Effects of Minor SO<sub>2</sub> on the Transport Properties of Fixed Carrier Membranes for CO<sub>2</sub> Capture

Li, Shichun; Wang, Zhi; He, Wei; Zhang, Chenxin; Wu, Hongyu; Wang, Jixiao; Wang, Shichang

doi:10.1021/ie404063r

Cited by 30 publications

(17 citation statements)

References 55 publications

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“…Facilitated‐transport membranes (FTMs) such as liquid membranes, ion‐exchange membranes, and fixed‐carrier membranes have proven to be highly selective for CO 2 ; however, they are subject to poisoning by trace amounts of acid gases, such as NO x and SO x , present in the flue and suffer from long‐term stability . Among various commercially available membrane types, hollow‐fiber membranes provide the highest surface‐to‐volume ratio, optimum geometry for high production rates, and provide more compact modules than flat‐sheet or spiral‐wound units .…”

Section: Co2‐capture Options: Challenges and Opportunitiesmentioning

confidence: 99%

Carbon Capture and Utilization Update

et al. 2017

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In recent years, carbon capture and utilization (CCU) has been proposed as a potential technological solution to the problems of greenhouse‐gas emissions and the ever‐growing energy demand. To combat climate change and ocean acidification as a result of anthropogenic CO2 emissions, efforts have already been put forth to capture and sequester CO2 from large point sources, especially power plants; however, the utilization of CO2 as a feedstock to make valuable chemicals, materials, and transportation fuels is potentially more desirable and provides a better and long‐term solution than sequestration. The products of CO2 utilization can supplement or replace chemical feedstocks in the fine chemicals, pharmaceutical, and polymer industries. In this review, we first provide an overview of the current status of CO2‐capture technologies and their associated challenges and opportunities with respect to efficiency and economy followed by an overview of various carbon‐utilization approaches. The current status of combined CO2 capture and utilization, as a novel efficient and cost‐effective approach, is also briefly discussed. We summarize the main challenges associated with the design, development, and large‐scale deployment of CO2 capture and utilization processes to provide a perspective and roadmap for the development of new technologies and opportunities to accelerate their scale‐up in the near future.

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Section: Co2‐capture Options: Challenges and Opportunitiesmentioning

confidence: 99%

Carbon Capture and Utilization Update

et al. 2017

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“…These contaminants could possibly affect the performance of facilitated transport membranes via degrading carriers, competitive sorption with CO 2 or competitive reaction with CO 2 . Therefore, effects of various potential impurities on facilitated transport membranes containing amino groups and carbonate groups have been widely investigated by several research groups [284,291,[305][306][307][308]. According to these studies, there was a negative effect of minor contaminants on membrane performances observed.…”

Section: Facilitated Transport Membranesmentioning

confidence: 99%

“…Meanwhile, the performance could gradually recover after contaminants removal from feed gas. Very recently, our group intensively investigated the effects of representative acidic contaminant SO 2 on gas transport properties of amino groups containing facilitated transport membranes via experimental and modeling study [307]. These investigations all suggested that the developed facilitated transport membranes showed the good tolerance against potential contaminants in real gas streams.…”

Section: Facilitated Transport Membranesmentioning

confidence: 99%

Recent developments in membranes for efficient hydrogen purification

Wang

Qiao

et al. 2015

Journal of Membrane Science

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262

106

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“…With the presence of SO 2 in the feed gas, SO 2 can preferably react with carriers and hinder the permeation of CO 2 in the facilitated transport membrane [21,22]. Possible amine degradation and competitive reactions raise the concerns on the amine-based facilitated transport membranes and sorbents for use in the real flue gas [9,[23][24][25].…”

Section: Introductionmentioning

confidence: 99%

“…On the contrary, consistent stable results were demonstrated for amine-containing facilitated transport membranes. Wang et al studied the effect of SO 2 on the transport performance of a fixed-site carrier membrane with tertiary amino groups [21]. A noticeable CO 2 permeance reduction was observed based on their results.…”

Section: Introductionmentioning

confidence: 99%

SO2 interference on separation performance of amine-containing facilitated transport membranes for CO2 capture from flue gas

Sun

Dutta

et al. 2017

Journal of Membrane Science

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Post-combustion carbon capture using membranes is a key approach to control CO 2 emissions from power plants using fossil fuels. The minor contaminants, such as SO 2 and O 2 , may influence the long-term membrane performance. With the presence of SO 2 in the feed gas, SO 2 could preferably react with amine carriers and hinder the permeation of CO 2 in the amine-containing facilitated transport membranes. Possible amine degradation and competitive reactions would reduce membrane performance with real flue gas. With SO 2 concentrations of 0.7-5 ppm, two amine-containing facilitated transport membranes were tested at 57 and 102°C, respectively. Unstable membrane performance was observed at 102°C for the membrane containing Lupamin® as fixed-site carrier and potassium glycinate (K-Gly) as mobile carrier in the presence of SO 2. On the contrary, two membranes containing polyvinylamine (PVAm) as fixed-site carrier and amino acid salts as mobile carriers showed stable separation performance in the presence of 1-3 ppm SO 2 at 57°C. Therefore, the operating temperature plays a significant role in the membrane stabilities in the presence of SO 2. In addition, the infrared (IR) spectra of the membrane components exposed to SO 2 with respect to exposure time were collected. It was found that the amines reacted with SO 2 to form sulfite products irreversibly at 102°C. The spectral results were consistent with the observed membrane separation performance. The stable membrane performances of the facilitated transport membranes at 57°C with SO 2 at ppm levels indicate the applicability of the developed amine-containing membranes for use in CO 2 capture from real flue gas.

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Effects of Minor SO₂ on the Transport Properties of Fixed Carrier Membranes for CO₂ Capture

Cited by 30 publications

References 55 publications

Carbon Capture and Utilization Update

Carbon Capture and Utilization Update

Recent developments in membranes for efficient hydrogen purification

SO2 interference on separation performance of amine-containing facilitated transport membranes for CO2 capture from flue gas

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Effects of Minor SO2 on the Transport Properties of Fixed Carrier Membranes for CO2 Capture

Cited by 30 publications

References 55 publications

Carbon Capture and Utilization Update

Carbon Capture and Utilization Update

Recent developments in membranes for efficient hydrogen purification

SO2 interference on separation performance of amine-containing facilitated transport membranes for CO2 capture from flue gas

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Product

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Effects of Minor SO₂ on the Transport Properties of Fixed Carrier Membranes for CO₂ Capture