Removal of hydrogen selenide
Patent
·
OSTI ID:6435808
This patent describes a process for removal of hydrogen selenide from a liquid stream which comprises treating a stream of solvent selected from the group consisting of (tertiary) amines, aminoalcohols, glycols, glycol ethers, sulfones, sulfoxides, N-heterocyclics, amides or mixtures thereof, with a heavy metal non-selenide salt to precipitate the hydrogen selenide as a heavy metal selenide. A process for the purification of a gas stream containing hydrogen selenide and acidic gases which comprises (1) contacting the gas stream with an aqueous scrubbing solution to remove at least a part of the hydrogen selenide; (2) contacting the scrubbing solution with a heavy metal non-selenide salt to precipitate hydrogen selenide as a heavy metal selenide salt; and (3) treating the gas stream from (1) with a liquid solvent for the absorption of acidic gases.
- Assignee:
- Shell Oil Co., Houston, TX
- Patent Number(s):
- US 4790945
- OSTI ID:
- 6435808
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ALCOHOLS
AMIDES
AMINES
DEMETALLIZATION
ENERGY SOURCES
ETHERS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GLYCOLS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
NATURAL GAS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
PRECIPITATION
REMOVAL
SELENIUM COMPOUNDS
SELENIUM HYDRIDES
SEPARATION PROCESSES
SOLVENTS
SULFONES
SULFOXIDES
020400* -- Petroleum-- Processing
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ALCOHOLS
AMIDES
AMINES
DEMETALLIZATION
ENERGY SOURCES
ETHERS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GLYCOLS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
NATURAL GAS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
PRECIPITATION
REMOVAL
SELENIUM COMPOUNDS
SELENIUM HYDRIDES
SEPARATION PROCESSES
SOLVENTS
SULFONES
SULFOXIDES