Process and apparatus for degassing sulfur

Patent · Tue Mar 08 00:00:00 EST 1988

OSTI ID:5023429

Pendergraft, P T

A process for converting hydrogen polysulfide to hydrogen sulfide in liquid sulfur and for removing hydrogen sulfide from liquid sulfur is described comprising: passing liquid sulfur containing hydrogen polysulfide and hydrogen sulfide to a first zone of a three zone treating system comprising adjacent first, second, and third zones with fluid communication means between adjacent zones; continuously passing the liquid sulfur from the first zone to a lower portion of the adjacent second zone; recirculating liquid sulfur passed through the catalyst containing zone into the lower portion of the second zone by recirculation means responsive to sulfur level, with increasing amounts of liquid sulfur being recirculated as the depth of liquid sulfur increases in the second zone; introducing a sparging gas into the lower portion of the second zone and circulating liquid sulfur from the lower portion of the second zone through the catalyst containing zone; continuously passing liquid sulfur with a reduced hydrogen polysulfide and hydrogen sulfide content from the second zone over an adjustable weir of variable height to the adjacent third zone, and removing liquid sulfur from the third zone and removing hydrogen sulfide from the treating system.

• Assignee: Amoco Corp., Chicago, IL
• Patent Number(s): US 4729887
• OSTI ID: 5023429
• Resource Relation: Patent File Date: Filed date 16 Aug 1985
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HYDROGEN SULFIDES
REMOVAL
SULFUR
DEGASSING
CATALYSTS
CHEMICAL REACTORS
DESULFURIZATION
GAS FLOW
LIQUID FLOW
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
FLUID FLOW
HYDROGEN COMPOUNDS
NONMETALS
SULFIDES
SULFUR COMPOUNDS
400201* - Chemical & Physicochemical Properties