SYNTHESIS OF CHITOSAN-G-ACRYLAMIDE FOR ENHANCED OIL RECOVERY AGENT

• Main Author: Sagita, Fuja
• Format: Final Project
• Language: Indonesia
• Subjects: Kimia
• Online Access: https://digilib.itb.ac.id/gdl/view/55085
• Institution: Institut Teknologi Bandung

It is estimated that petroleum reserve in Indonesia will only be available for the next 10 years, with the amount of production that continues to decline every year. Therefore, to increase oil production, Enhanced Oil Recovery (EOR) is used. One of the methods used in EOR is polymer flooding. In this technique, water-soluble polymers are used to increase the viscosity of water so that the oil is pushed to the production wells. Polyacrylamide is one of the polymers commonly used in polymer flooding. Apart from being relatively cheap, polyacrylamide was chosen because it is easy to obtain and relatively stable at high temperatures. However, polyacrylamide is susceptible to high salinity. In this study, chitosan-g-acrylamide was prepared to improve the performance of polyacrylamide as an EOR agent. Copolymer synthesis was carried out using three types of chitosan, A, B, and C, which had different degrees of deacetylation and viscosity-average molecular weight. Furthermore, acrylamide (AM) graft polymerization on chitosan (CS) was carried out with various CS/AM ratios followed by partial hydrolysis to form the HCS/AM copolymer. The optimum condition was indicated by chitosan type A (CS-A) with a Degree of Deacetylation (DD) of 50.77% and ???????????? of 7 x 105 gr/mol. From this research, it was found that HCS-A/AM 1/54 (w/w) had the most optimum performance at high salinity and high temperature. When compared with commercial HPAM (Partially Hydrolyzed Polyacrylamide), it was found that the chitosan-g-acrylamide had better resistance to salinity, but weaker against high temperatures.