2012
DOI: 10.1021/ef3011993
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Integrated Process Study on Hydrate-Based Carbon Dioxide Separation from Integrated Gasification Combined Cycle (IGCC) Synthesis Gas in Scaled-Up Equipment

Abstract: In this work, the effects of stirring and bubbling methods on hydrate-based carbon dioxide (CO 2 ) separation from integrated gasification combined cycle (IGCC) synthesis gas are compared. Then, an integrated process of bubbling in conjunction with temperature fluctuation is proposed and adopted in the experiments, which are conducted in bench and scaledup equipment. The experimental results show that the bubbling method has a similar positive effect on the CO 2 separation as the stirring method. The optimal v… Show more

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Cited by 49 publications
(21 citation statements)
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“…While most of the above kinetic studies were carried out in stirred tank reactor configuration, various other configurations have been investigated for hydrate formation, including unstirred tank reactor (Ho et al, 2013;Zhang et al, 2009a), bubble method (Xu et al, 2012a(Xu et al, , 2012b, water-in-oil emulsion method (Ding et al, 2015;Liu et al, 2014), continuous flow, and fixed bed reactor. Fixed bed reactor (FBR) configuration has been reported in literature for its significant ability in enhancing the kinetics of hydrate formation for the HBGS process (Adeyemo et al, 2010;Babu et al, 2013c;Kumar and Kumar, 2015;Kumar et al, 2013;Park et al, 2013a;Seo and Kang, 2010;Yang et al, 2015).…”
Section: Introductionmentioning
confidence: 99%
“…While most of the above kinetic studies were carried out in stirred tank reactor configuration, various other configurations have been investigated for hydrate formation, including unstirred tank reactor (Ho et al, 2013;Zhang et al, 2009a), bubble method (Xu et al, 2012a(Xu et al, , 2012b, water-in-oil emulsion method (Ding et al, 2015;Liu et al, 2014), continuous flow, and fixed bed reactor. Fixed bed reactor (FBR) configuration has been reported in literature for its significant ability in enhancing the kinetics of hydrate formation for the HBGS process (Adeyemo et al, 2010;Babu et al, 2013c;Kumar and Kumar, 2015;Kumar et al, 2013;Park et al, 2013a;Seo and Kang, 2010;Yang et al, 2015).…”
Section: Introductionmentioning
confidence: 99%
“…The experimental data presented in those studies show that 50 lm gas bubbles with a gas flow rate of 6.75 mL/min/L are ideal for CO 2 capture from IGCC synthesis gas under the defined conditions. The results reported in [104,105] establish the benefits of the integrated process and that the scale-up of that processing equipment is feasible for hydrate-based CO 2 separation from IGCC synthesis gas. It should be noted that there is currently no implementation of this technology in industrial IGCC pilot or commercial scale plants.…”
Section: Gas Cleaning Unitmentioning
confidence: 73%
“…One mechanical method that improves hydrate formation is stirring with gas bubbles which requires less energy compared to a stirred tank. Gas bubble stirring has been studied by Xu et al on the synthesis of a gas coming from an IGCC plant [104,105]. The experimental data presented in those studies show that 50 lm gas bubbles with a gas flow rate of 6.75 mL/min/L are ideal for CO 2 capture from IGCC synthesis gas under the defined conditions.…”
Section: Gas Cleaning Unitmentioning
confidence: 99%
“…Therefore, it is preferred to continue operating the gas separation processes to achieve a high separation performance. In the previous studies, the values of ðS:Fr:Þ CO 2 were determined to be 0.10-0.89 in the semi-batch type gas separation experiments from the H 2 + CO 2 or N 2 + CO 2 gas mixtures [21,[32][33][34]. It might not be straightforward to directly compare the values of ðS:Fr:Þ CO 2 in the previous studies and this study as the feed gas components and experimental conditions were not the same.…”
Section: Split Fractionsmentioning
confidence: 99%