Abstract:
PURPOSE: A zeolite core/silica zeolite shell compound, a manufacturing method thereof, and a catalyst including the same are provided to solve a problem in which AI flows out from a zeolite and lowers the hydrocarbon reaction in a reaction process generated in case that an existing AI-containing zeolite is used as the catalyst of a reaction for a hydrocarbon conversion. CONSTITUTION: A manufacturing method of a zeolite core/silica zeolite shell compound includes a step growing a silica zeolite shell having a crystal structure coherent to the zeolite seed crystal by crystallizing after adding a zeolite seed crystal in a gel solution containing a silicon-source compound, a structure-directing agent, and a fluorine anion-source compound. The fluorine anion-compound is selected from a group consisting of HF, NH4F, (NH4)2SiF6, and combinations thereof. The mole ratio of a silicon-source compound contained in the gel solution: a structure-directing agent: a fluorine anion-source compound: water is 2- 5:1.5-2.5:0.1-1.5:50-100. [Reference numerals] (AA) Original seed crystal; (BB) Newly grown crystal