Correct. There must be sufficient energy put back into the stream to compensate for the energy deficit caused by running the generator. That must be taken into consideration when determining the feasibility of the system. Gas heat exchangers are not cheap and do have their limitations.

I'm not saying the concept is without merit but it requires calculating the energy requirements of the system and determining if there is sufficient excess to make it worth while.

 

Gas heat exchangers are not cheap and do have their limitations.

I would think you would only need that if the gas gets cold enough to liquify.

 

Correct. There must be sufficient energy put back into the stream to compensate for the energy deficit caused by running the generator. That must be taken into consideration when determining the feasibility of the system.

This is ridiculous. The gas is under more pressure 'in the ground' than it is in the distribution lines. They have pressure regulators that lower the well pressure down to the transmission line pressure, because it's so high on the well side.