Daftar Isi:
  • Oil recovery was studied in the effect of salinity, pH and temperature in biosurfactants of Pseudomonas aeruginosa. The application of oil recovery in petroleum wells is performed in bell siphon with water flooding system. Biosurfactants are varied in salinity, pH and temperature to obtain the optimal percentage of oil recovery. The biggest crude biosurfactant produce at NaCl 3% up to 33,56% oil recovery, then the best NaCl concentrations were combined with pH and develop oil recovery to 20.14% on pH 8. At a high temperature of 80°C, NaCl concentration of 3% and pH 8 increased oil recovery to the highest up to 26.09%. The results were tested statistically using ANOVA to obtain F count> F table, this shows that variations with salt NaCl, pH and temperature provide a significant difference to oil oil recovery. The biosurfactant of Pseudomonas aeruginosa bacteria dissolved hydrocarbon compounds fractions of <C10, C11 – C14 dan C18 – C21 conditions of 3% NaCl. Conditions of 3% NaCl and pH 8 is able to dissolve hydrocarbon compounds in fractions <C10, C14 and C18 - C21. Conditions of 3% NaCl and pH 8 are able to dissolve hydrocarbon compounds in fractions <C10, C11 - C21 and > C22. The condition of NaCl 3%, pH 8 and temperature of 60oC are able to dissolve hydrocarbon compounds in fractions <C10, C11 - C14 and> C22.