Engineered Mammalian Carbonic Anhydrases for CO2 Capture

Boone, Christopher D.; McKenna, Robert

doi:10.1016/b978-0-444-63258-6.00016-0

Cited by 4 publications

(1 citation statement)

References 118 publications

(112 reference statements)

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“…Extensive literature is available on immobilizing CA on various physical supports with varying degrees of success. These efforts were largely summarized in a number of recent review papers. − However, essential design and demonstration of the processes that would allow for a simple drop-in application of biocatalysts in the existing chemical absorption system, such as that designed for the MEA process, are rare in the literature. In one notable study, Reardon et al (Akermin Inc.) used a sol–gel process to encapsulate CA in an organosilica matrix that was coated on commercial stainless-steel structured packings.…”

Section: Introductionmentioning

confidence: 99%

Carbonic Anhydrase Immobilized on Textile Structured Packing Using Chitosan Entrapment for CO₂Capture

Shen

Yuan

Salmon

2022

ACS Sustainable Chem. Eng.

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Innovative carbon dioxide (CO 2 ) capture approaches are urgently needed to lower and reverse CO 2 emissions that lead to climate change. Here, we report the design, fabrication and testing of high efficiency biocatalytic textile-based gas−liquid contactors made using versatile, sustainable, and readily available polymers, cellulose, and chitosan, together with an immobilized carbonic anhydrase (CA) enzyme to accelerate CO 2 absorption into benign, low-energy, aqueous potassium carbonate (K 2 CO 3 )based solvents. This novel structured packing is able to withstand the CO 2 scrubbing environment, will be simple to scale up, and will be useful as a "drop-in" for conventional chemical absorption systems as well as offer new possibilities for direct air capture. Immobilizing CA in a thin coating on textile packing surfaces minimizes the enzyme requirement, retains enzyme in the absorber for high catalytic benefit and longevity with repeated use, and allows downstream process flexibility by preventing CA from traveling to other unit operations, for example, high temperature desorption where enzyme could become inactivated. CA immobilization on cotton fiber textile packing materials by entrapment with chitosan exhibited an activity recovery of at least 49% and activity retentions of higher than 68% after 10 repeated wash and retest cycles over 5 days and up to 41% after a 31 day incubation in 10 wt % K 2 CO 3 at 40 °C. The lightweight biocatalytic textile packing modules are sturdy and easily handled with no sharp edges or dusting issues as can accompany conventional metal packing-or particulate-immobilized enzymes. In laboratory-scale countercurrent CO 2 absorption tests at 4 L per minute total gas flow rates, CAimmobilized textile packings delivered average CO 2 absorption efficiencies of 52.3% and 81.7% for single and double-stacked packings, respectively, versus 26.6% and 46.4% for single and double-stacked no-enzyme control textile packings, and versus 3.6% for conventional glass Raschig rings filled to the equivalent single-stacked packing height. Textile packings exhibited excellent solvent distribution throughout the packing even at low liquid flow rates, maintaining uniform gas contact with the wetted solid contacting surfaces across a range of different liquid flow rates, leading to robust CO 2 capture efficiency. Biocatalytic textile packing retained 66% of the initial CO 2 capture performance after five cycles of washing, drying, ambient storage, and retesting over a period of 66 days. In a separate test with freshly made packing, 76.5% performance retention was observed after a continuous 120 h recirculation longevity test.

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Section: Introductionmentioning

confidence: 99%

Carbonic Anhydrase Immobilized on Textile Structured Packing Using Chitosan Entrapment for CO₂Capture

Shen

Yuan

Salmon

2022

ACS Sustainable Chem. Eng.

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Biomimetic Hydroxypropyl-Β-Cyclodextrin (Hβ-Cd) / Polyamide (Pa) Membranes for Co2 Separation

Wang

2022

SSRN Journal

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Immobilization of Carbonic Anhydrase on Bentonite – Chitosan Composite and Determination of its Kinetic Parameters and Co2 Removal Capacity

Parmaksız,

Tunca

2024

Preprint

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Engineered Mammalian Carbonic Anhydrases for CO2 Capture

Cited by 4 publications

References 118 publications

Carbonic Anhydrase Immobilized on Textile Structured Packing Using Chitosan Entrapment for CO₂Capture

Carbonic Anhydrase Immobilized on Textile Structured Packing Using Chitosan Entrapment for CO₂Capture

Biomimetic Hydroxypropyl-Β-Cyclodextrin (Hβ-Cd) / Polyamide (Pa) Membranes for Co2 Separation

Immobilization of Carbonic Anhydrase on Bentonite – Chitosan Composite and Determination of its Kinetic Parameters and Co2 Removal Capacity

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Engineered Mammalian Carbonic Anhydrases for CO2 Capture

Cited by 4 publications

References 118 publications

Carbonic Anhydrase Immobilized on Textile Structured Packing Using Chitosan Entrapment for CO2Capture

Carbonic Anhydrase Immobilized on Textile Structured Packing Using Chitosan Entrapment for CO2Capture

Biomimetic Hydroxypropyl-Β-Cyclodextrin (Hβ-Cd) / Polyamide (Pa) Membranes for Co2 Separation

Immobilization of Carbonic Anhydrase on Bentonite – Chitosan Composite and Determination of its Kinetic Parameters and Co2 Removal Capacity

Contact Info

Product

Resources

About

Carbonic Anhydrase Immobilized on Textile Structured Packing Using Chitosan Entrapment for CO₂Capture

Carbonic Anhydrase Immobilized on Textile Structured Packing Using Chitosan Entrapment for CO₂Capture