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PREFACE

During the past three years, the Technical Data Book-Petroleum Refining project staff in the Department of Chemical Engineering at The Pennsylvania State University has revised and expanded Chapter 12, "Thermal Conductivity," with new data and correlations. Available methods for predicting thermal conductivities of liquid and gaseous hydrocarbons and their mixtures were tested before selecting a recommended method in each category. Detailed results of the evaluations are given in Documentation Report No. 12-96, available from Global Engineering Documents.

Work on this chapter was primarily conducted by R Roberta Wu under the supervision of the project director, Thomas E. Daubert. The chapter coordinator for the Technical Data Committee is Costa Tsonopoulos of Exxon Research & Engineering Co.