Solomon Aikins Dadebo

US Patent:

7292899, Nov 6, 2007

Filed:

Aug 15, 2005

Appl. No.:

11/203140

Inventors:

Solomon A. Dadebo - Williamsville NY, US
Thomas Craig Hanson - Buffalo NY, US

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

G05B 13/02
G06F 17/50
G06F 17/10
G06F 7/48
F25J 3/00

US Classification:

700 29, 703 1, 703 2, 703 6, 62643

Abstract:

A method of controlling a distillation column having control valves to control both reflux and the vapor rate within the column. In accordance with the present invention, a temperature sensed in a top section of the column is magnified and utilized within the model predictive controller so that control is more aggressive as temperatures increase beyond a threshold temperature. Additionally, in the distillation column, or in fact in any other system in which two or more manipulated variables control two or more common controlled variables, special modeling techniques are utilized to make controller tuning easier to accomplish. In such modeling techniques, each manipulated variable is assumed to be able to have an effect on a controlled variable by a single step response model and other step response models are utilized so that the other manipulated variable(s) that also would have an effect on the same controlled variable are taken into account by the controller as feed forward variables.

US Patent:

7881825, Feb 1, 2011

Filed:

Mar 28, 2007

Appl. No.:

11/729226

Inventors:

William R. Esposito - Amherst NY, US
Solomon Dadebo - Williamsville NY, US

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

G05B 21/00

US Classification:

700268, 700266, 429129

Abstract:

Method of controlling production of a plant incorporating one or more chemical processes in which products are produced through consumption of raw materials. In accordance with the method, current production rates of the products are computed by semi-empirical process models that are corrected through error corrections of actual production rates to produce corrected models. The production is then optimized using the corrected models to maximize the variable margin gained upon the sale of the products. The optimization yields targets that either directly or at least influence consumption of the raw materials. The raw materials are then introduced into the process or processes in accordance with the targets.

US Patent:

20130213479, Aug 22, 2013

Filed:

Feb 16, 2012

Appl. No.:

13/398482

Inventors:

Rommel M. Oates - Spring TX, US
Solomon Dadebo - Spring TX, US

International Classification:

F17D 1/00

US Classification:

137 1, 137605

Abstract:

A method and system for supplying additional hydrogen from a reservoir of stored hydrogen in a salt cavern to a hydrogen pipeline to assist in meeting customer demand for hydrogen is provided. Contaminants introduced while the stored hydrogen stream is in the salt cavern may cause the crude hydrogen stream to not have the required product purity specification. The stored hydrogen is removed from the salt cavern as a crude hydrogen stream and thereafter diluted with higher purity hydrogen formed from the pipeline to form a hydrogen product stream at or below the product purity specification. The hydrogen product can be formed without removal of any of the contaminants in the crude stream, thereby creating a more cost effective and simplified supply process compared to conventional processes employing a salt cavern for hydrogen supply.

US Patent:

6993403, Jan 31, 2006

Filed:

Mar 22, 2005

Appl. No.:

11/085554

Inventors:

Solomon A. Dadebo - Williamsville NY, US
Edward Katende - Lockport NY, US

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

G06F 19/00

US Classification:

700108, 702182

Abstract:

A method of monitoring plant performance within a facility in which having averages of cost contributing items such as raw material usage, product recovery, unit production efficiency, power usage and controller error performance are evaluated, statistically weighted to determine an overall performance factor. The overall performance factor applies an instantaneous indication of plant operation. Excursions of individual performance factors diagnose plant problems.

US Patent:

20170219168, Aug 3, 2017

Filed:

Apr 11, 2017

Appl. No.:

15/484587

Inventors:

Rommel M. Oates - Spring TX, US
Solomon Dadebo - Spring TX, US

International Classification:

F17D 3/00
F17C 1/00
F17D 1/02

Abstract:

A method and system for supplying additional hydrogen from a reservoir of stored hydrogen in a salt cavern to a hydrogen pipeline to assist in meeting customer demand for hydrogen is provided. Contaminants introduced while the stored hydrogen stream is in the salt cavern may cause the crude hydrogen stream to not have the required product purity specification. The stored hydrogen is removed from the salt cavern as a crude hydrogen stream and thereafter diluted with higher purity hydrogen formed from the pipeline to form a hydrogen product stream at or below the product purity specification. The hydrogen product can be formed without removal of any of the contaminants in the crude stream, thereby creating a more cost effective and simplified supply process compared to conventional processes employing a salt cavern for hydrogen supply.

US Patent:

20170174512, Jun 22, 2017

Filed:

Dec 18, 2015

Appl. No.:

14/973790

Inventors:

Rommel M. Oates - Spring TX, US
Solomon A. Dadebo - Spring TX, US
Douglas Prior - Lake View NY, US

International Classification:

C01B 3/02

Abstract:

The present invention relates generally to a method for supplying high purity hydrogen through a hydrogen supply system comprising in fluid communication one or more storage caverns, multiple hydrogen production sources, and a pipeline distribution system capable of delivering hydrogen to a plurality of hydrogen demand points which coordinates the operation of the cavern, hydrogen plants, and pipeline distribution system to meet the real time dynamic demand profile.

US Patent:

20170130902, May 11, 2017

Filed:

Jan 16, 2017

Appl. No.:

15/407035

Inventors:

Rommel M. Oates - Spring TX, US
Solomon Dadebo - Spring TX, US

International Classification:

F17D 3/00
B65G 5/00
F17C 1/00
F17D 1/02

Abstract:

A method and system for supplying additional hydrogen from a reservoir of stored hydrogen in a salt cavern to a hydrogen pipeline to assist in meeting customer demand for hydrogen is provided. Contaminants introduced while the stored hydrogen stream is in the salt cavern may cause the crude hydrogen stream to not have the required product purity specification. The stored hydrogen is removed from the salt cavern as a crude hydrogen stream and thereafter diluted with higher purity hydrogen formed from the pipeline to form a hydrogen product stream at or below the product purity specification. The hydrogen product can be formed without removal of any of the contaminants in the crude stream, thereby creating a more cost effective and simplified supply process compared to conventional processes employing a salt cavern for hydrogen supply.

US Patent:

20150101672, Apr 16, 2015

Filed:

Dec 18, 2014

Appl. No.:

14/574945

Inventors:

ROMMEL M. OATES - SPRING TX, US
SOLOMON DADEBO - EAST AMHERST NY, US

International Classification:

F17D 3/00

US Classification:

137 3, 137372

Abstract:

A method and system for supplying additional hydrogen from a reservoir of stored hydrogen in a salt cavern to a hydrogen pipeline to assist in meeting customer demand for hydrogen is provided. Contaminants introduced while the stored hydrogen stream is in the salt cavern may cause the crude hydrogen stream to not have the required product purity specification. The stored hydrogen is removed from the salt cavern as a crude hydrogen stream and thereafter diluted with higher purity hydrogen formed from the pipeline to form a hydrogen product stream at or below the product purity specification. The hydrogen product can be formed without removal of any of the contaminants in the crude stream, thereby creating a more cost effective and simplified supply process compared to conventional processes employing a salt cavern for hydrogen supply.