The premier organization for Chemical Engineers in the United States is the American Institute of Chemical Engineers. Here are some of the most useful links on their site.
Up-to-date coverage of all chemical engineering topics from the fundamentals to the state of the art now in its 85th anniversary edition, this industry-standard resource has equipped generations of engineers and chemists with vital information, data, and insights. Thoroughly revised to reflect the latest technological advances and processes, Perry's Chemical Engineers' Handbook, ninth edition, provides unsurpassed coverage of every aspect of chemical engineering.