air CO2 capture Articles

  • Exergy analysis of the solar thermochemical cycle for capturing CO2 from air

    This paper presents exergy analysis of the novel solar thermochemical cycle for CO2 capture from ambient air. The exergy balance, the degree of the thermodynamic perfection, the influence coefficient and the exergy efficiency are determined for every element of the system. The proposed system has rather low exergy efficiency of 4.8%, mainly owing to the primary purpose of this system to capture ...


    By Inderscience Publishers

  • Climate Strategy with Co2 Capture from the Air

    Abstract It is physically possible to capture CO2 directly from the air and immobilize it in geological structures. Air capture differs from conventional mitigation in three key aspects. First, it removes emissions from any part of the economy with equal ease or difficulty, so its cost provides an absolute cap on the cost of mitigation. Second, it permits reduction in concentrations faster ...


    By Springer-Verlag GmbH

  • CO2 Capture from Ambient Air by Crystallization with a Guanidine Sorbent

    Carbon capture and storage is an important strategy for stabilizing the increasing concentration of atmospheric CO2 and the global temperature. A possible approach toward reversing this trend and decreasing the atmospheric CO2 concentration is to remove the CO2 directly from air (direct air capture). Herein we report a simple aqueous guanidine sorbent that captures ...


    By SusChem

  • CO2 removal can lower costs of climate protection

    “Carbon dioxide removal from the atmosphere allows to separate emissions control from the time and location of the actual emissions. This flexibility can be important for climate protection,” says lead-author Elmar Kriegler. “You don’t have to prevent emissions in every factory or truck, but could for instance plant grasses that suck CO2out of the air to grow – and ...

  • Commercial boost for firms that suck carbon from air

    It has long been regarded as one of the more blue-skies solutions to climate change. Now two companies have vastly increased their capability to suck carbon dioxide from the air. One, based in Canada, plans to convert captured CO2 into diesel to fuel buses; the other, in Switzerland, will sell it on to a firm that uses CO2 to boost crop growth in greenhouses. The ...


    By GLOBE SERIES

  • The Chemical Route to a Carbon Dioxide Neutral World

    Excessive CO2 emissions in the atmosphere from anthropogenic activity can be divided into point sources and diffuse sources. The capture of CO2 from flue gases of large industrial installations and its conversion into fuels and chemicals with fast catalytic processes seems technically possible. Some emerging technologies are already being demonstrated on an industrial scale. Others are still ...


    By SusChem

  • Air pollution impacts from carbon capture and storage (CCS)

    Carbon Capture and Storage (CCS) consists of the capture of carbon dioxide (CO2) from power plants and/or CO2-intensive industries such as refineries, cement, iron and steel, its subsequent transport to a storage site, and finally its injection into a suitable underground geological formation for the purposes of permanent storage. It is considered to be one of the medium term 'bridging ...

  • Why geoengineering can be only part of the climate solution

    Climate change is not a technological problem, so a technological fix is not enough. The failure of the Kyoto Protocol and the underlying process of the United Nations Framework Convention on Climate Change (UNFCCC) has led to substantial interest in geoengineering technologies, under the usual (and not entirely irrational) view that if policy can’t work, perhaps technology ...


    By Ensia

  • The hidden risk of negative emissions technologies

    Strategies for removing carbon from the atmosphere all have down sides. The biggest? Their ability to lull us into complacency. The best way to keep your floor dry is to avoid spilling a bucket of water onto the floor, rather than to deliberately tip the bucket and then develop technologies to dry the floor. The same is true of greenhouse gases: We need to prevent their ...


    By Ensia

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