prepared in a high shear emulsifier. Compared with the existing catalytic cracking catalyst, the catalytic cracking catalyst containing phosphorus and zeolite provided by the invention has the advantages of higher abrasive resistance, large pore volume, high molecular sieve content, high solid content and excellent reaction performance.

The invention discloses a catalytic cracking cocatalyst with high thermal wear resistance. The catalytic cracking cocatalyst comprises a molecular sieve, a matrix, a binder and a binder modifier, the molecular sieve has an MFI structure, and the molecular sieve with the pore diameter of less than 0.7 nm accounts for 50-100 wt% of the total amount of the molecular sieve; the matrix is composed of a gamma-alumina precursor with a peptizing index less than or equal to 50% and clay; the binder is prepared from a phosphorus-containing compound and an aluminum-containing compound; the binder modifier is prepared from the following raw materials: a polymeshed chelating ligand, precursors of at least two coordination metals, alcohol and organic acid; the binder is mixed with the binder modifier and the matrix in a high shear emulsifier. Compared with the existing catalytic cracking propylene and octane number promoter, the catalytic cracking promoter provided by the invention has higher thermal wear resistance, large pore volume and high molecular sieve content.