Process for the removal and concentration of a component gas from a multi-gaseous stream

Patent · Sat Apr 01 04:00:00 EST 1972

OSTI ID:6199441

Hunter, W L

A process and related system are described for the removal and concentration of a component gas from a stream containing a number of gaseous components. The process is directed to the removal and subsequent concentration of a gas stream component in which the component exists as a particularly small percentage (as low as 1% or less) of the total stream volume. It is especially appropriate for the removal and concentration of organic and inorganic sulfur gases, such as hydrogen sulfide or sulfur dioxide from effluent acid gas streams. The system is of the regenerative liquid solvent type using an absorber tower and subsequent solvent fractionator. The component gas is absorbed under closely controlled pressure and temperature conditions. In the case of hydrogen sulfide, the solvent used is preferably N-methyl-2-pyrrolidone which, when saturated is passed to the fractionator column where the hydrogen sulfuide is released due to a controlled increase in temperature and reductionreaction mechanism could be the existence, ahead of the hydorfluoric acid front, of a ures which might control the distribution of uraniumacterized by a thermally activated process. he effect of various parameters, temperature, pressure, and steam percent in hydrogen feed. Fifteen experimental runs have been completed using NiMo as the main component of thThe Q/sub 2//sup +/ value obtained for /sup 200/Hg is in agreement with previous work, but that for /sup 202/Hg is not. The results obtained are compared with the predictions of various nuclear models, and the mass dependence of Q/sub 2//sup +/ in the region 182 < A < 206 is examined.

• Assignee: Ashland Oil Inc.
• Patent Number(s): US 3656275
• OSTI ID: 6199441
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
&amp; Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ABSORPTION
AMINES
AZOLES
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
NATURAL GAS
NONMETALS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PYRROLES
PYRROLIDINES
REMOVAL
SEPARATION PROCESSES
SULFIDES
SULFUR
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
WELLS