[Chemical Engineering PhD Fall 2018 Application Results]

And as for Princeton, there were 3 acceptances reported on Jan 17-18.

[Chemical Engineering PhD Fall 2018 Application Results]

You can search the results page for "chemical engineering" to see which schools have sent acceptances so far. 

For International students (St="I" in Results page), the following US schools appear to have sent acceptances to 1 or more applicants as of now:

Columbia, Cornell, MIT, Princeton, Purdue, TAMU, UCSB, UCB, UIUC, Minn, Notre Dame, Penn, S. Carolina, Texas, WashU

Best wishes.