2results about How to "Improve gas quality" patented technology

This invention discloses an activated coke production tail gas treatment system and method. The tail gas treatment system includes a dust removal unit, a tar removal unit, and a heat exchange unit. The dust removal unit removes dust from the tail gas. The inlet of the tar removal unit is connected to the outlet of the dust removal unit via a first pipeline, and a first valve is installed on the first pipeline. The hot-side inlet of the heat exchange unit is connected to the outlets of the dust removal unit and the tar removal unit via second and third pipelines, respectively, and a second valve is installed on the second pipeline. The hot-side outlet of the heat exchange unit is connected to an oil storage tank and a desulfurization and denitrification unit via fourth and fifth pipelines, respectively, and a third valve is installed on the fourth pipeline and a fourth valve is installed on the fifth pipeline. The activated coke production tail gas treatment system of this invention can select different tail gas treatment paths according to different tail gas composition characteristics and actual needs, resulting in clean and efficient operation.

The utility model belongs to the technical field of gas filtering devices, and particularly relates to a high-pressure gas filtering system which comprises a first-stage filtering cylinder, a second-stage filtering cylinder and a third-stage filtering cylinder group which are connected with one another, the first-stage filtering cylinder is a wet filter filled with filtering liquid, the second-stage filtering cylinder is an agglomerated filter, and the third-stage filtering cylinder group is a wet filter filled with filtering liquid. The third-stage filter cartridge group comprises a plurality of third-stage filter cartridges which are connected in series, and the third-stage filter cartridges are adsorption filters. The filtering system disclosed by the utility model has the advantages that the filtering is efficient, the air quality is improved, and various impurities in the compressed air are purified step by step through a three-stage filtering mechanism of the first-stage filtering cylinder (wet filter), the second-stage filtering cylinder (condensation filter) and the third-stage filtering cylinder group (adsorption filter). Dust and oil mist particles with the size being 5 micrometers or above are removed through first-stage filtration, liquid water and oil are treated through second-stage filtration, residual oil water vapor and peculiar smell are further removed through third-stage filtration, the quality of compressed air is remarkably improved, and reliable quality guarantee is provided for compressed air for breathing.