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Scion’s Evapostop Discs are a simple and effective solution for the reduction of Volatile Organic Compound (VOC) emissions from sumps, vessels and tanks used for the storage of volatile liquids.

Evapostop floating discs are ellipsoidal, hollow discs with flat collars (or Saturnian rings), which overlap to form a cover on the surface of the liquid and thus an effective mass transfer barrier. The optimum geometry of the discs ensures that they seek to maximise the liquid surface coverage at all times, achieving a 99.6% coverage factor.

Evapostop discs reduce Volatile Emissions from tanks by up to 90%.

The discs can be used in place of internal floating roofs and have a number of benefits over conventional systems:

• Useful when retrofit or flexible solutions are required;
• Can be installed in tanks with minimal effort, thus substantially reducing downtime;
• Non-corrosive and non-static (do not cause incendive sparks which may lead to internal explosions);
• Maintenance free;
• Greatly reduce the fire risk in tanks.

Applications
  • Storage of volatile liquids, e.g. gasoline, BTX’s, naphtha, alcohols, solvents in Fixed Roof Tanks; Storage of oxidation-sensitive base oils for the production of lube oils;
  • Storage of hazardous air pollutants such as BTX’s;
  • For the prevention of heat loss;
  • API Separators;
  • Boiler Feedwater Tanks (prevents oxygen ingress and heat loss);
  • Tanks of variable diameter, e.g. Horizontal Cylindrical Tanks;
  • In conjunction with a vapour recovery system, to reduce the cycle time and equipment size of vapour recovery system;
  • To reduce the release of odourants into the atmosphere.


Product Brochure Downloads:Evapostop Discs

Contact Scion Technologies to learn more about Scion’s Evapostop Discs.