Patents Examined by Cabrena Holecek
  • Patent number: 10537828
    Abstract: A method for preventing fouling of a demister is disclosed. A process fluid is provided into a vessel. A gas is provided to a gas inlet of the vessel. The gas comprises a component that desublimates, crystallizes, solidifies, reacts, or a combination thereof, in the process fluid, forming a first solid. The gas is passed through the process fluid, the component of the gas forming the first solid, resulting in a component-depleted gas. The component-depleted gas is passed out of the process fluid, causing splashing or spurting of the process fluid and the first solid. The diverter section is provided between the demister and the gas inlet, the diverter section comprising a physical obstruction preventing the process fluid and the first solid from splashing or spurting onto the demister. In this manner, fouling of the demister is prevented.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: January 21, 2020
    Assignee: Sustainable Energy Solutions, LLC
    Inventors: Larry Baxter, Andrew Baxter, Kyler Stitt, Aaron Sayre, Stephanie Burt, David Frankman, Nathan Davis
  • Patent number: 10537845
    Abstract: Ammonia-adding apparatus and methods for ammonia-based desulfurization use multi-stage control, calculate a theoretical amount of ammonia based on gas amounts provided by an inlet continuous emission monitoring system (CEMS) and an outlet CEMS of the ammonia-based desulfurization device or associated gas amounts, a SO2 concentration provided by the inlet CEMS, and a predetermined SO2 concentration of the outlet CEMS. The apparatus and methods calculate a corrected theoretical amount of ammonia using half of the ratio of the actual amount of added ammonia to the actual amount of removed sulfur dioxide as a correction coefficient for the theoretical amount of ammonia; add an ammonia absorbent equivalent to the corrected theoretical amount of ammonia to the ammonia-based desulfurization device through an ammonia metering means and an ammonia control valve, and automatically control the actual ammonia flow rate based on the actual SO2 concentration and a change trend provided by the outlet CEMS.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: January 21, 2020
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Jinyong Wang, Jun Zhang
  • Patent number: 10537847
    Abstract: A method for scrubbing off-gas generated in production units for the manufacture of acetic acid and an apparatus therefor. The method comprises supplying off-gas and acetic acid solvent at a tick-over flow rate to an acetic acid scrubbing unit, withdrawing off-gas from the scrubbing unit, supplying withdrawn off-gas to a methanol scrubbing unit, scrubbing the off-gas therein with methanol solvent and withdrawing scrubbed off-gas from the methanol scrubbing unit.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: January 21, 2020
    Assignee: BP Chemicals Limited
    Inventors: Timothy Crispin Bristow, Paul David Williams
  • Patent number: 10537846
    Abstract: A method for separating carbon dioxide from a gas stream, in particular from a flue gas stream, wherein, a gas stream is brought into contact with a washing medium in an absorber of a separation device and the carbon dioxide contained in the gas stream is separated; the charged washing medium is supplied to a desorber of the separation device to release the carbon dioxide; a vapor stream is removed from the desorber and is supplied to a cooling unit to form a condensate; degradation products, in particular nitrosamines, contained in at least a partial stream of the condensate are photolytically decomposed to decomposition products; at least the decomposition products, in particular nitrites and amines, are removed; and at least a partial stream of the condensate is returned to the desorber. A corresponding separation device separates carbon dioxide from a gas stream.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: January 21, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Benjamin Häfner, Ansgar Kursawe, Albert Reichl, Torsten Schliepdiek, Rüdiger Schneider, Henning Schramm
  • Patent number: 10525403
    Abstract: A CO2 recovery method includes: heating a CO2-absorbing solution that has absorbed CO2 from a gas, releasing the CO2 from the CO2-absorbing solution, and regenerating the CO2-absorbing solution, and at least one of: controlling a difference between an actual measured value and a target value of a recovery rate of the CO2 to be within a predetermined range; and controlling a difference between an actual measured value and a target value of a recovery amount of CO2 to be within a predetermined range, and controlling the CO2 recovery rate through a proportional calculation and an integration calculation based on the difference between the actual measured value and the target value of the CO2 recovery rate.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: January 7, 2020
    Assignee: Mitsubishi Heavy Industries Engineering, Ltd.
    Inventors: Yosuke Nakagawa, Daisuke Shimada, Tatsuya Tsujiuchi
  • Patent number: 10525405
    Abstract: A gas transfer processing method includes: transferring gas to an inside or an outside of an absorption liquid within respective processing flow paths while circulating the absorption liquid through the respective processing flow paths; after the gas transferring, separating a mixed fluid including the absorption liquid discharged from outlets of the respective processing flow paths and gas by respective separation headers into the absorption liquid and the gas; and circulating the absorption liquid separated in the separating by returning the separated absorption liquid from the separation headers to inlets of the respective processing flow paths through respective recirculation lines, thus introducing the absorption liquid to the respective processing flow paths. The process promotes transfer of a target component to an absorption liquid, while enabling execution of a component transfer process by compact equipment.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: January 7, 2020
    Assignee: KOBE STEEL, LTD.
