Open AccessCO 2 Gasification of Charcoals in the Context of Metallurgical Application
Author(s) -
Hau-Huu Bui,
Liang Wang,
KhanhQuang Tran,
Øyvind Skreiberg,
Apanee Luengnaruemitchai
Publication year - 2017
Publication title -
energy procedia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.474
H-Index - 81
ISSN - 1876-6102
DOI - 10.1016/j.egypro.2017.03.320
Subject(s) - carbonization , materials science , porosity , reactivity (psychology) , carbon fibers , context (archaeology) , metallurgy , chemical engineering , kinetic energy , composite material , scanning electron microscope , engineering , medicine , paleontology , alternative medicine , pathology , composite number , physics , quantum mechanics , biology
The CO 2 gasification reactivity of Norwegian spruce charcoals from stem wood and its forest residue produced at different pressures was investigated in the present study. The gasification behavior was analyzed thermogravimetrically at different gasification temperatures of 800, 850 and 950 o C, followed by a kinetic modelling applying the random pore model (RPM) and overlapped grain model (OGM). It is found that gasification temperature has a considerable influence on the reactivity of charcoals. Higher carbonization pressures reduce the gasification reactivity of the produced charcoals towards CO 2 . The employed kinetic models represents well the experimental data. The initial porosity computed through the OGM is found to depend on the carbonization pressure. The activation energy is found in the range of 210 to 230 kJ/mol, in line with the values reportedin the literature.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom