Restoring reactivity of gas sweetening oxide beds

Details Restoring reactivity of gas sweetening oxide beds Restoring reactivity of gas sweetening oxide beds

1992-05-04

1993-11-23

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

4232421, 42324401, 42324402, 42324403, 4232441, C01B 1716

Patent

active

052641945

ABSTRACT:
Non-hydrated iron oxides utilized in moistened permeable beds to react hydrogen sulfide present in natural gas do not totally lose their reactivity when the beds give up their moisture to dry gas. Lessening of their reactivity attendant to dryness is signalled by a rise in H.sub.2 S level in the gas at or somewhat in advance of the reactor outlet. On such signal water is injected into the inflowing gas stream, reviving the bed's reactivity and permitting continuation of gas sweetening until the reactive potential of the oxide is substantially fully utilized, with minimal water addition.

REFERENCES:
patent: 1816533 (1931-07-01), Huff et al.
patent: 4142994 (1979-03-01), Alafandi
patent: 4246244 (1981-01-01), Fox

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