Results 31 to 40 of about 4,442 (238)

TRANSPORTATION OF COAL BY SEA AND RISKS ASSOCIATED WITH ITS TRANSPORTATION

International Journal of Advanced Studies, 2022
Maritime and maritime transport is a vital component of the global economy and transport network. The number of people, firms and organizations using shipping is growing worldwide. As with other transport systems, safety is critical in maritime transport.
Sergey Yu. Nikolashin, Timur R. Khabirov
doaj   +1 more source

Impact of hydrodynamics on coal liquefaction. Final technical report [PDF]

, 1983
We have attempted to determine the hydrodynamic effects of various reactor configurations on coal liquefaction, to help select the optimal reactor configuration and to provide additional understanding of coal liquefaction reaction kinetics, which cannot ...
Givens, E.N., Kang, D., Ying, D.H.S.
core   +1 more source

Coal liquefaction

Applied Catalysis, 1983
This general paper reviews Canadian programs in Coal Liquefaction research, development and economic assessment. The current "state of the art" of coal liquefaction technology is seen to be unlikely to offer immediate prospects for implementation during a period when crude oil supply costs are below $ 45 per barrel.
openaire   +2 more sources

Molecular Dynamics Study on the Mechanism of Coal High-Temperature Pyrolysis Based on Machine Learning Potential

Chemistry
Understanding the atomic-scale mechanisms of coal pyrolysis is essential for efficient coal utilization and carbon-neutral energy strategies, yet conventional computational approaches often struggle to balance between the high accuracy of quantum ...
Menghao Ren, Rongheng Gou, Hanyu Chen, Tian-Min Wu, Shansong Gao, Dao Li, Haisheng Li, Qing Zheng, Yanjun Zhang   +8 more
doaj   +1 more source

Research on the maceral characteristics of Shenhua coal and efficient and directional direct coal liquefaction technology

International Journal of Coal Science & Technology, 2014
In this research, molecular structure models were developed respectively for Shenhua coal vitrinite concentrates (SDV) and inertinite concentrates (SDI), on the basis of information on constitutional unit of Shenhau coal and elemental analysis results ...
Geping Shu, Yuzhuo Zhang
doaj   +1 more source

Cooperative research in coal liquefaction. Final report, May 1, 1990-- April 30, 1991 [PDF]

, 1992
The Consortium for Fossil Fuel Liquefaction Science (CFFLS) is currently engaged in a three year contract with the US Department of Energy investigating a range of research topics dealing with direct coal liquefaction.
Huffman, G. P.
core   +1 more source

Mechanistic Insights into Iron–Sulfur Clusters for Direct Coal Liquefaction: A Combined First-Principles and Machine Learning Study

Chemistry
Direct Coal Liquefaction (DCL) is a promising route for converting abundant coal resources into liquid fuels, yet its efficiency remains strongly dependent on catalyst performance.
Jing Xie, Caoran Li, Shansong Gao, Zhening Chen, Rongheng Gou, Lei Gong, Xiangfeng Yu, Dao Li   +7 more
doaj   +1 more source

Integration and Evaluation of Power Generation System with Extract Residue of Coal Liquefaction Residue

Taiyuan Ligong Daxue xuebao, 2022
Extract residue of coal liquefaction residue (ERCLR) is a solid mixture of high carbon, high ash, high sulfur, and complex composition, mainly including unconverted coal, inorganic minerals, and coal liquefaction catalyst.
Yaxian ZHAO, Yingjie ZHAO, Guochun YAN, Jianli WANG, Weimin LU, Yi LI, Jiancheng WANG, Qun YI, Weiren BAO, Liping CHANG   +9 more
doaj   +1 more source

Composition and structure of extraction residue of direct coal liquefaction residue and recycle of active phase of iron catalyst

Meitan xuebao
In order to solve the problem of iron source supply for large-scale direct liquefaction catalyst, and meanwhile realize the harmless separated-utilization of extraction residue from coal liquefaction, this paper conducted a research on the recovery of ...
Dao LI, Shansong GAO, Hongxue WANG, Jing XIE, Shifu CHENG, Qianhao WANG   +5 more
doaj   +1 more source

Thermal Calculations for Co‐Firing of Hydrogen/Ammonia and Coal in 660‐MW Coal‐Fired Boilers

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To achieve a clean energy transition under the dual carbon goals, blending hydrogen/ammonia into pulverized coal boilers represents a key technological pathway. Different hydrogen/ammonia co‐firing ratios (5%–50%) are investigated for their impact on the thermodynamic characteristics of 660‐MW supercritical boiler at 100% and 20% boiler ...
Yaodong Da, Nana Hou, Weipeng Wang, Yongqiang Chang, Xin Liu, Feng Pan, Defu Che, Lei Deng   +7 more
wiley   +1 more source