Systematic and efficient optimisation-based design of a process for CO2 removal from natural gas

Ecker, Anna‐Maria; Klein, Harald; Peschel, Andreas

doi:10.1016/j.cej.2022.136178

Cited by 16 publications

(4 citation statements)

References 32 publications

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“…134 Removing CO 2 from various streams ( e.g. , natural gas/biogas, 135 flue gas 136 and syn gas 137 ) and storing them under ground is considered a powerful tool to mitigate global warming. 138,139 Compared to conventional CO 2 capture technologies ( e.g.…”

Section: Pi- and Pim-derived Cms Membranes For Co2 Separationmentioning

confidence: 99%

Next-generation carbon molecule sieve membranes derived from polyimides and polymers of intrinsic microporosity for key energy intensive gas separations and carbon capture

Deng,

Wei,

et al. 2024

J. Mater. Chem. A

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Section: Pi- and Pim-derived Cms Membranes For Co2 Separationmentioning

confidence: 99%

Next-generation carbon molecule sieve membranes derived from polyimides and polymers of intrinsic microporosity for key energy intensive gas separations and carbon capture

Deng,

Wei,

et al. 2024

J. Mater. Chem. A

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“…For example, Becker et al captured 90% of CO 2 in the crude SNG via MDEA, captured 90% of H 2 in the crude SNG via polysulfone membrane, and then recycled CO 2 and H 2 to the methanation reactor to improve total CO 2 conversion and CH 4 yield [46]. However, other CO 2 capture technologies such as absorption, distillation, and flash separation have been widely used [47]. In addition to the aforementioned technologies, some emerging technologies, including membrane separation and PSA, also show enormous application potentials [48].…”

Section: Product Purificationmentioning

confidence: 99%

Efficient Utilization of Carbon Dioxide in Power-to-Gas and Power-to-Liquid Processes: A Vital Path to Carbon Neutrality

et al. 2023

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A large number of CO2 emissions caused a serious greenhouse effect, aggravating global warming and climate change. Therefore, CO2 utilization has been a research hotspot, especially after the Paris Agreement, and among the various CO2 utilization technologies, the power-to-gas (PTG) and power-to-liquid (PTL) processes have recently attracted significant attention because they can transform CO2 into fuels and/or chemicals. Considering the lack of detailed information in the literature with regard to process design and economic analysis, we have critically and comprehensively summarized the recent research progresses concerning the PTG and PTL processes. Herein, we mainly focus on the power-to-methane in the case of PTG and the power-to-syncrude, power-to-methanol, and power-to-ethers in the case of PTL. From the technical point of view, the bottleneck problem of PTG and PTL processes is the low system efficiency, which can be improved by heat integration and/or process integration. Meanwhile, from the economic point of view, the production cost of PTG and PTL processes needs to be further reduced by the following measures, such as by increasing the carbon tax, lowering the electricity price, improving the electrolysis efficiency, reducing the capital expenditure of the electrolytic cell, and formulating sustainable incentive policies. The main purpose of the paper is to present a comprehensive updated review of CO2 utilization in PTG and PTL processes from process system integration, the techno-economic aspects, such as, state-of-the-art synthesis technologies, process system integration and the production cost, and provide useful information and reliable suggestions for the future development trends of the PTG and PTL processes.

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“…Natural gas, as a clean energy source, plays a significant role in fossil energy resources. 1,2 With the ever-growing demand for energy and fuels, the catalytic activation and conversion of methane have garnered considerable attention in both academia and industry. 3,4 Simultaneously, it is crucial to reduce CO 2 emissions and enhance CO 2 utilization.…”

Section: Introductionmentioning

confidence: 99%

“…Natural gas, as a clean energy source, plays a significant role in fossil energy resources. , With the ever-growing demand for energy and fuels, the catalytic activation and conversion of methane have garnered considerable attention in both academia and industry. , Simultaneously, it is crucial to reduce CO 2 emissions and enhance CO 2 utilization. − Dry reforming of methane (DRM) is an attractive method to convert CO 2 /CH 4 into syngas (H 2 /CO). − Syngas serves as an essential raw material for synthesizing valuable chemicals and fuels. − …”

Section: Introductionmentioning

confidence: 99%

Controllable Preparation of Nano-Ni to Eliminate Step Edges of Carbon Deposition on Ni-Based Catalysts for Methane Dry Reforming

Zou

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Dry reforming of methane (DRM) presents a sustainable approach to convert greenhouse gases CO2 and CH4 into syngas. However, the industrialization of DRM is hindered by the short catalyst lifespan due to carbon deposition. Carbon deposition on Ni-catalysts is attributed to Ni step edges, which serve as carbon nucleation centers. We propose an innovative strategy to prevent carbon nucleation by modulating Ni size to eliminate Ni step edges. Ni was loaded on MCM-41, SBA-15, and DFNS (dendritic fibrous nanosilica) to prepare three distinct Ni catalysts. By altering the precursor concentration using the proposed microemulsion antisolvent coprecipitation method, we successfully adjusted the Ni size on DFNS. Ni particles with a diameter of ∼5 nm were obtained on DFNS, exhibiting excellent Ni dispersion and a physical spacing effect due to the specific preparation method and porous structure. Carbon deposition rates on Ni/MCM-41 and Ni/SBA-15 were 30.23 mgc·gcat·–1·h–1 and 16.33 mgc·gcat·–1·h–1, respectively. Remarkably, the carbon deposition rate on Ni/DFNS was only 0.15 mgc·gcat·–1·h–1. The gasification rate of deposited C to CO on the 5 nm Ni particles loaded on Ni/DFNS was five times that of the polyhedral Ni particles of Ni/MCM-41. This was attributed to the elimination of Ni step edges, which weakened C adsorption strength and enhanced the reaction of deposited C with O* to form CO. Our proposed catalyst preparation strategy is based on designing the catalyst microstructure to eliminate carbon nucleation sites. This research provides guidance for designing or preparing Ni-based catalysts for DRM with reduced carbon deposition.

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Systematic and efficient optimisation-based design of a process for CO2 removal from natural gas

Cited by 16 publications

References 32 publications

Next-generation carbon molecule sieve membranes derived from polyimides and polymers of intrinsic microporosity for key energy intensive gas separations and carbon capture

Next-generation carbon molecule sieve membranes derived from polyimides and polymers of intrinsic microporosity for key energy intensive gas separations and carbon capture

Efficient Utilization of Carbon Dioxide in Power-to-Gas and Power-to-Liquid Processes: A Vital Path to Carbon Neutrality

Controllable Preparation of Nano-Ni to Eliminate Step Edges of Carbon Deposition on Ni-Based Catalysts for Methane Dry Reforming

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