Waste gas purification reactor and method

Patent · Tue Jul 07 04:00:00 EDT 1981

OSTI ID:5721475

Aiken, J E; Didycz, W J

A device and method for removing dissolved organic acids from entrained liquid droplets in a waste gas stream are comprised of (1) heating the liquid droplets in the waste gas stream to the vaporization temperature, and (2) contacting the waste gas stream with a collecting means whereby the dissolved organic acids are deposited on the means of evaporization of the liquid droplets to thereby produce the heated gas stream substantially free of the liquid droplets. Additionally, the invention preferably relates to a reactor and method additionally comprising the steps of (1) introducing the waste gas stream having the dissolved organic acids removed through an inlet into a chamber containing a catalyst bed for oxidizing the pollutants, (2) passing the waste gas stream through a distributor plate containing a multiplicity of holes located between the inlet and the catalyst bed in a manner such that the waste gas is substantially uniformly distributed over the catalyst bed, (3) passing the waste gas through the catalyst bed while maintaining the catalyst bed at a temperature sufficient to sustain catalytic oxidation of the oxidizable pollutants, and (4) withdrawing through an outlet of the chamber the waste gas stream which has passed through the catalyst bed. Additionally, it is preferred that the method includes the step of removing the deposited organic acids from the above mentioned collecting means. The collecting means is preferably in the form of a thin fin parallel tube heat exchanger.

• Assignee: United States Steel Corp
• Patent Number(s): US 4277453
• OSTI ID: 5721475
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION CONTROL
CATALYSTS
CHEMICAL REACTIONS
CONTROL
DESIGN
EQUIPMENT
EVAPORATION
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HEAT EXCHANGERS
HYDROCARBONS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDATION
PHASE TRANSFORMATIONS
PLATES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
PURIFICATION
WASTES