Optimum Conditions of Hydrogenation Process Ricinoleic Acid Methyl Ester

• Main Author: KHAMINOV RIZKY (NIM : 13014039) - INDRA GOVINDO PASARIBU (NIM : 13014065), ARRY
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/25821
• Institution: Institut Teknologi Bandung

<p align="justify"> <br /> <br /> Castor oil (Ricinus communis L.) is one of renewable raw materials that is widely applied in various chemical industries such as lubricants, cosmetics, surfactants and additives. Castor oil has unique structure and properties to become one of the highest value-added commodities. In addition, the castor oil has a functional group that can be processed into various derivative products which have certain purposes and characteristics. With the acceleration of global industrialization, the demand for castor oil products has also increased. To meet the needs of various types of industries, the various derivative products of castor oil need to be continuously developed. One of the castor oil derivatives is methyl 12-hydroxistearate, a methyl ester fatty acid which has been applied in various industries especially lubricants industry. <br /> <br /> <br /> The general purpose of this study is to obtain the final product, methyl 12-hydroxistearate. The specific purpose of this study is to determine the optimum conditions of the hydrogenation process of the ricinoleic acid methyl ester by varying the operating pressure and temperature. The pressure and operating temperature of the hydrogenation process varied in the range of 2-4 bar and 150-210oC. The optimum condition is obtained by comparing the the characteristics value of the final product of the hydrogenation process through various test analysis which are acid value, saponification value, iodine value, hydroxyl value and gas cromatography analysis. <br /> <br /> <br /> According to this research, the result of hydrogenation process of ricinoleic acid methyl ester was methyl-12-hydroxistearate with up to 61,28%-wt concentration and Iodine Value of 23,84. The addition of hydrogenation reaction time for 3 hours resulted in reduction iodine number up to 9,82. In the operating condition variation range, the optimum operation condition for this process are 210oC temperature and 4 bar pressure. The increment of operating temperature and pressure increase the conversion of methyl 12- hydroxistearate and decrease the iodine value, but increase the acid value and decrease the hydroxyl value of methyl 12- hydroxistearate. <br /> <p align="justify">