Role of Liquid Concentration in Coke Yield from Model Vacuum Residue–Coke Agglomerates
| Autor: | Craig M. McKnight, Jason Wiens, Murray R. Gray, Michael Wormsbecker, Christian Müller, Peter Pfeifer, Deepesh Kumar, Jennifer McMillan |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
General Chemical Engineering Alloy technology industry and agriculture Induction furnace 02 engineering and technology General Chemistry Coke engineering.material 021001 nanoscience & nanotechnology complex mixtures 7. Clean energy 6. Clean water Industrial and Manufacturing Engineering Residue (chemistry) 020401 chemical engineering Chemical engineering Asphalt Fluidized bed Agglomerate engineering Curie temperature 0204 chemical engineering 0210 nano-technology |
| Zdroj: | Industrial & Engineering Chemistry Research. 54:9089-9096 |
| ISSN: | 1520-5045 0888-5885 |
| DOI: | 10.1021/acs.iecr.5b00806 |
| Popis: | The fluid coking process is an example of an upgrading process that uses hot solids to heat and crack bitumen into more valuable products. When feed liquid is sprayed into a fluid bed of hot solids, the solids tend to agglomerate, giving simultaneous heating, reaction, and disintegration processes. The reaction of mixtures of three Athabasca vacuum residues and fluid coke particles was investigated by heating them in Curie point reactors in an induction furnace up to 530 °C. Small scale reactors with machined wells were fabricated from Curie point alloy. The yield of coke was measured as a function of the ratio of liquid to solid, heating rate, and feed type. Coke yields were insensitive to heating rates from 5 to 120 °C/s, at a constant final temperature. Bubbling was observed as the ratio of liquid feed in the mixture was raised above a threshold, depending on the reactivity of the feed used. Bubbling was observed to increase with greater heating rates, but it had little effect on ultimate coke yield. C... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|