Konstantinos S Kontomaris from 5434 Doral Dr, Wilmington, DE 19808, age 63, Phone: 302 368-2165

Us Patents

Compositions Comprising Ionic Liquids And Fluoroolefins And Use Thereof In Absorption Cycle Systems
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US Patent:

20110088418, Apr 21, 2011
Filed:

Jul 8, 2009
Appl. No.:

12/999082
Inventors:

Konstantinos Kontomaris - Hockessin DE, US
Nandini C. Mouli - Reisterstown MD, US
Mark Brandon Shiflett - Wilmington DE, US
International Classification:

F25B 15/00
C09K 5/04
US Classification:

62101, 252 67, 62476
Abstract:

Disclosed herein are compositions comprising at least one ionic liquid and at least one fluoroolefin. Such compositions may be useful as absorbent/working fluid pairs in absorption cycle systems for providing cooling or heat.

Absorption Cycle Utilizing Ionic Compounds And/Or Non-Ionic Absorbents As Working Fluids
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US Patent:

20110203301, Aug 25, 2011
Filed:

Nov 6, 2009
Appl. No.:

13/126214
Inventors:

Thomas Foo - Wilmington DE, US
Konstantinos Kontomaris - Hockessin DE, US
Steven Raymond Lustig - Landenberg PA, US
Dennis A. Redder - Hockessin DE, US
Mark A. Scialdone - West Grove PA, US
Mark Brandon Shiflett - Wilmington DE, US
Berlyn R. Mellein - Wilmington DE, US
Megan Quigley - Aldan PA, US
Assignee:

E.I. DU PONT DE NEMOURS AND COMPANY - Wilmington DE
International Classification:

F25B 15/00
C09K 5/04
US Classification:

62101, 62476, 252 69
Abstract:

This invention relates to compositions comprising a refrigerant and at least one ionic compound and/or non-ionic absorbent, and also to devices capable of executing an absorption cycle using such compositions as a refrigerant pair. This invention also provides methods and apparatus for cooling using an absorption cycle comprising a refrigerant, and at least one ionic compound and/or non-ionic absorbent as the absorbent. This invention also provides methods and apparatus for heating using an absorption cycle comprising a refrigerant, and at least one ionic compound and/or non-ionic absorbent,

Absorption Cycle System Having Dual Absorption Circuits
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US Patent:

20110219811, Sep 15, 2011
Filed:

Dec 10, 2009
Appl. No.:

12/622865
Inventors:

KONSTANTINOS KONTOMARIS - Hockessin DE, US
Assignee:

E.I. DU PONT DE NEMOURS AND COMPANY - Wilmington DE
International Classification:

F25B 15/00
US Classification:

62476
Abstract:

An absorption cycle system utilizes an additional absorption circuit in conjunction with a traditional absorption circuit. The absorbent used in the additional absorption circuit could contain an ionic compound, or any absorbent with relatively low crystallization. Mixtures of such absorbent with water remain liquid at temperatures lower than the minimum feasible operating temperature of the traditional lithium bromide water absorbent solutions of the prior art.

Absorption Cycle System Having Dual Absorption Circuits
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US Patent:

20110226004, Sep 22, 2011
Filed:

Nov 24, 2009
Appl. No.:

13/129125
Inventors:

Konstantinos Kontomaris - Hockessin DE, US
Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:

F25B 15/00
US Classification:

62476
Abstract:

An absorption cycle system utilizes an additional absorption circuit in conjunction with a traditional absorption circuit. The absorbent used in the additional absorption circuit could contain an ionic compound, or any absorbent with relatively low crystallization. Mixtures of such absorbent with water remain liquid at temperatures lower than the minimum feasible operating temperature of the traditional lithium bromide water absorbent solutions of the prior art.

Ionic Compounds In Lithium Bromide/Water Absorption Cycle Systems
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US Patent:

20120011886, Jan 19, 2012
Filed:

Mar 31, 2010
Appl. No.:

13/259229
Inventors:

Mark Brandon Shiflett - Wilmington DE, US
Konstantinos Kontomaris - Wilmington DE, US
Steven Raymond Lustig - Landenberg PA, US
Mark A. Scialdone - West Grove PA, US
Megan Quigley - Aldan PA, US
Berlyn R. Mellein - Wilmington DE, US
International Classification:

F25B 15/00
C09K 5/04
US Classification:

62476, 252 67
Abstract:

Disclosed herein are compositions comprising lithium bromide, water, and at least one ionic compound. These compositions are useful as working fluids in absorption cycle systems. The ionic compound additive has been demonstrated to reduce crystallization in such absorption cycle systems.

