Hydrogen and sulfur recovery from hydrogen sulfide wastes

Patent · Fri Jan 01 04:00:00 EST 1993

OSTI ID:868784

Harkness, John B. L. ^[1]; Gorski, Anthony J ^[2]; Daniels, Edward J ^[3]

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1. Naperville, IL
2. Woodridge, IL
3. Oak Lawn, IL

A process for generating hydrogen and elemental sulfur from hydrogen sulfide waste in which the hydrogen sulfide is associated under plasma conditions and a portion of the hydrogen output is used in a catalytic reduction unit to convert sulfur-containing impurities to hydrogen sulfide for recycle, the process also including the addition of an ionizing gas such as argon to initiate the plasma reaction at lower energy, a preheater for the input to the reactor and an internal adjustable choke in the reactor for enhanced coupling with the microwave energy input.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: University of Chicago (Chicago, IL)
• Patent Number(s): US 5211923
• OSTI ID: 868784
• Country of Publication: United States
• Language: English

Related Subjects

/423/204/
addition
adjustable
argon
associated
catalytic
catalytic reduction
choke
conditions
containing impurities
convert
coupling
elemental
elemental sulfur
energy
energy input
enhanced
gas
generating
generating hydrogen
hydrogen
hydrogen sulfide
impurities
including
initiate
input
internal
ionizing
ionizing gas
microwave
microwave energy
output
plasma
plasma conditions
plasma reaction
portion
preheater
process
reaction
reactor
recovery
recycle
reduction
reduction unit
sulfide
sulfide waste
sulfur
sulfur recovery
sulfur-containing
unit
waste
wastes
wave energy