Carbon capture is one of the recently raised technologies to mitigate greenhouse gas emissions. Adsorption was introduced as an energy-efficient carbon process, and literature primarily shows utilization circular cross-sectional adsorption beds for this purpose. In regard, paper investigates different shapes adsorbent determine thermal uptake enhancements. Three geometries are considered: circu...

This paper investigates the potential of pristine and acid-treated olivine as a substrate for CO2 capture using a vacuum swing adsorption (VSA) process from the gas-solid phase. The experiments tested the isotherm of pure CO2 adsorption with partial pressure from 10−5 to 1 bar at ambient temperature. The CO2 adsorption capacity and actual expected working capacity (EWC) curves of pristine and a...

Biogas production is rising in the context of fossil fuel decline and future circular economy, yet raw biogas requires purification steps before use. Here, we review upgrading using physical, chemical biological methods such as water scrubbing, physical absorption, pressure swing adsorption, cryogenic separation, membrane chemoautotrophic methods, photosynthetic desorption. We also discuss thei...

Selective removal of CO2 during biogas upgrading and subsequent sequestration can transform the produced biomethane from a carbon-neutral to carbon-negative energy source. Such technology be considered as bioenergy with carbon capture storage (BECCS), i.e., negative-emission (NET). In this research, porous polymeric beads (PPBs) practical working capacity above atmospheric pressure cyclic perfo...

Pressure Swing Adsorption (PSA) is one of the implemented technologies for removing carbon dioxide in biogas streams. Different adsorbents, mostly zeolite-based, and process configurations have been patented commercially demonstrated. In this study, we developed a numerical model to successfully describe dynamic performance biomass-derived activated purification. It first step designing biomass...

With expanding areas of applications, increasing needs for efficient cycles, and growing demands for efficient modeling, it has become essential to develop new systematic strategies for optimal design and operation of PSA systems. Although industrial usage of PSA is widespread, we observe a drought of any systematic methodology to design PSA cycles in PSA literature due to inherent complexity o...