A carbon molecular sieve membrane-based reactive separation process for pre-combustion CO2 capture

Cao, Mingyuan; Zhao, Linghao; Xu, Dongwan; Ciora, Richard; Liu, Paul K. T.; Manousiouthakis, Vasilios I.; Tsotsis, Theodore T.

doi:10.1016/j.memsci.2020.118028

Cited by 33 publications

(13 citation statements)

References 49 publications

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“…2 (Osman et al 2021 ). Afterward, CO 2 is separated; it can be stored using various methods such as chemical absorption, adsorption, and membrane separation (Cao et al 2020 ). The removal of CO 2 in pre-combustion is much easier than the oxyfuel and post-combustion method because of the high concentration of CO 2 in the syngas due to the water to gas shift stage (Osman et al 2021 ).…”

Section: Current Technologies To Manage Air Pollution In Coal Power P...mentioning

confidence: 99%

“…The input stream fed to the absorbers mainly contains CO 2 , N 2 , and H 2 O (Marinina et al 2021 ). This route is preferably retrofitted to existing small-scale power plants with a recovery rate of CO 2 is 800tons/day (Cao et al 2020 ). The major challenge is that the CO 2 level is low (7–14%) in flue gas, and the cost associate with the control unit is high to reach the concentration > 95.5% (Osman et al 2021 ).…”

Section: Current Technologies To Manage Air Pollution In Coal Power P...mentioning

confidence: 99%

“…The major challenge is that the CO 2 level is low (7–14%) in flue gas, and the cost associate with the control unit is high to reach the concentration > 95.5% (Osman et al 2021 ). The most common post-combustion methods are (1) absorption, (2) adsorption, and (3) membrane separation technologies (Cao et al 2020 ). In physical absorption, CO 2 is absorbed into the solution without any chemical reaction, based on Henry's law at low temperature and high CO 2 partial pressures (Zhang et al 2019 ).…”

Section: Current Technologies To Manage Air Pollution In Coal Power P...mentioning

confidence: 99%

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Update on air pollution control strategies for coal-fired power plants

Asif

Chen

Wang

et al. 2022

Clean Techn Environ Policy

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Coal is expected to remain a significant power supply source worldwide and shifting to carbon-neutral fuels will be challenging because of growing electricity demand and booming industrialization. At the same time, coal consumption results in severe air pollution and health concerns. Improvement in emission control technologies is a key to improving air quality in coal power plants. Many scientists reported removing air pollutants individually via conventional control methods. However, controlling multiple pollutants combinedly using the latest techniques is rarely examined. Therefore, this paper overviews the current and advanced physical technologies to control multi-air pollutants synergistically, including carbon control technologies. Also, the paper aims to examine how potential air pollutants (e.g., PM 2.5 , SO 2 , NOx, CO 2 ), including mercury from the coal-fired power plants, cause environmental impacts. The data synthesis shows that coal quality is the most significant factor for increasing air emissions, regardless of power plant capacity. It is found that selecting techniques is critical for new and retrofitted plants depending on the aging of a power plant and other socio-economic factors. Considering the future perspective, this paper discusses possible pathways to transform from linear to a circular economy in a coal power plant sector, such as utilizing energy losses through energy-efficient processes and reuse of syngas. The article provides an in-depth analysis of advanced cost-effective techniques that would help to control the air pollution level. Additionally, a life cycle assessment-based decision-making framework is proposed that would assist the stakeholders in achieving net-zero emissions and offset the financial burden for air pollution control in coal-fired power plants. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s10098-022-02328-8.

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Section: Current Technologies To Manage Air Pollution In Coal Power P...mentioning

confidence: 99%

Section: Current Technologies To Manage Air Pollution In Coal Power P...mentioning

confidence: 99%

Section: Current Technologies To Manage Air Pollution In Coal Power P...mentioning

confidence: 99%

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Update on air pollution control strategies for coal-fired power plants

Asif

Chen

Wang

et al. 2022

Clean Techn Environ Policy

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“…Membrane separation technology has become an interesting alternative for separation and purification of hydrogen in the industry due to its energy-saving and excessive efficiency. Currently, the membranes for separating hydrogen from gas mixture mainly include inorganic membranes, such as palladium metal membranes, carbon molecular sieve membranes, and microporous ceramic membranes [ 6 , 7 , 8 ]. Among of them, microporous silica membranes are the most widely investigated because of their good chemical stability, large gas-permeation flux, and high selectivity.…”

Section: Introductionmentioning

confidence: 99%

Sol-Gel Processed Cobalt-Doped Methylated Silica Membranes Calcined under N2 Atmosphere: Microstructure and Hydrogen Perm-Selectivity

Wang

Yang

et al. 2021

Materials

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Methyl-modified, cobalt-doped silica (Co/MSiO2) materials were synthesized by sol-gel technique calcined in N2 atmospheres, and membranes were made thereof by coating method. The effects of Co/Si molar ratio (nCo) on the physical-chemical constructions of Co/MSiO2 materials and microstructures of Co/MSiO2 membranes were systematically investigated. The gas permeance performance and hydrothermal stability of Co/MSiO2 membranes were also tested. The results show that the cobalt element in Co/MSiO2 material calcined at 400 °C exists not only as Si–O–Co bond but also as Co3O4 and CoO crystals. The introduction of metallic cobalt and methyl can enlarge the total pore volume and average pore size of the SiO2 membrane. The activation energy (Ea) values of H2, CO2, and N2 for Co/MSiO2 membranes are less than those for MSiO2 membranes. When operating at a pressure difference of 0.2 MPa and 200 °C compared with MSiO2 membrane, the permeances of H2, CO2, and N2 for Co/MSiO2 membrane with nCo = 0.08 increased by 1.17, 0.70, and 0.83 times, respectively, and the perm-selectivities of H2/CO2 and H2/N2 increased by 27.66% and 18.53%, respectively. After being steamed and thermally regenerated, the change of H2 permeance and H2 perm-selectivities for Co/MSiO2 membrane is much smaller than those for MSiO2 membrane.

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“…Our team has designed and analyzed intensified reactor configurations for hydrogen production via the Water Gas Shift (WGS) reaction. At the labscale, we have investigated the efficacy of carbon molecular sieve (CMS)-based membrane reactors for use in combined reactive separation networks [7]. We have also developed and experimentally studied a novel hybrid membrane reactor-adsorptive reactor (MR-AR) configuration.…”

Section: Introductionmentioning

confidence: 99%

On Process Intensification through Membrane Storage Reactors

2021

Self Cite

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In this work, a dynamic, one-dimensional, first principle-based model of a novel membrane storage reactor (MSR) process is developed and simulated. The resulting governing equations are rendered dimensionless and are shown to feature two dimensionless groups that can be used to affect process performance. The novel process is shown to intensify production of a desired species through the creation of two physically distinct domains separated by a semipermeable boundary, and dynamic operation. A number of metrics are then introduced and applied to a case study on Steam Methane Reforming, for which a parametric study is carried out which establishes the superior performance of the MSR when compared to a reactor operating at steady state (SSR).

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A carbon molecular sieve membrane-based reactive separation process for pre-combustion CO2 capture

Cited by 33 publications

References 49 publications

Update on air pollution control strategies for coal-fired power plants

Update on air pollution control strategies for coal-fired power plants

Sol-Gel Processed Cobalt-Doped Methylated Silica Membranes Calcined under N2 Atmosphere: Microstructure and Hydrogen Perm-Selectivity

On Process Intensification through Membrane Storage Reactors

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