Separation techniques: sulfur recovery from low hydrogen sulfide gases

Journal Article · Fri Oct 01 04:00:00 EDT 1982 · Chem. Eng. Prog.; (United States)

OSTI ID:6492908

Chute, A E

Processes are described for recovering sulfur from acid gases containing less H/sub 2/S than can be processed satisfactorily in a typical Claus sulfur recovery unit. A previous work discussed several problems related to unusual conditions encountered in the design and operation of the modified Claus sulfur process for the conversion and recovery of elemental sulfur from gases containing H/sub 2/S. Many of these unusual conditions are related to contaminants in the acid gas feed such as ammonia, hydrocarbons and excessive water vapor, and to a low concentration of H/sub 2/S in the acid gas feed. Numerous conditions have created interest in low H/sub 2/S feed, including the many synthetic fuel projects that include processing of shale oil, coal conversion products, heavy oils, and tar sands. The need for efficient sulfur recovery is further spurred by higher energy costs, stricter environmental controls, and the need to process oils with ever-increasing sulfur content. One feature of the Recycle Selectox Process is that the circulating gas acts like a flywheel to maintain steady operating conditions, even when the acid gas feed fluctuates.

• OSTI ID: 6492908
• Journal Information: Chem. Eng. Prog.; (United States), Journal Name: Chem. Eng. Prog.; (United States) Vol. 78:10; ISSN CEPRA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
02 PETROLEUM
020400 -- Petroleum-- Processing
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
04 OIL SHALES AND TAR SANDS
040404 -- Oil Shales & Tar Sands-- Purification
BITUMENS
CHALCOGENIDES
CHEMICAL REACTIONS
CLAUS PROCESS
COAL GAS
COAL LIQUIDS
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
LIQUIDS
MINERAL OILS
NONMETALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
QUANTITY RATIO
RECOVERY
SEPARATION PROCESSES
SHALE OIL
SULFIDES
SULFUR
SULFUR COMPOUNDS
SYNTHETIC FUELS
SYNTHETIC PETROLEUM
TAR
TECHNOLOGY ASSESSMENT
VISCOSITY