Method and apparatus for removing suspended fine particles from gases and liquids
AssigneesFrancis A. L. Dullien, Institut Francais du Petrole
InventorFrancis A. L. Dullien
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Abstract
A method of removing particulates from a gas stream involves introducing the gas stream in a turbulent flow condition into and through a flow passage situated over spaced surfaces defining a plurality of stagnant, turbulent-free regions of gas in which there is no net gas flow and which communicate with said gas stream and arranging the stagnant regions near the flow passage so that turbulent eddies of said gas stream carrying suspended particulates penetrate spaces between the surfaces and then decay in said stagnant regions defined therebetween where said particulates are trapped and deposited mechanically on said surfaces within each of said regions. The deposits accumulate at bottoms of the regions and can be periodically removed.
Claims17
A method for removing particulates from a gas stream containing the particulates, which comprises:
- (a) passing said gas stream, with turbulent flow, through a flow passage in a given direction in a housing over a plurality of stagnant, turbulent-free regions of gas in which there is no net gas flow and which communicate with said gas stream;
- and
- (b) arranging a plurality of surfaces transversely to the direction of flow of the gas stream, said surfaces extending away from the gas stream and being spaced closely together to define the turbulent-free regions, said regions each communicating with the gas passage at one end and being closed at another end, with each region occupying substantially all of the space between adjacent surfaces so that turbulent eddies of said gas stream carrying suspended particulates enter spaces between the surfaces and then decay in said plurality of stagnant, turbulent-free regions and said particulates are trapped and deposited mechanically on the surfaces defining each of said stagnant, turbulent-free regions.
An apparatus for removing particulates from a gas stream containing the particulates which comprises a housing having an inlet and an outlet, a flow passage for conveying said gas stream in a turbulent flow in a direction from said inlet to said outlet, parallel collector plates which are arranged subjacent and transversely to said flow passage, said plates forming spaces therebetween, said spaces each communicating at one end with the flow passage in order to create thereunder a plurality of stagnant, turbulent-free gas regions extending away from the flow passage between said plates wherein said particulates are trapped and are deposited on surfaces of said plates;
- said collector plates being closely spaced together so that the spaces formed therebetween allow turbulent eddies of said gas stream to enter only into upper portions of the spaces formed between said plates and cause the eddies to decay in the stagnant, turbulent-free regions occupying substantially all of the remaining portions of said spaces, said spaces each being closed at the other end.
Dependencies are inferred from the claim text.