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DOE researchers investigate economic and environmental impacts of converting wet waste to renewable diesel

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Heavy-duty diesel vehicles using mixing controlled compression ignition (MCCI), the most common ignition and combustion strategies for heavy-duty diesel engines, contribute significantly to the emissions of GHG, oxides of nitrogen (NO x ), and particular matter (PM) and are subject to stringent emission standards. Skaggs et al.

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CARB: clean fuels replaced more than 50% of diesel used in California in Q1 2023

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Clean fuels replaced more than 50% of the diesel used in the state in the first quarter of 2023, according to the California Air Resources Board (CARB). billion gallons of diesel. Since compliance began, the program has helped to replace more than 8.6

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CVR Energy selects Haldor Topsoe’s HydroFlex technology for revamp of Wynnewood refinery to renewable diesel, naphtha production

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CVR Energy will base a revamp of its Wynnewood, Oklahoma, refinery on Haldor Topsoe’s HydroFlex technology to produce approximately 100 million gallons of renewable diesel and more than 6 million gallons of renewable naphtha per year. —Dave Lamp, CEO & President of CVR Energy. We are very proud that CVR Energy, Inc.

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Rolls-Royce mtu Kinetic PowerPack approved for renewable diesel

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Rolls-Royce has approved its mtu Kinetic PowerPacks, based on the mtu Series 4000 and 1600 diesel engines, for use with renewable diesel (HVO/Hydrogenated Vegetable Oil) and the other synthetic diesel fuels of the EN15940 standard. The systems performed the same with HVO as with fossil diesel.

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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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California Energy Commission awards nearly $70M to replace diesel school buses with electric school buses throughout state

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The California Energy Commission approved nearly $70 million in funding to replace more than 200 old diesel school buses with all-electric buses that will reduce school children’s exposure to harmful emissions and help the state reach its climate and air quality goals. —Energy Commissioner Patty Monahan.

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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 experimental results showed that DME operation retains the performance on the base diesel engine (338 kW peak power) while significantly reducing the engine-out emissions. Transient operation is unproblematic and very low emissions can be achieved using the same exhaust gas treatment system as for diesel. Soltic et al.

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