期刊
CHEMICAL ENGINEERING JOURNAL
卷 374, 期 -, 页码 1286-1303出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2019.06.031
关键词
Reactive adsorption; Reactive vapor permeation; Steam separation; Separation enhancement; Dehydration reaction; Carbon/CO2 utilization
资金
- European Union's Horizon 2020 research and innovation programme [727600]
- H2020 Societal Challenges Programme [727600] Funding Source: H2020 Societal Challenges Programme
Enhancement by steam separation is a promising process intensification for many types of reactions in which water is formed as a byproduct. For this, two main technologies are reactive vapor permeation (membrane technology) and reactive adsorption. Both can achieve significant conversion enhancement of equilibrium limited reactions by in situ removal of the by-product steam, while additionally it may help protecting catalysts from steam-induced deactivation. In general, reactive permeation or reactive adsorption would be preferable for distinctly different process conditions and requirements. However, although some advantages of reactive steam separation are readily apparent from a theoretical, thermodynamic point of view, the developments in several research lines make clear that the feasibility of in situ steam removal should be addressed case specifically and not only from a theoretical point of view. This includes the hydrothermal stability of the membranes and their permselectivity for reactive steam permeation, whereas high-temperature working capacities and heat management are crucial aspects for reactive steam adsorption. Together, these developments can accelerate further discovery, innovation and the rollout of steam separation enhanced reaction processes.
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