Ignition of droplets of liquid fuels solvent extracted from coal
β Scribed by John B. Jordan; Geoffrey M. Kimber; Alan Williams
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 528 KB
- Volume
- 56
- Category
- Article
- ISSN
- 0016-2361
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β¦ Synopsis
A single suspended-droplet technique has been used to study droplet combustion of a range of solvent-refined coal extracts in a furnace at 850Β°C. The small particles of extract are solid at room temperature but they rapidly liquefy on exposure to the hot furnace environment, permitting the size and mass-time combustion histories to be measured. Their combustion behaviour is discussed in terms of their high aromaticity and comparison with the single droplet combustion of fuel oils of different asphaltene content was used to highlight potential solids emissions problems which may arise when firing in large systems.
π SIMILAR VOLUMES
A droplet population balance model is used to simulate the hydrodynamic behaviour of solvent extraction columns. This model describes the axial change of local column hold-up and local droplet size distributions caused by basic phenomena such as droplet rise, axial dispersion, and droplet break-up a
Chloroform extraction for Yubari coal both raw and preheated at 300, 350 and 400Β°C was carried out at various temperatures. The following results were obtained (1) 50 cm3 of chloroform per 1 g of sample is sufficient to extract almost completely, whatever the extraction tempetature, the chloroform-s