Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Physical and chemical properties of selected Turkish lignites and their pyrolysis and gasification rates determined by thermogravimetric analysis
Date
2007-08-01
Author
Cakal, Gaye O.
Yücel, Hayrettin
Guruz, A. Guniz
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
21
views
0
downloads
Cite This
Pyrolysis and CO(2)-gasification behavior of lignites representing four different deposits in Turkey were investigated by Thermogravimetric Analysis (TGA) in the temperature range from 750 degrees C to 1000 degrees C. The rates of pyrolysis and CO(2)-gasification were evaluated from the corresponding TGA profiles. As expected, maximum pyrolysis rates for each coal were shown to be constant with respect to the final carbonization temperature. Lignites used in this study are from the tertiary period, chosen from major coal deposits in Turkey and their carbon contents are in the range of 60-70% (daf) based on ultimate analysis. They have shown different gasification reactivities under similar conditions and the reactivity sequence was found to be temperature dependent.
Subject Keywords
Lignite
,
CO2-Gasification
,
Pyrolysis
,
Reactivity
,
TGA
URI
https://hdl.handle.net/11511/30762
Journal
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
DOI
https://doi.org/10.1016/j.jaap.2007.03.005
Collections
Graduate School of Natural and Applied Sciences, Article
Suggestions
OpenMETU
Core
Magnetic ordering in two ferromagnetic sublattices of two mixed-valence iron(II)-iron(III) metal formate frameworks
Yurtseven, Hasan Hamit (2019-11-01)
Temperature dependence of magnetization (M) is calculated for two mixed-valence iron(II) - iron(III) metal formate frameworks (MOFs) with the two ferromagnetic sublattices below T-comp (compensation temperature) at 100 Oe by the molecular field theory. Temperature dependence of magnetization (M-T) is analyzed between T(comp )and T-ord = 39K (ordering temperature) by the power-law formula using the literature data for those compounds. Power-law analysis is also carried out for the field dependence of magneti...
SPATIAL VARIATIONS OF PARTICULATE ORGANIC MATTER (POM) COMPOSITION AND CONCENTRATIONS IN SURFACE WATERS AND SEDIMENTS OF THE MERSIN BAY
Akçay, İsmail; Tuğrul, Süleyman; Department of Oceanography (2015-9-8)
Spatial and temporal variations of hydrophysical properties (temperature, salinity, density), eutrophication-related parameters (nutrients, Chl-a, dissolved oxygen) and particulate organic matter (POM) concentrations and composition (C/N/P) in water column and surface sediments were examined at 33 stations between April 2014 and February 2015 in Mersin Bay located at northeastern (NE) Mediterranean. Regional and seasonal distributions of nutrients in the Mersin Bay are affected by human-induced pressures. H...
SPATIAL VARIATIONS OF PARTICULATE ORGANIC MATTER (POM) COMPOSITION AND CONCENTRATIONS IN SURFACE WATERS AND SEDIMENTS OF THE MERSIN BAY
Akçay, İsmail; Tuğrul , Süleyman; Department of Oceanography (2015-10-05)
Spatial and temporal variations of hydrophysical properties (temperature, salinity, density), eutrophication-related parameters (nutrients, Chl-a, dissolved oxygen) and particulate organic matter (POM) concentrations and composition (C/N/P) in water column and surface sediments were examined at 33 stations between April 2014 and February 2015 in Mersin Bay located at northeastern (NE) Mediterranean. Regional and seasonal distributions of nutrients in the Mersin Bay are affected by human-induced pressures. ...
Physical properties of anatase TiO2 altered by lanthanide atoms
Vural, Kıvılcım Başak; Ellialtıoğlu, Süleyman Şinasi; Toffoli, Daniele; Department of Physics (2015)
In this thesis, the structural, electronic and optical properties of adsorption of single lanthanide atoms (Pr, Gd, Er, and Lu) in anatase TiO2 (101) substrate have been investigated by using the first-principles calculations based on Hubbard U corrected term density functional theory (DFT+U). Here, among the lanthanides, we have primarily concentrated on Pr atom. TiO2 has attracted a material in various technological applications due to its chemical stability. In most of the technological applications such...
Seismic evidence of shallow gas in the sediment on the shelf off Trabzon, southeastern Black Sea
Okyar, M; Ediger, V (1999-04-01)
High-resolution seismic surveys carried out on the shelf off Trabzon (southeastern Black Sea) show that the sub-bottom stratigraphy consists of two main depositional sequences (A and B) one of which contains zones of acoustic turbidity. Of these, the upper depositional sequence (A) is thought to comprise Holocene sediments, while the lower depositional sequence (B) is interpreted as approximating to the Pleistocene. The boundary between these sequences is defined by a reflector (R), which is interpreted as ...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
G. O. Cakal, H. Yücel, and A. G. Guruz, “Physical and chemical properties of selected Turkish lignites and their pyrolysis and gasification rates determined by thermogravimetric analysis,”
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
, pp. 262–268, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30762.