Chloe leaned forward, her nose almost touching the screen. "Why didn't it converge?"
"No," she said quietly. "Look. You set the distillate rate to 45 kmol/hr, but the bottoms composition spec is 99% Toluene. The mass balance doesn't close. The machine is telling you you're asking for a unicorn." aspen plus tutorial
He clicked and dragged. A . A Heater . A RadFrac column. The canvas filled with blue blocks and green streams. Chloe scribbled furiously. Chloe leaned forward, her nose almost touching the screen