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Audi partnering with Climeworks on CO2 direct air capture and storage

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The facility will filter 4,000 metric tons of carbon dioxide from the air and mineralize it underground. With direct air capture technology, carbon dioxide is extracted from the ambient air and air free of CO 2 is returned to the atmosphere. The carbon dioxide is thus permanently removed from the atmosphere.

Audi 446
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ETH Zurich: carbon-neutral fuel made from sunlight and air

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CO 2 and water are extracted directly from ambient air via an adsorption/desorption process. At the heart of the solar reactor is a ceramic structure made of cerium oxide, which enables a two-step reaction—the redox cycle—to split water and CO 2 into syngas.

Carbon 247
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Study Finds Stratospheric Water Vapor Is An Important Driver of Decadal Global Surface Climate Change

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Decadal warming rates arising from (i) greenhouse gases and aerosols alone (black); (ii) that obtained including the stratospheric water decline after 2000 (red); and (iii) including both the stratospheric water vapor decline after 2000 and the increase in the 1980s and 1990s (cyan). Stratospheric water vapor and radiative processes.

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Leclanché reduces cobalt in NMCA cells from 20 to 5%; 20% higher energy density; water-based production

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Leclanché SA has reduced the cobalt content in NMCA as cathode material from 20% to 5% and manufacture the electrodes using an environmentally friendly water-based process. Water binder-based NMCA cathodes are easier to dispose of and are also recyclable. Thus, it offers not only ecological but also economical advantages.

Water 221
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EU project HyFlexFuel converted sewage sludge and other biomasses into kerosene by hydrothermal liquefaction (HTL); SAF

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Sustainability: The HTL technology has the potential to produce fuels with a low carbon footprint over the entire life cycle, without competing with food and feed production. Under these conditions, biomass is converted into a crude bio-oil, which is separated from the process water behind the reactor.

Convert 418
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PSI team demonstrates direct hydrocarbon fuel production from water and CO2 by solar-driven thermochemical cycles

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By utilizing a redox material such as ceria (CeO 2 ) as a reactive medium, STCs can produce hydrogen and carbon monoxide—i.e., syngas—from water and CO 2. Schematic illustration of direct hydrocarbon (C x H y O z ) formation from water and carbon dioxide during the reoxidation of reduced ceria doped with a catalyst (Cat.).

Water 170
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AVA Biochem begins commercial-scale production of 5-HMF from biomass using HTC

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AVA Biochem in Muttenz (Switzerland) has begun commercial-scale production of 5-(hydroxymethyl)furfural (5-MHF) from biomass at its Biochem-1 facility using a modified version of a hydrothermal carbonization (HTC) process developed by the Karlsruhe Institute of Technology (KIT). This yellow, low-melting solid is highly water-soluble.