Alkaline earth metal compound-containing zeolite catalyst, preparation method and regeneration method thereof, and method for producing lower hydrocarbon

A method for preparing an alkaline-earth metal compound-containing zeolite catalyst, comprising:

• a mixing-kneading step of adding polar solvent to a composition composed at least of a first component, a second component, and a third component, and kneading to form a mixture;
• and
• a drying-calcination step of drying and calcining the mixture,
• wherein the first component is composed of at least one of zeolites selected from a group consisting of proton-type zeolites and ammonium type zeolites,
• the second component is composed of at least one of alkaline-earth metal compounds,
• the third component is composed of at least one selected from a group consisting of aluminum oxides, aluminum hydroxides, silicon oxides, silicon hydroxides, and clay minerals,
• the first component has a molar ratio of Si/Al of 10 or more and 300 or less,
• content of the second component relative to the first component is 0.3 mass % or more and less than 10 mass % as alkaline-earth metal, and
• content of the third component relative to the first component is 15 mass % or more and 200 mass % or less.