Results 31 to 40 of about 272 (156)

A COMPARATIVE STUDY OF DATA-DRIVEN MODELING METHODS FOR SOFT-SENSING IN UNDERGROUND COAL GASIFICATION

Acta Polytechnica, 2019
Underground coal gasification (UCG) is a technological process, which converts solid coal into a gas in the underground, using injected gasification agents.
Ján Kačur, Milan Durdán, Marek Laciak, Patrik Flegner   +3 more
doaj   +1 more source

Research progress and key challenges in product regulation of deep coal underground gasification and CO2 sequestration in gasification chamber

Meitan xuebao
Underground Coal Gasification (UCG) is a chemical mining method that converts underground coal into combustible gases such as H2, CH4, and CO through controlled combustion. UCG is an important technical means for achieving clean and efficient utilization
Botao QIN, Huaizhan LI, Jian SHEN, Lele FENG, Maifan DONG   +4 more
doaj   +1 more source

Evaluation of Structural Changes in the Coal Specimen Heating Process and UCG Model Experiments for Developing Efficient UCG Systems

Energies, 2013
In the underground coal gasification (UCG) process, cavity growth with crack extension inside the coal seam is an important phenomenon that directly influences gasification efficiency. An efficient and environmentally friendly UCG system also relies upon
Gota Deguchi, Koutarou Ohga, Ken-ichi Itakura, Takuya Nakanowataru, Faqiang Su   +4 more
doaj   +1 more source

Cold Flow Simulation in Underground Coal Gasification (UCG) Cavities

Journal of Advanced Thermal Science Research, 2014
Underground coal gasification (UCG), in the recent years, have gathered a significant amount of interest from the researchers because of its advantages over conventional mining and utilization techniques. It is one of the most promising and innovative technology where coal is gasified in-situ by injection of a suitable oxidant for the production of ...
null Dipankar Chatterjee, null Satish Kumar Gupta, null Chebolu Aravind, null Rakesh Roshan   +3 more
openaire   +1 more source

Applicability of Acoustic Emission Monitoring to Estimate Gasification Area in Underground Coal Gasification

Journal of MMIJ
Underground Coal Gasification (UCG) is a promising process for recovering energy from potential underground coal resources as combustible gases such as hydrogen and carbon monoxide.
Akihiro HAMANAKA, Yuma ISHII, Ken-ichi ITAKURA, Fa-qiang SU, Jun-ichi KODAMA, Takashi SASAOKA, Hideki SHIMADA, Gota DEGUCHI   +7 more
doaj   +1 more source

The Underground Coal Gasification Process in Laboratory Conditions: An Experimental Study

Energies, 2023
The underground coal gasification (UCG) process represents a modern and effective coal mining technology that enables coal energy extraction through thermic decomposition.
Marek Laciak, Milan Durdán, Ján Kačur, Patrik Flegner   +3 more
doaj   +1 more source

Evaluation of a Compact Coaxial Underground Coal Gasification System Inside an Artificial Coal Seam

Energies, 2018
The Underground Coal Gasification (UCG) system is a clean technology for obtaining energy from coal. The coaxial UCG system is supposed to be compact and flexible in order to adapt to complicated geological conditions caused by the existence of faults ...
Fa-qiang Su, Akihiro Hamanaka, Ken-ichi Itakura, Gota Deguchi, Wenyan Zhang, Hua Nan   +5 more
doaj   +1 more source

Coal Seam Roof and Floor Lithology Prediction for Underground Coal Gasification Based on Deep Residual Shrinkage Network

Energy Science &Engineering, Volume 13, Issue 3, Page 1361-1374, March 2025.
This study proposes the deep residual shrinkage network (DRSN), a model combining advanced strategies for rapid and accurate lithology prediction. It enables efficient lithology evaluation in early underground coal gasification. ABSTRACT Lithology identification is a crucial task in coal underground gasification projects, serving as a prerequisite for ...
Jialiang Guo, Ruizhao Yang, Fengtao Han
wiley   +1 more source

Research progress on numerical simulation methods and models for underground coal gasification

Natural Gas Industry B
Coal underground gasification (UCG) transforms the physical extraction of coal into the chemical extraction of gas, which is effective for exploiting deep coal deposits.
Xiang'an Lu, Shanshan Chen, Zhen Dong, Jin Sun, Liangliang Jiang   +4 more
doaj   +1 more source

APPROACHES TO THE GAS CONTROL IN UCG

Acta Polytechnica, 2017
Underground Coal Gasification represents an alternative for conventional coal mining. This technology is also less expensive than traditional mining. It is expected that coal will be an important energy source in the coming decades.
Ján Kačur, Karol Kostúr
doaj   +1 more source