The NATCO ELECTRO-YNAMIC DESALTER electrostatic desalting technology provides multiple phases of electrostatic mixing, coalescing, and settling in a single vessel, delivering nearly 100% salt and dehydration efficiency. The technology provides two-staged desalting efficiency without the excessive capital investments or space requirements common to conventional systems.
Comprising five proven Schlumberger process technologies, the NATCO ELECTRO-DYNAMIC DESALTER technology provides the refining industry with one of the first electrostatic desalting innovations in more than a decade.
Overview – NATCO ELECTRO-DYNAMIC DESALTER Increase operating efficiency while reducing operational expenses - Under a variety of conditions, the NATCO ELECTRO-DYNAMIC DESALTER technology can - Retrofit your single-stage system to two-stage performance - Increase the levels of salt removal over any other single-vessel process - Double the salt removal capacity of two-stage systems - Reduce initial capital costs for new installations - Allow higher inlet water cuts during upset conditions while maintaining specified effluent requirements - Improve effluent water quality - Improve operational flexibility by handling a wide range of feedstocks - Decrease chemical consumption - Improve mixing efficiency - Reduce washwater requirements - Require less space - Provie improved dehydration capabilities.
Application of NATCO ELECTRO-DYNAMIC DESALTER Five steps to successful desalting 1. NATCO DUAL POLARITY electrostatic treater—applies a high-gradient, sustained DC field between pairs of electrodes while maintaining an AC field between the electrodes and oil/water interface - Results: significant improvements compared with AC dehydration 2. Composite electrodes—obtains a progressive electrical field - Results: coalescence of the smallest of water droplets while eliminating sustained arcing due to highly conductive emulsions
3. LRC-II smart interface—regulates the flow of electrical current and provides self-adjusting electrical power levels for optimized electrostatic coalescence - Results: optimal salt removal over a wide range of feed stock materials 4. Countercurrent dilution water process—increases contact between dilution water, produced water, and particulate - Results: improved crude desalting using less washwater 5. Electrodynamic mixing process—provides multistage contact - Results: near-100% mixing efficiencies while enabling reduced demulsifier chemical consumption