Method of producing an activated alumina Claus catalyst

Details Method of producing an activated alumina Claus catalyst Method of producing an activated alumina Claus catalyst

1980-07-21

1982-12-21

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

423628, B01J 2104

Patent

active

043648584

ABSTRACT:
An improved Claus catalyst is provided in the form of activated alumina in which sodium oxide concentration, LOI and surface area of the catalyst are carefully controlled to achieve increased sulfur conversion. Sulfur recovery is enhanced by choosing an alumina catalyst having properties which minimize chemisorption of sulfur dioxide on the catalyst at reaction conditions. Sodium oxide may be present in an amount of 0.1 to 2.5 wt % of the catalyst (1100.degree. C. calcined basis). The catalyst desirably has a surface area greater than 100 m.sup.2 /g (BET) and an LOI (hydroxyl content as determined by heating from 400.degree. to 1100.degree. C.) between 2.0 and 6.0 wt %. A method of producing the catalyst and a method of using the catalyst are also provided.

REFERENCES:
patent: 3725531 (1973-04-01), Pearson et al.
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patent: 3978004 (1976-08-01), Daumas et al.
patent: 4051072 (1977-09-01), Bedford et al.
patent: 4054642 (1977-10-01), Daumas et al.
patent: 4141962 (1979-02-01), Dupuy et al.
Pechiney-Saint-Gobain, Product Data on DR Catalyst.
Kaiser Chemicals Product Data on S-501 Alumina.
Kaiser Chemicals Product Data on S-201 Alumina.
Kaiser Chemicals Product Data on S-701 Alumina.

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