Proceedings of an International Conference on Mitigation of Heat Exchanger Fouling and Its Economic and Environmental Implications

ISBN 打印: 1-56700-172-6

FOULING OF A SWEET CRUDE OIL UNDER INERT AND OXYGENATED CONDITIONS

A. Paul Watkinson Department of Chemical and Biological Engineering The University of British Columbia Vancouver, ВС, Canada V6T 1Z4

B. Navaneetha-Sundaram Department of Chemical and Biological Engineering The University of British Columbia Vancouver, B.C., CANADA V6T 1Z4

D. Posarac Department of Chemical and Biological Engineering The University of British Columbia Vancouver, B.C., CANADA V6T 1Z4

Abstract

Fouling of a sweet crude oil derived from oil sands was studied in a re-circulation heating loop to identify causes of refinery pre-heater fouling. Oil was re-circulated for periods of up to six days through an electrically heated annular probe. The oil was maintained under gaseous atmospheres with air/nitrogen molar ratios from zero to 0.25, at total pressures of 460 kPa. The effects of wall and bulk temperature, flow velocity, dissolved oxygen content, and mineral particle additions on the fouling rate are reported.

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