US 12,078,583 B2
Methods for classifying petroleum coke
Qiangyi Li, Naperville, IL (US); Christopher P. Eppig, St. Charles, IL (US); and Derrick P. Green, Fredericton (CA)
Assigned to BP Corporation North America Inc., Naperville, IL (US); and Green Imaging Technologies, Inc., Fredericton (CA)
Appl. No. 17/055,072
Filed by BP CORPORATION NORTH AMERICA INC., Naperville, IL (US); and GREEN IMAGING TECHNOLOGIES, INC., Fredericton (CA)
PCT Filed Jan. 17, 2019, PCT No. PCT/CA2019/050062
§ 371(c)(1), (2) Date Nov. 12, 2020,
PCT Pub. No. WO2019/140525, PCT Pub. Date Jul. 25, 2019.
Claims priority of provisional application 62/619,412, filed on Jan. 19, 2018.
Prior Publication US 2021/0223157 A1, Jul. 22, 2021
Int. Cl. G01N 15/08 (2006.01); G01N 1/28 (2006.01); G01N 24/08 (2006.01); G01R 33/44 (2006.01)
CPC G01N 15/088 (2013.01) [G01N 1/28 (2013.01); G01N 24/08 (2013.01); G01R 33/448 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of determining an identity of a petroleum coke sample comprising:
obtaining a nuclear magnetic resonance (NMR) measurement of the sample, determining a relaxation decay value of a fluid in the sample from the NMR measurement, determining a porosity value of the sample from the relaxation decay value, comparing the porosity value to porosity values of known petroleum coke materials in a reference group to determine whether the petroleum coke is one of the known materials.