US 3,944,402 A · Air pollution control apparatus and process

Abstract

Pollution control apparatus is provided for use in scrubbing a gas, which is normally vented to the atmosphere, with a liquid, which apparatus embodies in one unit a section to remove solid particulates and entrained liquid from the gas, as well as a packed tower scrubbing section for removing noxious gaseous components from the gas. The apparatus is comprised of an outer shell; and an inner shell disposed within and spaced from the outer shell, the inner shell defining an inner contact zone and the space between the inner shell and the outer shell defining an outer contact zone; liquid feed means for introducing liquid into the inner contact zone; gas feed means for introducing a gas into contact with the liquid in the inner contact zone and for introducing the gas into the outer contact zone; outlet means for liquid; and outlet means for processed gas. The inner contact zone preferably includes a packing material. In addition, a process for scrubbing of a gas with a liquid is provided wherein apparatus as described above is employed.

Claims9

Dependent claims

A process for removing both solid and gaseous pollutants from a gas which comprises:

a. providing a first inner contact zone eccentrically disposed within a second outer contact zone, said inner contact including packing material therein, said inner contact zone dividing said outer contact zero into an expansion flow passage and a restricted flow passage;
b. flowing a scrubbing liquid into both said inner contact zone and said outer contact zone;
c. flowing a gas sequentially along and through said inner and said outer contact zones, said gas being circulated in said outer contact zone and passing sequentially through said expansion flow passage and said restricted flow passage, and solid pollutants being removed from said gas in said outer contact zone and said gaseous pollutants being removed from said gas in said inner contact zone;
and
d. removing said liquid and gas from said zones.

2 more elements

Apparatus for use in removing both solid and gaseous pollutants from a gas comprising, in combination:

an inner shell defining an inner contact zone having an inner fluid flow path therethrough;
packing material disposed in said inner contact zone;
an outer shell disposed about said shell and having end walls, the space between said inner and outer shells defining an outer contact zone having an outer fluid flow path therethrough disposed about said inner shell and communicating with said inner flow path;
said inner shell being disposed eccentrically within said outer shell so that said inner shell divides said outer contact zone into an expansion flow passage and a restricted flow passage;
first fluid feed means connected with said shells for introducing a scrubbing liquid into both said inner and outer contact zones;
second fluid feed means connected with one of said shells including gas inlet means for circulating a gas sequentially along and through said inner and outer contact zones in a manner such that said gas is circulated in said outer contact zone so that it passes sequentially through both said expansion flow passage and said restricted flow passage;
outlet means for said liquid connected with at least one of said shells;
and
outlet means for said gas connected with the one of said shells to which said second fluid feed means is not connected, one of said gas inlet and outlet means being connected with said inner shell without direct communication with said outer zone.

6 more elements

Dependencies are inferred from the claim text.

Air pollution control apparatus and process

Life of this patent

Air pollution control apparatus and process

Life of this patent

Abstract

Claims9