| 摘要 |
<p>PURPOSE: A distillation column for a separation wall producing and a fractional distillation method of normal butanol are provided to reduce installation costs while reducing energy waste by producing normal butanol of high purity. CONSTITUTION: A distillation column for a separation wall includes a main column a condenser(31), a reboiler(41), and the separation wall. The main column is divided into a column region, au upper supply region, an upper discharge region, a lower supply region, a lower discharge region, and etc. One or more discharge flow is a normal butanol flow. A raw material has the content of the normal butanol of 90 weight% or more.</p> |
