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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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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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NREL report finds electrified heavy-duty vehicle powertrains could provide lower total cost of ownership than diesel under certain conditions

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A new total cost of ownership (TCO) study from the National Renewable Energy Laboratory (NREL) finds that battery-electric and fuel-cell electric commercial trucks could be economically competitive with conventional diesel trucks by 2025 in some operating scenarios. —Hunter et al.

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Diamond Green Diesel seeks LCFS certification for three renewable diesel pathways

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In addition to RD, the process produces a liquid petroleum gas vapor stream (LPG vapor); a liquid petroleum liquid stream (naphtha LPG); and a purge gas stream. All of the co-product streams go to the adjacent Valero oil refinery to be separated into fuel gas, propane, and naphtha through a distillation process. UCO: 19.92.

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ETH Zürich team developing light-duty natural gas-diesel hybrid electric powertrain; 43 g/km CO2

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Consumption measurements of the dual-fuel natural gas-diesel engine as a function of speed and load. Researchers at ETH Zürich have developed a light-duty hybrid electric vehicle featuring a dual-fuel natural gas-diesel engine. Source: Ott et al. Click to enlarge. earlier post ) and Clean Air Power (e.g.,

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US EPA awards $9.6M in DERA grants to reduce harmful diesel emissions in California

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million in Diesel Emission Reduction Act (DERA) grants to public and private partners in California. The funds will be used to retrofit and replace old, polluting diesel vehicles and equipment, including school buses, heavy-duty trucks, tractors and port equipment. The US Environmental Protection Agency (EPA) awarded $9.6

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SoCalGas introduces STARS solar hydrogen generation system at California Air Resources Board Symposium

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Southern California Gas Co. SoCalGas) introduced an innovative new solar-powered hydrogen generation system during the California Air Resources Board Technology Expo and Symposium at the University of California, Riverside. This is the equivalent of 25 gallons of gasoline or diesel fuel. Earlier post.).

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