NASA NTRS · 19930000101
Membrane Separation Of Nitrogen Tetroxide
Abstract
Pilot plant reduces N2O4 content to one-hundredth of inlet value. Permeable-membrane process removes nitrogen tetroxide from stream of nitrogen or helium gas. Operates in conjunction with scrubbing process removing N2O4 from He or N2 after He or N2 used as gas blanket in N2O4-storage tank. First stage of separator divided into two steps for efficiency. Permeate from second step of first stage and residue from second stage returned to inlet of first stage. Each module contains spiral-wound interleaved permeable membranes and spacer sheets.
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Castro, R. C., Kaschemekat, J., Helm, V. D., Shrock, P. H., Wijmans, J. G.. 1993-02-01. Membrane Separation Of Nitrogen Tetroxide. https://ntrs.nasa.gov/citations/19930000101
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