Cho Sunghyun, Kim Junghwan
Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge 02134, Massachusetts, United States.
Green Materials & Processes R&D Group, Korea Institute of Industrial Technology, 55, Jongga-ro, Jung-gu, Ulsan 44413, Republic of Korea.
ACS Omega. 2022 May 23;7(22):18681-18687. doi: 10.1021/acsomega.2c01354. eCollection 2022 Jun 7.
Explosive waste is very dangerous, and it should be incinerated under safe conditions. Currently, a rotary kiln is used to incinerate explosive waste; however, it creates air pollutants such as NO more than the government regulation (90 ppm). To this end, the fluidized bed was suggested, and previous study showed that it could be a new-generation incineration method since it creates NO less than regulation. Despite impressive results and many approaches to reduce NO emissions, it is still insufficient to apply the explosive waste incineration process. This is because this process has been studied only for NO emissions so far. Therefore, in this study, the heat exchanger network (HEN) was grafted and optimized to save the energy used in the process as much as possible based on the operating condition from previous study, which can emit the minimum NO . As a result, it was possible to save 44% of the total cost compared to the existing method without changing the operating conditions. This result is meaningful in that it is important not only to optimize the design condition of the reactor but also to apply the HEN which will be effective to save the process cost.
爆炸性废物非常危险，应在安全条件下进行焚烧。目前，使用回转窑来焚烧爆炸性废物；然而，它产生的空气污染物如氮氧化物超过了政府规定（90 ppm）。为此，有人提出了流化床，先前的研究表明，它可能是一种新一代的焚烧方法，因为它产生的氮氧化物低于规定值。尽管取得了令人印象深刻的成果以及有许多减少氮氧化物排放的方法，但将其应用于爆炸性废物焚烧过程仍显不足。这是因为到目前为止，该过程仅针对氮氧化物排放进行了研究。因此，在本研究中，基于先前研究的运行条件，嫁接并优化了热交换器网络（HEN），以尽可能多地节省该过程中使用的能源，同时能排放最低量的氮氧化物。结果，与现有方法相比，在不改变运行条件的情况下，有可能节省44%的总成本。这一结果的意义在于，不仅优化反应器的设计条件很重要，而且应用HEN对于节省过程成本也将是有效的。
