This book is a technical guide to the process of hydrogenation using catalysis. It covers the basic principles of the process, its applications in various industries, and the different catalytic materials and systems that can be used. Through detailed diagrams and technical analysis, readers can gain a thorough understanding of the science behind this important process. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.