Chiller Apparatus Containing Cis-1,1,1,4,4,4-Hexafluoro-2-Butene And Methods Of Producing Cooling Therein
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US Patent:

20120042669, Feb 23, 2012
Filed:

Jun 3, 2010
Appl. No.:

13/265020
Inventors:

Barbara Haviland Minor - Elkton MD, US
Konstantinos Kontomaris - Wilmington DE, US
Thomas J. Leck - Hockessin DE, US
Assignee:

E.I. DU PONT DE NEMOURS AND COMPANY - Wilmington DE
International Classification:

F25D 15/00
US Classification:

62119, 62467
Abstract:

Disclosed herein are chiller apparatus containing cis-HFO-1336mzz. These chillers may be centrifugal chillers or positive displacment (e.g., screw) chillers and may comprise flooded evaporators or direct expansion evaporators. Also disclosed herein are methods for producing cooling comprising evaporating cis-HFO-1336mzz in the vicinity of a body to be cooled.

Chiller Apparatus Containing Trans-1,1,1,4,4,4-Hexafluoro-2-Butene And Methods Of Producing Cooling Therein
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US Patent:

20120159976, Jun 28, 2012
Filed:

Sep 15, 2010
Appl. No.:

13/394406
Inventors:

Konstantinos Kontomaris - Wilmington DE, US
Assignee:

E.I. DuPont De Nemours and Company - Wilmington
International Classification:

F25B 1/00
C09K 5/04
C07C 21/18
US Classification:

62115, 570136, 252 67, 62 56
Abstract:

Disclosed herein is a chiller apparatus containing refrigerant characterized by said refrigerant being HFO-1336that is trans isomer or primarily trans isomer. These chillers may be flooded evaporators or direct expansion evaporators, which utilize either centrifugal or screw compressors. Also disclosed herein are methods for producing cooling comprising evaporating trans-HFO-1336in an evaporator in the vicinity of a body to be cooled, thereby producing cooling. Also disclosed herein is a method for replacing HFC-236or CFC-114 refrigerant in a chiller apparatus, said method comprising providing HFO-1336to said chiller apparatus in place of the replaced refrigerant; wherein said HFO-1336is trans isomer or primarily trans isomer.

Composition Comprising Cis-1,1,1,4,4,4-Hexafluoro-2-Butene And Trans-1,2-Dichloroethylene, Apparatus Containing Same And Methods Of Producing Cooling Therein
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US Patent:

20120167599, Jul 5, 2012
Filed:

Sep 15, 2010
Appl. No.:

13/394420
Inventors:

Konstantinos Kontomaris - Wilmington DE, US
Assignee:

E.I. DU PONT DE NEMOURS AND COMPANY - Wilmington DE
International Classification:

F25B 45/00
F25B 1/00
F28D 15/00
C09K 5/04
F25D 31/00
US Classification:

62 77, 252 67, 62 56, 16510411, 62115
Abstract:

Disclosed herein is an air conditioning or refrigeration apparatus, and in particular, a chiller apparatus containing a composition comprising 1,1,1,4,4,4-hexafluoro-2-butene and 1,2-dichloroethylene, wherein the 1,1,1,4,4,4-hexafluoro-2-butene is cis isomer or primarily cis isomer and wherein the 1,2-dichloroethylene is trans isomer or primarily trans isomer. These chillers may be flooded evaporators or direct expansion evaporators, which utilize centrifugal compressors. Also disclosed herein are methods for producing cooling comprising evaporating a composition comprising cis-1,1,1,4,4,4-hexafluoro-2-butene and trans-1,2-dichloroethylene in the vicinity of a body to be cooled. Also disclosed herein are compositions comprising cis-1,1,1,4,4,4-hexafluoro-2-butene and trans-1,2-dichloroethylene, wherein the cis-1,1,1,4,4,4-hexafluoro-2-butene is present at 50 to about 60 weight percent.

Resumes

Technical Fellow

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Location:

702 Abbey Rd, Wilmington, DE 19808

Industry:

Chemicals

Work:

The Chemours Company
Technical Fellow
Dupont Jan 2007 - Jun 2015
Principal Investigator
Dupont May 1993 - Dec 2006
Senior Research Associate
Bp Dec 1990 - May 1993
Refining R and D Engineer

Education:

University of Illinois at Urbana - Champaign 1987 - 1990
Doctorates, Doctor of Philosophy, Chemical Engineering, Philosophy University of Illinois at Urbana - Champaign 1985 - 1987
Masters, Chemical Engineering

Skills:

R&D
Product Development
Process Engineering
Six Sigma
Process Improvement
Project Management
Manufacturing
Materials Science
Business Development
Research and Development
Process Simulation

Interests:

Gardening

Languages:

English
Greek