Oil spills collecting system – TEG

Objective

Technology and equipment for the production of thermoexpanded graphite

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Our oil spills collecting system — TEG — is based on the use of thermoexpanded graphite — heat-treated at 900-1500°C intercalated graphite. Also called flexible graphite, expanded graphite, vermiculated graphite, thermally split graphite, nanocluster structures, etc.

One weight of TEG absorbs 80 weights of oil. Synthesis rate – from 50 to 250 kg per hour directly on the site of the spill. Ability to spread from the bulk vessel to a distance of 50 m. Subsequent processing of the collected oil products.

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The unique combination of performance properties of thermoexpanded graphite, such as a wide temperature range, high chemical resistance, excellent sealing ability, contribute to the sustainable growth of consumption of the seals on its base of many industries.

Thermally expanded graphite, used for manufacturing of graphite seals, is obtained from the natural graphite through synthesis of intercalated graphite (IG).

In the obtaining process the thermoexpanded graphite not only retains all of the valuable properties of graphite, but acquires new: such as extremely low bulk density, more developed surface, moldability (rolling, pressing) without adding a binder.

Unreinforced materials and gaskets from thermoexpanded graphiteare stable in air up to 500 – 550°C, in water vapor – 650°C, in an inert atmosphere – 3000°C; they withstand thermal shocks, as well as low temperature up to – 240°C. These materials are chemically stable, highly thermo-conductive, and electrically-conductive.

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TEG/

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Prototype/

  • High chemical resistance in most environments, except strong oxidants (such as oleum, concentrated acids: sulfuric, nitric and chromic)
  • Operation at operating pressures up to 40 MPa (there are precedents for the use of up to 100 MPa in special constructions)
  • High elastic characteristics (Young’s modulus in compression of 100 to 200 MPa, depending on the density)
  • Gas permeability perpendicular to the rolling surface is close to zero (in the order of 10 – 6 cm³ * cm / cm² * s * atm nitrogen)
  • Conductivity of about 105 (ohm * m) -1
  • Coefficient of friction against steel (humid atmosphere) from 0.06 to 0.12 (data from different sources)
  • Tensile strength: ≥ 4.5 MPa at a density of 1.0 g / cm³; ≥ 3.5 MPa at a density of 0.8 g / cm³; ≥ 7.0 at a density of 1.4 g / cm³, etc

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