Chemistry of inorganic compounds – Sulfur or compound thereof – Elemental sulfur
Patent
1983-07-29
1984-11-20
Thomas, Earl C.
Chemistry of inorganic compounds
Sulfur or compound thereof
Elemental sulfur
423576, C01B 1704
Patent
active
044838441
ABSTRACT:
A three catalytic reactor system and process is disclosed for obtaining acceptable levels of sulfur recovery from acid gas at a cost significantly less than that required for a standard modified four reactor cold bed adsorption (CBA) system. The system and process utilize two conventional Claus reactors and one cold bed adsorption (CBA) reactor in series. Four condensers are provided, one disposed before each of the catalytic reactors and one on a process line connecting the third catalytic (CBA) reactor to the first catalytic reactor. The system is designed to operate either in a normal adsorption mode or in a regeneration mode. In the normal adsorption mode, the second Claus reactor is operated at a closer sulfur dewpoint approach then the second Claus reactor in the standard CBA system. In the regeneration mode, gas downstream of the thermal reactor is directed first to the second Claus reactor and then, after removal of sulfur and reheating, to the CBA reactor. Thus, the second and third catalytic reactors are regenerated simultaneously. The first catalytic reactor is placed on cold bed adsorption during the regeneration mode. Effluent from the first catalytic reactor is then passed through the second condenser and to the tail gas stack.
REFERENCES:
patent: Re28830 (1976-05-01), Hunt, Jr. et al.
patent: 2767062 (1956-10-01), Duecker
patent: 3749762 (1973-07-01), Montgomery
patent: 4035474 (1977-07-01), Kunkel et al.
patent: 4180554 (1979-12-01), Goddin, Jr. et al.
patent: 4309402 (1982-01-01), Al-Muddaris
patent: 4315904 (1982-02-01), Lell et al.
"MCRC Process for Improving Claus Plant Recovery", A. B. Coady, 6-9-1976: Presented to Canadian Natural Gas Processors' Association.
"MAXISULF-A Process to Enhance Sulfur Recovery in Claus Plants", R. Lell and U. Neumann, Davy McKee AG.
"The MCRC Sub-Dewpoint Sulphur Recovery Process", R. E. Heigold and D. E. Berkeley, Delta Projects Limited.
Russel Jeffrey E.
Standard Oil Company (Indiana)
Thomas Earl C.
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