Optimization of natural gas treatment for the removal of CO2 and H2S in a novel alkaline-DEA hybrid scrubber

Sanni, Samuel Eshorame; Agboola, Oluranti; Fagbiele, Omololu Oluwatobi; Yusuf, Esther O.; Emetere, M. E.

doi:10.1016/j.ejpe.2019.11.003

Cited by 26 publications

(11 citation statements)

References 19 publications

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“…Owing to the different types of absorption, adsorption, membrane, and cryogenic processes available for carbon capture operations, absorption still stands out as the most widely used method in commercial applications. Based on the content and composition of treated gas samples, different physical and chemical methods of adsorption are available for carbon dioxide and sulfur species removal from process streams [24][25][26][27]. For mixtures containing low amounts of carbon dioxide, chemical solvents are preferred to physical solvents; however, physical solvents give better results at high partial pressures.…”

Section: Some Related Reviews On Carbonmentioning

confidence: 99%

“…However, one major demerit of this method is the tendency for MEA degradation when it is in contact with the oxidising environment of flue gas, whereas the energy requirement for the regeneration of the spent solvents can reduce energy costs by about 40% when compared with the cost incurred from using conventional MEA solvents. Hence, alternative solvents such as sterically hindered amines have been proven to possess good absorption and desorption features with minimal degradation or low solvent loss during carbon sequestration [27].…”

Section: Physiochemical Absorptionmentioning

confidence: 99%

“…Operating pressure (bar) Figure 3: Operating pressure vs. CO 2 absorption using 0.1 M Ca(OH) 2 + 10-35% DEA (adapted from Sanni et al [27]). solution diffusion) responsible for gas adsorption in polymeric membranes are as illustrated in Figure 5.…”

Section: Membrane Separation/absorptionmentioning

confidence: 99%

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Novel Systems and Membrane Technologies for Carbon Capture

Sanni

Sadiku

Okoro

2021

International Journal of Chemical Engineering

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Due to the global menace caused by carbon emissions from environmental, anthropogenic, and industrial processes, it has become expedient to consider the use of systems, with high trapping potentials for these carbon-based compounds. Several prior studies have considered the use of amines, activated carbon, and other solid adsorbents. Advances in carbon capture research have led to the use of ionic liquids, enzyme-based systems, microbial filters, membranes, and metal-organic frameworks in capturing CO2. Therefore, it is common knowledge that some of these systems have their lapses, which then informs the need to prioritize and optimize their synthetic routes for optimum efficiency. Some authors have also argued about the need to consider the use of hybrid systems, which offer several characteristics that in turn give synergistic effects/properties that are better compared to those of the individual components that make up the composites. For instance, some membranes are hydrophobic in nature, which makes them unsuitable for carbon capture operations; hence, it is necessary to consider modifying properties such as thermal stability, chemical stability, permeability, nature of the raw/starting material, thickness, durability, and surface area which can enhance the performance of these systems. In this review, previous and recent advances in carbon capture systems and sequestration technologies are discussed, while some recommendations and future prospects in innovative technologies are also highlighted.

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Section: Some Related Reviews On Carbonmentioning

confidence: 99%

Section: Physiochemical Absorptionmentioning

confidence: 99%

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Novel Systems and Membrane Technologies for Carbon Capture

Sanni

Sadiku

Okoro

2021

International Journal of Chemical Engineering

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“…e modified membrane can exhibit excellent stability, high selectivity for target feed streams, and high molecular weight penetrant flux with low driving force under a wide scope of process conditions. e right decision of material for the matrix and sifter stages is fundamentally significant [95].…”

