Here is a link to free download of chemical engineering text books.
https://sites.google.com/site/ethiograd123/e-books/chemical-engineering
List of books
Chemical engineering Vol 1up to 6, Coulsen and Richardson, 6th edition. Fluid flow, Heat transfer and Mass Transfer
Chemical Process Equipment Selection and Design, Stanely M Wallas
Chemical reaction engineering Levenspiel
Chemical engineering plant design and economics, Timmerhouse
and 15 others