Immobilization of carbonic anhydrase for CO2 capture and its industrial implementation: A review

Molina-Fernández, Cristhian; Luis, Patricia

doi:10.1016/j.jcou.2021.101475

Cited by 79 publications

(42 citation statements)

References 163 publications

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“…Further, the cost of the enzyme itself is expected to reduce significantly if produced on a large scale by using genetically modified bacteria, lowering the requirement for extensive purification, and increasing the production volume and fermentation yield. 34 The price of industrially produced crude isolated CA can be reduced by orders of magnitude to $0.3−3.0/g. 35,36 Under these conditions, the cost of CA−GA beads is thus projected to fall, possibly to around $0.02 per tonne of dry biomass.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…However, a greater number of lifecycles can be possible, particularly if a CA enzyme can be developed that is more resistant to seawater and other impurities (e.g., if a CA from a marine microalga could be produced at scale); or if a freshwater algae species is used. Further, the cost of the enzyme itself is expected to reduce significantly if produced on a large scale by using genetically modified bacteria, lowering the requirement for extensive purification, and increasing the production volume and fermentation yield . The price of industrially produced crude isolated CA can be reduced by orders of magnitude to $0.3–3.0/g. , Under these conditions, the cost of CA–GA beads is thus projected to fall, possibly to around $0.02 per tonne of dry biomass.…”

Section: Results and Discussionmentioning

confidence: 99%

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Direct Air Capture of CO₂ by Microalgae with Buoyant Beads Encapsulating Carbonic Anhydrase

Kentish

Martin

2021

ACS Sustainable Chem. Eng.

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Microalgae cultures have promise as a CO2 sink for atmospheric carbon and as a sustainable source of food and chemical feedstocks. However, large-scale microalgae cultivation is currently limited by the need to provide carbon dioxide from point sources, as the diffusion of atmospheric CO2 is too slow. Carbonic anhydrase (CA) is an effective enzyme to facilitate the dissolution of atmospheric CO2 that could be used to enhance the photosynthetic uptake of this greenhouse gas. Here we investigate a means of retaining CA at the surface of algae ponds to facilitate direct air capture by cross-linking CA with glutaraldehyde (GA) before encapsulation into buoyant calcium alginate beads. Coomassie Blue dyeing and Wilbur–Anderson assays confirmed the successful bonding of CA to the beads. Microscopic images showed the paraffin-embedded alginate framework. The CA–GA beads retain virtually all hydrase activity throughout 10 assay cycles. Compared with a natural growth rate of 22.7 ± 0.5 mg L–1 day–1, free CA and CA–GA beads increased the productivity of Nannochloropsis salina to 37 ± 3 mg L–1 day–1 and 40 ± 1 mg L–1 day–1, respectively. The CA–GA beads further provided a stable growth enhancement for three rounds of microalgae cultivation, confirming that these buoyant beads can be readily recovered and re-used, which is promising for industrial biomass production.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

Direct Air Capture of CO₂ by Microalgae with Buoyant Beads Encapsulating Carbonic Anhydrase

Kentish

Martin

2021

ACS Sustainable Chem. Eng.

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“…Molina‐Fernandez et al. recently reviewed further strategies to immobilize CA in surfaces for industrial implementation [54] . Another approach exploited is to use the CA or the biomimetic material directly suspended in the capturing solution.…”

Section: Co2 Source: Capture and Delivery Technologiesmentioning

confidence: 99%

“…Molina-Fernandez et al recently reviewed further strategies to immobilize CA in surfaces for industrial implementation. [54] Another approach exploited is to use the CA or the biomimetic material directly suspended in the capturing solution. Sivanesan et al evaluated a series of Zn-coordinated metal complexes in a tertiary amine medium by calculating the rate constant of the CO 2 hydration in each case scenario for its implementation in CO 2 capture from industrial gas waste.…”

