1-Octadecene can be produced from 1-octadecanol through the reduction process using ZSiA catalyst in a fixed bed reactor operated at 400 oC. The reduction process was performed using hydrogen as a reduction agent gas. Five grams of 1-octadecanol was poured into evaporator and 5 g of catalyst was put into the reactor fixed bed system. Furthermore, the reactor was heated up to 400 oC and the evaporator was heated to the boiling point of 1-octadecanol. Then the product was flowing through the cooler and was collected in the bottle. The product was analyzed using GCMS.The reduction process of 1-octadecanol produced 20,21 % of 1-octadecene, 14,37 % of 5-octadecene and 10,40 % of 9-octadecene. The product had physical properties, of yellow and flammable.