The design of adsorption systems for separation CO2/N2 in carbon capture applications is notoriously challenging because it requires constrained multiobjective optimization to determine appropriate combinations a moderately large number system operating parameters. status quo the literature use nondominated sorting genetic algorithm II (NSGA-II) solve problem. This approach 1000s time-consuming process simulations find Pareto front problem, meaning can take days computational time obtain...

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Abstract We have carried out the traditional analysis of a set dynamic breakthrough experiments on $$\hbox {CO}_2$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mtext>CO</mml:mtext> <mml:mn>2</mml:mn> </mml:msub> </mml:math> /He system adsorbing onto activated carbon by fitting 1D column model to transient experimental profiles. quantified uncertainties in fitted parameters using techniques Bayesian inference, and propagated these parametric through assess...

We discuss the impact of design and operational parameters on performance direct air capture units using solid sorbents by deploying a state-of-the-art process simulation tool combined to black-box optimization. identity that system designs employing moderate CO2 sorption kinetics contactors with low length-to-radius ratios yield best in terms productivity.

We present the design and performance evaluation of a multi-sorbent process for CO2 capture based on vacuum-swing adsorption by studying layered-bed mixed-bed configurations. find that achieves improved separation effectiveness yields reduced energy usage compared to single-adsorbent processes.

Pressure-Vacuum Swing Adsorption (PVSA) shows great potential in post-combustion carbon capture. However, accurately modelling it requires a large amount of computational time using detailed process models, and screening numbers adsorbents becomes computationally prohibitive. Using data-driven neural network models have to solve this problem is the focus paper. We build adapt previously established machine-assisted adsorption learning emulation (MAPLE) framework by dual-site Langmuir model,...

Abstract Dispatchable low-carbon power underpins the transition to a sustainable energy system, providing balancing load for integration of intermittent renewable power. In such load-following operation, post-combustion carbon capture process must be capable highly transient operation. Here we have developed computational framework that integrates design, operability and techno-economic assessment pressure-vacuum swing adsorption CO 2 capture. We demonstrate cost-optimal design has limited...

We have carried out a model-based assessment of dual-adsorbent beds for post-combustion CO2 capture, whereby we consider systems in which two distinct adsorbent materials are homogeneously mixed to form fixed bed adsorber. employed an equilibrium-based process model (D-BAAM) simulate and optimize the performance four-step vacuum swing adsorption cycle capture with bed. used developed framework screen 2,850 binary combinations adsorbents from database 76 promising includes zeolites, activated...

Low-carbon dispatchable power underpins a sustainable energy system, providing load balancing complementing wide-scale deployment of intermittent renewable power. In this new context, fossil fuel-fired plants must be coupled with post-combustion carbon capture (PCC) process capable highly transient operation. To tackle design and operational challenges simultaneously, we have developed computational framework that integrates techno-economic assessment. The backbone is high-fidelity PCC...

We present the design and performance evaluation of a novel multisorbent process for CO2/N2 separation based on vacuum-swing adsorption (VSA). study two configurations: (i) layered-bed processes, wherein distinct adsorbent materials are arranged in sequential layers within bed, (ii) mixed-bed homogeneously mixed bed. develop, validate, deploy high-fidelity dynamic column model configurations apply Bayesian optimization to processes that achieve maximum effectiveness terms CO2 purity recovery...

Abstract Direct capture of CO $$_2$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mmultiscripts> <mml:mrow/> <mml:mn>2</mml:mn> </mml:mmultiscripts> </mml:math> from ambient air is technically feasible today, with commercial units already in operation. A demonstrated technology for achieving direct (DAC) chemical separation a steam-assisted temperature-vacuum swing adsorption (S-TVSA) process. However, the potential to develop scalable solutions remains high, requiring...

We have conducted single- and two-phase pulse-tracer experiments in a Berea Sandstone core using the N2/water system. X-Ray Computed tomography (CT) Positron Emission Tomography (PET) were used to obtain three-dimensional distribution of nonwetting phase saturation image transport radiotracer within sample, respectively. Experiments carried out at two different levels residual saturation, so as assess impact water content on solute dispersal. observe that plume is largely influenced by level...