# US 2019/0168159 A1 · Pollutant treatment process and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0168159 A1 - Document ID: US20190168159A1 - Status: Published application - Kind: A1 - Application number: 15/830,701 - Filed: 2017-12-04 - Published: 2019-06-06 - Earliest claimed: 2017-12-04 - Assignees: Ricardo, Inc.; Ricardo UK Limited - Applicants: Ricardo Inc.; Ricardo UK Limited - Inventors: Damodara M. Poojary; Jacques F. Nicole; Matthew Keenan - Web page: https://patentgrep.com/patent/US20190168159A1 ## CPC - B01D 53/8628: {Processes characterised by a specific catalyst} - B01D 53/8625: {Nitrogen oxides} - B01D 53/8668: {Removing organic compounds not provided for in B01D53/8603 - B01D53/8665} - B01D 53/9409: {Nitrogen oxides} - B01J 23/745: Iron - B01J 35/19: {Catalysts containing parts with different compositions} - B01J 37/0201: {Impregnation} - B01J 37/0236: {Drying, e.g. preparing a suspension, adding a soluble salt and drying} - B01J 37/088: {Decomposition of a metal salt} - C01B 3/40: characterised by the catalyst - B01D 53/92: of engine exhaust gases (exhaust {or silencing} apparatus {for internal combustion engines, machines or engines in general}, having means for purifying, {rendering innocuous} or otherwise treating exhaust gases F01N3/00) - B01D 2251/104: Ozone - B01D 2255/20738: Iron - B01D 2255/30: Silica - B01D 2256/16: Hydrogen - B01D 2257/404: Nitrogen oxides other than dinitrogen oxide - B01D 2257/702: Hydrocarbons - B01D 2258/012: Diesel engines and lean burn gasoline engines - B01D 2258/014: Stoichiometric gasoline engines - B01D 2258/0283: Flue gases - C01B 2203/0261: containing a catalytic partial oxidation step [CPO] - C01B 2203/1047: Group VIII metal catalysts - C01B 2203/1082: Composition of support materials - C01B 2203/1235: Hydrocarbons - C01B 2203/1247: Higher hydrocarbons - Y02C 20/20: of methane - 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 - C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C} - Y02C: CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG] ## Abstract A process for removing hydrocarbons from a feed stream containing hydrocarbons includes introducing ozone to the feed stream to produce an ozone doped stream containing ozone and hydrocarbons, and contacting the ozone doped stream with a supported metal catalyst at a temperature of from 100° C. to 300° C. to produce a treated stream, wherein the supported metal catalyst comprises iron supported on a support selected from aluminosilicates, silica-aluminas, silicates and aluminas. A process for removing NOx from a feed stream containing NOx, and an apparatus for removing hydrocarbons and/or NOx from a feed stream containing hydrocarbons and/or NOx are also provided. ## Claims ### Claim 1 A process for removing hydrocarbons from a feed stream containing hydrocarbons, the process comprising: introducing ozone to the feed stream to produce an ozone doped stream containing ozone and hydrocarbons; and contacting the ozone doped stream with a supported metal catalyst at a temperature of from 100° C. to 300° C. to produce a treated stream; wherein the supported metal catalyst comprises iron supported on a support selected from aluminosilicates, silica-aluminas, silicates and aluminas. ### Claim 2 (depends on 1) The process of claim 1, wherein the ozone doped stream is contacted with the supported metal catalyst at a temperature of from 130° C. to 280° C. ### Claim 3 (depends on 1) The process of claim 1, wherein the support of the supported metal catalyst comprises an aluminosilicate support. ### Claim 4 (depends on 1) The process of claim 1, wherein the contacting step comprises providing a flow of the ozone doped stream over the supported metal catalyst continuously for greater than 1 minute. ### Claim 5 (depends on 1) The process of claim 1, wherein the feed stream comprises an exhaust stream from a hydrocarbon combustion process or a waste gas stream from an industrial process. ### Claim 6 (depends on 1) The process of claim 1, wherein the ozone introduced to the feed stream is generated by an ozone generator in situ. ### Claim 7 (depends on 1) The process claim 1, wherein water is present in the feed stream or the ozone doped stream in an amount of up to 15% v/v. ### Claim 8 (depends on 1) The process of claim 1, wherein the process comprises removing C1 to C20 hydrocarbons from a feed stream containing C1 to C20 hydrocarbons. ### Claim 9 (depends on 7) The process of claim 7, wherein the feed stream further comprises NOx. ### Claim 10 (depends on 9) The process of claim 9, wherein the concentration of NOx in the feed stream is at least 50 ppm. ### Claim 11 (depends on 1) The process of claim 1, wherein the concentration of NO in the feed stream is less than 100 ppm. ### Claim 12 (depends on 1) The process of claim 1, wherein the treated stream has an increased concentration of hydrogen relative to the feed stream. ### Claim 13 A process for removing NOx from a feed stream containing NOx, the process comprising: introducing ozone to the feed stream to produce an ozone doped stream containing ozone and NOx; and contacting the ozone doped stream with a supported metal catalyst at a temperature of from 100° C. to 300° C. to produce a treated stream; wherein the supported metal catalyst comprises iron supported on a support selected from aluminosilicates, silica-aluminas, silicates and aluminas, and wherein the ozone doped stream contains water. ### Claim 14 (depends on 13) The process of claim 13, wherein the support of the supported metal catalyst comprises an aluminosilicate support. ### Claim 15 An apparatus for removing hydrocarbons and/or NOx from a feed stream containing hydrocarbons and/or NOx, the apparatus comprising: a source of ozone arranged to introduce ozone to the feed stream to produce an ozone doped stream containing ozone and hydrocarbons and/or NOx; a supported metal catalyst comprising iron supported on a support selected from aluminosilicates, silica-aluminas, silicates and aluminas; wherein the apparatus is arranged to contact the ozone doped stream with the supported metal catalyst at a temperature of from 100° C. to 300° C. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein the support of the supported metal catalyst comprises an aluminosilicate support. ### Claim 17 (depends on 15) The apparatus of claim 15, wherein the apparatus is arranged to receive an exhaust stream from a hydrocarbon combustion process or a waste gas stream from an industrial process as at least a portion of the feed stream. ### Claim 18 (depends on 15) The apparatus of claim 15, wherein the apparatus is configured so that the ozone doped stream is contacted with the supported metal catalyst at a temperature of from 130° C. to 280° C. ### Claim 19 (depends on 15) The apparatus of claim 15, wherein the apparatus is configured to provide a flow of the ozone doped stream over the supported metal catalyst continuously for greater than 1 minute. ### Claim 20 (canceled) ### Claim 21 (depends on 3) The process of claim 3, wherein the aluminosilicate is beta zeolite.