Lone Star Steel Company, L.p.

Global Clean Air, Inc.

Aerological Research Systems, Inc.

Thomas K Ewan

Malley R Bass

Orvis L Holland

James L Frier

James Leake Frier, Jr

Thomas W Musslewhite

Adel Hedfi

Thomas J Weber

Charles R Barden

Heather E Cole

James C Moore

Mark R Jacubec

Jennings D Means

Pollutant molecules and/or particles are removed from a stream of polluted gas utilizing moisture-containing sonic or supersonic shock waves passing through the stream of polluted gas stream to alter, change, modify, grow or otherwise change the molecules and/or particles to render then removable or separable from the gas stream.

System, process and apparatus for removal of pollutants from gaseous streams

A process for the removal of acidic gases from carrier gases employing a finely divided alkaline sorbent material is disclosed. The process includes, optionally, the step of conditioning the carrier gas to lower its temperature. The process comprises introducing a stream containing the alkaline sorbent material and mixing the alkaline sorbent material and the carrier gas, introducing a stream of vapor and liquid droplets and mixing the stream of vapor and liquid droplets with the stream of carrier gas containing the alkaline sorbent material. Thereafter a portion of the vapor is condensed and the alkaline sorbent material reacted with the acid gases to form products of reaction. Finally, the products of reaction and the remaining alkaline sorbent material are separated from the carrier gas stream. Preferably, the alkaline sorbent material is calcium based, e.g., calcium hydroxide or calcium carbonate and the vapor and liquid droplets comprise low pressure steam and water, respectively. The mixing process is facilitated by a free jet nozzle operated with a low pressure drop across the nozzle. The separation step may be formed in a fabric filter (baghouse) or an electrostatic precipitator.

Process for the dry removal of polluting material from gas streams

A process and apparatus is disclosed for the removal of pollutant material including solid or liquid particulate matter and gaseous pollutants from gas streams in which the gas is driven through a mixing tube by forming a jet of a compressible fluid such as steam or air or the whole or a part of the polluted gas itself. In some instances the jet acts as an ejector to induce flow of the polluted gas into the mixing tube but when all of the polluted gas is formed into a jet it is directed into the mixing tube without any ejector action. A mechanically atomized liquid is introduced into the outer region of the jet of compressible fluid emerging from the nozzle in which the jet is formed. The mechanically atomized liquid is further atomized by the shearing action of the jet to form high velocity droplets which are intimately and turbulently mixed with the pollutant-containing gas and retained in the mixing tube for a sufficient time so that the pollutants become entrained with the water droplets. The turbulent mixture is then directed into a diffuser having an increasing cross-sectional area and deflected as it enters the diffuser away from one portion of the interior surface of the diffuser and toward an opposite portion of the interior surface of the diffuser and also decelerated so as to cause a separation in the flow of the liquid and non-liquid constituents of the mixture. Apparatus is disclosed including a compressible fluid nozzle for forming the jet and a liquid injector, a mixing tube, a diffuser, and fluid and mechanical separating means whereby a separate flow of the particulate material including submicronic sized particulate entrained in liquid droplets is established in the diffuser for removal from the cleaned gas stream. If it is desired to remove reactive gaseous pollutants from a gas stream, appropriate chemical reagents may be added to the injected liquid or directly to the gas stream prior to treatment.

Apparatus and process for the removal of pollutant material from gas

Growing community of inventors

Daingerfield, TX, United States of America

Thomas K Ewan