Wiped film evaporators: Segmental assessment of wetting behavior and heat transfer performance

Reaction–Thin Film Evaporation Coupling Technology for Highly Efficient Synthesis of Higher Alkyl Methacrylate

“…Furthermore, in 2024, Veser and coworkers investigated a horizontal thin film evaporator as a continuously operated reactive separator that combines reaction and dehydration into a Reaction-separation coupling enhancement techniques encompass various methods, including ion exchange [19], reaction-extraction [20], reaction-distillation/rectification [21], reaction-adsorption [22], reaction-degradation, reaction-crystallization [23], reactionmembrane separation [24], and reaction-thin film evaporation [25,26]. Different from the traditional distillation tower and other separation equipment, thin film evaporation not only offers a larger evaporation area but also ensures the material maintains a thin film structure within the wiped film evaporator, and the heating time of the material is compressed to several seconds or ten seconds [27,28], which greatly reduces the possibility of heat loss and is widely used in the separation of heat-sensitive substances [29]. The utilization of reaction-thin film evaporator coupled technology has proven particularly advantageous in enhancing the intrinsic safety of the reaction and efficiency of equilibrium-limited reactions, as it facilitates the continuous removal of products from the reaction mixture, thereby driving the reaction towards rapid completion.…”

Continuous and Safe Alkylation of 1,3,5-Trihydroxy-2,4,6-trinitrobenzene using Wiped Film Evaporator/Distillation Coupled Technology

“…For achieving continuous, safe, and efficient alkylation reaction, the wiped film evaporator/distillation coupled technology will be applied in this work. This technology combines the advantages of both wiped film evaporator and distillation such as low liquid hold-up, good heat transfer characteristics, low pressure drop, and liquid mixture separation. − So far, this technology has been generally used to purify thermal sensitive liquid substances in the process industry such as pharmaceutical, cosmetic production industries. , Considering the features of this technology, we speculate that this technology is suitable to the TETNB synthesis process. To the best of our knowledge, no studies have been reported to conduct reactions using this wiped film evaporator/distillation coupled technology.…”