WIT Press

A Diffuse Interface Model For Sulphation Of Limestone Calcines

Price

Free (open access)

Paper DOI

10.2495/AIR930591

Volume

1

Pages

9

Published

1993

Size

495 kb

Author(s)

A.R. Khan, M.R. Reda & J.N. Alhajji

Abstract

A diffuse interface model for sulphation of limestone calcines A.R. Khan/ M.R. Reda," J.N. Alhajji* "Chemical Engineering Department, ^Mechanical Engineering Department, College of Engineering & Petroleum, Kuwait University, PO Box 5969, Safat 13060, Kuwait ABSTRACT An improved diffuse interface model has been implemented successfully to simulate two sets of independent experimental results on the sulphidation of limestone by SO% gas at high temperatures. It is shown that while the grain model and the pore model could not represent the above experimental data, the diffuse interface model successfully simulated both sets of experimental data by taking into account the gas film mass transfer resistance. INTRODUCTION Acid rain has become a major issue due to the increased use of fossil fuel. Much work has been done on the removal of sulfur dioxide from waste gases. One such successful technique is the reaction of SO% with limestone and metal oxides. Metal oxides are co

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