Pearson Coal Petrography

Fingerprinting your coals, cokes, and carbons


For nearly three decades, Pearson and Associates has maintained a strong research interest, with special emphasis on petrographic prediction of coke quality (1, 2, 3, 4, 9); automated microscopy (5, 6, 7, 8, 9); development of new methods of data interpretation (5); and reactivity of inertinites in western Canadian coal (3, 9).
Dr. Pearson delivered papers at Iron & Steel Society annual conferences in Washington (1990), Toronto (1992 & 1998), & Chicago (1994).

Since 2012, our research has been more focused on Coke Petrography (11, 12, 13, 14,15).  More recently joint projects with University of Newcastle (-in process-) and CSIRO (17) have been published.

Both Dave & Jen Pearson are actively involved in the International Committee for Coal and Organic Petrology – ICCP.  Between 1990 and 1994, and from 2001 to 2008, Dave Pearson was convenor of the ICCP’s Working Group on Automation.

Some published papers on coal and coke research include:

  1. Anomalous coking properties of the Wolgan Seam, NSW, Australia. 1980 Fuel. Vol 59 438-440
  2. Quality of western Canadian Coking Coal. 1980. CIMM Bull.Vol 73. 70-84.
  3. Rank variation, coalification pattern and coal quality in the Crowsnest coalfield, British Columbia. 1985. CIMM Bull. Vol 78. 39-46.
  4. Reactivity of Inertinite (coal-typing) of western Canadian Coals. 1985 International Conference on Coal Science, Sydney, Australia. Proc.907-908.
  5. Influence of Geology on CSR (Coke Strength after Reaction with CO2). 1989. In Advances in western Canadian Coal Geoscience. Alberta Research Council Info. Series 103. 174-183.
  6. Probability analysis of Blended Coking Coals. 1991. Int. J. Coal Geology Vol 19. 109-119.
  7. Probability Statistics in the Monitoring of Coal Blends. 1991 (Washington) Ironmaking Conference Proceedings, 50-51.
  8. High speed automated petrographic analysis of coke battery charges. 1992 (Toronto) Ironmaking Conference Proceedings, 50-51.
  9. Numerical Modeling of Reflectance of Coking Coals. 1994 (Chicago) Ironmaking Conference Proceedings, 50-51.
  10. Fusible Inertinites in Coking Coals. 1998 (Toronto) ICSTI/Ironmaking Conference Proceedings, 753-75
  11. Bireflectance Mapping and Automated Petrographic Analysis of Metallurgical Coke, 2012 (Atlanta) Association of Iron & Steel Technology Conference Proceedings, 247-251.
  12. Application of Automated Petrography to Characterize Quality Distribution in Slot-Oven and Non-Recovery Coke Ovens, 2012 (Rio De Janeiro) ICSTI/Ironmaking Conference Proceedings.
  13. The Petrography of Metallurgical Coke, 2013 (Pittsburgh) Association of Iron & Steel Technology Conference Proceedings, 293-306.
  14. Quantitative Reflectance Measurements of Metallurgical Coke, 2013 (Brisbane) 10th Australian Coal Science Conference Proceedings.
  15. Bireflectance Studies of Plastometer Semi-Coke Residues, 2014 (Indianapolis) Association of Iron & Steel Technology Conference Proceedings
  16. Quality and Classification of Metallurgical Coke, 2015 (Cleveland) Association of Iron & Steel Technology Conference Proceedings.
  17. Determining fusibility of inertinite by comparison of matched coal and coke surfaces using imaging analysis methods, 2015 (Dusseldorf) METEC and 2nd ESTAD Conference Proceedings.
  18. Porosity of Metallurgical Coke, 2016 (Pittsburgh) Association of Iron & Steel Technology Conference Proceedings, 370-007.
  19. Forecasting Coke Quality From mW Power Measurements Recorded During Plastic Layer Advance by a Sapozhnikov Plastometer, 2016 (Pittsburgh) Assocation of Iron & Steel Technology Conference Proceedings, 370-006.
  20.  Encapsulites, and the suppression of internal gas pressure in industrial metallurgical coke blends, 2017 Fuel Volume 200, Pages 545-554.
  21. New Trends in Coal Conversion: Combustion, Gasification, Emissions, and Coking, 2019 Chapter 9, Pg 247-262

Posters and Marketing Material

  1. Coal Quality from Automated Fluorescence Imaging Microscopy
  2. Fingerprinting Coking coals & Blends
  3. Fingerprinting Steam coals & Blends
  4. Influence of Fluorescing Vitrinite on the Fluidity of some Bowen Basin coals.
  5. Contact metamorphic aureoles in some Bowen Basin coals