Jose L QuevedoBuckeye, AZ
Jose Quevedo Phones & Addresses
Buckeye, AZ
Avondale, AZ
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Us Patents
Systems And Methods For Reducing Electrostatic Charge In A Fluidized Bed
US Patent:
7905433, Mar 15, 2011
Filed:
Jun 20, 2008
Appl. No.:
12/142883
Inventors:
Robert Pfeffer - Scottsdale AZ, US
Jose A. Quevedo - Brick NJ, US
Jose A. Quevedo - Brick NJ, US
Assignee:
New Jersey Institute of Technology - Newark NJ
International Classification:
B02C 19/00
US Classification:
241 1, 241 5, 241 39, 241301
Abstract:
Systems and methods for fluidization of particle and/or powder systems with reduced generation of static electricity are disclosed. The systems/methods are particularly advantageous for fluidization of nanoparticle and/or nanopowder systems, where the generation and/or presence of static electricity is a significant fluidization issue. The systems and methods generally involve the addition of an alcohol or other solvent to a fluidization gas to be introduced to the fluidization chamber, e. g. , by bubbling the fluidization gas through a volume of solvent/alcohol, to advantageously reduce the build up of electrostatic charge. Systems and methods for capturing in-situ images within a fluidized bed are also provided that involve reducing the electrostatic charges generated within the fluidized bed and introducing a particle vision and measurement (PVM) probe to the fluidized bed for image capture.
Fluidized Bed Systems And Methods Including Micro-Jet Flow
US Patent:
8118243, Feb 21, 2012
Filed:
Nov 9, 2007
Appl. No.:
11/937736
Inventors:
Robert Pfeffer - Scottsdale AZ, US
Jose A. Quevedo - Brick NJ, US
Juergen Flesch - Rayong, TH
Jose A. Quevedo - Brick NJ, US
Juergen Flesch - Rayong, TH
Assignee:
New Jersey Institute of Technology - Newark NJ
Evonik Carbon Black GmbH - Hanau
Evonik Carbon Black GmbH - Hanau
International Classification:
B02C 19/00
US Classification:
241 5, 241 39, 241 40
Abstract:
Methods and systems for enhancing fluidization of nanoparticle and/or nanoagglomerates are provided. A fluidization chamber is provided with a fluidizing medium directed in a first fluidizing direction, e. g. , upward into and through a bed containing a volume of nanoparticles and/or nanopowders. A second source of air/gas flow is provided with respect to the fluidization chamber, the secondary air/gas flow generally being oppositely directed relative to the fluidizing medium. Turbulence created by the secondary gas flow is advantageously effective to aerate the agglomerates and the shear generated by the jet is advantageously effective to break apart nanoagglomerates and/or reduce the tendency for nanoagglomerates to form or reform. A downwardly directed source of secondary gas flow located near the main gas distributor leads to full fluidization of the entire amount of powder in the column. The oppositely directed fluid flow facilitates powder circulation within the fluidization chamber, thereby enhancing fluidization results.
Fluidized Bed Systems And Methods Including Micro-Jet Flow
US Patent:
8439283, May 14, 2013
Filed:
Jan 30, 2012
Appl. No.:
13/361485
Inventors:
Robert Pfeffer - Scottsdale AZ, US
Jose A. Quevedo - Brick NJ, US
Juergen Flesch - Rayong, TH
Jose A. Quevedo - Brick NJ, US
Juergen Flesch - Rayong, TH
Assignee:
New Jersey Institute of Technology - Newark NJ
Orion Engineered Carbons GmbH - Hanau
Orion Engineered Carbons GmbH - Hanau
International Classification:
B02C 19/06
B02C 23/00
B02C 23/00
US Classification:
241 5, 241 39
Abstract:
Methods and systems for enhancing fluidization of nanoparticle and/or nanoagglomerates are provided. A fluidization chamber is provided with a fluidizing medium directed in a first fluidizing direction, e. g. , upward into and through a bed containing a volume of nanoparticles and/or nanopowders. A second source of air/gas flow is provided with respect to the fluidization chamber, the secondary air/gas flow generally being oppositely directed relative to the fluidizing medium. Turbulence created by the secondary gas flow is advantageously effective to aerate the agglomerates and the shear generated by the jet is advantageously effective to break apart nanoagglomerates and/or reduce the tendency for nanoagglomerates to form or reform. A downwardly directed source of secondary gas flow located near the main gas distributor leads to full fluidization of the entire amount of powder in the column. The oppositely directed fluid flow facilitates powder circulation within the fluidization chamber, thereby enhancing fluidization results.
