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Distribution of volatile sulphur containing products during fixed bed pyrolysis and gasification of coals
Author(s) -
Furimsky Edward,
Palmer Allan D.,
Cheng Meng
Publication year - 1991
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450690408
Subject(s) - pyrolysis , coal , sulfur , coal gasification , bituminous coal , stage (stratigraphy) , asphalt , chemistry , carbochemistry , mineralogy , chemical engineering , materials science , geology , organic chemistry , coal liquefaction , engineering , composite material , paleontology
Abstract Three sub‐bituminous and two bituminous coals from Western Canada were used to study the evolution of H 2 S, COS and SO 2 during the pyrolysis and gasification processes in a fixed bed reactor. For all types of coals, most of H 2 S and SO 2 were released during the devolatilization stage. COS was formed only during the gasification stage in the presence of CO 2 . The mineral matter of coal may have played a role during the gasification stage. Some observations made during this latter stage in CO 2 and/or steam were interpreted in terms of the equilibrium effects.