# US 8,770,497 B2 · Device and process for distributing a fluid > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,770,497 B2 - Document ID: US8770497B2 - Status: Granted - Kind: B2 - Application number: 12/609,757 - Filed: 2009-10-30 - Published: 2010-05-06 - Granted: 2014-07-08 - Earliest claimed: 2008-10-31 - Assignees: Solvay (Societe Anonyme) - Applicants: Thierry Cartage; Olivier Jacques F. J. G. Bodson; Marc Thijssen - Inventors: Thierry Cartage; Olivier Jacques F. J. G. Bodson; Marc Thijssen - Web page: https://patentgrep.com/patent/US8770497B2 ## CPC - B05B 1/20: Perforated pipes or troughs, e.g. spray booms; Outlet elements therefor - B01D 53/79: Injecting reactants - B01D 53/83: with moving reactants - B01J 4/004: {Sparger-type elements} - B01J 4/005: {provided with baffles} - B01J 8/004: {by means of a nozzle} - F23J 7/00: Arrangement of devices for supplying chemicals to fire - F23J 15/003: {for supplying chemicals to fumes, e.g. using injection devices} - B01D 2251/2062: Ammonia - B01D 2251/606: Carbonates - B01D 2257/302: Sulfur oxides - B01D 2257/404: Nitrogen oxides other than dinitrogen oxide - B05B 1/02: designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, {or having an outlet of particular shape}(B05B1/26, B05B1/28, B05B1/34 take precedence) - B05B 7/1486: {for spraying particulate material in dry state} - F23J 2219/60: Sorption with dry devices, e.g. beds - Y10T 83/0481: Puncturing - Y10T 83/0596: Cutting wall of hollow work - Y10T 137/0318: Processes - Y10T 137/0391: Affecting flow by the addition of material or energy - Y10T 137/8593: Systems - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - F23J: REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES (combustion apparatus for consuming smoke or fumes, e.g. exhaust gases, F23G7/06) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract Device for distributing a fluid in a controlled manner, in particular for distributing a gas loaded with particles, the device comprising a pipe (1) provided with at least one inlet orifice (2) and with a series of outlet orifices (3) spread along the pipe (1) and cut in the side wall of this pipe, characterized in that at least one section (4) of the wall, located downstream of at least one outlet orifice and limited by a section (5) of the edge of this orifice, has a shape such that this section of the edge of this orifice is positioned inside the pipe so that, when the device is in service, the flow direction of the fluid exiting this orifice and travelling along said wall section is controlled by the shape of the latter section. ## Claims ### Claim 1 A process for treatment of a flue gas, comprising: placing a device for distributing a gas loaded with solid particles inside a duct through which a flue gas to be treated travels, wherein the device comprises a pipe (1) provided with at least one inlet orifice (2) and with a series of outlet orifices (3) spread along the pipe (1) and placed in the side wall of said pipe, wherein the pipe has an open downstream end, acting as supplementary outlet orifice (7) whose diameter is less than the diameter of the pipe (1), and wherein at least one deformed section (4) of the wall of the pipe, located downstream of at least one outlet orifice (3) and limited by a section (5) of the edge of such outlet orifice (3), has a concave shape such that said section (5) of the edge of this outlet orifice (3) is positioned inside the pipe (1) so that, when the device is in service, the flow direction of a gas loaded with solid reactant particles exiting such outlet orifice (3) and travelling along said deformed concave wall section (4), is controlled by the shape of said section (5) of the edge; introducing the gas stream loaded with solid reactant particles into the inlet orifice (2) of the pipe (1) so as to distribute said loaded gas stream homogeneously in the duct; reacting the solid reactant particles with the flue gas in order to treat said flue gas; and separating said treated flue gas from the solid reactant particles. ### Claim 2 (depends on 1) The flue gas treatment process according to claim 1, wherein the solid reactant particles comprise sodium bicarbonate or trona. ### Claim 3 (depends on 1) The process according to claim 1, wherein the pipe (1) is of cylindrical shape, one end of said pipe comprising the inlet orifice (2) and the downstream end of said pipe being provided with a nozzle (6) comprising the supplementary outlet orifice (7). ### Claim 4 (depends on 1) The process according to claim 1, wherein the outlet orifices (3) are separated by a distance of at least one diameter of the pipe. ### Claim 5 (depends on 1) The process according to claim 1, wherein the supplementary outlet orifice (7) has a diameter less than 0.9 times the diameter of the pipe. ### Claim 6 (depends on 1) The process according to claim 1, wherein the pipe is cylindrical, and wherein the outlet orifices (3) are aligned relative to a generatrix of the pipe. ### Claim 7 (depends on 1) The process according to claim 1, wherein the outlet orifices (3) have an aspect ratio lower than 5. ### Claim 8 (depends on 1) The process according to claim 1, wherein the pipe is composed of a single part. ### Claim 9 (depends on 1) The process according to claim 1, wherein the distribution is carried out with a low pressure drop in the device of less than 50 mbar when the gas stream is air loaded with said solid reactant particles in form of a powder, and when the air velocities measured in the device are greater than 10 m/s. ### Claim 10 (depends on 1) The process according to claim 1, wherein the gas stream is air loaded with said solid reactant particles. ### Claim 11 (depends on 1) The process according to claim 1, wherein the gas stream is loaded with said solid reactant particles having an average diameter D50 of less than 100 μm. ### Claim 12 (depends on 1) The process according to claim 1, wherein a powder is milled to form the solid reactant particles directly before being introduced to the distribution device. ### Claim 13 (depends on 1) The process according to claim 1, wherein the solid reactant particles comprise sodium carbonate, sodium bicarbonate, lime, limestone, or trona. ### Claim 14 (depends on 1) The process according to claim 1, wherein the deformed section (4) is made by piercing at least one slit substantially perpendicularly to the length of the pipe (1) provided with at least one inlet orifice and a pressure by means of an article of convex shape is exerted on the section of the pipe wall adjacent to the downstream edge of said slit so as to deform the section of the wall to form said deformed section (4) in order to place the downstream edge of the slit inside the pipe. ### Claim 15 A process for treatment of a flue gas, comprising: placing a device for distributing a gas loaded with solid particles inside a duct through which a flue gas to be treated travels, wherein the device comprises a pipe (1) provided with at least one inlet orifice (2) and with a series of outlet orifices (3) spread along the pipe (1) and placed in the side wall of said pipe, wherein the pipe has an open downstream end, acting as supplementary outlet orifice (7) whose diameter is less than the diameter of the pipe (1), and wherein at least one deformed section (4) of the wall of the pipe, located downstream of at least one outlet orifice (3) and limited by a section (5) of the edge of such outlet orifice (3), has a shape such that said section (5) of the edge of this outlet orifice (3) is positioned inside the pipe (1) so that, when the device is in service, the flow direction of a gas loaded with solid reactant particles exiting such outlet orifice (3) and travelling along said deformed wall section (4), is controlled by the shape of said section (5) of the edge; introducing an air stream loaded with solid reactant particles into the inlet orifice (2) of the pipe (1) so as to distribute said loaded air stream homogeneously in the duct, wherein the distribution is carried out with a low pressure drop in the device of less than 50 mbar when the air velocities measured in the device are greater than 10 m/s; reacting the solid reactant particles with the flue gas in order to treat said flue gas; and separating said treated flue gas from the solid particles.