# US 2018/0318752 A1 · Gas redirecting device for liquid-gas contacting column > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0318752 A1 - Document ID: US20180318752A1 - Status: Published application - Kind: A1 - Application number: 15/772,471 - Filed: 2015-10-30 - Published: 2018-11-08 - Earliest claimed: 2015-10-30 - Assignees: T0Tal SA; Ifp Energies Nouvelles; Prosernat - Applicants: Total SA; Ifp Energies Nouvelles; Prosernat - Inventors: Claire WEISS; Thomas MAUBERT; Maxime FOURNIE; Manel FOURATI; Philippe BEARD; Pascal ALIX; Gauthier PERDU; Clément SALAIS; Vincent CARLIER - Web page: https://patentgrep.com/patent/US20180318752A1 ## CPC - B01D 53/18: Absorbing units; Liquid distributors therefor (B01D3/16, B01D3/26, B01D3/30 take precedence; packing elements B01J19/30, B01J19/32) - B01D 1/0005: {Evaporating devices suitable for floating on water} - B01D 3/20: Bubble caps; Risers for vapour; Discharge pipes for liquid - B01D 3/24: with sloping plates or elements mounted stepwise - B01D 3/324: {Tray constructions} - B01D 53/1406: {Multiple stage absorption} - B01D 53/1462: {Removing mixtures of hydrogen sulfide and carbon dioxide} - B01D 53/185: {Liquid distributors} - B01D 2259/4566: for use in transportation means - B01J 2208/00849: outside the bed, e.g. baffles - 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 ## Abstract The present invention relates to a gas-redirecting device presenting an upper plane and a plurality of gas-redirecting tubes comprising an inlet end and an outlet end. For each gas-redirecting tube, the orthogonal projections of the inlet end and the outlet end onto the upper plane have an over-lapping area of at most 50% of the total area of the upper plane covered by the orthogonal projections. Also provided is a liquid-gas contacting column comprising a gas-redirecting device, a floating support comprising a liquid-gas contacting column, at least two packed beds and a method for improving the efficiency of a liquid-gas contacting column which is based on redirecting the gas from a wetted zone of a lower packed bed to a wetted zone of the higher packed bed. ## Claims ### Claim at position 1 1-15. (canceled) ### Claim 16 A gas-redirecting device for a liquid-gas contacting column, the gas-redirecting device comprising: a plate presenting an upper plane and having a plurality of through-holes allowing a gas to pass through the plate; a plurality of gas-redirecting tubes, each gas-redirecting tube comprising an inlet end and an outlet end and being fluidly connected to a through-hole of the plate and; wherein for each gas-redirecting tube, the orthogonal projections of the inlet end and outlet end onto the upper plane have an overlapping area of at most 50% of the total area covered by the orthogonal projections of the inlet end and outlet end. ### Claim 17 (depends on 16) The gas-redirecting device of claim 16, wherein each gas-redirecting tube is welded, gasketed, bolted, screwed, clamped or press fitted to the plate. ### Claim 18 (depends on 16) The gas-redirecting device of claim 16, further comprising at least one orifice allowing a liquid to pass through the plate. ### Claim 19 (depends on 16) The gas-redirecting device of claim 16, further comprising at least one liquid-collecting tube comprising an inlet end and an outlet end and being fluidly connected to the orifice by its inlet end. ### Claim 20 (depends on 16) A liquid-gas contacting column comprising: at least two packed beds; and at gas-redirecting device of claim 16 disposd between the two packed beds. ### Claim 21 (depends on 20) The liquid-gas contacting column of claim 20 further comprising a closed side wall presenting an inner surface, wherein the outlet end is tightly fixed to the inner surface. ### Claim 22 (depends on 21) The liquid-gas contacting column of claim 21 wherein the liquid-gas contacting column has a longitudinal axis and the upper plane of the plate is orthogonal to said longitudinal axis. ### Claim 23 (depends on 20) The liquid-gas contacting column of claim 20 operating under a counter-current liquid-gas flow conditions. ### Claim 24 (depends on 20) The liquid-gas contacting column of claim 20 being an absorption column, a separation column or a heat exchange column. ### Claim 25 A method for improving the efficiency of a liquid-gas contacting column having at least a first packed bed and a second packed bed positioned higher than the first packed bed, each bed having a wetted zone differentiated by the liquid load therethrough, comprising the following step: redirecting a gas from the wetted zone of the first packed bed to the wetted zone of the second packed bed, wherein the wetted zone of the first packed bed and the wetted zone of the second packed bed are offset from one another with respect to a vertical line. ### Claim 26 (depends on 25) The method of claim 25, wherein the wetted zone of the first packed bed is an underloaded area and the wetted zone of the second packed bed is an overloaded area or a normally loaded area. ### Claim 27 (depends on 25) The method of claim 25, wherein the wetted zone of the first packed bed is an overloaded area and the wetted zone of the second packed bed is an underloaded area or a normally loaded area. ### Claim 28 (depends on 25) The method of claim 25, wherein the wetted zone of the first packed bed is a normally loaded area and the wetted zone of the second packed bed is an underloaded area or an overloaded area. ### Claim 29 (depends on 25) The method of claim 25, wherein the differentiated wetted zones are sorted into a plurality of types of wetted zone according to the liquid load flowing therethrough, and wherein the as is redirected so that it passes through at least two types of wetted zone. ### Claim 30 (depends on 29) The method of claim 29, wherein the gas is redirected so that it passes through three types of wetted zones. ### Claim 31 (depends on 29) The, method of claim 29, wherein the gas is redirected so that it passes through each type of wetted zones. ### Claim 32 (depends on 20) A floating support comprising the liquid-gas contacting column of claim 20.