Fluidized Mixing And Blending Of Nanopowders With Secondary Gas Flow
US Patent:
8550698, Oct 8, 2013
Filed:
Nov 9, 2007
Appl. No.:
11/937787
Inventors:
Robert Pfeffer - Scottsdale AZ, US
Jose A. Quevedo - Brick NJ, US
Juergen Flesch - Rayong, TH
Jose A. Quevedo - Brick NJ, US
Juergen Flesch - Rayong, TH
Assignee:
Orion Engineered Carbons GmbH - Frankfurt am Main
New Jersey Institute of Technology - Newark NJ
New Jersey Institute of Technology - Newark NJ
International Classification:
B01F 13/02
US Classification:
366348, 366101, 366107, 241 5, 241 38
Abstract:
Methods and systems for enhancing fluidization of nanoparticle and/or nanoagglomerates and for mixing and blending nanoparticle/nanoagglomerate systems at the nanoscale are provided. A fluidization chamber is provided with a fluidizing medium (e. g. , a fluidizing gas) directed in a first fluidizing direction, e. g. , upward into and through a bed containing a volume of nanoparticles and/or nanopowders. A second source of air/gas flow is provided with respect to the fluidization chamber, the secondary air/gas flow generally being oppositely (or substantially oppositely) directed relative to the fluidizing medium. Turbulence created by the secondary gas flow, e. g. , a jet from a micro jet nozzle, is advantageously effective to aerate the agglomerates and the shear generated by the jet is advantageously effective to break apart nanoagglomerates and/or reduce the tendency for nanoagglomerates to form or reform. A downwardly directed source of secondary gas flow located near the main gas distributor leads to full fluidization of the entire amount of powder in the column. In addition, the oppositely directed fluid flow facilitates powder circulation within the fluidization chamber, thereby enhancing fluidization and mixing/blending results.
Aerogel-Based Filtration Of Gas Phase Systems
US Patent:
8632623, Jan 21, 2014
Filed:
May 1, 2009
Appl. No.:
12/434306
Inventors:
Robert Pferrer - Scottsdale AZ, US
Jose A. Quevedo - Brick NJ, US
Jose A. Quevedo - Brick NJ, US
Assignee:
New Jersey Institute of Technology - Newark NJ
International Classification:
B01D 53/12
US Classification:
95108, 95275, 96150, 55474
Abstract:
A purification method comprises directing a system having a gas phase component and a contaminant through a filter including an aerogel material, e. g. , hydrophobic silica-based aerogel particles. A filter for purifying a gas phase system comprises an aerogel material in an amount sufficient to remove at least a portion of a contaminant present in the gas phase system. In preferred examples, the filter is a fluidized bed. In further examples, the filter is a packed bed.
Inverse Fluidization For Purifying Fluid Streams
US Patent:
2010011, May 13, 2010
Filed:
May 7, 2009
Appl. No.:
12/437349
Inventors:
Robert Pfeffer - Scottsdale AZ, US
Jose Quevedo - Brick NJ, US
Jose Quevedo - Brick NJ, US
Assignee:
NEW JERSEY INSTITUTE OF TECHNOLOGY - Newark NJ
International Classification:
C02F 1/28
B01D 15/02
B01D 17/022
B01J 20/06
C02F 101/32
B01D 15/02
B01D 17/022
B01J 20/06
C02F 101/32
US Classification:
210661, 210263, 210691
Abstract:
A method for removing a contaminant from a fluid system comprises contacting the fluid system with an inversely fluidized material, for example a particulate aerogel, thereby removing at least a portion of the contaminant from the fluid system. The method can be used to remove oil or other organic materials from wastewater streams. It can be conducted in a fluidized bed, which includes nanoporous particles and a fluidizing medium, wherein the nanoporous particles have a density lower than that of the fluidizing medium.
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