In cases where it may not be cost-effective to reduce

[frankie_goes_to_hollywood]

В тех случаях, когда невозможно рентабельно уменьшить ?

In cases where it may not be cost-effective to reduce the C2 and C3 at the baseload plant, we have demonstrated that a proposed C2+ management process design for send-out gas at the LNG receiving terminal could be economically viable under certain circumstances.

[IS]

.. когда может быть экономически неэффективно....