A new, safer method of sulfur degassing

Journal Article · Tue Oct 01 00:00:00 EDT 1985 · Chem. Eng. Prog.; (United States)

OSTI ID:6305213

Schico, C M; Clem, K R; Hartley, D; Watson, E A

The Exxon system for degassing liquid sulfur is presented, and it can reduce total H2S in liquid sulfur to levels as low as 10-15 wppm under the commercial conditions tested. Because Exxon found commercially available mechanical degassing systems to be inadequate, the Claus plant initiated an RandD program to develop the new degassing process. Hydrogen sulfide and hydrogen polysulfide are inherent to the Claus process. The major concerns associated with this H2S in the Claus liquid sulfur include: toxic levels of H2S are possible while loading/unloading liquid sulfur; the H2S lower explosive limit in air can be exceeded in unvented pit/tank vapor space; nuisance odors/environmental concerns; and potential government regulations/ customer restrictions. Results are presented in this article of successful commercial tests using the process at five sites.

• Research Organization: Exxon Research and Engineering Co., Florham Park, N.J.
• OSTI ID: 6305213
• Journal Information: Chem. Eng. Prog.; (United States), Vol. 81:10
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
HYDROGEN SULFIDES
REMOVAL
SULFUR COMPOUNDS
DEGASSING
DESULFURIZATION
CLAUS PROCESS
COMBUSTION PROPERTIES
COMMERCIALIZATION
ENVIRONMENTAL IMPACTS
LIQUIDS
PERFORMANCE TESTING
QUALITY ASSURANCE
RESEARCH PROGRAMS
SAFETY STANDARDS
SEPARATION EQUIPMENT
CHALCOGENIDES
CHEMICAL REACTIONS
FLUIDS
HYDROGEN COMPOUNDS
STANDARDS
SULFIDES
TESTING
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)