Green synthesis of polypyrrole for CO<sub>2</sub> capture from humid flue gases

Wang, Zhe; Li, Zhuo; Liu, Liying; Cao, Peizhi; Li, Shupeng; Li, Gang Kevin

doi:10.1039/d2gc04877a

Cited by 10 publications

(4 citation statements)

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“…direct dehydration between hydroxyl and amino groups on acidic sites, and the dehydrogenation of the -CH 2 OH group to the corresponding carbonyl intermediate on metal sites and its subsequent reductive amination. 31 As mentioned above, high pressures of H 2 are unfavorable for the generation of AMP from 2-HHMDA. This means that the conversion of 2-HHMDA to generate AMP involves dehydrogenation of the -CH 2 OH group in 2-HHMDA.…”

Section: Mechanistic Insightsmentioning

confidence: 93%

A new method for green production of 2-aminomethylpiperidine from bio-renewable 2,5-bis(aminomethyl)furan

Zhang,

Ding,

Wang

2024

Green Chem.

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Section: Mechanistic Insightsmentioning

confidence: 93%

A new method for green production of 2-aminomethylpiperidine from bio-renewable 2,5-bis(aminomethyl)furan

Zhang,

Ding,

Wang

2024

Green Chem.

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“…The kinetic performance was fitted with the pseudo-first-order and pseudo-second-order kinetic equations and isothermal adsorption models. Further details can be found in Supplementary Information S1 and Figure S1. , …”

Section: Materials and Testsmentioning

confidence: 99%

“…Further details can be found in Supplementary Information S1 and Figure S1. 46,47 2.3. Iodine Adsorption in Cyclohexane.…”

Section: Iodine Adsorption Performance Testmentioning

confidence: 99%

Analysis of Radioactive Iodine Trapping Mechanism by Zinc-Based Metal–Organic Frameworks with Various N-Containing Carboxylate Ligands

et al. 2023

ACS Appl. Mater. Interfaces

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This study aimed to develop effective adsorbents for capturing radioactive iodine in nuclear power waste gas. Two zinc metal−organic frameworks (Zn-MOFs) were synthesized and found to have favorable properties such as a large surface area, thermal stability, surface rich in π-electron-containing nitrogen, and redox potential. Adsorption experiments revealed maximum capacities of 1.25 and 1.96 g g −1 for the MOFs at 75 °C, with the pseudo-second-order kinetic model fitting the data well. The Langmuir equation provided a better fit in cyclohexane, with maximum adsorption amounts of 249 and 358 mg g −1 for Zn-MOF-1 and Zn-MOF-2, respectively. The MOFs were also stable during six cycles of adsorption and desorption. Furthermore, electron transfer occurred due to the synergistic adsorption of Zn, N, and O atoms, resulting in the conversion of some iodine to polyiodide. Zn-MOF-2 exhibited better chemisorption than Zn-MOF-1 due to a smaller highest occupied molecular orbital (HOMO)−lowest unoccupied molecular orbital (LUMO) gap. Notably, it was discovered that N-containing radicals had stronger interactions with iodine compared to radicals without N. These findings provide valuable insights into MOF synthesis and environmental protection.

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“…The most critical one is that the process has a high energy consumption requirement that is equal up to the 30% of power plant’s produced energy, resulting in a CO 2 capture cost of 40–100 $/ton and rise in electricity price of 50–90% [ 8 , 9 ]. This forced the world’s chemical engineering society to design new energy efficient processes that agree with the modern green chemistry principles [ 10 , 11 , 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Membrane Cascade Type of «Continuous Membrane Column» for Power Plant Post-Combustion Carbon Dioxide Capture Part 1: Simulation of the Binary Gas Mixture Separation

et al. 2023

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The present paper deals with the complex study of CO2 capture from combined heat power plant flue gases using the efficient technological design of a membrane cascade type of «Continuous Membrane Column» for binary gas mixture separation. In contrast to well-known multi-step or multi-stage process designs, the cascade type of separation unit provides several advantages. Here, the separation process is implemented in it by creating two counter current flows. In one of them is depleted by the high-permeable component in a continuous mode, meanwhile the other one is enriched. Taking into account that the circulating flows rate overcomes the withdrawn one, there is a multiplicative increase in separation efficiency. A comprehensive study of CO2 capture using the membrane cascade type of «Continuous Membrane Column» includes the determination of the optimal membrane material characteristics, the sensitivity study of the process, and a feasibility evaluation. It was clearly demonstrated that the proposed process achieves efficient CO2 capture, which meets the modern requirements in terms of the CO2 content (≥95 mol.%), recovery rate (≥90%), and residual CO2 concentration (≤2 mol.%). Moreover, it was observed that it is possible to process CO2 with a purity of up to 99.8 mol.% at the same recovery rate. This enables the use of this specific process design in CO2 pretreatment operations for the production of high-purity carbon dioxide.

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Green synthesis of polypyrrole for CO₂ capture from humid flue gases

Abstract: Post-combustion carbon capture from fossil fuels for concentrated sources such as power plants has been considered as one of the efficient ways to mitigate CO2 emissions. However, conventional adsorbents in...

Cited by 10 publications

References 83 publications

A new method for green production of 2-aminomethylpiperidine from bio-renewable 2,5-bis(aminomethyl)furan

A new method for green production of 2-aminomethylpiperidine from bio-renewable 2,5-bis(aminomethyl)furan

Analysis of Radioactive Iodine Trapping Mechanism by Zinc-Based Metal–Organic Frameworks with Various N-Containing Carboxylate Ligands

Membrane Cascade Type of «Continuous Membrane Column» for Power Plant Post-Combustion Carbon Dioxide Capture Part 1: Simulation of the Binary Gas Mixture Separation

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Green synthesis of polypyrrole for CO2 capture from humid flue gases

Abstract: Post-combustion carbon capture from fossil fuels for concentrated sources such as power plants has been considered as one of the efficient ways to mitigate CO2 emissions. However, conventional adsorbents in...

Cited by 10 publications

References 83 publications

A new method for green production of 2-aminomethylpiperidine from bio-renewable 2,5-bis(aminomethyl)furan

A new method for green production of 2-aminomethylpiperidine from bio-renewable 2,5-bis(aminomethyl)furan

Analysis of Radioactive Iodine Trapping Mechanism by Zinc-Based Metal–Organic Frameworks with Various N-Containing Carboxylate Ligands

Membrane Cascade Type of «Continuous Membrane Column» for Power Plant Post-Combustion Carbon Dioxide Capture Part 1: Simulation of the Binary Gas Mixture Separation

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Product

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Green synthesis of polypyrrole for CO₂ capture from humid flue gases