Results 61 to 70 of about 56,023 (314)

Energy Efficiency and Economic Aspects of Mining Wastes Utilization within the Closed Cycle of Underground Gas Generator [PDF]

, 2017
Energy efficiency of coal gasification with possible utilization of mining wastes within ecologically closed gas generator cycle has been considered.
CABANA, Edgar Cáceres, DYCHKOVSKYI, Roman, FALSHTYNSKYI, Volodymyr, PIVNYAK, Gennadiy   +3 more
core   +1 more source

Development of CAVLAB—A Control-Oriented MATLAB Based Simulator for an Underground Coal Gasification Process

Mathematics, 2023
The Cavity Simulation Model (CAVSIM) is a 3D, parameterisable simulator of the Underground Coal Gasification Process (UCG) that serves as a benchmark for UCG prediction.
Afaq Ahmed, Syed Bilal Javed, A. Uppal, J. Iqbal   +3 more
semanticscholar   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

Advanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira, Md Mahbubur Rahman, Karib Hassan Khan, Md Nizam Uddin, Dewan Hafiz Nabil   +4 more
wiley   +1 more source

Using Mathematica software for coal gasification simulations – Selected kinetic model application

Journal of Sustainable Mining, 2015
Coal gasification is recognized as a one of promising Clean Coal Technologies. As the process itself is complicated and technologically demanding, it is subject of many research.
Sebastian Iwaszenko
doaj   +1 more source

Sensitivity analysis and stochastic optimization of levelized cost of hydrogen production through methane pyrolysis

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Hydrogen plays a crucial role across multiple industrial sectors and is increasingly recognized as a clean energy carrier with significant potential in decarbonization efforts. Methane pyrolysis (MP), particularly using molten metal catalysts, offers a promising pathway for hydrogen production with low CO2 emissions.
Adrian Paredes Bozzo, Zukui Li
wiley   +1 more source

Multifield evolution characteristics of underground coal gasification under dynamic evolution of combustion zone

Meitan xuebao
As a comprehensive utilization technology of clean coal, underground coal gasification has become a strategic direction of innovation in harmless coal mining technology under the background of dual carbon.
Dawei YIN, Xiaotian YUAN, Guanglei ZHOU, Lin XIN, Zesen ZHOU, Zihan WANG   +5 more
doaj   +1 more source

Comparison of Tar Samples from Reaction Zone and Outlet in Ex-Situ Underground Coal Gasification Experiment

Energies, 2021
Tar remaining in the gasification cavity during underground coal gasification (UCG) is an important pollution source, while the reported studies only focus on the tar behavior at the outlet.
Lele Feng, Maifan Dong, Yuxin Wu, Junping Gu   +3 more
doaj   +1 more source

Revisiting the underground gasification of coal reserves from contiguous seams [PDF]

, 2016
Purpose. Substantiating of contiguous coal seams coefficient during application of borehole underground coal gasification technology based on dependences of interstratial rocks subsidence on gasification duration. Methodology.
Dychkovskyi, R.O, Lozynskyi, V.H, Malanchuk, Ye.Z, Malanchuk, Z.R, Saik, P.B   +4 more
core  

Nonsilting transport characteristics of coal slurry in a deep underground fluidization conveying pipeline under the action of a guide vane swirler

Deep Underground Science and Engineering, EarlyView.
Aiming at the scientific frontiers of in situ fluidized mining of deep resources, a deep coal fluidized pipeline lifting system based on hydraulic conveying has been proposed. To solve the issue of particle sedimentation of large particles in horizontal connection sections, a solution involving the installation of guide vane‐type swirlers in the ...
Jiusheng Bao, Shaodi Zhao, Yan Yin, Zhongbin Wang, Shuai Liu, Shirong Ge   +5 more
wiley   +1 more source

Study on CRIP process of underground coal gasification coupled with high-power microwave heating

Meitan kexue jishu
The Controlled Retraction Injection Point (CRIP) process of underground coal gasification can mine in situ medium-deep coal resources efficiently and transform rich coal resources in China into strategic and scarce gas resources.
Tengze GE, Chuangye WANG, Meng LIU, Danlu LIU, Ersi GAO, Song WU, Shuxia YUAN, Yuguang FAN   +7 more
doaj   +1 more source