http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Ian Keen Koo (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Ian Keen Koo,Poh Teck Lim,Xiao Chen,K.B. Goh 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.123 No.-
Foulant-induced deactivation usually limits polymeric catalytic membrane performance, but the mechanismsgoverning foulant formation remain poorly understood. Recent research suggests that the interactionbetween solutes and the membrane plays a crucial role in foulant formation. This paper proposes amolecular theory to explain how reactant/product-membrane interactions influence foulant formation. This theoretical approach allows us to untangle the coupled competitive/sequential reaction–non-idealdiffusion phenomena in deactivating polymeric catalytic membranes. In other words, we include thereactant and product molecular information when describing their non-ideal reaction–diffusion behaviorin confined polymeric environments; that is, they can interact (i) catalytically and (ii) non-catalyticallywith the membranes. We demonstrate how the non-catalytic reactant/product-membrane interactionscontrol the partitioning process between the membranes and bulk solutions, allowing us to capturethe formation of foulant locally and the global deactivation process. In our observations, we have foundthat attractive reactant-membrane interactions can enhance diffusion within the membrane, but this cancome at the cost of reduced catalytic activity. Conversely, with the repulsive pair interaction, the reactantsmust overcome a more significant energy barrier to penetrate the membranes, simultaneously limitingthe polymeric catalytic membrane performance and hindering foulant formation. In conclusion, ourtheory establishes a detailed understanding of reaction–diffusion phenomena governing foulant formationin polymeric catalytic membranes, considering the direct interaction between active reactants/productsand reactive membranes.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
