We planned this book to be an up-to-date overview of turboexpanders 
and the processes where these machines are applied in a modem, cost- 
conscious plant environment. Therefore, the text addresses construction 
features, application criteria, functional parameters, and selection guide- 
lines. It is clearly intended for the widest possible spectrum of engineer- 
ing, technical support, maintenance, operating, and managerial personnel 
in process plants, refineries, air liquefaction, natural gas separation, min- 
ing, design contracting, and many other industries.