TOXIC GAS CONDENSATION AND RETREATMENT SYSTEM

摘要

Apparatuses and systems for reduction and elimination of toxic gases emitted from a motor vehicle or industrial exhaust system. The systems may be single-tier or two-tier, and include at least one direct contact heat exchanger wherein exhaust gas is condensed or dissolved in cold moist air vapor. Uncondensed and undissolved gases may be recirculated into the direct contact heat exchanger to be treated again. The systems also include at least one post-treatment tank wherein condensate liquids and gas solutions are subject to agglomeration and are finally discharged into the environment as a clean liquid. The systems provided herein may complement the existing catalytic converters used in motor vehicles.

主权项

1. An exhaust system for eliminating toxic gases from a gaseous exhaust stream comprising:
an exhaust line in fluid connection with a direct contact heat exchanger comprising a mixing chamber containing a plurality of nozzles spraying cold moist air vapor and at least two horizontal strips positioned at different vertical levels inside the chamber; a recirculation line in fluid connection with the direct contact heat exchanger; and a post-treatment tank that is in fluid connection to the direct contact heat exchanger containing a holding reservoir and at least one injection device; wherein the nozzles are configured to spray cold moist air vapor in a sufficient amount to at least partially condense and dissolve the toxic gases; wherein the recirculation line is configured to recirculate remaining toxic gases into the direct contact heat exchanger to condense or dissolve in the cold air and water vapor; and wherein the post-treatment tank is configured to agglomerate condensed and dissolved toxic gases.