A new method to select demulsifiers and optimize dosage at wet crude oil separation facilities

The current practice for crude oil demulsifier selection consists of pre-screening the best performing demulsifiers followed by field trials to determine optimum dosage. method choice ranking is bottle test. As there no standard test method, are different methodologies reported in literature. In this work, a new approach and trial was described which improved significantly dosage demulsifier. optimized measuring an accurate mass This produces repeatable results. bottle-test methodology benchmarked against results performed processing plants. were also avoid accumulation effect demulsifier, when optimizing their data optimization analyzed mathematically; graphical range described.