How can methane (bottled @ 2000 psi) be drawn from the cylinder and heated to 400 K in lab safely? Seems the inital pressure drop from 2000 psi cylinder to 20 psi test tank causes extreme temperature drop. Tried running methane from 2000 psi cylinder through a steam heat exchanger, but can only heat methane to 350 K. What about using pressure to heat the methane?
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