Apparatus for closed cycle hydrogenation recovery and rehydrogen

Details Apparatus for closed cycle hydrogenation recovery and rehydrogen Apparatus for closed cycle hydrogenation recovery and rehydrogen

1992-11-25

1994-10-11

Roy, Upendra

Metallurgical apparatus

Means treating solid metal

By contact with gas

420900, B22F 100, C01B 600

Patent

active

053540409

ABSTRACT:
The present invention presents a method and an apparatus for heat treating a metallic material by performing hydrogen absorption in or desorption from the metallic material. The method includes the steps of recovering the hydrogen gas released from a desorption step and recycling it to a hydrogen absorbing step. Hydrogen recovering can be performed either in a device containing a hydrogen absorbing alloy or in a second heat treating furnace containing the metallic material. Various controlling devices are used to regulate the process of heat treating and recovering of hydrogen gas.

REFERENCES:
patent: 4215008 (1980-07-01), Hagiwara et al.
patent: 4360505 (1982-11-01), Sheridan, III et al.
patent: 4490348 (1984-12-01), Mizuno et al.
patent: 4769225 (1988-09-01), Reilly et al.
patent: 4832913 (1989-05-01), Hong et al.
patent: 4839085 (1989-06-01), Sandrock et al.
patent: 5122338 (1992-06-01), Wallace et al.

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