    Inventors: Akitoshi Fujisawa, Koji Noishiki, Akira Matsuoka
  • Patent number: 10508820
    Abstract: A humidification device (1) is shown wherein water is nebulized by a vibrating mesh with very small holes. The mesh is part of a reservoir which is fed by a valve arrangement which allows to direct water from a conduit over several water lines within the device either back to the conduit or into the reservoir. The device and a system with such devices allow to humidify and/or cool compartments such as rooms with a very fine mist of water which is hardly visually detectable. The system and device is adapted to be part of a permanent installation with low maintenance.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: December 17, 2019
    Assignee: Condair Group AG
    Inventors: Dario Quadroni, Matthias Streiff, Remo Bucher
  • Patent number: 10507425
    Abstract: An environmental control system includes an air conditioning subsystem; a mix manifold downstream of the air conditioning subsystem and upstream of an environment to be conditioned; and a contaminant removal subsystem downstream of the environment to be conditioned. The contaminant removal subsystem includes a first gas-liquid contactor-separator. The first gas-liquid contactor-separator includes a first packed, stationary bed that provides a heat/mass transfer surface for contact between a contaminated air from the environment and a liquid absorbent.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: December 17, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Phoebe Henson, Stephen Yates, Dacong Weng, Alexander Bershitsky, Ted Bonk
  • Patent number: 10493382
    Abstract: The present invention essentially comprises a replacement for the prior art vapor recovery towers with a tank utilized with a separator, vapor recovery unit, and a holding tank and or tank battery wherein the tank may be made from an atmospheric tank.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: December 3, 2019
    Assignee: Vapor Recovery Solutions LLC
    Inventor: James B. Vernon
  • Patent number: 10486125
    Abstract: A process for the finishing of urea comprising: (a) removing water from an aqueous urea solution in a first evaporation and condensation section, obtaining a urea melt; (b) subjecting said urea melt to a finishing treatment comprising granulation and resulting in solid urea and air contaminated with urea dust and ammonia; (c) subjecting said contaminated air to acid scrubbing, producing an aqueous solution comprising urea and ammonium salts; (d) subjecting at least part of said aqueous solution to evaporation in a second evaporation section, obtaining a liquid stream comprising urea and ammonium salts and a gaseous stream; (e) condensing said gaseous stream in a second condensation section, obtaining a recycle aqueous stream; (f) using at least a part of said recycle aqueous stream for the scrubbing of contaminated air; (g) converting at least a portion of said liquid stream comprising urea and ammonium salts into solid particles, and (h) using said solid particles as seeds for the granulation; a correspondin
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: November 26, 2019
    Assignee: Casale SA
    Inventors: Andrea Scotto, Paolo Bertini
  • Patent number: 10486100
    Abstract: The disclosure includes a method, comprising passing a fluid into a co-current contactor, passing a solvent into the co-current contactor, dividing the solvent into solvent droplets having a first average droplet size, placing the fluid in contact with the solvent droplets to create a combined stream, coalescing at least a portion of the solvent droplets to create solvent droplets having a second average droplet size, wherein the second average droplet size is greater than the first average droplet size, and separating the fluid and the solvent.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: November 26, 2019
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Stephanie A. Freeman, Edward J. Grave, J. Tim Cullinane, P. Scott Northrop, Norman K. Yeh
  • Patent number: 10465926
    Abstract: A method for continuously removing a particular type of gas molecules (“gas molecules”) from a gas stream includes selecting a liquid having an affinity for the gas molecules to be removed, and providing the selected liquid to each of a first and second mat, each mat formed from a plurality of fibers having the ability to retain the selected liquid within longitudinally extending channels having longitudinally extending openings against moving into the space between the individual fibers, the mats in fluid communication therebetween with the selected liquid. The method includes directing the gas stream through a portion of the first mat into contact with the selected liquid along the longitudinally extending openings whereby the selected liquid absorbs the gas molecules, and directing a second gas through a portion of the second mat so that the gas molecules, absorbed by and disbursed throughout the selected liquid, are stripped and carried away.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: November 5, 2019
    Assignee: Johnson Controls Technology Company
    Inventors: Jonathan D. West, Richard M. Sturgeon, Paul Van Hoof
  • Patent number: 10456749
    Abstract: A system for the removal of heat stable amine salts from an amine absorbent used in a carbon dioxide (CO2) capture process.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: October 29, 2019
    Assignees: General Electric Technology GMBH, Dow Global Technologies LLC
    Inventors: Nareshkumar B. Handagama, Barath Baburao, Frederic Vitse, Stephen A. Bedell, Jonathan W. Leister, Ross Dugas
  • Patent number: 10456733
    Abstract: A human load of regularly measuring a pH of a position 4 meters from a discharge point during a term of a commissioning of a ship with a scrubber apparatus is reduced. Provided is an apparatus provided inside a ship having a scrubber, including a first pH measuring instrument which measures a pH value of washing water discharged from the scrubber to outboard, a second pH measuring instrument which measures a pH value of washing water supplied from outboard to the scrubber, and a calculating unit which calculates a pH value of water at a predetermined position outboard, based on a dilution ratio which shows a ratio by which the washing water discharged to outboard is diluted at the predetermined position outboard, the pH value measured by the first pH measuring instrument, and the pH value measured by the second pH measuring instrument.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: October 29, 2019
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Hiroyuki Toyama, Kuniyuki Takahashi
  • Patent number: 10456740
    Abstract: Systems and methods for improved column operation in offshore environments by using a co-current contactor system in floating production, storage and offloading (FPSO) systems.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: October 29, 2019
    Assignee: Bechtel Hydrocarbon Technology Solutions, Inc.
