Influence of thermoplastic properties on coking pressure generation: Part 3 - Evidence and role of pore coalescence in the mechanism for pressure generation

- Pore behaviour during coal carbonisation has been tracked using rheometry.
- Plate gap and axial force accurately track pore nucleation, growth and coalescence.
- Open porosity increases when plate gap decreases and/or axial force decreases.
- Results reinforce hypothesis that pore coalescence reduces oven wall pressure.