✦ LIBER ✦

Paper electrophoresis of bitumen in oil sands

✍ Scribed by Walter Sowa; Harold Lomas

Publisher: Elsevier Science
Year: 1981
Tongue: English
Weight: 251 KB
Volume: 60
Category: Article
ISSN: 0016-2361
DOI: 10.1016/0016-2361(81)90019-3

No coin nor oath required. For personal study only.

✦ Synopsis

Letters to the Editor o.66 0 100 200 300 LOO 500 Time lh) Figure2 Variation of C,f/C,, with duration of oxidation (105°C. in air) C,, as a function of time of oxidation at 105". This shows that the aromatic structures in the coal are being modified more than the aliphatic structures during the oxidation. Recent work on model compounds show that this is at least chemically possible.5 These results raise the question as to what chemical changes taking place during the lowtemperature oxidation of coal are responsible for the loss of coking properties. More work is required to answer such a complex question in mechanistic terms but i3C n.m.r. (CP-MAS) holds promise as a valuable probe for the characterization of the oxidation. Further studies of this matter are in progress.

📜 SIMILAR VOLUMES

Bitumen—sand interaction in oil sand pro

Bitumen—sand interaction in oil sand processing

✍ Qi Dai; Keng H. Chung 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 904 KB

Role of fine clays in bitumen extraction

Role of fine clays in bitumen extraction from oil sands

✍ Jianjun Liu; Zhenghe Xu; Jacob Masliyah 📂 Article 📅 2004 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 269 KB

Preparation of bitumen from oil sand by

Preparation of bitumen from oil sand by centrifugation

✍ Dean Wallace; Marcel Polikar; Frank Ferracuti 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 333 KB

Centrifugation was shown to have certain advantages over solvent extraction for the separation of bitumen from oil sand for research purposes. No fractionation of the bitumen during centrifugation was detected by chemical analysis. Some limitations of the method are pointed out.

Preparation of bitumen from oil sand by

Preparation of bitumen from oil sand by ultracentrifugation

✍ Deborah Henry; Bryan Fuhr 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 464 KB

Hydrotreatment of bitumen from the White

Hydrotreatment of bitumen from the Whiterocks oil sand deposit

✍ D.C. Longstaff; M.D. Deo; F.V. Hanson 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 844 KB

The bitumen from the Whiterocks oil sand deposit in the Uinta Basin of eastern Utah was hydrotreated in a fixed-bed reactor to determine the extent of upgrading as a function of operating variables, including pressure (11.2-16.7 MPa), temperature (642-712 K) and liquid hourly space velocity (0.18-0.

Study of fines in bitumen extracted from

Study of fines in bitumen extracted from oil sands by heat-centrifugation

✍ Chester J. Budziak; Eva I. Vargha-Butler; Ronald G.V. Hancock; A.Wilhelm Neumann 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 704 KB

The temperature dependence of, first, the yield of bitumen extracted from oil sands and, second, of the coextracted solid particles in the bitumen was studied. Centrifugal extractions were performed in an argon (inert) atmosphere at temperatures ranging from 30°C to 150°C. The co-extracted solid par