Absorption of pollutant material from a polluted gas

Patent · Tue Feb 26 00:00:00 EST 1985

OSTI ID:5502981

Ashley, M J; Hemphill, P D; Leivo, Ch C

In a method of absorbing pollutant material e.g. sulphur dioxide from a polluted gas, an aqueous suspension of a solid absorbent e.g. calcium hydroxide is sprayed into the gas; and the ambient conditions in the gas are such that all the water is evaporated and the absorption product is dried as it is formed. The spray droplet size is controlled to be a practical maximum consistent with maintaining the ambient conditions. The spray droplet size may be so controlled that the arithmetical average spray droplet lifetime is at least 80% of the theoretical maximum spray droplet lifetime consistent with maintaining the ambient conditions.

• Assignee: Dresser Industries Inc.
• Patent Number(s): US 4501722
• OSTI ID: 5502981
• Resource Relation: Patent Priority Date: Priority date 18 Feb 1983, United Kingdom of Great Britain and Northern Ireland (UK); Other Information: PAT-APPL-468270
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
54 ENVIRONMENTAL SCIENCES
GASEOUS WASTES
ADSORBENTS
AIR POLLUTION CONTROL
DESULFURIZATION
SULFUR DIOXIDE
REMOVAL
CALCIUM HYDROXIDES
DROPLETS
DRYING
SPRAYS
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
HYDROGEN COMPOUNDS
HYDROXIDES
OXIDES
OXYGEN COMPOUNDS
PARTICLES
POLLUTION CONTROL
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES
020800* - Petroleum- Waste Management
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)