Patents
Literature
2 results about "Ferrierite" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
The ferrierite group of zeolite minerals (the FER structure) consists of three very similar species: ferrierite-Mg, ferrierite-Na, and ferrierite-K, based on the dominant cation in the A location. ferrierite-Mg and ferrierite-K are orthorhombic minerals and ferrierite-Na is monoclinic with highly variable cationic composition, (Na,K)₂Mg(Si,Al)₁₈O₃₆(OH)·9H₂O. Calcium and other ions are often also present. They are found in vitreous to pearly, often radiating, spherical aggregates of thin blade-shaped transparent to translucent crystals.
Ferrierite molecular sieve catalyst as well as preparation method and application thereof
PendingCN121972213AImprove acid site distributionhigh selectivityHydrocarbon by isomerisationMolecular sieve catalystsPtru catalystIon exchange
The invention provides a ferrierite molecular sieve catalyst and a preparation method and application thereof, and the preparation method comprises the following steps: (1) mixing a first raw material system comprising an alkali source, an aluminum source, a silicon source, a composite template agent and water, and carrying out a first reaction to obtain a first material; (2) carrying out hydrothermal treatment on the first material, and then sequentially carrying out filtering, first drying and first roasting to obtain a second material; (3) carrying out ion exchange on the second material and a second raw material system containing an aqueous solution of ammonium salt to obtain a third material; and (4) mixing the third material with a third raw material system containing a binder and a solvent, and carrying out extrusion molding, secondary drying and secondary roasting to obtain the ferrierite molecular sieve catalyst. The ferrierite molecular sieve catalyst provided by the invention has high superposition reaction selectivity, high cracking catalytic efficiency and low cost.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
A PROCESS FOR THE PRODUCTION OF NITRIC ACID COMPRISING A CATALYTIC TREATMENT OF N2O FROM THE TAIL GAS AND A NITRIC ACID PRODUCTION UNIT
PROCESS FOR THE PRODUCTION OF NITRIC ACID COMPRISING A CATALYTIC TREATMENT OF N2O FROM TAIL GASES AND A NITRIC ACID PRODUCTION UNIT. The invention relates to a process for the production of nitric acid comprising at least one step for treating a gaseous effluent containing N2O, said process comprising at least the following steps in this order: - a step in which ethanol is added to the gaseous effluent; - a step for treating the gaseous effluent which is a decomposition step of N2O on a catalytic bed containing at least one catalyst comprising an iron-exchanged ferrierite zeolite, at a temperature below 400°C. The invention also relates to a nitric acid production unit. Figure for the abstract: Fig. 2
Owner:ENERCAT +4