Biomethane, produced by biogas upgrading, is a promising energy source that can play key role towards net-zero emissions targets. The incorporation of amine functionalities into adsorbents for upgrading facilitate the selective adsorption CO2, but their effect has not been comprehensively studied within context CH4 mixtures. In this work, effectiveness in selectively separating CO2 from biogas,...

Materials and processes for CO2 capture and utilisation are an essential part of a holistic approach toward a sustainable energy future. CO2 and energy are tightly intertwined as energy produced from fossil fuel combustion always generates CO2. A major environmental concern, CO2 could also become an invaluable resource for making carbon-based materials and chemicals, and a means to store energy...

Modern trends in iron metallurgy. Global carbon emissions from iron production. New solution for iron and steelmaking in a way reduce the CO2 emission to the level, where this might be needed in the post Kyoto period. New blast furnace technology, which operate with very low CO2 emissions based on drastically reduced consumption of carbon containing input materials. Injection of reducing gases ...

Oil shale is more than an energy source. It is also a source for various valuable materials. These materials include pyridine, carbonate minerals, alumina, ammonium sulfate, phosphate, sulfur, uranium, vanadium, and zinc, to name a few, from which numerous value-added products can be manufactured. For example, catalysts are made from vanadium and zinc, while alumina is a widely used material fo...

background & aims of the study: heavy metals discharge to environment is a worldwide problem growing in scale. when they accumulate in the environment and in food chains, they can profoundly disrupt biological processes. peganum harmala seeds (phs) was used as a bio-sorbent, using a continuous system for removing pb2+, co2+, ni2+ and cu2+ ions from aqueous solutions. materials and methods: phs ...

Two new materials for adsorption of metal ions from aqueous media have been developed. The organic functional groups amine (–NH2) and sulfonate (–SO3H) were successfully attached to a commercially available fine-grained activated carbon (AC) via electrophilic aromatic substitutions. The surface properties of the materials were investigated using FTIR spectroscopy, XPS, BET surface area analysis...

Metal organic frameworks (MOFs) have emerged as great alternatives to traditional nanoporous materials for CO2 separation applications. MOFs are porous materials that are formed by self-assembly of transition metals and organic ligands. The most important advantage of MOFs over well-known porous materials is the possibility to generate multiple materials with varying structural properties and c...

A low cost-biomass, olive stone, was used as a carbon precursor to synthesize activated biochar. Experiments were carried by single step activation for two agents (steam and CO2) using bench scale high-pressure thermobalance. Temperature, pressure, flow rate holding time optimized according the highest adsorption capacity of biochar obtained. In this respect, conditions established at 900 °C 30...

Significant research interest has been directed towards the deployment of direct air capture (DAC) as a net-negative CO2 emissions technology to help limit global temperature rise below 2 °C. The scope this review is outline advancement adsorption-based DAC technologies, well highlight still-existing data gaps, for both materials’ development and process design in period 2016 – 2021. On materia...

This study presents the preparation and characterization of chemically activated carbonaceous materials obtained from waste tyres and the prepared adsorbent was applied for the adsorptive removal of Cd(II) and Pb(II) in the domestic wastewater samples. The activation efficiency of phosphoric acid (H3PO4) and hydrogen peroxide (H2O2) were evaluated and H2O2 was chosen as the appropriate activati...