The present invention provides a dust removal system for a chimney of a mixer. The system includes a dust removal water tank and a first pipeline. One end of the first pipeline is communicated with an outlet of the chimney at a tail of the mixer, and the other end is inserted into the dust removal water tank. A water inlet and a water outlet are provided in the dust removal water tank. An exhaust port for discharging filtered gas is provided in an upper part of the dust removal water tank. The system does not need additional power, and is energy-saving and environmentally friendly. Water vapor discharged facilitates the sedimentation of dust particles in the mixer, thereby reducing loss of raw material mixture, making sintering quality more stable and solving a problem that gas discharged in prior arts contains more powder and pollutes the environment.

The present invention relates to a method for conditioning a soot-containing syngas stream in a single integrated apparatus containing a scrubbing vessel wherein particulate matter is decoupled from the waste water stream.

There is provided an active coke regeneration mixed vapor treatment method. The method comprises the following process steps of: A) performing a first water condensation on a mixed vapor produced during an active coke regeneration process by spray water in a first condensation zone; B) performing a second water condensation on the mixed vapor that is after the first water condensation by spray water in a second condensation zone, to further condensate and purify the mixed vapor; C) eliminating moisture in a gas through mist elimination from the gas fraction in the mixed vapor that is after the second water condensation, and discharging the remaining gas from the upper of the second condensation zone; and, D) discharging active coke micro powder in the mixed vapor that is after the second water condensation, with condensation water. In the present invention, an apparatus for implementing the abovementioned method is also provided.

Methods, apparatus, and compositions for cleaning gas. The use of segmented multistage ammonia-based liquid spray with different oxidation potentials to remove sulfur compounds from gas. The use of different oxidation potentials may reduce unwanted ammonia slip.

Methods, apparatus, and compositions for cleaning gas. The use of segmented multistage ammonia-based liquid spray with different oxidation potentials to remove sulfur compounds from gas. The use of different oxidation potentials may reduce unwanted ammonia slip.

The present invention relates to a method for treatment of a hot gas generated by a pyrolysis or a gasification process, wherein the hot gas is passed to a first unit for particle removal and cooling, whereby subsequently, a gaseous stream is removed from a first condensed stream thus obtained and passed to a second unit for particle removal and cooling, wherein a second condensed stream is obtained, said first condensed stream and second condensed stream being recycled to said first unit and said second unit, respectively.

A scrubber system for removing odorous and/or harmful gases from polluted gases/air comprising a scrubber body, a blower to supply the polluted gas into the scrubber body under pressure enabling the supplied polluted gas to travel from lower portion of the scrubber body to upper portion of the scrubber body and one or more diffraction units provided with supply of wash solution accommodated inside of the scrubber body and disposed in pathway of the polluted gas within the scrubber body to diffract the polluted gases/air with the wash solution thereby to clean the polluted gases/air and discharge clean gases/air through a scrubber body outlet at its top.

A scrubber system for removing odorous and/or harmful gases from polluted gases/air comprising a scrubber body, a blower to supply the polluted gas into the scrubber body under pressure enabling the supplied polluted gas to travel from lower portion of the scrubber body to upper portion of the scrubber body and one or more diffraction units provided with supply of wash solution accommodated inside of the scrubber body and disposed in pathway of the polluted gas within the scrubber body to diffract the polluted gases/air with the wash solution thereby to clean the polluted gases/air and discharge clean gases/air through a scrubber body outlet at its top. Each of diffraction units includes one or more modularly configurable diffraction plate having an assembly of spaced apart a perforated upper plate and a perforated lower plate wherein each said perforated upper plate and said perforated lower plate having plurality of passing holes on their planer surface and assembled one over the other enabling said passing holes in the perforated upper plate and the perforated lower plate are disposed in a zigzag pattern, whereby the polluted gases/air while moving upwards and upon contact with said wash solution in said diffraction unit while passing through said passing holes in said perforated upper and lower plates of said diffraction unit generate swirl bubbles within the wash solution under pressure of said polluted air/gases moving upwards for maximizing contact with said polluted gases/air and efficient cleaning of the polluted gases/air for release of clean gases/air through the scrubber body outlet.

The present invention provides an apparatus for the treatment of exhaust gas from diesel engine or other combustion type processes, the apparatus comprising liquid and Ozone gas injection means (2) and (3) respectively, for delivering the liquid and Ozone gas into a pressurised exhaust gas stream pipe (1) when the diesel engine or other type internal combustion processes are in use. The liquid and the Ozone gas commingle as the liquid is reduced to a spray of very fine droplets in order to capture sub micron particulate materials before entering a shortened reaction/contacting chamber (4) where the contents undergo a phase change before exiting and entering a gas liquid separator (5) where the liquid droplets are separated from the treated particulate materials, which are subjected to a scrubbing regime in a downstream scrubber (11) before exiting the apparatus through an exit pipe (7). When in use, the apparatus uses the diesel engine or other combustion type process pressure to create high velocities and Reynolds numbers in the shortened reaction/contacting chamber (4) in which NOx is rapidly mixed and reacted with the injected Ozone gas and converted through to N.sub.2O.sub.5 and wherein the sub micron particulate materials, with condensed hydrocarbons, are simultaneously wetted and efficiently captured by the injected and finely sheared liquid droplets.

A liquid film dust arrester is installed to face a gas flow containing dust and flowing out from a gas discharge pipe. The arrester includes a gas flow blocking unit arranged vis--vis the gas flow, a liquid dispersion unit having a dispersion section arranged at a position near the center of the gas flow blocking unit and upstream relative to the gas flow blocking unit as viewed in the flowing direction of the gas flow so as to face the gas flow blocking unit, a liquid ejection unit having an ejection port disposed vis--vis the dispersion section and configured to eject liquid from the ejection port, and a liquid film forming unit. The dispersion section comprises a smooth surface that causes the ejected liquid to flow and disperse on the smooth surface, and the liquid film is formed to face the gas flow flowing through the flow path.