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Energy densification is the overall objective of the ongoing bioliq project. Bioslurry, which is obtained via the fast pyrolysis of low-grade biogenic resources, is converted to high-quality syngas in a high-pressure entrained-flow gasifier. The modeling of this three-phase system, involving high-pressure and high-temperature subprocesses, is very challenging. The detailed representation of the chemical subprocesses goes along with an increase of the computational cost. In this work, a novel approach is developed to achieve fast and accurate computational fluid dynamics (CFD) simulations of the gasification of a slurry fuel in a laboratory-entrained flow gasifier under atmospheric pressure. The method investigated relies on a sectional approach to describe the char gasification. An Euler–Euler approach is used for the modeling of the slurry/gas phase system. Ethylene glycol is used to represent the liquid part of the slurry. Experimental data for validation are taken from various experiments (S. Fleck et ...

A Sectional Approach for the Entrained-Flow Gasification of Slurry Fuels