Selective CO adsorption using sulfur-doped Ni supported by petroleum-based activated carbon

Kwon, Sunil; You, Young-Woo; Lim, Hyungseob; Lee, Jin‐Hee; Chang, Tae‐Sun; Kim, Yejin; Lee, Hyunjoo; Kim, Beom-Sik

doi:10.1016/j.jiec.2019.11.041

Cited by 12 publications

(9 citation statements)

References 54 publications

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“…Regarding new adsorbents for N 2 and CO impurities, attention has been paid to transition metals with the aim to increase the adsorption capacity of CO. The interaction between transition metals and carbon monoxide by means of reversible complexation reaction results in higher CO adsorption capacity. − This solution was studied in multicomponent mixtures (74.36 vol % H 2 , 19.18 vol % CO 2 , 4.01 vol % CH 4 , and 2.45 vol % of CO) by Relvas et al The commercial activated carbon was modified by wet impregnation of CuCl 2 -2H 2 O. The product streams showed high H 2 purity (99.7 vol %) and low CO impurity (0.17 ppm) with 76.2% of H 2 recovery.…”

Section: Hydrogen Recovery From Coke Oven Gasmentioning

confidence: 99%

Hydrogen Recovery from Coke Oven Gas. Comparative Analysis of Technical Alternatives

Moral

Ortiz-Imedio

Ortiz

et al. 2022

Ind. Eng. Chem. Res.

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The recovery of energy and valuable compounds from exhaust gases in the iron and steel industry deserves special attention due to the large power consumption and CO 2 emissions of the sector. In this sense, the hydrogen content of coke oven gas (COG) has positioned it as a promising source toward a hydrogen-based economy which could lead to economic and environmental benefits in the iron and steel industry. COG is presently used for heating purposes in coke batteries or furnaces, while in high production rate periods, surplus COG is burnt in flares and discharged into the atmosphere. Thus, the recovery of the valuable compounds of surplus COG, with a special focus on hydrogen, will increase the efficiency in the iron and steel industry compared to the conventional thermal use of COG. Different routes have been explored for the recovery of hydrogen from COG so far: i) separation/purification processes with pressure swing adsorption or membrane technology, ii) conversion routes that provide additional hydrogen from the chemical transformation of the methane contained in COG, and iii) direct use of COG as fuel for internal combustion engines or gas turbines with the aim of power generation. In this study, the strengths and bottlenecks of the main hydrogen recovery routes from COG are reviewed and discussed.

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Section: Hydrogen Recovery From Coke Oven Gasmentioning

confidence: 99%

Hydrogen Recovery from Coke Oven Gas. Comparative Analysis of Technical Alternatives

Moral

Ortiz-Imedio

Ortiz

et al. 2022

Ind. Eng. Chem. Res.

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“…55 Excellent cycling stability was also reported for Cu/AC(56) in a six-cycle test involving adsorption at 298 K and regeneration under vacuum at 353 K. 56 On the other hand, although the adsorption capacity of NiS/AC(57) was much higher than those reported for other Cu + -impregnated adsorbents (Tables S2−S5), a high temperature (∼673 K) was required for its regeneration. 57 In adsorptive cyclic processes, the desorption (regeneration) is the main energy consumption step to increase the operating expenses directly. In addition, facilities with high specifications, such as a vacuum system, a heater with a heat-exchanger system, and specialized fittings and valves, are required for harsh desorption operation in processes.…”

Section: Overview Of Co Adsorption Equilibria Of Pristine and Modifie...mentioning

confidence: 99%

“…It was reported that adsorbed CO molecules on Ni/Al 2 O 3 and Ni/SiO 2 were barely desorbed at 273 K and 10 −3 Torr. 90 A recent study on enhancing the desorption characteristics 57 reported that sulfur doping of AC could contribute to reducing Ni−CO interactions (Table 4), and NiS/AC(57) exhibited a high adsorption capacity of 6.56 mmol/g. In the breakthrough test with a temperature swing (308−673 K), NiS/AC(57) maintained a CO adsorption− desorption activity of 95.2% after 10 cycles.…”

Section: Physical and Chemical Characteristics Ofmentioning

confidence: 99%

“…(a) Isosteric heats of adsorption and (b) CO/CO 2 selectivities of adsorbents as functions of CO adsorption amount and (c, d) CO adsorption amounts on adsorbents as functions of BET surface area at (c) 100 kPa and (d) 10 kPa. ,,,,,− ,,,,,− ,,,− ,,,− ,,− ,− ,,− ,− Solid symbols are for Cu + impregnated adsorbents, and open symbols are for pristine adsorbents.…”

