ISSN 1070-4272, Russian Journal of Applied Chemistry, 2008, Vol. 81, No. 8, pp. 1311–1324. © Pleiades Publishing, Ltd., 2008. Original Russian Text © A.A. Gaile, 2008, published in Zhurnal Prikladnoi Khimii, 2008, Vol. 81, No. 8, pp. 1233–1245. REVIEWS Development and Improvement of Extraction Processes for Separation and Purification of Petroleum Products A. A. Gaile St. Petersburg State Institute of Technology (Technical University), St. Petersburg, Russia Received December 26, 2007 DOI: 10.1134/S1070427208080016 Processes of extraction, extractive and azeotropic recovery and purification of acetylene; absorption of rectification, absorption, and extractive crystallization, hydrogen sulfide and other acid-type compounds from which use selective solvents, are widely used in petro- gas mixtures; removal of lubricants and technological leum processing and petrochemistry. As far back as coatings from the surface of metallic and optical arti- 1950s–1960s, effective agents were suggested for sep- cles. aration and purification of petroleum products: sulfolane, In 1986, UOP company developed and put into N-formylmorpholine, and N-methylpyrrolidone. industrial practice the Carom process intended for ex- traction of arenes with a mixed solvent based on tetra- At present, more than 150 industrial installations ethylene glycol, which contains up to 20% cosolvent for extraction of aromatic hydrocarbons with sulfolane from products formed
Russian Journal of Applied Chemistry – Springer Journals
Published: Sep 26, 2008
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