# US 11,299,404 B2 · Condensation catalyst systems and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,299,404 B2 - Document ID: US11299404B2 - Status: Granted - Kind: B2 - Application number: 16/844,848 - Filed: 2020-04-09 - Published: 2020-07-23 - Granted: 2022-04-12 - Earliest claimed: 2016-12-21 - Assignees: Hamilton Sundstrand Corporation - Applicants: Hamilton Sundstrand Corporation - Inventors: John W. Steele; Barbara M. Peyton; Tony Rector - Web page: https://patentgrep.com/patent/US11299404B2 ## CPC - C02F 1/281: {using inorganic sorbents} - B01J 20/20: comprising free carbon; comprising carbon obtained by carbonising processes - B01J 29/061: {containing metallic elements added to the zeolite} - B01J 31/06: containing polymers {(organometallic polymers B01J31/123; polymer-bound organometallic complexes B01J31/165; coordination polymers B01J31/1691)} - B01J 31/26: containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 - B01J 47/12: characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes (electrodialysis or electro-osmosis B01D61/42) - C02F 1/283: {using coal, charred products, or inorganic mixtures containing them} - C02F 1/42: by ion-exchange (ion-exchange in general B01J) - C02F 2101/30: Organic compounds - C02F 2103/023: {Water in cooling circuits} - C02F 2201/001: Build in apparatus for autonomous on board water supply and wastewater treatment (e.g. for aircrafts, cruiseships, oil drilling platforms, railway trains, space stations) - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS ## Abstract A reactor system may comprise a housing; and a condensation catalyst layer within the housing comprising a condensation catalyst comprised of at least one of a base-substituted zeolite, a stannous salt, or a phosphonitrile chloride. The condensation catalyst layer may be configured to catalyze a condensation reaction of a plurality of silane diols in water flowing through the housing into a plurality of siloxanes. ## Claims ### Claim 1 A method, comprising: causing water and a plurality of silane diols to contact a condensation catalyst comprised in a reactor system, wherein the condensation catalyst comprises a phosphonitrile chloride; and reacting the plurality of silane diols with the condensation catalyst to form a plurality of siloxanes, wherein at least one of: the condensation catalyst further comprises a binder, or wherein the condensation catalyst is pelletized. ### Claim 2 (depends on 1) The method of claim 1, wherein the binder comprises kaolin and carboxymethylcellulose. ### Claim 3 (depends on 1) The method of claim 1, further comprising: condensing the water and a first plurality of siloxanes out of air onto a surface comprising a hydrophilic coating prior to the causing the water and the plurality of silane diols to contact the condensation catalyst; and forming the plurality of silane diols via a reaction between the hydrophilic coating and the first plurality of siloxanes. ### Claim 4 (depends on 3) The method of claim 3, further comprising at least one of removing or exchanging ions comprised in the water by contacting the water with an ion exchange resin layer in a fluid treatment system which comprises the reactor system. ### Claim 5 (depends on 3) The method of claim 3, further comprising capturing the plurality of siloxanes by causing the water to contact at least one of an activated carbon or a synthetic carbon downstream of the condensation catalyst. ### Claim 6 (depends on 1) The method of claim 1, wherein the plurality of silane diols is a plurality of dimethylsilanediol molecules. ### Claim 7 A fluid treatment system, comprising: an air conditioner comprising a heat exchanger, wherein the heat exchanger comprises a hydrophilic coating that condenses water and siloxanes out of air, wherein the hydrophilic coating and the siloxanes react to form a plurality of silane diols; and a reactor system fluidly coupled to the air conditioner downstream of the air conditioner, wherein the water and the plurality of silane diols, from the air conditioner, flow to the reactor system, wherein the reactor system comprises a housing and a condensation catalyst within the housing comprising a phosphonitrile chloride, wherein the water and the plurality of silane diols flow through the reactor and contact the condensation catalyst, which catalyzes a condensation reaction of the plurality of silane diols flowing through the housing into a plurality of siloxanes. ### Claim 8 (depends on 7) The fluid treatment system of claim 7, wherein the condensation catalyst further comprises a binder. ### Claim 9 (depends on 8) The fluid treatment system of claim 8, wherein the binder comprises kaolin and carboxymethylcellulose. ### Claim 10 (depends on 7) The fluid treatment system of claim 7, wherein the reactor system further comprises at least one of an activated carbon layer or a synthetic carbon layer in the housing downstream of the condensation catalyst, wherein the at least one of the activated carbon layer or the synthetic carbon layer is configured to capture the plurality of siloxanes. ### Claim 11 A method, comprising: causing water and a plurality of silane diols to contact a condensation catalyst comprised in a reactor system, wherein the condensation catalyst comprises a phosphonitrile chloride; reacting the plurality of silane diols with the condensation catalyst to form a plurality of siloxanes; condensing the water and a first plurality of siloxanes out of air onto a surface comprising a hydrophilic coating prior to the causing the water and the plurality of silane diols to contact the condensation catalyst; and forming the plurality of silane diols via a reaction between the hydrophilic coating and the first plurality of siloxanes.