Preparation of granular activated carbons from yellow mombin fruit stones for CO2 adsorption

Fiuza, Raildo Alves; Neto, Raimundo Medeiros de Jesus; Correia, Laise Bacelar; Andrade, Heloysa Martins Carvalho

doi:10.1016/j.jenvman.2015.06.053

Cited by 40 publications

(10 citation statements)

References 37 publications

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“…Carbon dioxide (CO 2 ) is the gas most influential in causing climate change. Although many alternative energy sources have been developed, some of which are now fully or partially commercialized, fossil fuels are currently primary energy sources and this trend will continue in the near future. , Therefore, carbon capture and storage/utilization (CCSU) technology is regarded as one of the most important methods to reduce CO 2 emission; it is also believed to be a promising interim approach until alternative energy sources that are economical and environmentally friendly have been sufficiently developed. − CO 2 capture using alkanolamine such as monoethanol-amine (MEA) and methyl-diethanol-amine (MDEA) solvents is known as a partially commercialized chemical absorption process. , During the process, CO 2 adheres to the amine to be converted into carbamate, which is a chemically stable substance, and desorbed from the solvent by stripping. Despite its commercialization, this technology has many drawbacks such as solvent degradation, corrosion of equipment, and high energy consumption for solvent regeneration. − …”

Section: Introductionmentioning

confidence: 99%

Carbon Dioxide Fixation by Combined Method of Physical Absorption and Carbonation in NaOH-Dissolved Methanol

Han

Wee

2017

Energy Fuels

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The present study investigates the potential of a process as one of the carbon capture and storage/utilization (CCSU) technologies. The process involves a technology that combines the CO2 physical absorption and mineral carbonation in NaOH-dissolved methanol and includes CO2 desorption and methanol regeneration. Sodium methyl carbonate (SMC) is precipitated as CO2-fixing material in relatively highly concentrated NaOH solution and the amount of CO2 physically absorbed is estimated to be approximately 4.36 g CO2/500 mL methanol at ambient condition. The CCSU capacity of the process based on the gas phase and cake weight measurement is calculated to be 11.02 g CO2/(6 g NaOH/500 mL methanol) and 10.17 g CO2/(6 g NaOH/500 mL methanol), respectively. The amounts of CO2 desorbed and CO2 fixed by SMC as well as Na2CO3 via the evaporation of solution that remains after carbonation are estimated to be 5.64 g CO2/(6 g NaOH/500 mL methanol) and 4.53 g CO2/(6 g NaOH/500 mL methanol), respectively. Therefore, the CO2 capture and fixation ratio of the process was calculated to be 55.46% and 45.54%, respectively. Although the overall methanol recovery ratio is calculated to be 90.1%, the loss can be further substantially reduced during the process by employing more advanced equipment and carrying out a more detailed operation. In addition, precipitated SMC separated methanol can be reused for the subsequent carbonation without any treatment.

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Section: Introductionmentioning

confidence: 99%

Carbon Dioxide Fixation by Combined Method of Physical Absorption and Carbonation in NaOH-Dissolved Methanol

Han

Wee

2017

Energy Fuels

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“…Fiuza et al 116 reported that the activated carbon prepared from yellow mombin fruit stones by chemical activation (using nitric acid (HNO 3 ), phosphoric acid (H 3 PO 4 ), and potassium hydroxide (KOH)) and physical activation (using CO 2 ) exhibited CO 2 adsorption capacity of 0.023-0.063 mmol g −1 obtained in the mixture of 50% CO 2 and 50% nitrogen (N 2 ) at 1 bar and 40 °C. The activated carbon prepared via KOH activation, which exhibited the highest CO 2 adsorption capacity was further tested for 10 adsorption/desorption cycles.…”

Section: Activated Carbonmentioning

confidence: 99%

A review of CO₂adsorbents performance for different carbon capture technology processes conditions

2021

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The utilization of various conventional and emerging solid adsorbents is an attractive carbon capture method for post-combustion and direct air capture (DAC). This review aims to identify adsorbents with the highest CO 2 adsorption performance at various CO 2 capture conditions inclusive of pre-combustion, post-combustion, and DAC to aid the selection of adsorbents. It presents the various adsorbents' physical and chemical properties, their synthesis methods, CO 2 adsorption performance, and their advantages as CO 2 adsorbents. Findings of the review show that NaX@NaA core-shell microspheres possess the highest CO 2 adsorption capacity at 5.60 mmol g −1 for adsorption at DAC conditions. MOF-177-TEPA exhibited the highest post-combustion condition CO 2 adsorption capacity at 4.60 mmol g −1 given tetraethylenepentamine properties leading to low diffusion resistance for CO 2 and easy access to active sites. Approximation of these adsorbents' adsorption capacity within pre-combustion capture temperature at 1 bar for oxy-combustion process was 0.0000026-48.71 mmol g −1 . It is crucial to understand and evaluate these adsorbents' characteristics for application in the appropriate adsorption conditions. This considers their usage limitations on pilot-scale CO 2 capture because of low productivity, poor durability, and stability for prolonged cyclic adsorption-desorption, expensive adsorption system, high gas flow rate, high adsorbate accommodation requirement, longer flow switching time, and low tolerance towards water and impurities present in flue gas. This paper hence presents future enhancements in overcoming their limitations to accommodate pilot scale carbon capture. These are beneficial in providing insights for capturing CO 2 from flue gases emitted in industries.

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“…As previously mentioned, some solid adsorbents that have been adopted for the trapping of carbonaceous substances/CO 2 include activated carbon (AC), single/multiwalled carbon nanotubes (CNTs), and graphenes. ACs are inexpensive, porous-amorphous structures, which possess high specific surface areas that serve as gas traps for greenhouse gas (GHG)/CO 2 -uptake [192][193][194]. Unlike zeolites, one of the basic ills associated with the use of ACs for CO 2 adsorption is that there are no active sites for the gas to bond with the adsorbate as orchestrated by the presence of cations in zeolite.…”

Section: Adsorption: Packed Beds (Alumina/activated Carbon/ Zeolite)mentioning

confidence: 99%

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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Preparation of granular activated carbons from yellow mombin fruit stones for CO2 adsorption

Cited by 40 publications

References 37 publications

Carbon Dioxide Fixation by Combined Method of Physical Absorption and Carbonation in NaOH-Dissolved Methanol

Carbon Dioxide Fixation by Combined Method of Physical Absorption and Carbonation in NaOH-Dissolved Methanol

A review of CO₂adsorbents performance for different carbon capture technology processes conditions

Novel Systems and Membrane Technologies for Carbon Capture

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Preparation of granular activated carbons from yellow mombin fruit stones for CO2 adsorption

Cited by 40 publications

References 37 publications

Carbon Dioxide Fixation by Combined Method of Physical Absorption and Carbonation in NaOH-Dissolved Methanol

Carbon Dioxide Fixation by Combined Method of Physical Absorption and Carbonation in NaOH-Dissolved Methanol

A review of CO2adsorbents performance for different carbon capture technology processes conditions

Novel Systems and Membrane Technologies for Carbon Capture

Contact Info

Product

Resources

About

A review of CO₂adsorbents performance for different carbon capture technology processes conditions