Influence of Ca-Based Sorbent Particle Size on the Occurrence of Solid-Solid Reactions during in-Situ Desulfurization of the coal-Derived Gas

摘要

The introduction of sorbdents in to the gasifier during in-situ desulfurization processes using calcium-based sorents leads to the occurrence of some reactions, mainly between the calcium (Ca) in the sorbents and some minerals contained in the ash, especially iron (Fe). These reactions, which are between solid phases (solid-solid), affect the absorption ability of the sorbents. The occurrence of solid-solid reactions, however, depends on a number of factors.