Development of an Organosilica Coating Containing Carbonic Anhydrase for Applications in CO2 Capture

Bucholz, Tracy L.; Hulvey, Matthew K.; Reardon, John; Rambo, Brett M.; Pulvirenti, Dawn C.; Weber, Luke E.; Zaks, A. S.

doi:10.1016/b978-0-444-63259-3.00004-5

Cited by 3 publications

(2 citation statements)

References 78 publications

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“…A porous organosilica coating containing CA to separate CO 2 from a flowing gas stream has been tested [62]. This coating was applied to ceramic random packing and placed in a countercurrent absorber column, where it demonstrated a high rate enhancement for 400 days at 45°C and a total turnover number of ~48 million moles CO 2 /mole enzyme.…”

Section: Enzymatically Catalyzed Absorbent Systemsmentioning

confidence: 99%

Emerging New Types of Absorbents for Postcombustion Carbon Capture

Zhuang¹,

Clements²,

Li³

2017

Recent Advances in Carbon Capture and Storage

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Carbon capture is the most probable technology in combating anthropogenic increase of CO 2 in the atmosphere. Works on developing emerging absorbents for improving carbon capture performance and reducing process energy consumption are actively going on. The most worked-on emerging absorbents, including liquid-liquid biphasic, liquid-solid biphasic, enzymatic, and encapsulated absorbents, already show encouraging results in improved energy efficiency, enhanced CO 2 absorption kinetics, increased cyclic CO 2 loading, or reduced regeneration temperature. In this chapter, the latest research and development progress of these emerging absorbents are reviewed along with the future directions in moving these technologies to higher-technology readiness levels.

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Section: Enzymatically Catalyzed Absorbent Systemsmentioning

confidence: 99%

Emerging New Types of Absorbents for Postcombustion Carbon Capture

Zhuang¹,

Clements²,

Li³

2017

Recent Advances in Carbon Capture and Storage

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show abstract

“…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. A field test with these packings exhibited a 6- to 7-fold adsorption rate enhancement for a carbonate-based solvent at 40 °C with an average CO 2 capture efficiency of 80% on coal flue gas.…”

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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Durable and Versatile Immobilized Carbonic Anhydrase on Textile Structured Packing for CO2 Capture

2022

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High-performance carbon dioxide (CO2)-capture technologies with low environmental impact are necessary to combat the current climate change crisis. Durable and versatile “drop-in-ready” textile structured packings with covalently immobilized carbonic anhydrase (CA) were created as efficient, easy to handle catalysts for CO2 absorption in benign solvents. The hydrophilic textile structure itself contributed high surface area and superior liquid transport properties to promote gas-liquid reactions that were further enhanced by the presence of CA, leading to excellent CO2 absorption efficiencies in lab-scale tests. Mechanistic investigations revealed that CO2 capture efficiency depended primarily on immobilized enzymes at or near the surface, whereas polymer entrapped enzymes were more protected from external stressors than those exposed at the surface, providing strategies to optimize performance and durability. Textile packing with covalently attached enzyme aggregates retained 100% of the initial 66.7% CO2 capture efficiency over 71-day longevity testing and retained 85% of the initial capture efficiency after 1-year of ambient dry storage. Subsequent stable performance in a 500 h continuous liquid flow scrubber test emphasized the material robustness. Biocatalytic textile packings performed well with different desirable solvents and across wide CO2 concentration ranges that are critical for CO2 capture from coal and natural gas-fired power plants, from natural gas and biogas for fuel upgrading, and directly from air.

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Development of an Organosilica Coating Containing Carbonic Anhydrase for Applications in CO2 Capture

Cited by 3 publications

References 78 publications

Emerging New Types of Absorbents for Postcombustion Carbon Capture

Emerging New Types of Absorbents for Postcombustion Carbon Capture

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

Durable and Versatile Immobilized Carbonic Anhydrase on Textile Structured Packing for CO2 Capture

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Development of an Organosilica Coating Containing Carbonic Anhydrase for Applications in CO2 Capture

Cited by 3 publications

References 78 publications

Emerging New Types of Absorbents for Postcombustion Carbon Capture

Emerging New Types of Absorbents for Postcombustion Carbon Capture

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

Durable and Versatile Immobilized Carbonic Anhydrase on Textile Structured Packing for CO2 Capture

Contact Info

Product

Resources

About

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