Roy R Bledsoe

US Patent:

20060213554, Sep 28, 2006

Filed:

Mar 23, 2005

Appl. No.:

11/088429

Inventors:

William Welch - Ashland KY, US
Roy Bledsoe - Huntington WV, US
Brian Wilt - Flatwoods KY, US

International Classification:

G05D 11/00

US Classification:

137093000

Abstract:

A process and system for the analysis and/or control of a mixture of liquid hydrocarbons and biodiesel to determine biodiesel concentration includes a) measuring the near infrared absorption in at least two of the bands of two absorption bands from a portion of the range of 800-2500 nm; in particular 1100-2500 nm which are used to quantify the biodiesel content. b) taking each of the absorbances measured, or a mathematical function thereof, c) performing at least one mathematical computing or statistical treatment using the above absorbances or functions as individual independent variables, d) assigning and applying weighting constants or their equivalents to the independent variables, and, optionally e) applying the above steps using known compositions to calibrate the instrument and determine the weighting constants or equivalents, and further optionally f) outputting a signal indicative of the biodiesel concentration in the mixture, based on the absorbances or functions.

US Patent:

20070212790, Sep 13, 2007

Filed:

Jan 19, 2007

Appl. No.:

11/656320

Inventors:

William T. Welch - Ashland KY, US
James F. Hoffman - Huntington WV, US
Brian K. Wilt - Flatwoods KY, US
Roy Roger Bledsoe - Huntington WV, US
Michael B. Sumner - Kenova WV, US
Jeff Sexton - Findlay OH, US

International Classification:

G01N 33/00

US Classification:

436139

Abstract:

A monitoring of catalytic cracking processing is provided which uses near infrared (NIR) analysis to characterize cracking feeds, intermediates and products for chemical and physical properties such as saturates, monoaromatics, diaromatics, triaromatics, tetraaromatics, polar aromatics, total aromatics, thiophenes, distillation points, basic nitrogen, total nitrogen, API gravity, total sulfur, MCRT and % coker gasoil and the resulting characterization thereof. The NIR results can be used in FCC simulation software to predict unit yields and qualities.

US Patent:

57124817, Jan 27, 1998

Filed:

Jul 23, 1996

Appl. No.:

8/685364

Inventors:

William T. Welch - Ashland KY
Michael B. Sumner - Huntington WV
Brian K. Wilt - Ashland KY
Roy Roger Bledsoe - Huntington WV
Steven M. Maggard - Ashland KY

Assignee:

Ashland Inc - Ashland KY

International Classification:

G01J 502

US Classification:

25033912

Abstract:

In addition to analysis in the infrared spectra of hydrocarbon group types, it has now been found that certain hydrocarbon species, including preferably aromatic species such as benzene, toluene, xylene, and alkyl benzenes such as ethyl benzene, can be determined by measuring absorption in certain selected wavelengths in the infrared spectra, then manipulating the data, e. g. , preferably by taking the first or higher derivative, and applying statistical techniques, preferably multiple linear regression (MLR) to provide an output signal indicative of the concentration of the particular specie. The output signal can be used to control refinery and chemical processes, e. g. , reforming, catalytic cracking, alkylation and isomerization. In manufacturing reformulated fuels, government regulations can be complied with by utilizing the invention to blend fuels which have a maximum of benzene or other regulated components.

US Patent:

61406473, Oct 31, 2000

Filed:

Dec 19, 1997

Appl. No.:

8/994787

Inventors:

William T Welch - Ashland KY
Roy R. Bledsoe - Huntington WV
Brian K. Wilt - Ashland KY
Michael B. Sumner - Huntington WV

Assignee:

Marathon Ashland Petroleum

International Classification:

G01J 342

US Classification:

25033912

Abstract:

Reformulated gasoline (RFG) testing recently required by EPA involves measuring sulfur, olefin, aromatic contents, Reid Vapor Pressure (RVP), and benzene, distillation properties, plus total air pollutants (TAPs), volatile organic carbon (VOC), and nitrogen oxides (NOx). Measuring driveability, although not required, is desirable. All of these tests can be conducted by spectrometer, preferably in the IR range, more preferably in the NIR range, and most preferably by a single instrument operating at high-correlation wavelengths. Importantly, VOC, TAP, NOx, and RVP may be correlated to IR absorbance at certain bands. Statistical methods including PLS, MLR, PCR, and neural networks can be used and derivatives of first, particularly second, or other orders can be used. Results can be displayed on a single screen.