The qualification of coal degradation with the aid of micro-focus computed tomography

@article{Viljoen2015TheQO,
  title={The qualification of coal degradation with the aid of micro-focus computed tomography},
  author={Jacob Viljoen and Q. Campbell and M. L. Roux and J. Hoffman},
  journal={South African Journal of Science},
  year={2015},
  volume={111},
  pages={115-124}
}
Southern African Coal Processing Society; South African Research Chairs Initiative of the Department of Science and Technology and National Research Foundation (NRF) of South Africa (Coal Research Chair grant no. 86880) 
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References

SHOWING 1-10 OF 54 REFERENCES
The use of X-ray computed tomography in the characterisation of coal and associated char reductants
Abstract High quality char, produced during the initial coal gasification process, is commonly utilised as a reductant during the smelting of chromite ores. The rate of the gasification reaction and… Expand
Effect of different types of impact surface on coal degradation
Abstract Degradation characteristics of South Blackwater and Ensham coal from the stockpiles of Gladstone Port Authority were tested by using a drop tests apparatus to minimise the fines generation… Expand
Characteristics of the Micro-Focus X-ray Tomography Facility (MIXRAD) at Necsa in South Africa
The South African National Centre for Radiography and Tomography (SANCRAT), located at Necsa, strives to be leaders in utilizing ionizing radiation as imaging probes in research and development as… Expand
Applications of X-ray computed tomography in the geosciences
Abstract X-ray computed tomography (CT) is a non-destructive technique with wide applications in various geological disciplines. It reveals the internal structure of objects, determined by variations… Expand
High-resolution X-ray computed tomography observations of the thermal drying of lump-sized subbituminous coal
Abstract Drying of low-rank coals affects: coal cleaning, combustion, comminution, gasification, liquefaction, and in-seam fluid-flow (water, coalbed methane, and carbon dioxide for… Expand
Three dimensional coal characterisation (maceral, mineral and cleats) by means of X-ray microfocus computer tomography (µCT)
impact of coal, is a full 3D-quantitative characterisation of coal maceral content and distribution, mineral content and cleat system distribution. X-ray microfocus computer tomography, which is a… Expand
High-resolution X-ray computed tomography in geosciences: A review of the current technology and applications
TLDR
A review of the principle, the advantages and limitations of X-ray CT itself are presented, together with an overview of some current applications of micro-CT in geosciences. Expand
Quantitative 3D‐fracture analysis by means of microfocus X‐Ray Computer Tomography (µCT): An example from coal
Since the introduction of medical computer tomography (CT) in geological sciences, many applications have been worked out. However, its limited resolution (optimal 60 × 60 × 1000 µ³) restricts its… Expand
Analysis and significance of mineral matter in coal seams
Abstract The material described as “mineral matter” in coal encompasses dissolved salts in the pore water and inorganic elements associated with the organic compounds, as well as discrete crystalline… Expand
Characteristics and origins of coal cleat: A review
Abstract Cleats are natural opening-mode fractures in coal beds. They account for most of the permeability and much of the porosity of coalbed gas reservoirs and can have a significant effect on the… Expand
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