Glycol regeneration

Experience also in the offshore sector

For transporting natural gas in pipelines on the seabed that connect offshore platforms to the mainland, glycol (MEG = MonoEthylene Glycol) is usually added as a corrosion inhibitor and for dehydration. The glycol absorbs the water contained in the gas flow together with the incorporated salts. After separation from the gas, the glycol is subsequently extracted thermally from the water again, in the course of which divalent salts in particular are precipitated, however. These are removed by means of candle filters of type CF and/or pressure plate filters of type PF from BHS-Sonthofen. Depending on the specific process, the loss of MEG can be minimized by rinsing with water in the pressure plate filter.

New filtration process for the efficient reclamation of glycol

Efficient glycol recycling is playing an increasingly important role in operating gas pipelines in an environmentally friendly manner. BHS-Sonthofen has developed a new process which recycles significantly more glycol than the processes used previously. As part of the mega gas plant project in Saudi Arabia, BHS was commissioned to design and supply three filter units. The large-scale project was carried out in six phases, from process optimization through to system transport. The entire project is set to be completed by the end of 2019.

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Brochure "Candle filter (CF)" (PDF / 3.4 MB)
Brochure "Candle filter (CF)"

Product brochure for candle filter (CF)

Size: 3.4 MB
Brochure "Pressure plate filter (PF)" (PDF / 1.6 MB)
Brochure "Pressure plate filter (PF)"

Product brochure for pressure plate filter (PF)

Size: 1.6 MB

Advantages of BHS filtration technology

  • High throughput rates
  • Fully automatic operation
  • Modular, turnkey plant concepts
  • Experienced partner for engineering companies

BHS filtration technical center

Link to tests at BHS technical center

Technical article

Glycol treating during pipeline transport of natural gas

Gas Processing & LNG
November/December 2018
December 2018
PDF (221 KB)
Glycol treating during pipeline transport of natural gas

The recovery of glycol, which is added to natural gas for transport, is playing an ever-increasing role in the efficient and environmentally friendly operation of gas pipelines. A new process has been developed to recover significantly more glycol, at a lower cost, compared with previously ...

Size: 221 KB

Removing salts and contaminants in glycol regeneration

ptq Petroleum Technology Quarterly
Q2 (Apr, May, Jun) 2014
April 2014
PDF (669 KB)
Removing salts and contaminants in glycol regeneration

A new process combining candle filters and pressure plate filters enables more glycol to be safely recovered from natural gas than by conventional methods

Size: 669 KB
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