Process and device for determining the para content of a hydroge

Details Process and device for determining the para content of a hydroge Process and device for determining the para content of a hydroge

1995-02-02

1996-12-03

Warden, Jill

Chemistry: analytical and immunological testing

Hydrogen, per se

422 62, 422 80, 422 83, 436 50, 436147, 436148, 73 2501, 73 2505, 4236481, 423649, G01N 2520

Patent

active

055807933

ABSTRACT:
Process and device for determining para content X.sub.1 of a hydrogen gas stream, in which temperature T.sub.1 as well as pressure p.sub.1 of the hydrogen gas stream are measured before its entry into at least adiabatically-operated para-ortho-conversion catalyst. The hydrogen gas stream flows through the para-ortho-conversion catalyst until equilibrium is established. Thereafter, temperature T.sub.2 as well as pressure p.sub.2 of the hydrogen gas stream are measured after the hydrogen gas exits from the para-ortho-conversion catalyst or are measured after the last of the latter exits the catalyst. Para content X.sub.1 of the hydrogen gas stream, at the instant before entering the para-ortho-conversion catalyst, is determined by relations h.sub.1 (X.sub.1, T.sub.1, p.sub.1)=h.sub.2 (X.sub.2, T.sub.2, p.sub.2) and X.sub.2 =X.sub.g (T.sub.2) in equilibrium, in which h.sub.1 is the enthalpy of the hydrogen gas stream at the inlet of the para-ortho-conversion catalyst and h.sub.2 is the enthalpy of the hydrogen gas stream at the outlet of the para-ortho-conversion catalyst.

REFERENCES:
patent: 2234128 (1941-03-01), Miller
patent: 2937076 (1960-05-01), Class et al.
patent: 2943917 (1960-07-01), Weitzel
patent: 3043110 (1962-07-01), Ahern
patent: 3092461 (1963-06-01), Arend et al.
patent: 3094390 (1963-06-01), Vander Arend
patent: 3095274 (1963-06-01), Crawford
patent: 3116115 (1963-12-01), Kasparian et al.
patent: 3180709 (1965-04-01), Yendall et al.
patent: 3375076 (1968-03-01), Vander Arend
patent: 3380809 (1968-04-01), Newton
patent: 3383176 (1968-05-01), Keith
patent: 3535915 (1970-10-01), Felton et al.
patent: 3578405 (1971-05-01), Woodle
patent: 3725005 (1973-04-01), Innes
patent: 3992167 (1976-11-01), Beddome
patent: 4205056 (1980-05-01), Inokuchi et al.
patent: 4393039 (1983-07-01), Sherman
patent: 4474592 (1984-10-01), Kundig
patent: 4477413 (1984-10-01), Carson
patent: 4671080 (1987-06-01), Gross
patent: 4765813 (1988-08-01), Gaumer, Jr. et al.
patent: 5154062 (1992-10-01), Gaumer, Jr. et al.
patent: 5305610 (1994-04-01), Bennett et al.
patent: 5374476 (1994-12-01), Horsley

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