Download or read book Development of Green CO2 Capture Technologies Using Immobilized Carbonic Anhydrase Enzyme written by Hannaneh Rasouli Kenari and published by . This book was released on 2022 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anthropogenic activities have significantly enhanced the amount of greenhouse gases (GHGs) in the atmosphere and are a major contributor to global warming. Carbon dioxide (CO2) is a primary greenhouse gas that contributes to climate change. Various technologies are being explored across the world to tackle CO2 capture and sequestration. Despite their efficiency, amine-based solutions have negative environmental impact and the process is energy intensive. CO2 absorption using carbonic anhydrase (CA) enzyme as catalyst (free insolution or immobilized) is a promising technology which offers high selectivity and efficiency in CO2 capture processes by using nontoxic and more energy efficient solvents. CA is a well-known biocatalyst endowed with an extraordinary turnover number (TON), which offers to it a very high capacity to boost CO2 hydration. CA immobilization on solid surfaces enhances the enzyme stability, and reusability and provides the ability for easy separation of the reaction products without biocatalyst contamination. In this context, the present thesis focuses on the investigation of CO2 absorption process using immobilized CA in different bioreactors. More specifically, the main objectives are: i) developing an enhanced enzymatic process with immobilized CA enzyme in a packed-bedcolumn bioreactor, ii) studying the CO2 absorption in membrane contactor with immobilized CA enzyme on membrane surface, and iii) proposing a novel hybrid enzymatic process in an intensified flat sheet membrane contactor for improving CO2 absorption via immobilized CA enzyme on both membrane and magnetic nanoparticles (MNPs). An improved CA immobilization technique was developed in this work using two steps: (i) co-deposition of Polydopamine (PDA)/Polyethyleneimine (PEI) with amino functional groups for amine-functionalization of surfaces and (ii) covalent enzyme immobilization on the aminated surfaces using glutaraldehyde. The proposed approach is appealing because ofits simplicity, abundant amine functionalities of PEI, and great adhesion capacity of PDA during surface functionalization process, as well as the stability and reusability of immobilized enzyme via covalent bonding. A hybrid enzymatic process with CA enzyme immobilized on packing surface and MNPs dispersed in the liquid absorbent (water) was developed in a gas-liquid packed-bed column bioreactor. CA was immobilized on amine functionalized surface of MNPs and packings via covalent attachments. Even after 40 days of storage in buffer solution, the immobilized CA on packing and MNPs showed remarkable stability, retaining 80% and 84.7% of its original activity, respectively. Since the enzyme immobilized on MNPs operates as a free solution-phase enzyme, the CO2 hydration process improved significantly, specially when the diffusion limitation in the enzymatic process with immobilized CA enzyme on the packing surface was significant. CA enzyme immobilized on polypropylene (PP) flat sheet membrane surface via co-deposition of PDA/PEI through covalent bonding method showed the highest activity and preserved most of its initial activity after 40 days (82.3%). A CO2 absorption flux of 0.29×10-3 mol/m2s was attained by integrating the biocatalytic membrane into a flat sheet membrane contactor (FSMC) using water as absorbent. Stable CO2 absorption rate was obtained during a longer time operation (6 hours), illustrating its potential for industrial applications. Mass transfer resistance in partially liquid-filled membrane pores was shown to be reduced by the catalyzed CO2 hydration in these pores in the presence of immobilized CA. CO2 absorption in flat sheet membrane contactor with immobilized CA on membrane surface was intensified by the incorporation of immobilized CA on the surface of MNPs dispersed in the liquid phase. CO2 absorption process was improved due to the presence of biocatalytic MNPs, which act as a free solution-phase enzyme. CA was covalently immobilized on amine-functionalized MNPs surface. The proposed innovative hybrid enzymatic process in the intensified membrane contactor improved the CO2 absorption by maximizing the utilization of CA’s large TON, specially at lower CA loadings on the biocatalytic membrane. Immobilized membrane and MNPs demonstrated their reusability and retained their initial activities even after 10 absorption cycles. The intensified membrane contactor also displayed a stable operation for several hours. In conclusion, the results achieved in our work illustrate that CO2 capture using immobilized CA can offer a cost-effective, green, and environmentally friendly strategy, representing an attracting alternative to customary technologies using amine-based absorbents. With the growing environmental crisis, enzymatic CO2 capture technologies are becoming more important, prompting more attempts to implement them on industrial scales.
