Premium
Kinetics of decarburization of molten fe‐c by gaseous hydrogen
Author(s) -
Whiteway S. G.
Publication year - 1979
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.5450570112
Subject(s) - decarburization , carbon monoxide , crucible (geodemography) , hydrogen , mass transfer , chemistry , carbon fibers , water gas , mass transfer coefficient , reaction rate , analytical chemistry (journal) , kinetics , inorganic chemistry , materials science , catalysis , syngas , organic chemistry , chromatography , computational chemistry , composite number , composite material , physics , quantum mechanics
Hydrogen was directed onto the surface of Fe‐4%C held in an Al 2 O 3 crucible at 1327°C, and the rate of formation of CH 4 was measured by mass‐spectrometric analysis of the effluent. The measured rate approached the theoretical limit of mass transfer of CH 4 in the gas phase, provided that the concentration of other gases evolved by side‐reactions was small. Deviations from predicted values appeared to be caused by carbon monoxide coming from the reaction of dissolved carbon with the crucible, and water coming from the reaction of hydrogen with the refractories. The gas mass transfer coefficient for the particular geometry used was determined in separate experiments where the carbon was oxidized by CO 2 .