Guard bed containing lead compounds upstream of a bed of...

Details Guard bed containing lead compounds upstream of a bed of... Guard bed containing lead compounds upstream of a bed of...

2006-08-29

2006-08-29

Wood, Elizabeth D. (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C502S345000

Reexamination Certificate

active

07098167

ABSTRACT:
A combination comprising a bed of a particulate copper-containing catalyst and, a guard bed of a particulate composition containing a) lead and/or at least one lead compound that reacts with hydrogen chloride and b) a support therefor. The lead compound is preferably lead nitrate. The combination is of particular utility for the low temperature shift reaction wherein carbon monoxide is reacted with steam to produce hydrogen and carbon dioxide.

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patent: 4849576 (1989-07-01), Nowack et al.
patent: 4849577 (1989-07-01), Boitiaux
patent: 5120511 (1992-06-01), Luft
patent: 2004/0072682 (2004-04-01), Watson
patent: 0145288 (1985-06-01), None
patent: 1357335 (1974-06-01), None

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