Zhejiang NHU Co., Ltd. is a high-tech, high growth, high efficiency of national key high-tech enterprises. Has total assets of around $ 3.5 billion headquarters in Xinchang, in Xinchang, Shangyu, Shandong, Anhui and production base with a number of subsidiaries.

The conditions for the toluene distillation process system, the original design for the 80 square-tube heat exchanger, two condensation methods; are used SECESPOL heat exchanger models JADx 9.88, heat transfer area of ​​10.8 square, toluene condensed the outlet temperature 5 degrees higher than the original design, reducing the amount of recycled water. Now users have been stable for six months, and is energy saving users in Shaoxing meeting recommended as a model project.