Image analysis – Applications – Surface texture or roughness measuring
Reexamination Certificate
2005-10-11
2005-10-11
Johns, Andrew W. (Department: 2621)
Image analysis
Applications
Surface texture or roughness measuring
Reexamination Certificate
active
06954545
ABSTRACT:
An improved test for quantifying luster of petroleum products in particle form, especially coke, as an index of quality. A representative sample of the product is obtained and prepared. A digital image of the sample is formed using a scanner. The image is then processed digitally to produce a representative luster or optical density measurement for the sample. The preceding process may be repeated several times for each sample and the resultant luster or optical density measurements for each iteration are totaled and averaged. Once the luster measurement or optical density for the sample is obtained, it is compared to established parameters to assign a CTE value to the sample, assuming there is sufficient historical data correlating the two measurements. Various refining operating parameters including feedstocks, temperatures and pressures, may be altered to obtain a desired product.
REFERENCES:
patent: 4617682 (1986-10-01), Mori et al.
patent: 4641036 (1987-02-01), Ohno et al.
patent: 5132791 (1992-07-01), Wertz et al.
patent: 5432595 (1995-07-01), Pechersky
patent: 5440648 (1995-08-01), Roberts et al.
patent: 5443164 (1995-08-01), Walsh et al.
patent: 5828500 (1998-10-01), Kida et al.
patent: 5841882 (1998-11-01), Celeski
Carbon vol. 34, No. 3, pp. 375-385, 1996, Elsevier Science Ltd “An Automatic Image Analysis of Coke Texture” By Eilertsen et al.
“Evaluation of Needle Coke Appearance By Illumination By Reflected Light,” Koa Poster at 1997 Carbon Conference, K. Matsuoka, et al., Needle Coke Quality Control and Research Laboratory Section, Marifu Refinery KOA Oil Co., Ltd.
KOA Pre-Prints to 1997 Carbon Conference; “Carbon '97,” 23rdBiennial Conference on Carbon Jul. 18-23, 1997; Extended Abstracts and Program, vol. II—Carbonization / Industrial / Carbon Growth / Fibers, The American Carbon Society and Penn State, “Evaluation of Needle Coke Appearance by Illumination by Reflected Light,” pp. 238-239.
“Digital Image Analysis: Basic Principals and Industrial Research Applications,” by Paige Johnson of Conoco Inc., presented at the OSU College of Osteopathic Medicine, Feb. 26, 1998.
Jozavi Hooshang
Welch Gary E.
Conocophillips Company
Johns Andrew W.
Nakhjavan Shervin
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