Process and pollution-treatment particulate material for effecting removal of sulfur oxide gases from stack gases

Patent · Tue Sep 11 00:00:00 EDT 1984

OSTI ID:6206264

Lin, P W

A solid pollution-treatment product consisting of a core material of lime, quicklime or hydrated lime. The core is surrounded by a cracked shell formed of either calcium sulfate or calcium carbonate, such materials being referred to in this and prior applications of inventor by the coined terms ''Linfans'' and ''Linveins'', respectively. The described particulate material is particularly reactive to sulfur oxide bearing gases. REactivity of such core material is even further enhanced by increasing its porosity through hydration and used in either the hydrated form or a selectively, partially or wholly dehydrated form before exposure to the sulfur oxide pollutants intended to be removed from flue gas or the like.

• Assignee: EDB-85-014990
• Patent Number(s): US 4470921
• OSTI ID: 6206264
• Resource Relation: Patent File Date: Filed date 4 Aug 1982; Other Information: PAT-APPL-405242
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
42 ENGINEERING
FLUE GAS
DESULFURIZATION
LIME-LIMESTONE WET SCRUBBING PROCESSES
ABSORPTION
AIR POLLUTION CONTROL
CALCIUM CARBONATES
CALCIUM SULFATES
DEHYDRATION
GRANULAR MATERIALS
POLLUTION CONTROL EQUIPMENT
PROCESS CONTROL
SULFUR OXIDES
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
EQUIPMENT
GASEOUS WASTES
MATERIALS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SCRUBBING
SULFATES
SULFUR COMPOUNDS
WASTES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
424000 - Engineering- Pollution Control Equipment- (1980-1989)