Patent ID: 9295941
Filing Date: 2016-03-29
CPC Classification: B01D,G21F

Claim Text:
1. A method for filtering gas effluents from an industrial installation comprising the following steps: providing from an industrial installation a gas effluent comprising a mixture of gases; filtering harmful elements from the gas effluent by sifting, sorption and/or diffusion membrane separation through a plurality of membranes each with a tubular geometry, an inner wall, an outer wall, pores varying in dimension radially and axially, and dimensions of the pores decreasing in the direction of effluent gas flow, with each membrane filtering a specific harmful element of the harmful elements to obtain filtered specific harmful elements and processed gas effluent with a purification coefficient greater than 100; sorting the filtered specific harmful elements and storing the filtered specific harmful elements in separate storage reservoirs; and discharging the processed gas effluent.