A CORRELATION FOR SLIP VELOCITY IN HANSON MIXER-SETTLER EXTRACTION COLU MN

سال انتشار: 1388
محل انتشار: ششمین کنگره بین المللی مهندسی شیمی
کد COI اختصاصی: ICHEC06_152
زبان مقاله: انگلیسی
تعداد مشاهده: 2681

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نویسندگان

E Hashtochahar

Department of Chemical Engineering, school of Chemical, Gas and Petroleum Engineering, Semnan University, semnan, Iran.

A Haghighi Asl

Department of Chemical Engineering, school of Chemical, Gas and Petroleum Engineering, Semnan University, semnan, Iran.

S . J Safdari

Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran.

M Napeida

Department of Chemical Engineering, school of Chemical, Gas and Petroleum Engineering, Semnan University, semnan, Iran.

چکیده

Characteristic velocity was obtained in a pilot plant Hanson mixer-settler extraction column of seven stages using three systems. In this paper, a set of previous characteristic velocity models presented in the past literatures were examined. Comparison between these models and the experimental results showed that although some of these equations may have satisfactory results, but they have to be more accuracy for design. So, a model for prediction of slip velocity was suggested in terms of total holdup and characteristic velocity which depends onphysical properties of liquid systems and operating variables. The comparison of experimental values of slip velocity was demonstrated good agreement with results of proposed model.

کلیدواژه ها

Slip velocity, characteristic velocity, dispersed phase holdup, Hanson mixer-settler

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