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Review
Chemistry, Applied
Xiaowei Wu et al.
Summary: This review focuses on the process engineering considerations for direct capture of CO2 from ambient air, which has received significantly less attention compared to the design of materials for direct air capture (DAC). It summarizes the minimum thermodynamic energy requirements, second law efficiencies, major unit operations and associated energy requirements, capital and operating expenses, and potential alternative process designs. The review also highlights process designs applied to more concentrated sources of CO2 that could be extended to lower concentrations to make DAC units more economically viable.
ANNUAL REVIEW OF CHEMICAL AND BIOMOLECULAR ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Xuezhong He et al.
Summary: Membrane systems for CO2 capture are gaining popularity due to their energy efficiency, smaller footprint, and lower environmental impact. This study focused on the design insight and comparison of different membranes for various post-combustion CO2 capture scenarios. It was found that Polaris and PolyActive membranes were cost-effective for capturing high-content CO2. Membrane systems are recommended for deployment in energy-intensive industries and operated at a moderate CO2 capture ratio of 70-80% for economic benefits.
CARBON CAPTURE SCIENCE & TECHNOLOGY
(2022)
Review
Polymer Science
Shigenori Fujikawa et al.
Summary: Direct air capture (DAC) is now seen as a necessary choice to reduce CO2 concentration in the atmosphere, with membrane separation being considered a potential new technology in addition to sorbent-based CO2 capture. The performance of organic polymer membranes is crucial for the development of membrane-based DAC (m-DAC), and process simulation with multistage membrane separation helps in assessing the energy requirements for m-DAC effectively.
Article
Engineering, Environmental
Tom Terlouw et al.
Summary: DACCS technology has the potential to remove significant amounts of CO2 from the atmosphere, especially in countries with low-carbon electricity supply and waste heat usage. Autonomous system layouts are a promising alternative, especially suitable for locations with high solar irradiation to avoid fossil fuel consumption. An analysis of environmental burdens other than GHG emissions shows that selecting appropriate system layouts is crucial for achieving net GHG removal.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Chemical
Klaus S. Lackner et al.
Summary: Direct air capture (DAC) has exceptional potential for carbon dioxide removal at the scale required by the Paris Agreement. Although high costs currently raise feasibility concerns, learning-by-doing may help reduce costs significantly in the future.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Energy & Fuels
Takeshi Tsuji et al.
Summary: The capture and storage of low-purity CO2 through advanced membrane technology for geological storage is environmentally acceptable and economically viable. This method reduces transport costs and ensures social acceptance by allowing CO2 production and storage in remote areas like deserts and offshore platforms.
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Noah McQueen et al.
Summary: Removing CO2 from the air using chemicals such as Direct Air Capture (DAC) requires significant energy input and comes with high costs. Different energy systems paired with DAC processes greatly impact the overall cost, with electricity prices playing a key role. Continuous power supply is essential due to the nature of the process, with various renewable and non-renewable energy sources affecting the total capture cost differently.
FRONTIERS IN CLIMATE
(2021)
Article
Environmental Studies
M. Sharmina et al.
Summary: This study highlights the necessity of significant emission reductions in critical sectors such as aviation, shipping, road freight transport, and industry to limit global warming to 1.5-2 degrees C, as technological supply-side options alone may not be sufficient to achieve rapid decarbonisation. Policy priorities include promoting affordable alternatives to air travel, enhancing connectivity between low-carbon travel modes, reducing transportation speed and demand for fossil fuels, as well as encouraging distributed manufacturing and a shift towards a circular economy. The COVID-19 pandemic provides a unique opportunity to implement lasting CO2 emissions reductions by reducing reliance on carbon removal technologies through significant demand reductions for critical sectors' activities.
Article
Environmental Sciences
Christian Breyer et al.
MITIGATION AND ADAPTATION STRATEGIES FOR GLOBAL CHANGE
(2020)
Article
Engineering, Environmental
Noah McQueen et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Electrochemistry
Lina Wang et al.
ELECTROCHEMISTRY COMMUNICATIONS
(2020)
Article
Green & Sustainable Science & Technology
Mandi Fasihi et al.
JOURNAL OF CLEANER PRODUCTION
(2019)
Review
Environmental Sciences
Vanessa Nunez-Lopez et al.
FRONTIERS IN CLIMATE
(2019)
Article
Multidisciplinary Sciences
Haibo Zhai
Article
Chemistry, Physical
David W. Keith et al.
Article
Engineering, Environmental
David S. Goldberg et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2013)
Article
Multidisciplinary Sciences
Kurt Zenz House et al.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2011)
