All Answers (3) 1  Dear Sam Fenwick, The reflux ratio is indeed a sensitive operating variable and affects a daily profit. The optimal reflux ratio is closely related to the feed mole fraction, feed quality, relative volatility, and a separation factor which itself was a function of overhead and bottoms composition.
It is said that there are only 20 known cases of Pretzel Syndrome, a genetic disorder that occurs exclusively in the Plain Sect Communities. Learn about this tragic disease that claims most of its victims by age six.
The pretzel is a traditional Lenten food that originated over a thousand years ago. Some say that it was made to resemble arms crossed over the chest in prayer (an ancient custom). In fact, pretzel may have come from the Latin word bracellae, meaning little arms.