CO2 separation from offshore natural gas in quiescent and flowing states using 13X zeolite

Chen, S.J.; Tao, Zheng; Fu, Yingjuan; Zhu, Min; Li, W.L.; Li, Xiangdong

doi:10.1016/j.apenergy.2017.09.084

Cited by 23 publications

(12 citation statements)

References 46 publications

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“…There were more microchannels and fewer binders on the surface of JLOX-500 than 13X because of the less amount of binders used in the granule process, which benefited the transportation and adsorption of adsorbates on JLOX-500. 22 , 35 …”

Section: Resultsmentioning

confidence: 99%

Experimental Investigation of Adsorption and CO₂/CH₄Separation Properties of 13X and JLOX-500 Zeolites during the Purification of Liquefied Natural Gas

Sun

Tang

et al. 2022

ACS Omega

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Efficient adsorbents are critical to the purification of liquefied natural gas (LNG) by the adsorption method. In this study, the physiochemical properties of JLOX-500 and 13X were examined. JLOX-500 with more Al content had a more compact unit cell, a larger surface area and pore volume, a smaller average pore size, and more microchannels on the surface than 13X. The separation performance of the two adsorbents was evaluated by the adsorption experiment. The CO 2 adsorption capacity of JLOX-500 was higher than that of 13X, while the equilibrium and ideal selectivity and separation factor of CO 2 /CH 4 were also larger for JLOX-500. Especially in dynamic adsorption, the CO 2 adsorption capacities at 50 ppm of the gas mixture at the outlet were 3.46 and 1.64 mmol/g for JLOX-500 and 13X, respectively. The adsorption heats of CO 2 and CH 4 on JLOX-500 were 40.50 and 18.77 kJ/mol, whereas these values were 31.49 and 18.50 kJ/mol for 13X, respectively. A better separation performance for JLOX-500 was observed because of fewer binders and a lower Si/Al ratio (1.34). The Toth adsorption isotherm model described best the experimental data. According to the results of this study, JLOX-500 was a more efficient adsorbent used in purification for LNG production at high pressure with low CO 2 concentration.

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Section: Resultsmentioning

confidence: 99%

Experimental Investigation of Adsorption and CO₂/CH₄Separation Properties of 13X and JLOX-500 Zeolites during the Purification of Liquefied Natural Gas

Sun

Tang

et al. 2022

ACS Omega

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“…However, the effect the swing on the adsorption purification of the mixture was not considered. Because the swing can affect the voidage of the adsorber, the best voidage was obtained through the experiments by Chen et al 40 But the movement of the adsorbent was not clarified during the swing process.…”

Section: Introductionmentioning

confidence: 99%

Effect of swing on removing CO2 from offshore natural gas by adsorption

Chen

Tian

Tao

et al. 2020

Chemical Engineering Journal

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Removing CO2 from CH4/CO2 mixture gas is significantly important in natural gas upgrading and greenhouse gas emission control. In order to improve the separation effect, the influence of swing on removing CO2 from offshore natural gas by the adsorption was studied systematically by experiment and simulation. Firstly, the adsorption experiment was carried out under the quiescent condition, single direction swing with a frequency of 0.12Hz, bidirectional coupling swing with a frequency of 0.12 Hz and quiescent condition with a tilting angle of 20° by the swing experiment platform. The results indicated that the swing of the adsorber can reduce the adsorption purification effect, and which is not caused by the decrease of the adsorbent performance. Then, the adsorption purification model was established and the validity of the model was verified by experiments. Finally, the effects of tilting angle and L/D ratio of the porous zone, inlet flow rate of the mixture gas, particle diameter of adsorbent, and gas inlet distribution of the adsorber on adsorption purification under the quiescent and swing conditions were studied in detail. The results showed that decreasing the tilting angle of the porous zone and inlet flow rate of the mixture gas, or increasing the L/D ratio of the porous zone, the particle diameter of the adsorbent and the inlet amounts of the adsorber can reduce the adverse effect of swing on purification of natural gas. It is of great significance to improve the effect of adsorption purification of natural gas under swing condition by changing the adsorption conditions and structure of the adsorber. The research will provide a certain guidance for removing CO2 from offshore natural gas by adsorption.

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“…Several processes have been developed for biogas purification to achieve high biogas calorific values, such as absorption process using amine solvent (Hairul, Shariff, & Bustam, 2017), membranes (Kusworo, Qudratun, Utomo, Ramadhan, & Indriyanti, 2018), and adsorption using zeolites (Chen et al, 2017). The weaknesses of these processes are that they require high energy, expensive costs for the regeneration process, low adsorption capacity, and are corrosive (Kong, Shen, Cui, & Fan, 2015).…”

Section: Introductionmentioning

confidence: 99%

Preliminary Study of Chitosan Coating Silica Derived from Geotermal Solid Waste

Silviana¹,

Noorpasha²,

Rahman³

2020

cea

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Purpose: The purposes of this research are to study preparation of chitosan coating silica aerogel derived from solid geothermal waste as adsorbent of CO 2 and CH 4 separation and to study CO 2 adsorption kinetics on chitosan coating silica aerogel by Pseudo First Order and Second Order methods. Methodology was conducted consisting of several steps. First, geothermal silica was leached with H 2 SO 4 20% 1: 5 w/v. Then, chitosan was added into silica

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CO2 separation from offshore natural gas in quiescent and flowing states using 13X zeolite

Cited by 23 publications

References 46 publications

Experimental Investigation of Adsorption and CO₂/CH₄Separation Properties of 13X and JLOX-500 Zeolites during the Purification of Liquefied Natural Gas

Experimental Investigation of Adsorption and CO₂/CH₄Separation Properties of 13X and JLOX-500 Zeolites during the Purification of Liquefied Natural Gas

Effect of swing on removing CO2 from offshore natural gas by adsorption

Preliminary Study of Chitosan Coating Silica Derived from Geotermal Solid Waste

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CO2 separation from offshore natural gas in quiescent and flowing states using 13X zeolite

Cited by 23 publications

References 46 publications

Experimental Investigation of Adsorption and CO2/CH4Separation Properties of 13X and JLOX-500 Zeolites during the Purification of Liquefied Natural Gas

Experimental Investigation of Adsorption and CO2/CH4Separation Properties of 13X and JLOX-500 Zeolites during the Purification of Liquefied Natural Gas

Effect of swing on removing CO2 from offshore natural gas by adsorption

Preliminary Study of Chitosan Coating Silica Derived from Geotermal Solid Waste

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Product

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Experimental Investigation of Adsorption and CO₂/CH₄Separation Properties of 13X and JLOX-500 Zeolites during the Purification of Liquefied Natural Gas

Experimental Investigation of Adsorption and CO₂/CH₄Separation Properties of 13X and JLOX-500 Zeolites during the Purification of Liquefied Natural Gas