A Novel Approach to Carbon Dioxide Capture and Storage

Spigarelli, Brett P.

doi:10.37099/mtu.dc.etds/633

Cited by 2 publications

(5 citation statements)

References 142 publications

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“…In the absorption technique, the CO 2 gas molecule disintegrates with a bulk material of solvent. 27 Absorption system or solvent scrubbing is mainly used in the petroleum and chemical industries. It is categorized into two main groups, namely physical absorption and chemical absorption.…”

Section: Co2 Capture Methodsmentioning

confidence: 99%

“…Based on Henry's principle, CO 2 absorption is performed by neutralization so that the pH between an acid gas and an alkaline absorbent. 27…”

Section: Co2 Capture Methodsmentioning

confidence: 99%

“…Finally, CO 2 is condensed out and stored in a separate container. 27 The chemical equation of the desorption process is as follows: …”

Section: Co2 Capture Methodsmentioning

confidence: 99%

“…Based on Henry's principle, CO 2 absorption is performed by neutralization so that the pH between an acid gas and an alkaline absorbent. 27 The exhaust flue gas contains contaminant impurities like sulfur oxide (SO x ), NO x , and particulate matter (PM), which must be removed before treating the absorption process. Flue gas desulphurization (FGD) and selective catalytic or non-catalytic reduction (SCR or SNCR) processes remove gases such as SO 2 and NO 2 from the exhaust flue gas streams.…”

Section: Absorption Processmentioning

confidence: 99%

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A review on materials and processes for carbon dioxide separation and capture

Maniarasu

Rathore

Murugan

2021

Energy & Environment

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In today’s world, owing to industrial expansion, urbanization, the rapid growth of the human population, and the high standard of living, the utilization of the most advanced technologies is unavoidable. The enhanced anthropogenic activities worldwide result in a continuous increase in global warming potential, thereby raising a global concern. The constant rise in global warming potential forces the world to mitigate greenhouse gases, particularly carbon dioxide. Carbon dioxide is considered as the primary contributor responsible for global warming and climatic changes. The global anthropogenic carbon dioxide emissions released into the atmosphere can eventually deteriorate the environment and endanger the ecosystem. Combating global warming is one of the main challenges in achieving sustainable development. Carbon capture and storage is a potential solution to mitigate carbon dioxide emissions. There are three main methods for carbon capture and storage: post-combustion, pre-combustion, and oxy-fuel combustion. Among them, post-combustion is used in thermal power plants and industrial sectors, all of which contribute a significant amount of carbon dioxide. Different techniques such as physical and chemical absorption, physical and chemical adsorption, membrane separation, and cryogenic distillation used for carbon capture are thoroughly discussed and presented. Currently, there are various materials including absorbents, adsorbents, and membranes used in carbon dioxide capture. Still, there is a search for new and novel materials and processes for separating and capturing carbon dioxide. This review article provides a comprehensive review of different methods, techniques, materials, and processes used for separating and capturing carbon dioxide from significant stationary point sources.

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Section: Co2 Capture Methodsmentioning

confidence: 99%

“…Based on Henry's principle, CO 2 absorption is performed by neutralization so that the pH between an acid gas and an alkaline absorbent. 27…”

Section: Co2 Capture Methodsmentioning

confidence: 99%

“…Finally, CO 2 is condensed out and stored in a separate container. 27 The chemical equation of the desorption process is as follows: …”

Section: Co2 Capture Methodsmentioning

confidence: 99%

Section: Absorption Processmentioning

confidence: 99%

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A review on materials and processes for carbon dioxide separation and capture

Maniarasu

Rathore

Murugan

2021

Energy & Environment

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“…The gas flow rate was regulated at the range of 2.0-10.8 LPM. The concentration of CO2 at the inlet was regulated constantly at 15.5%vol, which mimicking the concentration of fuel combustion for electrical production (Spigarelli, 2013). A high-speed camera (Vision research, Miro -110, USA) connecting to a computer was placed at the center of the column in order to investigate bubble sizes as well as their velocity.…”

Section: Experimental Setup (A) Bubble Column Setupmentioning

confidence: 99%

Study of gas-liquid mass transfer in bubble and spray column adding solid media

Wongwailikhit

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Gas absorption is a separation process that transfers substances from gas phase to liquid phases due to the different concentrations. The operation can be applied in many treatments or purifying processes e.g. CO2 absorption from biogas or volatile organic compounds (VOCs) recovery from petroleum emission air. The conventional unit operation using for the gas absorption process are bubble column and spray column. Although there are several literatures reporting the efficiency of spray columns and bubble columns, those were done separately. Therefore, this research projected to investigate both hydrodynamics and mass transfer in both spray and bubble columns and comparing their specific power consumptions in order to develop the selection a guideline for industrial usages. The results indicated that the bubble column had larger specific interfacial area than the spray column when using at small gas loading rate. At this range of operation, the bubble column yielded higher overall mass transfer coefficient with the same specific power consumption. However, when operating at high gas loading rate, the spray column was the one better than the bubble column since the bubble column consumed larger power consumption as the pressure drop of the bubble column was mostly due to the gas flow. In addition, this research also studied the effect of solid phase on the hydrodynamics and mass transfer in the bubble column and spray column. By using the colorimetric method of red bottle experiment, it was found that the bubble-particles collision diminished the mass transfer of bubbles because the collision slowed down the bubbles especially for the small bubbles due to the fact that the small bubble simply lost their velocities from the collision. However, there was an advantage of introducing the particles since solid particles could obstruct the rising bubble and reduced its rising velocity. Consequently, the contact time between gas and liquid is increased and resulted in higher gas hold up and specific interfacial area. Therefore, with the appropriate conditions for which solid promoted specific interfacial area higher than diminished the mass transfer coefficient, the higher mass transfer rate was achieved. For the experimental setup using in this research, the enhance of mass transfer rate was occurred when the movable ring-shaped particles were introduced into the column that had large orifice sizes of gas sparger. In addition, this thesis also developed a colorimetric method to determine the overall mass transfer coefficient of oxygen without using other equipment rather than measuring the time which color of the solution changed from colorless to saturated red. This technique is very useful in the aspect of education since it does not require another equipment for measurement rather than visually observation. Nevertheless, the performance of optical fiber probes for hydrodynamics determination of droplets were also investigated.

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A Novel Approach to Carbon Dioxide Capture and Storage

Cited by 2 publications

References 142 publications

A review on materials and processes for carbon dioxide separation and capture

A review on materials and processes for carbon dioxide separation and capture

Study of gas-liquid mass transfer in bubble and spray column adding solid media

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