    Inventors: Guang-Chung Lee, Sudhir Golikeri, Jie Yu
  • Patent number: 10456735
    Abstract: Systems and methods for removing hydrogen sulfide from an ammonia stream in the NH3 purification and liquefaction stage of a conventional two-column sour water stripping system using an adsorbent bed.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: October 29, 2019
    Assignee: Bechtel Hydrocarbon Technology Solutions, Inc.
    Inventor: Martin Taylor
  • Patent number: 10449481
    Abstract: A CO2 recovery unit and a CO2 recovery method capable of having an excellent CO2 absorption rate and saving energy are provided. A CO2 recovery unit of the invention includes: a CO2 absorber which includes an upper CO2 absorption unit obtaining a CO2 absorbent by causing a flue gas containing CO2 to contact a CO2 absorbent and a lower CO2 absorption unit obtaining a CO2 absorbent by causing the CO2 absorbent to contact a flue gas containing CO2; a CO2 absorbent regenerator which obtains the CO2 absorbent by heating the CO2 absorbent a thermometer which measures a temperature of the CO2 absorbent supplied from the CO2 absorber to the CO2 absorbent regenerator; and a control device which controls a temperature of the CO2 absorbent supplied to the lower CO2 absorption unit based on the temperature of the CO2 absorbent measured by the thermometer.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: October 22, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.
    Inventors: Atsuhiro Yukumoto, Takuya Hirata, Hiroshi Tanaka, Akiyori Hagimoto, Haruaki Hirayama, Tsuyoshi Oishi
  • Patent number: 10427948
    Abstract: The present invention relates to processes and systems for ammonia recovery and/or acid-gas separation. In some embodiments, a system for acid gas separation may be integrated with an ammonia abatement cycle employing a high temperature absorber. In some embodiments, a system for acid gas separation may employ a higher temperature absorber due to the lower energy consumption and cost of the integrated ammonia abatement cycle. Advantageously, heat may be recovered from the absorber to power at least a portion of any acid gas desorption in the process. Reverse osmosis or other membranes may be employed.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: October 1, 2019
    Inventor: Ethan J. Novek
  • Patent number: 10427093
    Abstract: A CO2 recovery apparatus is provided with: a CO2 absorption tower for bringing exhaust gas into contact with a CO2 absorbing liquid and making the CO2 absorbing liquid absorb the CO2 contained in the exhaust gas; a CO2 absorbing liquid regeneration tower for heating the CO2 absorbing liquid with steam and releasing CO2 from the CO2 absorbing liquid and regenerating the CO2 absorbing liquid; a flowmeter for determining the flow rates of the exhaust gas introduced into the CO2 absorption tower; and a control unit for classifying the flow rates of the exhaust gas into multiple flow rate ranges, and controlling the flow rate of the CO2 absorbing liquid supplied to the CO2 absorption tower and the flow rate of steam supplied to the CO2 absorbing liquid regeneration tower on the basis of prescribed set load values which have been previously established in accordance with the multiple flow rate ranges.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: October 1, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.
    Inventors: Takuya Hirata, Hiroshi Tanaka, Hiromitsu Nagayasu, Yoshiki Sorimachi, Daisuke Shimada, Tsuyoshi Oishi
  • Patent number: 10427097
    Abstract: A desulfurization absorption tower, a method for setting up the same and a method for operating the same. The tower may include an internal anti-corrosion layer that may be used for contacting the flue gas and the desulfurization absorption liquid, may define the tower chamber, and may include stainless steel plate whose thickness is 1.0 mm to 6.0 mm. The tower body may include an external supporting layer that may be used for supporting the anti-corrosion layer and may include carbon steel. The supporting layer and the anti-corrosion layer may be designed to jointly bear a load, wherein the supporting layer may be designed to bear a large part of the load, and the anti-corrosion layer may be designed to bear a small part of the load.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: October 1, 2019
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Congzhi Zhang, Yongying Luo