Download or read book Advances in Carbon Capture and Utilization written by Deepak Pant and published by Springer Nature. This book was released on 2021-07-26 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the recent trends in carbon management and up-to-date information on different carbon management strategies that lead to manage increasing concentration of atmospheric carbon dioxide. The growing evidence of climate change resulting from the continued increase of atmospheric carbon dioxide concentration has made it a high profile political–social and trade issue. The mean global average earth temperature rose by 0.6± 2°C during the second half of the century with the rate of 0.17°C/decade. As per GISS data in the year of 2017, it rose 0.9°C (1.62 °F) above the 1951-1980 mean global temperature. Recently World Meteorological Organization analyzes the past record temperature and found the past 10 years were the warmest years about 1.1°C above preindustrial level. Over the past decade, carbon management by various techniques has to come to fore as a way to manage carbon dioxide emissions contributing to climate change. The proposed book addresses the need for an understanding of sustainable carbon dioxide management technologies mainly focused on (a) minimizing carbon dioxide emission from sources; (b) maximizing environmentally sound recuse, reduce and recycling; (c)emerging technology toward carbon dioxide mitigation and d) converting carbon dioxide into valuable products form sustainable use. Other books related to carbon management attempt to cover the carbon capture and sequestration, carbon mineralization, utilization and storage but the topic of CO2 management strategies is not discussed in detail for sustainable development. Furthermore, this book also covers all physical, chemical and biological process for long-term capture, removal and sequestration of carbon dioxide from the atmosphere for sustainable management which is not described in other carbon management books. In order to meet CO2 emissions reduction target, a range of technological approaches, including development of clean fuels and clean coal technologies, adopting cleaner and more energy efficiency and conservation, developing renewable energy and implementing CCS technologies, will also be considered for sustainable future.
Download or read book Emerging Carbon Capture Technologies written by Mohammad Khalid and published by Elsevier. This book was released on 2022-04-22 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon dioxide (CO2) capture and conversion to value added products, such as chemicals, polymers, and carbon-based fuels represents a promising approach to transform a potential threat to the environment into a value-added product for long term sustainability. Emerging Carbon Capture Technologies: Towards a Sustainable Future provides a multidisciplinary view of the research that is being carried out in this field, covering materials and processes for CO2 capture and utilization and including a broad discussion of the impact of novel technologies in carbon capture on the energy landscape, society and climate. Of interest to students, researchers and professionals in industries related to greenhouse gas mitigation, post-combustion CO2 capture processes, coal-fired power plants, environmental sustainability, green solvents, green technologies, and the utilization of clean energy for environmental protection, this book covers both the experimental and theoretical aspects of novel materials and process development providing a holistic approach toward a sustainable energy future. Includes a wide range of processes and their applications Covers the experimental and theoretical aspects of novel materials and process development Includes techno-economics analysis, regulation, policies and future prospects
Download or read book Advances in Carbon Capture written by Mohammad Reza Rahimpour and published by Woodhead Publishing. This book was released on 2020-08-04 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Carbon Capture reviews major implementations of CO2 capture, including absorption, adsorption, permeation and biological techniques. For each approach, key benefits and drawbacks of separation methods and technologies, perspectives on CO2 reuse and conversion, and pathways for future CO2 capture research are explored in depth. The work presents a comprehensive comparison of capture technologies. In addition, the alternatives for CO2 separation from various feeds are investigated based on process economics, flexibility, industrial aspects, purification level and environmental viewpoints. Explores key CO2 separation and compare technologies in terms of provable advantages and limitations Analyzes all critical CO2 capture methods in tandem with related technologies Introduces a panorama of various applications of CO2 capture
Download or read book CO2 Capture Using Immobilized Carbonic Anhydrase in Robinson Mahoney Basket and Packed Absorption Column Reactors written by Olivier Lacroix and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Green Carbon Dioxide written by Gabriele Centi and published by John Wiley & Sons. This book was released on 2014-01-17 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: PROMISING NEW APPROACHES TO RECYCLE CARBON DIOXIDE AND REDUCE EMISSIONS With this book as their guide, readers will learn a variety of new approaches and methods to recycle and reuse carbon dioxide (CO2) in order to produce green fuels and chemicals and, at the same time, minimize CO2 emissions. The authors demonstrate how to convert CO2 into a broad range of essential products by using alternative green energy sources, such as solar, wind, and hydro-power as well as sustainable energy sources. Readers will discover that CO2 can be a driving force for the sustainable future of both the chemical industry and the energy and fuels industry. Green Carbon Dioxide features a team of expert authors, offering perspectives on the latest breakthroughs in CO2 recycling from Asia, Europe, and North America. The book begins with an introduction to the production of CO2-based fuels and chemicals. Next, it covers such topics as: Transformation of CO2 to useable products through free-radical-induced reactions Hydrogenation of CO2 to liquid fuels Direct synthesis of organic carbonates from CO2 and alcohols using heterogeneous oxide catalysts Electrocatalytic reduction of CO2 in methanol medium Fuel production from photocatalytic reduction of CO2 with water using TiO2-based nanocomposites Use of CO2 in enhanced oil recovery and carbon capture and sequestration More than 1,000 references enable readers to explore individual topics in greater depth. Green Carbon Dioxide offers engineers, chemists, and managers in the chemical and energy and fuel industries a remarkable new perspective, demonstrating how CO2 can play a significant role in the development of a sustainable Earth.
