PRODUCTION • PROCESSING • HANDLING
INTRODUCING ELECTROCHLORINATION Electrochlorination eliminates the storage and handling of hazardous chemicals on board, is safe, environmentally friendly and, importantly, protects and prolongs the life of oil and gas assets. It is well proven having been in use for more than four decades but recent advances in cell technology have increased its power, reduced its footprint and boosted wider operational benefits. Te technology works by taking a small amount of water from a seawater line that remains constantly under pressure. Te water passes – at high velocity – through the electrolytic cells where part of the salt is converted to sodium hypochlorite. Tis dilute, safe solution of sodium hypochlorite is directly injected into the water circulation, preventing the growth of common marine species. Tis immediately frees operators and engineers from the cost and risk of purchasing, handling and storing potentially dangerous chemicals, while effectively protecting wetted components from biofouling. As well as the safety benefits of
electrochlorination, the lifetime cost of ownership is significantly lower than ongoing chemical purchasing. Removing the need for chemical inventory also increases a plant’s operational resilience as there’s no reliance on chemical suppliers.
ELIMINATING THE MAINTENANCE BURDEN One of the greatest advantages of electrochlorination technology for the oil and gas industry is its low maintenance
MGP technology is essential for oil & gas facilities
requirements. Some traditional MGP technologies are time-intensive for engineers to manage; reducing this burden on maintenance engineers frees up time and personnel costs. It also makes the technology ideally suited for use on unmanned offshore platforms. Electrochlorination technology, such
as Evoqua’s Chloropac system, has a self-cleaning ability, which means that the system does not require acid wash or other external electrode cleaning methods. Tis task is a significant time commitment for engineers, when you consider an average system may need
acid washing every three weeks. Plus, during this maintenance time plant production may need to be reduced or stopped all together. Electrochlorination technology allows system users to operate at design output capacity at all times, as the systems can be maintained in-situ versus other technologies which have to be removed from site and returned to the manufacturer.
THE FUTURE IS HERE When it comes to protecting production within the oil and gas sector and long-term viability, the right technology solutions are critical. Whether operators are building a new plant, retrofitting technology or extending the life of an ageing platform, production can be protected with the right technology solution. Although MGP technology will protect and preserve the life of critical oil and gas assets that use seawater for cooling, today’s operators can demand more. With an electrochlorination system that is designed to meet the unique demands of on and offshore oil and gas plants, engineers can benefit from increased uptime, considerably reduced maintenance requirements, a safer process and improved whole life costs.
Darren Dale is with Evoqua Water Technologies.
www.evoqua.com
Electrochlorination systems reduce maintenance and protect oil & gas production 34
www.engineerlive.com
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