Commentary from Charles Blow, Jamelle Bouie, David Brooks, Frank Bruni, Gail Collins, Ross Douthat, Maureen Dowd, Thomas Friedman, Michelle Goldberg, Nicholas Kristof, Paul Krugman, Jennifer ...

In the intensified configurations, the reboiler condensed liquid is used to vaporize the side liquid stream in an intermediate reboiler (IR), the overhead vapor is preheated by the subcooled liquid.

Dual composition control of binary distillation columns is proposed and solved based on observer design and an elementary state elimination procedure. A particular observer allows us to recover the ...