Process to separate particles from a particles-containing gas stream
AssigneeShell Oil Company
InventorsHubertus Wilhelmus Albertus Dries, Kee-Khoon Foo, Ferdinand Johannes Adriaan Geiger, Michiel Alexander Regelink
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Abstract
Process to separate particles from a particles-containing gas stream, by subjecting the particles-containing gas stream to a centrifugal separation step, wherein the particles-containing gas stream is separated in a gas rich flow and a particles-rich flow and wherein the particles-rich flow is cooled from a temperature in the range from 600 to 800° C. to a temperature in the range from 200 to 450° C. before it is subjected to a second separation step, wherein particles are separated from the particles-rich flow.
Claims13
A process to separate particles from a particles-containing gas stream containing particles having a size in the range of from 0.1 to 15 micrometers wherein the process comprises:
- subjecting the particles-containing gas stream to a centrifugal separation step, whereby the particles-containing gas stream is separated into a gas rich flow and a particles-rich flow;
- cooling the particles-rich flow having a temperature in the range from 600 to 800° C. to provide a cooled particles-rich flow having a temperature in the range from 200 to 450° C.;
- and subjecting the cooled particles-rich flow to a second separation step, whereby particles are separated from the cooled particles-rich flow to thereby provide a gas flow having low solids content and separated particles.
An assembly, comprising:
- a cyclone separator having a first inlet for receiving a particles-containing gas stream, a gas outlet for a gas rich flow and a solids outlet for a particles-rich flow;
- a second separator, having a second inlet for receiving the particles-rich flow from the cyclone separator;
- and, between the second inlet of the second separator and the solids outlet of the cyclone separator, a cooling unit.
Dependencies are inferred from the claim text.