Zeolites have been widely used as catalysts, ion exchangers, and adsorbents since their industrial breakthrough in the 1950s and continue to be state-of the-art adsorbents in many separation processes. Furthermore, their properties make them materials of choice for developing and emerging separation applications. The aim of this review is to put into context the relevance of zeolites and their use and prospects in adsorption technology. It has been divided into three different sections, i.e., zeolites, adsorption on nanoporous materials, and chemical separations by zeolites. In the first section, zeolites are explained in terms of their structure, composition, preparation, and properties, and a brief review of their applications is given. In the second section, the fundamentals of adsorption science are presented, with special attention to its industrial application and our case of interest, which is adsorption on zeolites. Finally, the state-of-the-art relevant separations related to chemical and energy production, in which zeolites have a practical or potential applicability, are presented. The replacement of some of the current separation methods by optimized adsorption processes using zeolites could mean an improvement in terms of sustainability and energy savings. Different separation mechanisms and the underlying adsorption properties that make zeolites interesting for these applications are discussed.

Zeolites in Adsorption Processes: State of the Art and Future Prospects

Research progress on evaluation methods and factors influencing shale brittleness: A review

The big success in marine shale gas exploration and production made China the third country worldwide to commercialize shale gas development. However, the Upper Ordovician Wufeng Formation and the ...

Shale Gas Exploration and Development in China: Current Status, Geological Challenges, and Future Directions

Quantitative study on coal and shale pore structure and surface roughness based on atomic force microscopy and image processing

Mechanism of shale gas occurrence: Insights from comparative study on pore structures of marine and lacustrine shales

The composition, pore structure characterization and deformation mechanism of coal-bearing shales from tectonically altered coalfields in eastern China

This study researched the geochemical origin of coalbed methane (CBM) in three mining areas of the Huaibei coalfield and the distribution of different origin gases. The Rock-Eval data indicate that coal and coaly mudstone in this coalfield are both good gas-source rocks and are within the gas generation window. The large ranges of isotope data (δ13CCH4 = −42.8‰ to −75.5‰; δDCH4 = −153.2‰ to −228.1‰; δ13CCO2 = +8.2‰ to −24.3‰) reflect the complicated formation mechanism and evolutionary process of CBM. Both thermogenic and biogenic gas are present within the mining areas to varying degrees, with the biogenic gas being predominately generated via the CO2 reduction pathway. Gas migration was most prevalent in the Suixiao mining area, low in the Linhuan mining area, and not identified in the Suzhou mining area. An appropriate distribution model for the gases of different origin is, from bottom to top, a thermogenic gas zone, a mixture zone, a secondary biogenic gas zone, and a gas-weathered zone. Spatially, s...

Composition, Origin, and Distribution of Coalbed Methane in the Huaibei Coalfield, China

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The composition, pore structure characterization and deformation mechanism of coal-bearing shales from tectonically altered coalfields in eastern China

Composition, Origin, and Distribution of Coalbed Methane in the Huaibei Coalfield, China