Download or read book Carbon Capture and Storage written by Amitava Bandyopadhyay and published by CRC Press. This book was released on 2014-04-10 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon capture and storage (CCS) refers to a set of technologies and methods for the mitigation, remediation, and storage of industrial CO2 emissions, the most imminent and virile of the greenhouse gases (GHG). The book addresses the methods and technologies currently being applied, developed, and most in need of further research. The book: • Discusses methods of carbon capture in industrial settings • Presents biological and geological approaches to carbon sequestration • Introduces ionic liquids as a method of carbon capture • Introduces new approaches to capturing CO2 from ambient air
Download or read book Carbon Dioxide Utilization to Sustainable Energy and Fuels written by Inamuddin and published by Springer Nature. This book was released on 2021-11-30 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book provides an in-depth overview of carbon dioxide (CO2) transformations to sustainable power technologies. It also discusses the wide scope of issues in engineering avenues, key designs, device fabrication, characterizations, various types of conversions and related topics. It includes studies focusing on the applications in catalysis, energy conversion and conversion technologies, etc. This is a unique reference guide, and one of the detailed works is on this technology. The book is the result of commitments by leading researchers from various backgrounds and expertise. The book is well structured and is an essential resource for scientists, undergraduate, postgraduate students, faculty, R&D professionals, energy chemists and industrial experts.
Download or read book Better Enzymes for Carbon Capture written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: IMPACCT Project: Codexis is developing new and efficient forms of enzymes known as carbonic anhydrases to absorb CO2 more rapidly and under challenging conditions found in the gas exhaust of coal-fired power plants. Carbonic anhydrases are common and are among the fastest enzymes, but they are not robust enough to withstand the harsh environment found in the power plant exhaust steams. In this project, Codexis will be using proprietary technology to improve the enzymes' ability to withstand high temperatures and large swings in chemical composition. The project aims to develop a carbon-capture process that uses less energy and less equipment than existing approaches. This would reduce the cost of retrofitting today's coal-fired power plants.
Download or read book Recent Advances in Carbon Capture and Storage written by Yongseung Yun and published by BoD – Books on Demand. This book was released on 2017-03-08 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon capture and storage (CCS) has been considered as a practical way in sequestering the huge anthropogenic CO2 amount with a reasonable cost until a more pragmatic solution appears. The CCS can work as a bridge before fulfilling the no-CO2 era of the future by applying to large-scale CO2 emitting facilities. But CCS appears to lose some passion by the lack of progress in technical developments and in commercial success stories other than EOR. This is the time to go back to basics, starting from finding a solution in small steps. The CCS technology desperately needs far newer ideas and breakthroughs that can overcome earlier attempts through improving, modifying, and switching the known principles. This book tries to give some insight into developing an urgently needed technical breakthrough through the recent advances in CCS research, in addition to the available small steps like soil carbon sequestration. This book provides the fundamental and practical information for researchers and graduate students who want to review the current technical status and to bring in new ideas to the conventional CCS technologies.
