Carl H. Thomas
Engineering at Hyacinth Ave, Baton Rouge, LA
License number
Louisiana PE.0004572
Issued Date
Feb 8, 1955
Category
Civil Engineer
Address
Address
5845 Hyacinth Ave, Baton Rouge, LA 70808
Professional information
On-Line Control Of A Chemical Process Plant
US Patent:
6072576, Jun 6, 2000
Filed:
Dec 8, 1997
Appl. No.:
8/986971
Inventors:
Michael F. McDonald - Kingwood TX
Robert L. Long - Houston TX
Carl J. Thomas - Baton Rouge LA
Robert L. Long - Houston TX
Carl J. Thomas - Baton Rouge LA
Assignee:
Exxon Chemical Patents Inc. - Houston TX
International Classification:
G01J 342, G01J 344, G01N 2135
US Classification:
356300
Abstract:
A process plant for the manufacture of halobutyl rubber is provided with online monitoring and control of the process parameters to control the properties of the product. It incorporates an in-situ measurement system that does not require the removal of any sample material from the process. It uses a Fourier Transform Near Infrared (FTNIR) spectrometer, fiber-optic cables, a viscometer for measuring solution viscosity and a Resistance Temperature Device (RTD) for temperature measurement. An online real-time analyzer system using a Constrained Principal Spectral Analysis program predicts the property of the polymer product and provides the process control system with analysis of the data using derived relationships between the physical properties of the polymer and these spectral measurements and the measured values of fluid viscosity and temperature. Differences between the predicted and desired property of the product are used to control process parameters. The method can be used for a variety of chemical process plants.
Method And Apparatus For On-Line Measurement Of Polymer Properties
US Patent:
7307257, Dec 11, 2007
Filed:
Dec 20, 2002
Appl. No.:
10/499794
Inventors:
Robert L. Long - Houston TX, US
Stephen K. Morgan - Deham Springs LA, US
Carl J. Thomas - Baton Rouge LA, US
Stephen K. Morgan - Deham Springs LA, US
Carl J. Thomas - Baton Rouge LA, US
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
G01N 21/00
US Classification:
25033909
Abstract:
The invention is a method and apparatus for on-line measurement of polymer properties such as moisture content, ethylene content, Epoxidized Soy Bean Oil (ESBO) content, calcium stearate content and ethylidene norbornene (ENB) content.
Method And Apparatus On-Line Measurement Of Polymer Properties
US Patent:
2008004, Feb 21, 2008
Filed:
Jul 18, 2007
Appl. No.:
11/879629
Inventors:
Robert Long - Houston TX, US
Stephen Morgan - Denham Springs LA, US
Carl Thomas - Baton Rouge LA, US
Oscar Broussard - Baton Rouge LA, US
Stephen Morgan - Denham Springs LA, US
Carl Thomas - Baton Rouge LA, US
Oscar Broussard - Baton Rouge LA, US
International Classification:
G01N 21/00
US Classification:
250339090
Abstract:
The invention is a method and apparatus for on-line measurement of polymer properties such as moisture content, ethylene content, Epoxidized Soy Bean Oil (ESBO) content, calcium stearate content and ethylidene norbornene (ENB) content.