| abstract |
The utility model discloses a kind of concentrated formaldehyde process units, including blender, blender connects with formaldehyde reactor, formaldehyde reactor connects with formaldehyde absorbing tower tower reactor, formaldehyde absorption column overhead and blender, formaldehyde absorbing tower bottom of towe connect with First Heat Exchanger and formaldehyde inspissator respectively, and heat exchanger in the middle part of formaldehyde absorbing tower with connecting, formaldehyde inspissator bottom connects with dense aldehyde distributor, is connected at the top of formaldehyde inspissator with formaldehyde absorbing tower top；Formaldehyde absorbing tower bottom of towe also connects with formaldehyde dealcoholysis tower, and formaldehyde dealcoholysis tower bottom of towe connects with formaldehyde inspissator, and formaldehyde dealcoholysis column overhead connects with methanol distillation column, and methanol distillation column connects with heater, and heater connects with blender.After concentrated formaldehyde production technology provided by the utility model, concentrated formaldehyde quality obtains permanently effective guarantee, while reduces process units energy consumption, improves the reliability of system operation, each user's continuous production is stabilized, whole production system is significant. |