Catalyst support is a material where it is a solid form whereby the catalyst is attached to it to support the catalyst by increasing the surface area. Catalyst support should not be confused with supported catalyst as these two terms have different meanings. Supported catalyst is a catalyst in which it is supported by the catalyst support consisting of inert metallic material in the form of granules or pellets with high adhesion property. The catalyst support functions as an adsorbent where the supported catalyst acts as an adsorbate. The catalyst support must have certain properties to improve the catalytic activity. Therefore, in order to choose the most suitable support material, it must have certain physical and chemical properties. Properties include the catalyst support which must be stable under reaction and regeneration conditions, have high porosity for mass and heat transport to be efficient and allow easy diffusion in and out, possess a large surface area for increase the activity and distribution of active components, ability to support and maintain mechanical stability at high temperatures to prevent abrasion and increase the durability of the catalyst on the support, possess high heat capacity and thermal conductivity to prevent heat from adsorption ignites the powdered metal and must be an inert but reactive material.What are the functions of the catalytic support? The main functions are such as to increase the surface area of ​​the active component. By increasing the surface area, more active sites are generated which will increase the efficiency of the catalyst by improving the catalytic activity. When the support material is large surface area such as activated carbon, discrete crystalline... half the paper... depending on the type of raw material used, the crystallization conditions, the degree of crystallinity of the zeolite and the desired composition. Subsequently, the crystallized zeolite is separated using rotating vacuum filters and washed with water. These zeolites then undergo some treatments to convert them into catalytic active material. NaY zeolite is exchanged with ammonium ions to eliminate sodium ions in an ion exchange tank which is then filtered and sprayed with the exchange solution. Excess salts on the exchanged zeolites are removed by washing. During the hydrothermal treatment of the zeolite, it is partially deamunitized and stabilized and the remaining sodium ions are moved into an exchangeable position. The degree of dealumination and the unit size of the product are determined through the calcination conditions to obtain the microcrystallized zeolite product.