Section: Nano-based Particle/material-doped Membranesmentioning

confidence: 99%

Advances in the Use of Nanocomposite Membranes for Carbon Capture Operations

Okoro

Josephs

Sanni

et al. 2021

International Journal of Chemical Engineering

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The adoption of nanodoped membranes in the areas of gas stream separation, water, and wastewater treatments due to the physical and operational advantages of such membranes has significantly increased. The literature has shown that the surface structure and physicochemical properties of nanodoped membranes contribute significantly to the interaction and rejection characteristics when compared to bare membranes. This study reviews the recent developments on nanodoped membranes, and their hybrids for carbon capture and gas separation operations. Features such as the nanoparticles/materials and hybrids used for membrane doping and the effect of physicochemical properties and water vapour in nanodoped membrane performance for carbon capture are discussed. The highlights of this review show that nanodoped membrane is a facile modification technique which improves the membrane performance in most cases and holds a great potential for carbon capture. Membrane module design and material, thickness, structure, and configuration were identified as key factors that contribute directly, to nanodoped membrane performance. This study also affirms that the three core parameters satisfied before turning a microporous material into a membrane are as follows: high permeability and selectivity, ease of fabrication, and robust structure. From the findings, it is also observed that the application of smart models and knowledge-based systems have not been extensively studied in nanoparticle-/material-doped membranes. More studies are encouraged because technical improvements are needed in order to achieve high performance of carbon capture using nanodoped membranes, as well as improving their durability, permeability, and selectivity of the membrane.

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“…The gas from production wells commonly comprised hydrocarbons and impurities like carbon dioxide, hydrogen sulfide, nitrogen, water, and so forth . These impurities decrease the natural gas quality, and equipment corrosion and fouling are the main drawbacks that affect the operational efficiency . Due to high demand and usage, the utilization of wells having contaminated natural gas with CO 2 and H 2 S is unavoidable .…”

Section: Introductionmentioning

confidence: 99%

Model Analysis for the Implementation of a Fast Model Predictive Control Scheme on the Absorption/Stripping CO₂ Capture Plants

et al. 2022

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The purpose of this paper is to investigate the possible implementation of the Fast model predictive control (MPC) scheme for chemical systems. Due to the difficulties associated with complicated dynamic behavior and model sensitivity, which results in considerable offsets, the Fast MPC controller has not been implemented on the CO 2 capture plant based on the absorption/stripping system. The main objective of this work is to evaluate the most appropriate model for implementing the Fast MPC control strategy, which results in fast output responses, negligible offsets, and minimum errors. The steady-state and dynamic simulation models of the CO 2 capture plant are designed in Aspen PLUS. In the System Identification Toolbox, multiple state-space models are identified to achieve a highly accurate model for the Fast MPC controller. The Fast MPC controller is then implemented to evaluate the performance under a setpoint tracking mode with ±5 and ±15% step changes. The results showed that the Fast MPC based on the statespace prediction focus model has on average 7.9 times lower offset than the simulation focus model and 10.4 times lower integral absolute error values. The comparison study concluded that the Fast MPC control strategy performs efficiently using prediction-based focus state-space models for CO 2 capture plants using the absorption/stripping system with minimum offsets and errors.

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Optimization of natural gas treatment for the removal of CO2 and H2S in a novel alkaline-DEA hybrid scrubber

Cited by 26 publications

References 19 publications

Novel Systems and Membrane Technologies for Carbon Capture

Novel Systems and Membrane Technologies for Carbon Capture

Advances in the Use of Nanocomposite Membranes for Carbon Capture Operations

Model Analysis for the Implementation of a Fast Model Predictive Control Scheme on the Absorption/Stripping CO₂ Capture Plants

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Optimization of natural gas treatment for the removal of CO2 and H2S in a novel alkaline-DEA hybrid scrubber

Cited by 26 publications

References 19 publications

Novel Systems and Membrane Technologies for Carbon Capture

Novel Systems and Membrane Technologies for Carbon Capture

Advances in the Use of Nanocomposite Membranes for Carbon Capture Operations

Model Analysis for the Implementation of a Fast Model Predictive Control Scheme on the Absorption/Stripping CO2 Capture Plants

Contact Info

Product

Resources

About

Model Analysis for the Implementation of a Fast Model Predictive Control Scheme on the Absorption/Stripping CO₂ Capture Plants