Programme  Titles  Presenters  Topics  4. Pyrolysis Tuesday, October 20, 2009, 8:00 - 9:40 AM Petroleum Hall, Green Center Chair: William Taciuk, AECOM; Neil Bostrom, Schlumberger 04.1 Realistic oil shale pyrolysis programs: kinetics and quantitative analysis Neil Bostrom*, Gabriela Leu, Malka Machlus, Andrew E. Pomerantz, Robert L. Kleinberg 04.2 Test results relating to changes in oil yield and gas compositions of various oil shales subjected to short to medium time and temperature exposure at atmospheric pressure William Taciuk 04.4 Effect of oil shale particle size on oil yield, sulfur and distillation fractions Omar Al-Ayed*, Zaid Al-Anbar 04.3 Permeability changes of fractured oil shale cores during retorting Earl Mattson*, Carl Palmer, Erik Johnson, Hai Huang, Tom Wood