Section: Overview Of Co Adsorption Equilibria Of Pristine and Modifie...mentioning

confidence: 99%

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Overview of Carbon Monoxide Adsorption Performance of Pristine and Modified Adsorbents

Kim

Cho

et al. 2022

J. Chem. Eng. Data

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Carbon monoxide (CO) is a key material in C1 chemistry for chemical production and CO2 reduction, whereas in applications, such as H2 for fuel cells, its concentration must be kept below 0.2 ppm. Adsorption technology is useful for both CO removal and production to provide environmental sustainability for the energy and chemical industries. In this review, the CO adsorption performances of various adsorbents, such as activated carbons, zeolites, metal–organic frameworks, activated alumina, mesoporous silicas, and their modified adsorbents, are collected, and their physical and chemical properties and CO selectivities are summarized. Cu+ impregnation is a powerful and widely used modification method to enhance the CO adsorption of adsorbents. Therefore, the preparation methods and their effects on CO adsorption are also compared and reviewed. The data and analysis in this review can provide insights for the development of novel adsorbents and processes for CO removal and production.

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“…Vast work among the academic community has been taken to alleviate the negative effect of the rapid growth of atmospheric CO 2 concentration at a global level, such as developing renewable and clean energies [3][4][5] and functional porous materials [6,7], and decades of research and projects on carbon capture, utilization and sequestration (CCUS) [8][9][10] have been conducted to reduce the influence of carbon emission. And various solid absorbents, such like activated carbon (AC) [11][12][13][14], molecular sieve [15,16], metal oxides [17] and MOF [18], Among these products, ACs have been widely applied in carbon dioxide capture due to their special pore structure, specific surface area and chemical stability, and simple processing; tremendous research efforts have focused on the adsorption capacity, selectivity and renew-ability of activated carbon products [19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

In Situ Dry Chemical Synthesis of Nitrogen-Doped Activated Carbon from Bamboo Charcoal for Carbon Dioxide Adsorption

Ying

Tian²,

Liu³

et al. 2022

Materials

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In this work, nitrogen-doped bamboo-based activated carbon (NBAC) was in situ synthesized from simply blending bamboo charcoal (BC) with sodamide (SA, NaNH2) powders and heating with a protection of nitrogen flow at a medium temperature. The elemental analysis and X-ray photoelectron spectra of as-synthesized NBAC showed quite a high nitrogen level of the simultaneously activated and doped samples; an abundant pore structure had also been determined from the NBACs which has a narrow size distribution of micropores (<2 nm) and favorable specific surface area that presented superb adsorption performance. The fcarbon dioxide (CO2) adsorption of the NBACs was measured at 0 °C and 25 °C at a pressure of 1 bar, whose capture capacities reached 3.68–4.95 mmol/g and 2.49–3.52 mmol/g, respectively, and the maximum adsorption could be observed for NBACs fabricated with an SA/BC ratio of 3:1 and activated at 500 °C. Further, adsorption selectivity of CO2 over N2 was deduced with the ideal adsorbed solution theory ((IAST), the selectivity was finally calculated which ranged from 15 to 17 for the NBACs fabricated at 500 °C). The initial isosteric heat of adsorption (Qst) of NBACs was also determined at 30–40 kJ/mol, which suggested that CO2 adsorption was a physical process. The results of ten-cycle adsorption-desorption experimentally confirmed the regenerated NBACs of a steady CO2 adsorption performance, that is, the as-synthesized versatile NBAC with superb reproducibility makes it a perspective candidate in CO2 capture and separation application.

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Selective CO adsorption using sulfur-doped Ni supported by petroleum-based activated carbon

Cited by 12 publications

References 54 publications

Hydrogen Recovery from Coke Oven Gas. Comparative Analysis of Technical Alternatives

Hydrogen Recovery from Coke Oven Gas. Comparative Analysis of Technical Alternatives

Overview of Carbon Monoxide Adsorption Performance of Pristine and Modified Adsorbents

In Situ Dry Chemical Synthesis of Nitrogen-Doped Activated Carbon from Bamboo Charcoal for Carbon Dioxide Adsorption

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