For the moment we do not have a complete guide for this specific action of running ThingWorx on top of Tomcat in production environments, however I’ve found some information on how to use Tomcat in production:
a. Stackoverflow thread which explains the basics on how to use Tomcat in production environments
b. Complete presentation from Mark Thomas, Tomcat developer, entitled "Tomcat Tuning"
c. Apache Tomcat 8 Configuration Reference
d. 21 Apache Tomcat Configuration Tips
Let me know if you have related questions or clarification regarding this subject ?