Section: Catalytic Co 2 Capture: Improving Capture Ratesmentioning

confidence: 99%

A State‐of‐the‐Art Update on Integrated CO₂ Capture and Electrochemical Conversion Systems

et al. 2022

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To valorize waste CO2, capturing and utilizing it to produce chemical building blocks is currently receiving a lot of attention. In this respect, amine and alkali base solutions have shown to be efficient CO2 capturing solutions and electrochemical CO2 conversion is a promising technology to convert CO2 and, as such, reduce greenhouse gas emissions. However, to date, CO2 capture and utilization (CCU) technologies have been investigated almost exclusively as separate processes. This has the disadvantage that CO2 has to be desorbed and compressed from the capture solution before sending it to the CO2 electrolyzer, seriously increasing the capital and operational costs of the overall technology. To improve the valorization potential of the CCU technologies, integrating both technologies by directly utilizing the capture solution as an electrolyte for the electrochemical CO2 reduction (eCO2R) is a highly promising approach. This technology is however limited by low Faradaic efficiencies (FE) and partial current densities that can be achieved with these solutions. The main reason for this is the slow CO2 release rate at the catalytic interphase. Nevertheless, in recent years, in light of tackling these challenges, several studies successfully managed to decrease the costs of the CO2 capturing step and to electrochemically convert more efficiently the CO2 capture solutions. Herein, we review the status of the integrated CO2 capture and electrochemical conversion technology, discussing the recent developments and advances both in the field of CO2 capture and eCO2R.

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“…Carbon sequestration is a strategy that governments and oil corporations are exploring to reduce CO 2 emissions. The details of these processes and their associated challenges have been reported previously [9–23] . For reuse, recycling, and removal purposes, several advanced materials have been developed.…”

Section: Introductionmentioning

confidence: 99%

A Review on SAPO‐34 Zeolite Materials for CO₂ Capture and Conversion

Usman

Ghanem

Shah

et al. 2022

The Chemical Record

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Among several known zeolites, silicoaluminophosphate (SAPO)‐34 zeolite exhibits a distinct chemical structure, unique pore size distribution, and chemical, thermal, and ion exchange capabilities, which have recently attracted considerable research attention. Global carbon dioxide (CO2) emissions are a serious environmental issue. Current atmospheric CO2 level exceeds 414 parts per million (ppm), which greatly influences humans, fauna, flora, and the ecosystem as a whole. Zeolites play a vital role in CO2 removal, recycling, and utilization. This review summarizes the properties of the SAPO‐34 zeolite and its role in CO2 capture and separation from air and natural gas. In addition, due to their high thermal stability and catalytic nature, CO2 conversions into valuable products over single metal, bi‐metallic, and tri‐metallic catalysts and their oxides supported on SAPO‐34 were also summarized. Considering these accomplishments, substantial problems related to SAPO‐34 are discussed, and future recommendations are offered in detail to predict how SAPO‐34 could be employed for greenhouse gas mitigation.

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Immobilization of carbonic anhydrase for CO2 capture and its industrial implementation: A review

Cited by 79 publications

References 163 publications

Direct Air Capture of CO₂ by Microalgae with Buoyant Beads Encapsulating Carbonic Anhydrase

Direct Air Capture of CO₂ by Microalgae with Buoyant Beads Encapsulating Carbonic Anhydrase

A State‐of‐the‐Art Update on Integrated CO₂ Capture and Electrochemical Conversion Systems

A Review on SAPO‐34 Zeolite Materials for CO₂ Capture and Conversion

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Immobilization of carbonic anhydrase for CO2 capture and its industrial implementation: A review

Cited by 79 publications

References 163 publications

Direct Air Capture of CO2 by Microalgae with Buoyant Beads Encapsulating Carbonic Anhydrase

Direct Air Capture of CO2 by Microalgae with Buoyant Beads Encapsulating Carbonic Anhydrase

A State‐of‐the‐Art Update on Integrated CO2 Capture and Electrochemical Conversion Systems

A Review on SAPO‐34 Zeolite Materials for CO2 Capture and Conversion

Contact Info

Product

Resources

About

Direct Air Capture of CO₂ by Microalgae with Buoyant Beads Encapsulating Carbonic Anhydrase

Direct Air Capture of CO₂ by Microalgae with Buoyant Beads Encapsulating Carbonic Anhydrase

A State‐of‐the‐Art Update on Integrated CO₂ Capture and Electrochemical Conversion Systems

A Review on SAPO‐34 Zeolite Materials for CO₂ Capture and Conversion