𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Kinetics of extraction of coal-tar pitch components with supercritical carbon dioxide

✍ Scribed by S. Marković; Z. Marković; R. I. McCrindle; B. R. Simonović

Book ID
111491022
Publisher
Versita
Year
2007
Tongue
English
Weight
170 KB
Volume
61
Category
Article
ISSN
0366-6352

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The extraction of a coal-tar pitch with supercritical carbon dioxide was performed under optimal pressure, flow rate, and three different constant temperatures. The extraction kinetics was examined for each temperature and it was surprisingly found that the extraction rate of most components was governed by the first-order kinetics. It was assumed that this deviation from typical models of supercritical fluid extraction kinetics was caused by high pitch concentrations and low solubilities of the components.

📜 SIMILAR VOLUMES

Supercritical carbon dioxide extraction
Supercritical carbon dioxide extraction of bergamot peels. Extraction kinetics of oil and its components
✍ Marco Poiana; Rosa Fresa; Biagio Mincione 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 149 KB 👁 2 views

Bergamot ¯avedo (Citrus bergamia Risso) was extracted by supercritical carbon dioxide (SC-CO 2 ) at three dierent conditions: 80 bar of pressure at 408C of temperature, 90 bar at 508C, 100 bar at 608C. The density value was similar for every experiment and was limited between 282 and 288 g/dm 3 . Th

Prediction of solubilities for tar extra
Prediction of solubilities for tar extraction by supercritical carbon dioxide
✍ Keith D. Bartle; Anthony A. Clifford; Gavin F. Shilstone 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 486 KB

Predictions are given for the solubilities of four compounds (naphthalene, phenanthrene, phenol, and 2-naphthol) in carbon dioxide at six temperatures between 40 "C and 100 "C and pressures up to 240 bar. The data are intended to be relevant to the extraction of coal-gasification tars. The Peng-Robi