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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. —Erik Ytreberg.

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Study finds total greenhouse gas footprint of blue hydrogen “quite high” due to fugitive methane

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“Blue” hydrogen—produced through steam methane reforming (SMR) of natural gas or coal gasification, but with CO 2 capture and storage—is being described as having low or zero carbon emissions. For our default assumptions (3.5% Even if true though, the use of blue hydrogen appears difficult to justify on climate grounds.

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Japan, China researchers develop plasma-assisted MnO2 filter that produces zero-NO2, -SO2 diesel exhaust

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This research, published in the journal Separation and Purification Technology , shows that ozone can be used to remove not only SO x but also NO x from fossil fuel combustion exhaust streams. In this study, to improve absorption performance of SO 2 and NO 2 , we added ozone in exhaust gas. 2018.12.077.

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Optimized heavy-duty CI engine fueled with DME delivers diesel performance, significantly reduces engine-out emissions

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The engine was also equipped with an electrically driven volumetric pump in the exhaust gas recirculation (EGR) path which gives the freedom to set any desired EGR rate, independently from the pressure ratios across the turbocharger. EGR system consisting of an EGR cooler, an electrically driven EGR pump and respective piping.

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Eaton leverages cylinder deactivation and exhaust thermal management technologies to reduce commercial vehicle emissions

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New emissions regulations spearheaded by the California Air Resources Board (CARB), U.S. These agencies, in concert with other national and international regulators, seek to significantly reduce greenhouse gas (GHG) emissions and harmful air pollutants produced primarily by heavy-duty trucks, vans and buses.

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Achates near-zero heavy-duty opposed-piston diesel enters fleet service; compliant with 2027 NOx levels

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liter, heavy-duty opposed-piston, three-cylinder diesel engine it developed in a project funded by the California Air Resources Board (CARB) and several partners ( earlier post ) has entered fleet service with WALMART Corporation in a Peterbilt 579 tractor. Achates Power announced that the 10.6-liter,

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Study finds diesel oxidation catalyst eliminates mutagenicity of diesel exhaust in gas phase

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A team of researchers in Germany has found that the mutagenicity of diesel engine exhaust (DEE) is eliminated in the gas phase by a Diesel Oxidation Catalyst (DOC), but only slightly reduced in the particle phase. Further investigations showed that condensates of the gas phase are likewise mutagenic.

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