Numerical methods and applications to chemical engineering problems, and use of spreadsheets and applied math-related packages; process simulation programs such as HYSYS and ASPEN PLUS are used to simulate chemical process operations, including distillation columns, heat exchangers and reactors.
Numerical Methods for Engineers 7th Edition by Steven Chapra, Raymond Canale
Aspen HYSYS: An Introduction to Chemical Engineering Simulation: For Chemical Engineering Undergraduate Students by Mohd. Kamaruddin Abd. Hamid