High CO₂/N₂/O₂/CO separation in a chemically robust porous coordination polymer with low binding energy

Abstract

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Transient breakthroughs of CO2/CH4 and C3H6/C3H8 mixtures in fixed beds packed with Ni-MOF-74

“…1(b)]. Such binding results in selective separations that can compete economically with amine absorption (Alivisatos and Buchanan, 2010;Bao et al, 2011b;Dietzel et al, 2008;Duan et al, 2014;Herm et al, 2012;Krishna and van Baten, 2012a;Mason et al, 2011;McDonald et al, 2011;Padurean et al, 2012;Wu et al, 2012;Xiang et al, 2012;Yang et al, 2014;Yu et al, 2013). The stronger the binding, the higher is the selectivity for separations.…”

Production of molecularly imprinted polymer particles with amide-decorated cavities for CO 2 capture using membrane emulsification/suspension polymerisation

“…However, the presence of moisture in flue gases 15 greatly reduces their capture capacity and requires higher regeneration temperatures, resulting 16 in higher energy penalties [12]. 17 Metal organic frameworks (MOFs) show high CO 2 capture capacity at elevated pressures 18 [13], but under typical conditions of post-combustion carbon capture, their capture capacity is 19 reduced, especially in the presence of moisture, NO x and SO x [10,14]. Carbonaceous 20 materials are cheap and stable in the presence of moisture and impurities [15].…”

“…24 Physical impregnation or covalent tethering of amines inside mesopores is an effective way 25 of increasing both CO 2 capture capacity and selectivity of porous CO 2 adsorbents [17,18]. 26 CO 2 has a higher affinity towards polar amine or amide groups than other flue gases, due to 27 its larger quadrupole moment and polarisability [19]. 28 Polymer-based materials, such as hyper cross-linked polymers (HCPs), porous aromatic 29 frameworks (PAFs), and covalent organic polymers (COPs) are new classes of CO 2 30 adsorbents characterised by a high CO 2 selectivity and capture capacity, high hydrothermal 31 stability and ease of surface modification [20][21][22].…”

A stable metal–organic framework with suitable pore sizes and rich uncoordinated nitrogen atoms on the internal surface of micropores for highly efficient CO2 capture

“…3) [44][45][46] For the practical use of an adsorptive material, its regeneration and recycling properties are crucial and are also important standards to evaluate an adsorption material. Keeping this in mind, the regenerative feature of NENU-520a was investigated.…”