To locate books on your topic, use the Library Catalog (http://library.kaust.edu.sa). Start with entering a keyword search on the likely terms. You can also browse and use the subject heading of "Chemical Engineering" itself.
TP1-1185 Chemical Technology
Use Reference Works (dictionaries/encyclopedias, handbooks, manuals) to find a fact quickly:
Encyclopedias/Dictionaries provides the basics, definitions, and sometimes links further information.