This research introduces a completely new environmental benign synthesis route for obtaining two kinds of inter-mediate and high temperature CO2 sorbents, Mg-Al layered double hydroxide (LDH) and Li4SiO4, from vermiculite. The mineral vermiculite was leached with acid, from which the obtained SiO2 was used for the synthesis of Li4SiO4 and the leaching waste water was used for the synthesis of M...

We report the advances in the principal structural and experimental factors that might influence the carbon dioxide (CO2) adsorption on natural and synthetic zeolites. The CO2 adsorption is principally govern by the inclusion of exchangeable cations (countercations) within the cavities of zeolites, which induce basicity and an electric field, two key parameters for CO2 adsorption. More specific...

We discussed here on a novel approach to recycle CO2 back to liquid fuels by using nanostructured carbon-based materials (doped with suitable metal nanoparticles) as electrocatalysts. This approach is based on the development of a new photo-electrocatalytic (PEC) reactor, working in gas phase, which is quite different from the conventional reactors that operate typically in aqueous slurry and/o...

This study addresses the effect of impurities on the crystallization of Na2CO3 produced within a strategy for capturing CO2 from flue gases by alkaline absorption. A novel technology membrane assisted crystallization is proposed for Na2CO3 crystallization from mother liquors containing impurities. High purity of Na2CO3•10H2O crystals was obtained without impacting the performance of the mass tr...

Direct air carbon capture and storage (DACCS) involves a set of approaches for capturing CO2 directly from the its subsequent long-term storage. DACCS is at an early stage...

In part I of this study, control structures were proposed for different operational regions of a postcombustion CO2 capturing process using the top-down steady-state economic part of the plantwide procedure. In the current study, the bottom-up part of the complete procedure is considered. For this purpose, dynamic simulation is used to validate the proposed control structures. Different control...

Monitoring the global distribution and long-term variations of CO2 sources and sinks is required for characterizing the global carbon budget. Total column measurements are useful for estimating regional-scale fluxes; however, model transport remains a significant error source, particularly for quantifying local sources and sinks. To improve the capability of estimating regional fluxes, we estim...

Climate change occurs as a result of absorption of infrared radiation which heats the atmosphere. Greenhouse gas emissions can increase the earth’s average temperatures since the majority of greenhouse gases are carbon dioxide (CO2). Fossil fuels have historically played a major role as the world’s primary source of energy and will continue to assume that role for at least the next few decades....