Temperature control of a selective hydrogenation process

Details Temperature control of a selective hydrogenation process Temperature control of a selective hydrogenation process

1981-06-30

1983-01-04

Gantz, Delbert E.

Chemistry of hydrocarbon compounds

Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...

Hydrocarbon is contaminant in desired hydrocarbon

260690, 260698, 260700, 364500, 364557, 422 62, 585263, 436134, 436142, C07C 503, C07B 100

Patent

active

043673546

ABSTRACT:
In a selective hydrogenation process wherein at least two catalyst beds in series are utilized, the temperature of the feed stream flowing to the first catalyst bed and the temperature of the feed stream flowing from the first catalyst bed to the second catalyst bed are controlled using a combination of feed forward and feed back control. The feed forward control is based on the change in a process variable during a specified period of time. The feed back control is based on a comparison to the actual concentration of acetylene in the product stream flowing from the second catalyst bed to the desired concentration of acetylene in the product stream flowing from the second catalyst bed.

REFERENCES:
patent: 3471582 (1967-11-01), Lupfer
patent: 3656911 (1972-04-01), Hobbs
patent: 4234410 (1980-11-01), Kelley
patent: 4236219 (1980-11-01), Killebrew, Jr. et al.
patent: 4249908 (1981-02-01), Funk
patent: 4251674 (1981-02-01), Callejos et al.

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