Cairbags® for storage tanks
Cairbags and Linerbags make storage tanks emission and spill free,
while eliminating corrosion and cleaning
and reducing the risk of fires and explosions.
Cairbag and/or Linerbag in fixed roof tank
The Cairbag is positioned inside the tank and fills at all times that space inside the tank that is not taken by the liquid and hence avoids any free air to be present in the tank and thus also avoids any contact between liquid and air. This eliminates any vaporisation and sustains the quality of the product.
The Linerbag creates a "double hull" and contains all liquid inside the tank. The Linerbag thus prevents leakage of the liquid into the subsurface, corrosion of the steel tank and eliminates cleaning requirements in case of product change.
Advantages related to the Cairbag and Linerbag technology are:
Ø Permit to operate only when zero emmission technologies are applied
The patented Cairbag and Linerbag technology may form the basis for the allowance to operate or not. The economic gain of the patent is the total added value of such terminal or storage facility.
Ø Increasing storage capacity
The increase in storage capacity per square meter of land as the spacing between tanks can be reduced due to separation of the flammable liquid and air and due to the tank becoming a “double hull” type. The “two lines of defense” philosophy changes from tank walls being the first containment of the liquid and the bund wall the second line of defense in case of tank failure, to the Linerbag holding the liquid content, even in a stand-alone situation, and the tank wall functioning as the second line of defense. The Quantitative Risk Assessment (QRA) establishes that the fire and explosion risks reduce because the free air inside the tank is no longer directly in contact with the flammable liquid because of the Cairbag and/or Linerbag.
Ø Less insurance premium
The insurance premium is related to the risk of financial loss due to for example fires, explosions, spills or lightning. The new technology provides considerable improvements in these areas resulting in fewer spills, less fire, explosion and lightning accident risks.
Ø Less downtime and operational costLess downtime and less operational cost due to fewer accidents. Fire, explosion, spill or lightning accidents cause operational (reputation) damages which may have financial consequences not covered by the insurances.
Ø Less Emission taxes
Tank owners, dependent on their long lasting record of operations, may have obtained certain emission allocations and rights to emissions. A reduction of emissions means that the balance of emission rights can be traded off, resulting in income.
Ø Less cleaning cost
Using Linerbags reduces cleaning requirements and may even result in the elimination of all cleaning costs. In addition, tank users will no longer be required to pay for extensive cleaning time, thus improving competitiveness.
Ø Possibility of re-usable bags
In case of multiple consecutive product storage in a tank, an empty product specific Linerbag, which is not in use, is left inside the tank, while another product specific Linerbag is being used at that same moment.
Ø Innovative construction of tanks
The Cairbag may become the roof of a fixed roof storage tank, while the wall of the tank may be constructed of materials other than steel, reducing the weight of the tank and the investment cost of the tank and the maintenance cost thereafter.
Ø Economic value
No spill, no cleaning losses, no evaporation means no loss of stored product, hence no loss of economic value of the product.
Ø No corrosion of tanks
No free air avoids condensation problems, while heavy metals and other corrosive enhancing components do no longer deposit on the tank floor. This will significantly improve corrosion avoidance, tank life-time, maintenance and inspection intervals.
