Adsorption processes metal organic frameworks

Whilst the development of new adsorbents on monolithic [62] or fibrous supports [63] to cut pressure drops, of high-capacity metal organic frameworks (MOFs) [64], or of highly selective molecularly imprinted polymers (MIPs) [65], is certainly beneficial for the realization of novel adsorptive reactive concepts, the serendipity of catalytic chemistry and the accompanying adsorption process remains the crucial factor for the success or otherwise of an adsorptive reactor. Thus, although a healthy degree of skepticism is appropriate when assessing the suitability of an adsorptive... 

The book Porous Materials for Carbon Dioxide Capture is aimed at providing researchers with the most pertinent and up-to-date advances related to the fields of porous materials design and fabrication and subsequent evaluation in innovative cyclic CO2 adsorption processes, with special emphasis on uncovering the relationships between structural characteristics and CO2 capture performance. The book is divided into seven chapters that provide a resume of the current state of knowledge of porous CO2 capture materials, which include ionic liquid-derived carbonaceous adsorbents, porous carbons, metal-organic frameworks, porous aromatic frameworks, microporous organic polymers, sorption techniques such as cyclic calcination and carbonation reactions, and membrane separations. 

For separation processes, solid adsorbents are packed as fixed beds and submitted to successive adsorption and desorption steps. The operation is therefore transient instead of steady-state. To achieve a continuous production, multiple packed-beds are needed in parallel with shifted time-cycles. The technique necessitates a drastic pretreatment of gas effluent, especially for particle removal. A new class of nanoporous crystalline solids, called metal-organic framework (MOF) materials, is intensively studied as potential adsorbent materials for CO2 capture. The interest of such material is their high internal surface area, large pore volume, and the possibility to adapt the pores with a variety of functionalities. 

Metal organic co-ordination frameworks have attracted much interest recently [1-5] owing to their potential as materials for solvent-inclusion [6-11] or gas adsorption [12-15] or with electronic [16, 17] or non-linear optical properties [18,19]. The rational design and targeted synthesis of multidimensional molecular architectures is also of significance in the quest not only to understand how crystalline and ordered materials may be engineered [20-22], but also to elucidate the underlying processes of self-assembly [23-27]. 

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