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New exhaust catalyst features thermal durability and high reactivity at low operating temperatures

Green Car Congress

Catalytic converters have been used in the US since the 1970s as a way to clean up pollutants from vehicle exhaust. As cars have become more fuel-efficient, however, they use less energy and the temperature of the exhaust gases is lower, which makes it harder to clean up the pollutants. —Yong Wang.

Exhaust 270
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UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

Green Car Congress

In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. Cliff et al.

Emissions 397
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Chalmers study finds ship exhaust gas scrubbers responsible for up to 9% of certain hazardous emissions into Baltic Sea

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New research from Chalmers University of Technology, Sweden, finds that the discharge water from ships’ exhaust gas treatment systems—i.e., A scrubber is used on ships to clean exhaust gases, primarily to reduce emissions of sulfur oxides to the atmosphere.

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Auburn University leads $2M DOE Co-Optima project to evaluate renewable butyl acetate as diesel fuel additive

Green Car Congress

Auburn University researchers are leading a $2-million US Department of Energy Co-Optima project ( earlier post ) that will evaluate renewable butyl acetate (BA) as a bio-based fuel additive that can be blended with diesel fuel to reduce soot and greenhouse gas emissions and yield cleaner engine operation in cold-weather conditions.

Universal 247
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Researchers developing free-piston linear generator for exhaust waste heat recovery

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Researchers in China have developed a novel free-piston linear generator (FPLG) to recover exhaust waste heat efficiently from a vehicle engine. The FPLG can be used in a small-scale organic Rankine cycle (ORC) system and can directly convert the thermodynamic energy of working fluid into electricity. —Tian et al. Prototype FPLG.

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DOE to award up to $24M to advance direct air carbon capture technology

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The US Department of Energy (DOE) will award up to $24 million for research into technology that captures carbon emissions directly from the air, replicating the way plants and trees absorb CO 2. ( building HVAC exhaust) and from natural fluids (e.g., building HVAC exhaust) and from natural fluids (e.g., DE-FOA-0002481 ).

Carbon 360
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CMU study finds secondary organic aerosol production from PFI and GDI vehicles has been “substantially” reduced by tightening NMOG standards

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Secondary organic aerosol (SOA) is a major component of fine particulate matter—which causes adverse health effects—even in urban environments; vehicles may be a dominant source of SOA in urban areas, although there is still an ongoing debate over SOA formation from on-road sources. —Zhao et al.

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