Experimental investigation of the effect of addition of different activators to aqueous solution of potassium carbonate: Absorption rate and solubility

Ramazani, R.; Mazinani, Saeed; Jahanmiri, A.; Bruggen, Bart Van der

doi:10.1016/j.ijggc.2015.12.003

Cited by 35 publications

(11 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, this solvent has a major disadvantage, which is sluggish mass transfer rate in liquid phase. This will consequently result in a poor mass transfer performance and subsequently, large and expensive equipment will be needed [14,20,24,25].…”

Section: Introductionmentioning

confidence: 99%

“…Figure 2 illustrates the gas absorption system in an infinitesimal step size of the absorption packed column for mass balance. The chemical mole fraction in the solvent may be estimated by calculating the mass balance over the column height step size, as shown in Equation 24: (24) where is the mole fraction of active PCGLY in the water and is the liquid molar flow rate. Figure 3 shows the simplified flowchart of CO2 absorption simulation model.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Mass Transfer Performance Study for CO2 Absorption into Non-Precipitated Potassium Carbonate Promoted with Glycine Using Packed Absorption Column

et al. 2020

View full text Add to dashboard Cite

The removal of carbon dioxide (CO2) at offshore operation requires an absorption system with an environmentally friendly solvent that can operate at elevated pressure. Potassium carbonate promoted with glycine, PCGLY, is a green solvent that has potential for offshore applications. For high solvent concentrations at elevated pressure, the by-product of CO2 absorption consists of precipitates that increase operational difficulty. Therefore, this study was done to assess the CO2 absorption performance of non-precipitated PCGLY with concentration 15wt%PC+3wt%GLY, which is known to have comparable solubility performance with MDEA. A packed absorption column was used to identify the CO2 removal efficiency, mass transfer coefficient in liquid film, k l a e , and overall volumetric mass transfer coefficient, K G a v . A simplified rate-based model was used to determine k l a e and K G a v based on the experimental data with a maximum MAE value, 0.057. The results showed that liquid flow rates and liquid temperature gives significant effects on the k l a e and K G a v profile, whereas gas flow rate and operating pressure had little effect. The CO2 removal efficiency of PCGLY was found to be 77%, which was only 2% lower than 1.2 kmol/m3 MDEA. K G a v of PCGLY is comparable with MDEA. The absorption process using PCGLY shows potential in the CO2 sweetening process at offshore.

show abstract

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Mass Transfer Performance Study for CO2 Absorption into Non-Precipitated Potassium Carbonate Promoted with Glycine Using Packed Absorption Column

et al. 2020

View full text Add to dashboard Cite

show abstract

“…These cannot explain the observations of this study. The promotional or synergistic effect of PZ to K 2 CO 3 has been suggested to occur through an intermediate formed between CO 2 (aq) and PZ [20][21][22]. This hypothesis, however, still needs to be verified experimentally.…”

Section: Recent Advances In Carbon Capture and Storagementioning

confidence: 99%

Synergistic Effect on CO2 Capture by Binary Solvent System

Zhuang¹,

Clements²

2017

Recent Advances in Carbon Capture and Storage

View full text Add to dashboard Cite

CO absorption into a binary solvent system was studied using a batch-mode gas/liquid absorption apparatus. The binary system composed of potassium carbonate K CO and piperazine PZ showed a strong synergistic efect, whereby the binary solvent performed beter than either of the individual solvents for CO absorption. The other pairs of solvents tested K CO /monoethanolamine ME" and K CO /NaOH showed no synergistic efects. The results indicate that this synergistic efect only occurs with speciic pairs of solvents. The mechanism for the synergistic efect is postulated that the activated CO on PZ migrates to K CO , or a more reactive intermediate complex between K CO and PZ is formed.

show abstract

“…New absorbents [4] have been studied for this purpose, such as single amine absorbents, amine blends, multi face absorbents, e.g., the formulation of aqueous piperazine (PZ) and 2-amino-2-methyl-1-propanol (AMP), econamine FG+, KS-1 and Cansolv. Due to the fact that this kind of absorbents shows some disadvantages as high cost, low capture capacity and high energy consumption [14,15], it was investigated the potassium carbonate K 2 CO 3 as an alternative to amines and found to be a promising absorbent with many advantages [15,16].…”

Section: Co 2 Capture Technologymentioning

confidence: 99%

Carbon Capture and Storage: A Review of Mineral Storage of CO2 in Greece

Kelektsoglou

2018

Sustainability

View full text Add to dashboard Cite

As the demand for the reduction of global emissions of carbon dioxide (CO2) increases, the need for anthropogenic CO2 emission reductions becomes urgent. One promising technology to this end, is carbon capture and storage (CCS). This paper aims to provide the current state-of-the-art of CO2 capure, transport, and storage and focuses on mineral carbonation, a novel method for safe and permanent CO2 sequestration which is based on the reaction of CO2 with calcium or magnesium oxides or hydroxides to form stable carbonate materials. Current commercial scale projects of CCS around Europe are outlined, demonstrating that only three of them are in operation, and twenty-one of them are in pilot phase, including the only one case of mineral carbonation in Europe the case of CarbFix in Iceland. This paper considers the necessity of CO2 sequestration in Greece as emissions of about 64.6 million tons of CO2 annually, originate from the lignite fired power plants. A real case study concerning the mineral storage of CO2 in Greece has been conducted, demonstrating the applicability of several geological forms around Greece for mineral carbonation. The study indicates that Mount Pindos ophiolite and Vourinos ophiolite complex could be a promising means of CO2 sequestration with mineral carbonation. Further studies are needed in order to confirm this aspect.

show abstract

Experimental investigation of the effect of addition of different activators to aqueous solution of potassium carbonate: Absorption rate and solubility

Cited by 35 publications

References 27 publications

Mass Transfer Performance Study for CO2 Absorption into Non-Precipitated Potassium Carbonate Promoted with Glycine Using Packed Absorption Column

Mass Transfer Performance Study for CO2 Absorption into Non-Precipitated Potassium Carbonate Promoted with Glycine Using Packed Absorption Column

Synergistic Effect on CO2 Capture by Binary Solvent System

Carbon Capture and Storage: A Review of Mineral Storage of CO2 in Greece

Contact Info

Product

Resources

About