Lin flue gas SO sub x /NO sub x removal process and its by-product utilization

Patent · Tue Jan 28 04:00:00 EST 1992

OSTI ID:5347282

Lin, P W

This patent describes an improved process for effecting the efficient desulfurization of gases containing sulfur oxide. It comprises transmitting flue gas containing sulfur oxides gases through ductwork means, subjecting the flue gas to one of increasing the temperature of the flue gas through gaseous interaction and subjecting the flue gas to thermal radiator means, in order to effect a rapid and positive time rate of temperature change so that sulfur dioxide in the flue gas is converted to sulfur trioxide, passing the sulfur trioxide rich flue gas to a reactor and providing a calcium containing reactant to the reactor, continuously emitting a desulfurized exit gas from the reactor and transmitting the desulfurized exit gas to an exit.

• Assignee: NOV; EDB-92-093643; NOV-92-024066
• Patent Number(s): A; US 5084258
• Application Number: PPN: US 7-569173
• OSTI ID: 5347282
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ALKALINE EARTH METALS
BY-PRODUCTS
CALCIUM
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMICAL REACTORS
DENITRIFICATION
DESULFURIZATION
DUCTS
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUE GAS
GASEOUS WASTES
METALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
REMOVAL
SULFUR COMPOUNDS
SULFUR OXIDES
THERMAL RADIATION
WASTES