Supply of a state-of-the-art Glycol (TEG) Regeneration Unit to be installed on an existing offshore gas production platform in the North Sea. This unit is designed to efficiently regenerate TEG used in gas dehydration while ensuring that hazardous outlet vapors are safely combusted with an impressive 99.9% efficiency in our Overhead Vapor Combustor (OVC).
One of the special features of this unit is its custom-designed windshield, which seamlessly integrates with the existing production platform. This unique design not only enhances operational efficiency but also significantly reduces offshore installation time.
Engineered for a demanding offshore environment
Retrofitting process equipment onto an operating North Sea platform brings a unique set of challenges: limited deck space, strict weight and footprint constraints, harsh weather exposure, and the need to keep interference with ongoing production to an absolute minimum. Every element of this TEG Regeneration Unit was engineered with those constraints in mind, from the compact skid layout to the routing of piping and instrumentation, so that the package could be transported, lifted into place, and tied into the existing gas dehydration system with minimal offshore man-hours.
Glycol regeneration is a critical step in the gas dehydration process. As natural gas is dried using triethylene glycol (TEG), the glycol itself becomes saturated with water and needs to be reconditioned before it can be recirculated. This unit reboils and strips the glycol to restore its water-absorbing capacity, allowing the platform’s dehydration system to keep meeting pipeline water-content specifications continuously and reliably.
A key focus throughout the design was environmental performance. The vapors released during the regeneration process contain volatile organic compounds (VOCs) and BTEX components that cannot simply be vented to atmosphere. By routing these vapors through the Overhead Vapor Combustor, the unit destroys them with 99.9% efficiency before release, ensuring the platform operates well within emissions requirements while protecting personnel and the surrounding marine environment.
The custom windshield mentioned above does more than shield the equipment from wind and sea spray: it was shaped specifically around the platform’s existing structure and sightlines, so the new skid could be positioned without costly modifications to adjacent equipment. This tailored approach to integration is typical of how FB Group approaches offshore retrofit projects, combining standardized process technology with project-specific engineering to minimize offshore hook-up time and get systems safely on stream faster.
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