Moriyama Norihiro, Takeyama Akihiro, Yamatoko Taichi, Sawamura Ken-Ichi, Gonoi Koji, Nagasawa Hiroki, Kanezashi Masakoto, Tsuru Toshinori
Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagami-yama, Higashi-Hiroshima, 739-8527, Japan.
PLANTEC Inc., 1-6-17 Kyomachibori, Nishi-ku, Osaka city, 550-0003, Japan.
Nat Commun. 2023 Nov 23;14(1):7641. doi: 10.1038/s41467-023-43546-y.
Steam recovery from the spent gases from flues could be a key step in addressing the water shortage issue while additionally benefiting energy saving. Herein, we propose a system that uses organosilica membranes consisting of a developed layered structure to recover steam and latent heat from waste. Proof-of-concept testing is conducted in a running incinerator plant. The proposed system eliminates the need for a water supply while simultaneously recovering latent heat from the waste stream. First, the long-term stability of an organosilica membrane is confirmed over the course of six months on a laboratory-scale under a simulated waste stream. Second, steam recovery is demonstrated in a running waste incinerator plant (bench-scale), which confirms the steady operation of this steam recovery system with a steam recovery rate comparable to that recorded in the laboratory-scale test. Third, process simulation reveals that this system enables water-self-reliance with energy recovery that approximates 70% of waste combustion energy.
从烟道废气中回收蒸汽可能是解决水资源短缺问题的关键一步，同时还有助于节能。在此，我们提出一种系统，该系统使用具有发达层状结构的有机硅膜从废物中回收蒸汽和潜热。在一家正在运行的焚烧厂进行了概念验证测试。所提出的系统无需供水，同时从废气流中回收潜热。首先，在实验室规模下，在模拟废气流中对有机硅膜的长期稳定性进行了为期六个月的确认。其次，在一家正在运行的垃圾焚烧厂（实验室规模）中展示了蒸汽回收，这证实了该蒸汽回收系统的稳定运行，其蒸汽回收率与实验室规模测试中记录的相当。第三，过程模拟表明，该系统能够实现水的自给自足，并回收约占废物燃烧能量70%的能量。
