Recent developments in drying and dewatering for low rank coals

Z Rao, Y Zhao, C Huang, C Duan, J He - Progress in Energy and …, 2015 - Elsevier
Globally, low rank coals are responsible for about half of the world's total coal deposits.
However, these low rank coals present a high moisture content, which significantly impacts …

Thin-layer drying characteristics and modeling of Ximeng lignite under microwave irradiation

JF Zhu, JZ Liu, JH Wu, J Cheng, JH Zhou… - Fuel Processing …, 2015 - Elsevier
The thin-layer drying characteristics of Ximeng lignite (XL) were investigated under
microwave irradiation, and mathematical modeling using thin-layer drying models from …

Water extraction from high moisture lignite by means of efficient integration of waste heat and water recovery technologies with flue gas pre-drying system

X Han, J Yan, S Karellas, M Liu, E Kakaras… - Applied Thermal …, 2017 - Elsevier
The flue gas pre-dried lignite-fired power system (FPLPS) integrates the fan mill flue gas
dryer with an open pulverizing system and yields an increase of the boiler efficiency …

Investigation of technical and economic aspects of pre-dried lignite utilisation in a modern lignite power plant towards zero CO2 emissions

M Agraniotis, A Koumanakos, A Doukelis, S Karellas… - Energy, 2012 - Elsevier
The pre-drying technology is expected to play an important role in the next generation of
brown coal power plants. The integration of the fluidised bed drying system with internal …

Simulation study on lignite-fired power system integrated with flue gas drying and waste heat recovery–Performances under variable power loads coupled with off …

X Han, M Liu, J Wang, J Yan, J Liu, F Xiao - Energy, 2014 - Elsevier
Lignite is a kind of low rank coal with high moisture content and low net heating value, which
is mainly used for electric power generation. However, the thermal efficiency of power plants …

Thermodynamic analysis and comparison of retrofitting pre-drying concepts at existing lignite power plants

K Atsonios, I Violidakis, M Agraniotis… - Applied Thermal …, 2015 - Elsevier
Lignite is considered as a domestic and abundant energy source for several countries.
However, its high ash and moisture content have a negative effect on power plant efficiency …

Potential and methods for increasing the flexibility and efficiency of the lignite fired power unit, using integrated lignite drying

H Pawlak-Kruczek, Ł Niedźwiecki, M Ostrycharczyk… - Energy, 2019 - Elsevier
Present increase in the flexibility of coal power plants is a very important and complicated
task. The paper discusses the problem of improving the flexibility and efficiency of the power …

Thermodynamic analysis of an improved flue gas pre-dried lignite-fired power system integrated with water recovery and drying exhaust gas recirculation

X Han, M Liu, J Yan, S Karellas, J Wang… - Drying Technology, 2020 - Taylor & Francis
Lignite is a domestic strategic reserve of low rank coals in many countries owing to its
abundant resource and competitive price. Combustion for power generation is still an …

Thermal simulation and economic study of predried lignite production retrofit of a Greek power plant for enhanced flexibility

I Avagianos, I Violidakis, E Karampinis… - Journal of Energy …, 2019 - ascelibrary.org
The use of predried lignite as a factor to enhance flexibility of existing power plants is
considered as a practically feasible step to ensure power supply and grid stability. In this …

Thermal analyses of the lignite combustion in oxygen-enriched atmosphere

X Chen, Y Zhang, Q Zhang, C Li, Q Zhou - Thermal Science, 2015 - doiserbia.nb.rs
In this work, the oxygen-enriched combustion behavior of indigenous lignite was measured
by a thermogravimetric analyzer (TG). Combustion tests were carried out in N2/O2 …