Experimental and modeling of CO2 capture by dry sodium hydroxide carbonation

Kianpour, Mohsen; Sobati, Mohammad Amin; Shahhosseini, Shahrokh

doi:10.1016/j.cherd.2012.04.005

Cited by 32 publications

(15 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Vandeginste and Piessens [39] applied the API-RP-14E formula (Equation (3)) to calculate erosional velocity and arrive at an erosional velocity of 4.3 m/s, which is higher than 2.0 m/s widely used. A similar equation used to specify the maximum velocity to avoid noise and erosion according to API standard [53], is given in Equation (4). Velocity values computed with Equation (4) are higher than values computed with Equation (3).…”

Section: Figurementioning

confidence: 99%

See 1 more Smart Citation

CO2 Pipeline Design: A Review

2018

View full text Add to dashboard Cite

There is a need to accurately design pipelines to meet the expected increase in the construction of carbon dioxide (CO 2 ) pipelines after the signing of the Paris Climate Agreement. CO 2 pipelines are usually designed with the assumption of a pure CO 2 fluid, even though it usually contains impurities, which affect the critical pressure, critical temperature, phase behaviour, and pressure and temperature changes in the pipeline. The design of CO 2 pipelines and the calculation of process parameters and fluid properties is not quite accurate with the assumption of pure CO 2 fluids. This paper reviews the design of rich CO 2 pipelines including pipeline route selection, length and right of way, fluid flow rates and velocities, need for single point-to-point or trunk pipelines, pipeline operating pressures and temperatures, pipeline wall thickness, fluid stream composition, fluid phases, and pipeline diameter and pressure drop calculations. The performance of a hypothetical pipeline was simulated using gPROMS (ver. 4.2.0) and Aspen HYSYS (ver.10.1) and the results of both software were compared to validate equations. Pressure loss due to fluid acceleration was ignored in the development of the diameter/pressure drop equations. Work is ongoing to incorporate fluid acceleration effect and the effects of impurities to improve the current models.

show abstract

Section: Figurementioning

confidence: 99%

“…About three-fourths of atmospheric CO 2 rise is because of burning fossil fuels [3], which releases CO 2 into the atmosphere. If this unchecked release of CO 2 into the atmosphere continues, temperatures are expected to increase by about 6.4 • C by year 2100 [4] with attendant rises in sea level.…”

Section: Introductionmentioning

confidence: 99%

CO2 Pipeline Design: A Review

2018

View full text Add to dashboard Cite

show abstract

“…In addition, a procedure modified at our last works [32] [33] was selected to design a relatively small and entirely accurate network.…”

Section: Artificial Intelligent Modelingmentioning

confidence: 99%

Experimental Investigation and Modeling of Activity Coefficient at Infinite Dilution of Solutes Using Dicationic Solvent Based on Pyrrolidinium as a New Stationary Phase in Gas Chromatography

Yahyaee

Nazifi

Kianpour

et al. 2018

AJAC

Self Cite

View full text Add to dashboard Cite

Activity coefficients at infinite dilution, γ ∞ i, were calculated for 12 solutes, with organic solutes including linear alcohols (methanol, ethanol, propanol), linear alkanes (heptane, octane), benzene, toluene, cyclohexane, 1, 2-dichloroethane, trichloroethylene, acetonitrile and carbon tetrachloride. The values of γ ∞ i were determined via either thermodynamic or artificial neural network modelling at different temperatures. A comparison between extracted results from these two methods confirmed that experimental and predicted results are roughly the same. The accuracy of predicted results proves this model is fully compatible with a wide range of solutes, and it can readily be used as an alternative to conventional gas-liquid chromatography for the measurements of activity coefficient at infinite dilution.

show abstract

“…CO 2 is captured by sorbent carbonation in the first stage (i.e., forward reactions and ); in the calcination step, the sorbent is regenerated, giving pure CO 2 . Because NaOH is cheap, only slightly corrosive, and environmentally friendly, NaOH is used for CO 2 adsorption …”

Section: Introductionmentioning

confidence: 99%

Exploiting response surface methodology (RSM) as a novel approach for the optimization of carbon dioxide adsorption by dry sodium hydroxide

Saeidi

Ghaemi

Tahvildari

et al. 2018

J Chinese Chemical Soc

View full text Add to dashboard Cite

As a novel strategy involving dry NaOH sorbent for CO2 capture from air is described. The influence of significant operating parameters, namely the temperature, pressure, and NaOH loading, on the CO2 capture in a fixed‐bed reactor is experimentally explored using the response surface methodology (RSM). Accordingly, in this paper, RSM based on central composite design (CCD) is exploited to design experiments, build models, and determine the optimum conditions for desirable responses. The NaOH sorbent was then characterized by various approaches such as Fourier transform infrared spectroscopy and X‐ray diffraction analysis before and after the reactions. Besides, numerous isotherm models were applied to mathematically model the CO2 adsorption, and on the basis of the regression coefficient (R2), the Frendlich model was found to deliver a perfect fit to the experimental data, based on the closeness of the R2‐value to unity. In addition to the experiments, the kinetic parameters were evaluated using a nonlinear least squares technique. The outcome achieved in this investigation can serve as a benchmark while searching for inexpensive and superior dry NaOH sorbent production in future studies.

show abstract

Experimental and modeling of CO2 capture by dry sodium hydroxide carbonation

Cited by 32 publications

References 51 publications

CO2 Pipeline Design: A Review

CO2 Pipeline Design: A Review

Experimental Investigation and Modeling of Activity Coefficient at Infinite Dilution of Solutes Using Dicationic Solvent Based on Pyrrolidinium as a New Stationary Phase in Gas Chromatography

Exploiting response surface methodology (RSM) as a novel approach for the optimization of carbon dioxide adsorption by dry sodium hydroxide

Contact Info

Product

Resources

About