Abstract
Experiments are described and a model is evaluated for the process of production of superpure hydrogen from mixtures with ammonia and nitrogen by selective diffusion through thin metallic membranes.
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Abbreviations
- jH, jC :
-
molar fluxes of hydrogen and ballast gas
- k:
-
effective permeability coefficient (product of hydrogen solubility coefficient times diffusion coefficient, divided by membrane thickness)
- l, L:
-
coordinate measured along supply channel and maximum value thereof (channel length)
- M:
-
molecular weight of hydrogen
- P:
-
working perimeter of diffusion cell
- p, p′:
-
pressure in supply and output channels
- Q, QH :
-
mixture flow rate and hydrogen output for one cell or entire unit
- S:
-
area of working section of supply channel
- v′:
-
velocity in output channel
- x, xo :
-
molar fraction of hydrogen in mixture and value thereof at inlet
- z, Z:
-
dimensionless coordinate and length of apparatus
- α, β:
-
dimensional and dimensionless hydraulic resistance coefficients
- η, η* :
-
dimensionless pressure in output channel and value thereof at outlet
- ξ:
-
dimensionless pressure (concentration) of hydrogen in supply channel
- ρ′:
-
hydrogen density in output channel
- ϕ:
-
relative output
Literature cited
N. P. Chopey, “Tomorrow's hydrogen economy: still needing its big push,” Chem. Eng., No. 4, 51–53 (1976).
E. E. Shpil'rain and S. P. Malyshenko, “Some aspects of the development of hydrogen energy production and technology,” Teploenergetika, No. 3, 8–12 (1980).
M. M. Mallikarjunan, E. E. Lippert, and P. Schneider, “Zarizeni pro cisteni vodiku permeaci paladiovou membranou,” Chem. Listy,69, No. 2, 199–201 (1975).
M. K. Pis'men, Hydrogen Production in the Petroleum Processing Industry [in Russian], Khimiya, Moscow (1976).
K. Kammermeyer, “Technical gas permeation processes,” Chem. Ing. Tech.,48, No. 8, 672–675 (1976).
N. I. Timofeev, G. E. Kagan, V. A. Gol'tsov, and V. V. Latyshev, “Diffusion coefficient, permeability, and solubility of hydrogen and deuterium in the alloy V-1,” in: Physical Properties of Metals and Alloys [in Russian], Sverdlovsk (1974), pp. 137–139.
“Purity's the payoff,” Editorial Paper, Chem. Week, No. 13, 49–52 (1965).
H. Quillman, “Reinigung von Wasserstoff durch Diffusion,” Chemie Anlagen Verfahren, No. 4, 107–110 (1976).
C. H. Blaisdell and K. Kammermeyer, “Countercurrent and concurrent gas separation,” Chem. Eng. Sci.,28, No. 6, 1249–1255 (1973).
J. M. Thorman, H. Rhim, and S. T. Hwang, “Gas separation by diffusion through silicone rubber capillaries,” Chem. Eng. Sci.,30, No. 4, 751–754 (1975).
S. T. Hwang and J. M. Thorman, “The continuous membrane column,” AIChE J.,26, No. 4, 558–566 (1980).
Yu. A. Buevich and I. V. Kirnos, “Diffusion separation of reacting gas mixtures,” Inzh.-Fiz. Zh.,46, No. 6, 922–930 (1984).
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 47, No. 1, pp. 100–108, July, 1984.
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Baboshin, V.M., Buevich, Y.A., Ivonin, A.K. et al. Diffusion separation of hydrogen from gas mixtures. Journal of Engineering Physics 47, 821–826 (1984). https://doi.org/10.1007/BF00832599
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DOI: https://doi.org/10.1007/BF00832599