Download or read book Advances and Technology Development in Greenhouse Gases Emission Capture and Conversion written by Mohammad Reza Rahimpour and published by Elsevier. This book was released on 2024-07-26 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances and Technology Development in Greenhouse Gases: Emission, Capture and Conversion is a comprehensive seven-volume set of books that discusses the composition and properties of greenhouse gases, and introduces different sources of greenhouse gases emission and the relation between greenhouse gases and global warming. The comprehensive and detailed presentation of common technologies as well as novel research related to all aspects of greenhouse gases makes this work an indispensable encyclopedic resource for researchers in academia and industry.Volume 4 titled Carbon Capture Technologies is devoted to efficient technologies utilized for separation that are the heart of controlling carbon-made greenhouse gases (GHGs). The book starts with a review of carbon capture concepts with a focus on energy penalties as well as the operating pilots and plants followed by a meticulous investigation of different classes of capture methods. Section 2 surveys the absorption process including amines, physical absorbents, alkaline solvents, ionic liquids and deep eutectic solvents, nanoparticle-enhanced solvents, as well as a number of novel materials and structures, that are employed to eliminate GHGs utilizing absorption. Section 3 addresses adsorption-based strategies with a focus on the role of different solid adsorbents, introduces technologies that benefit from membranes, and considers different materials utilized in the fabrication of membranes. The final section deals with other as state-of-the-art alternatives in carbon capture. Moreover, each section reviews the economic assessments and environmental challenges. Introduces carbon capture concepts and challenges Describes various absorption and adsorption processes for carbon capture Includes various membrane technologies for carbon capture
Download or read book Carbon Capture and Storage written by Rao Y. Surampalli and published by . This book was released on 2014-12 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CO2 Conversion and Utilization written by Chunshan Song and published by ACS Symposium. This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the chemistry and processes for conversion and utilization of carbon dioxide. Topics include CO 2 utilization, its conversion to industrial chemicals and fuels, its coversion via synthesis gas, and new catalysts and chemical processes for conversion.
Download or read book Climate Change and Green Chemistry of CO2 Sequestration written by Malti Goel and published by Springer Nature. This book was released on 2021-05-10 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book comprises state-of-the-art scientific reviews on carbon management strategies in response to climate change. It provides in-depth information on topics relating to recent advances in carbon capture technology and its reuse in value added products. It features contributions of leading scientists and technocrats on topics including climate change and carbon sequestration, lowering carbon footprint CO2 capture, low carbon imperatives in oil industry, CO2 as refrigerant in cold-chain application, carbonic anhydrase-mediated carbon sequestration and utilization, chemical looping combustion with Indian coal, CO2 conversion to chemicals, algae based biofuels, and carbon capture patent landscaping analysis. The contents of this book will be helpful for research scholars, post-graduate students, industry, agricultural scientists and policy makers/planners.
Download or read book Directed Evolution of an Ultrastable Carbonic Anhydrase for Highly Efficient Carbon Capture from Flue Gas written by and published by . This book was released on 2014 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbonic anhydrase (CA) is one of nature's fastest enzymes and can dramatically improve the economics of carbon capture under demanding environments such as coal-fired power plants. The use of CA to accelerate carbon capture is limited by the enzyme's sensitivity to the harsh process conditions. Using directed evolution, the properties of a [beta]-class CA from Desulfovibrio vulgaris were dramatically enhanced. Iterative rounds of library design, library generation, and high-throughput screening identified highly stable CA variants that tolerate temperatures of up to 107 °C in the presence of 4.2 M alkaline amine solvent at pH>10.0. This increase in thermostability and alkali tolerance translates to a 4,000,000-fold improvement over the natural enzyme. In conclusion, at pilot scale, the evolved catalyst enhanced the rate of CO2 absorption 25-fold compared with the noncatalyzed reaction.
Download or read book Industrial Biocatalysis written by Peter Grunwald and published by CRC Press. This book was released on 2014-12-11 with total page 1201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biocatalysis has become an essential tool in the chemical industry and is the core of industrial biotechnology, also known as white biotechnology, making use of biocatalysts in terms of enzymes or whole cells in chemical processes as an alternative to chemical catalysts. This shift can be seen in the many areas of daily life where biocatalysts-with
Download or read book Enzymes in Food Biotechnology written by Mohammed Kuddus and published by Academic Press. This book was released on 2018-08-23 with total page 909 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enzymes in Food Biotechnology: Production, Applications, and Future Prospects presents a comprehensive review of enzyme research and the potential impact of enzymes on the food sector. This valuable reference brings together novel sources and technologies regarding enzymes in food production, food processing, food preservation, food engineering and food biotechnology that are useful for researchers, professionals and students. Discussions include the process of immobilization, thermal and operational stability, increased product specificity and specific activity, enzyme engineering, implementation of high-throughput techniques, screening to relatively unexplored environments, and the development of more efficient enzymes. Explores recent scientific research to innovate novel, global ideas for new foods and enzyme engineering Provides fundamental and advanced information on enzyme research for use in food biotechnology, including microbial, plant and animal enzymes Includes recent cutting-edge research on the pharmaceutical uses of enzymes in the food industry
