2results about How to "Long reaction cycle" patented technology

The application discloses a vanadium salt hetero-support and a preparation method and application thereof, and belongs to the field of material preparation and catalysis technology. The vanadium oxide-vanadium carbide hetero-support is prepared by a precursor method, vanadium salt is uniformly mixed with an organic carbon source, stirring and dissolving are conducted, drying and filtering are conducted, and a vanadium oxide-vanadium carbide hetero-support precursor is obtained, and the precursor is calcined in an argon or nitrogen atmosphere to obtain the vanadium salt hetero-support. The raw material used is low in price, the process is simple, no flammable and explosive gas is generated in the calcination process, the safety factor is high, the target product is generated by one-step calcination, impurities are not easily introduced, and the repeatability is high. The method is based on the theory of strong and weak metal carrier interaction, and a two-component vanadium salt hetero-support is used as a catalyst base, the catalyst sintering problem caused by Ostwald ripening, particle aggregation and migration is overcome, and thus a catalyst with good stability and good catalytic performance is obtained.

This invention relates to the field of carbonization equipment technology, and particularly to a carbonization reaction tower, comprising a reaction body with a reaction chamber inside; a mixing module including a distribution component, a mixing component, and a spacer component, the spacer component being disposed in the middle of the reaction chamber, dividing the reaction chamber into a gas flow chamber, a mixing chamber, and a deposition chamber, the mixing component being disposed within the mixing chamber; the distribution component being disposed within the deposition chamber, the distribution component being sealed and connected to the mixing pipe, and the distribution component being connected to the outside via an air inlet pipe; and a circulation separation module being disposed at the bottom of the reaction body, used to cyclone-separate the slurry at the bottom of the reaction chamber and then transport it to the top of the mixing module. The carbonization reaction tower provided by this invention, by forming a mixing pipe with a Venturi structure, significantly enhances the mass transfer process and reaction efficiency, while simultaneously enabling the separation and circulation of the bottom slurry, ensuring the degree of material reaction while preventing equipment blockage.