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SwRI CAT-DEF reduces heavy-duty diesel emissions to meet CARB 2027 NOx requirements

Green Car Congress

CAT-DEF—Catalyzed Diesel Exhaust Fluid—is an SwRI-developed catalyst- and surfactant-modified diesel exhaust fluid (DEF) solution. The internally funded advancement successfully reduced heavy-duty diesel engine nitrogen oxide (NO x ) emissions to meet the California Air Resources Board (CARB) 2027 standards.

Diesel 284
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Volkswagen 2.0 TDI diesel for Euro 6d; SCR twin-dosing

Green Car Congress

TDI diesel for Euro 6d; SCR twin-dosing. Volkswagen continues to refine its most important diesel engine, the 2.0-liter With SCR twin dosing technology in the exhaust gas system, the diesel unit now undercuts the Euro 6d emission standard limits while also running quietly and smoothly, according to the company.

Diesel 435
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ULEMCo delivers water tanker converted to use hydrogen dual fuel

Green Car Congress

UK-based ULEMCo has worked with Yorkshire Water to produce what is believed to be the first water tanker anywhere to operate on hydrogen fuel. tonne bowser has been converted from a standard truck to use hydrogen dual fuel, an approach that allows fleet managers to transition more quickly to low carbon operation.

Water 243
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California adopts comprehensive strategy to meet federal ozone standard over next 15 years

Green Car Congress

The California Air Resources Board today approved a statewide plan for attaining the federal health-based standard for ozone, typically experienced as smog. The 2022 State Implementation Plan Strategy identifies the state’s control strategy for meeting the federal 70 parts per billion, 8-hour ozone standard over the next 15 years.

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EPA proposes Renewable Fuel Standard (RFS) volumes for 2023-2025; seeking input on future modifications

Green Car Congress

The US Environmental Protection Agency (EPA) issued a multipart proposal for required volumes of biofuel under the Renewable FUel Standard (RFS) for the next one to three years and on a series of modifications to the program. Biomass-based diesel*. Supplemental standard. Biomass-based diesel is in gallons. Renewable fuel.

EPA 210
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SwRI engineers help develop post-refinery diesel treatment that overcomes soot/NOx tradeoff for cleaner burning fuel

Green Car Congress

Southwest Research Institute (SwRI) is helping a client develop a simple post-refinery treatment process that reduces exhaust emissions from diesel engines by overcoming the soot/nitrogen oxides (NO x ) reduction trade-off that has plagued engine researchers for decades. The first is a non-polar substance and the second is a bipolar mixture.

Cleaner 321
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Gevo develops process to convert isobutanol or fusel oils into renewable diesel

Green Car Congress

has developed proprietary, breakthrough processes that convert either low-carbon isobutanol or low-value fusel oils—a mixture of alcohols that are byproducts from fermentation processes such as alcohol production—into renewable diesel. Gevo expects this to open yet another door for Gevo products.

Renewable 236