1. POROSITY, MORPHOLOGY, AND STRUCTURAL TRANSFORMATIONS OF BITUMINOUS COAL CHAR CONVERSION UNDER A PORE DIFFUSION CONTROLLED REGIME: A COMPARISON OF CO2 GASIFICATION CONVERSION AND BURNOUT IN OXY-FUEL COMBUSTION Open Access Author: Thanasattayaviboon, Bowarnrat Title: POROSITY, MORPHOLOGY, AND STRUCTURAL TRANSFORMATIONS OF BITUMINOUS COAL CHAR CONVERSION UNDER A PORE DIFFUSION CONTROLLED REGIME: A COMPARISON OF CO2 GASIFICATION CONVERSION AND BURNOUT IN OXY-FUEL COMBUSTION Graduate Program: Energy and Mineral Engineering Keywords: CO2 gasificationoxy-fuel combustionpore diffusion controlled regimechar reactivitydegree of orderingporosityfragmentationparticle size distributionchar morphology File: Download Final_Thesis_Bowarnrat.pdf Committee Members: Jonathan P. Mathews, Thesis Advisor/Co-AdvisorSarma V. Pisupati, Committee MemberRandy L. Vander Wal, Committee Member