Diffusion of Solvents in Coals 1 Measurement of Diffusion Coefficients of Pyridine in Elbistan Lignite
Yazarlar (2)
Prof. Dr. Meryem SEFERİNOĞLU Sinop Üniversitesi, Türkiye
Yuda Yürüm
Hacettepe Üniversitesi, Türkiye
Hacettepe Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Energy and Fuels (Q1) | ||
| Dergi ISSN | 0887-0624 Dergi Bilgileri (2001) | ||
| Dergi Tarandığı Indeksler | SCI | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2001 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 02-12-2000 |
| Cilt / Sayı / Sayfa | 15 / 1 / 135–140 | DOI | 10.1021/ef000159x |
| Makale Linki | http://pubs.acs.org/doi/abs/10.1021/ef000159x | ||
| UAK Araştırma Alanları |
Dedektör Teknolojisi
|
||
| Özet |
| The aim of the present report is to measure the diffusion coefficients at temperatures about 20−27 °C, the activation energies of diffusion, and to determine the type of transport mechanism of diffusion of pyridine in macromolecular structure of Turkish Elbistan lignite (C: 53.0 wt %, dmmf). The raw coal sample was demineralized with HCl and HF by standard methods. The raw and demineralized coal samples were extracted with pyridine. Pyridine uptake of the coal samples was recorded at temperatures 20−27 °C in an adiabatic setup until a constant weight was attained. The extent of swelling of original and treated coal samples in pyridine were measured. Pyridine extraction created a fraction of enlarged particle size due to irreversible solvent swelling. The diffusion coefficients were measured from the slope of graphs of Mt/M∞ versus t1/2. The diffusion of pyridine in the raw coal seemed to be less, compared to … |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Scopus | 9 |
| Google Scholar | 12 |