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SwRI engineers develop near-zero emissions diesel engine technology; 90% reduction of NOx

Green Car Congress

Southwest Research Institute engineers have developed the next generation of clean diesel engine technology to reduce hazardous nitrogen oxides (NO x ) and carbon dioxide emissions while minimizing fuel consumption. g/hp-hr NO x emissions). SwRI developed the technology for the California Air Resources Board (CARB). and Rao, S.

Engine 545
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Study finds GHG emissions from corn ethanol now 46% lower than gasoline

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A new study by a team from Environmental Health & Engineering (EH&E) has found that greenhouse gas emissions from corn ethanol are 46% lower than those from gasoline—a decrease in emissions from the estimated 39% done by previous modeling. EH&E) and Adjunct Professor of Environmental Health at Harvard’s T.H. Scully et al.

Gasoline 493
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Study finds high-density, low-rise cities such as Paris may be optimal urban form for reducing life cycle GHG emissions

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A study by researchers at CU Boulder and Edinburgh Napier University finds that high-density, low-rise environments such as those found in Paris are the optimal urban form when looking to reduce greenhouse gas emissions over their whole life cycle. However, urban environmental design often neglects life cycle GHG emissions.

Emissions 476
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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. Carbon dioxide emissions, including emissions from developing, processing, and transporting the fuels, are shown in orange.

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Komatsu announces customer alliance to advance zero-emission mining; power-agnostic haul truck

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Komatsu and its mining customers Rio Tinto, BHP, Codelco and Boliden have formed the Komatsu Greenhouse Gas (GHG) Alliance. The formation of the alliance brings together mining leaders willing to share time, resources and information to deliver zero-emissions equipment solutions.

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Monash study on solar-driven electrolysis for green hydrogen production cautions on life-cycle emissions and EROI

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There is no immediate concern for copper resources, but the average ore grade is declining as higher grade deposits become exhausted. The NWIS comprises mostly gas-fired generation and has a GHG emission factor of 620 g CO 2 -e kWh -1. Production in a lower emission region would significantly decrease the GHG emission intensity.

Solar 459
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Argonne study compares life cycle emissions of battery-grade lithium carbonate and lithium hydroxide from brines and ores

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An open-access paper on the study is published in the journal Resources, Conservation and Recycling. Production of Li 2 CO 3 from brine-based resources had less life cycle GHG emissions and freshwater consumption per tonne of Li 2 CO 3 than Li 2 CO 3 from ore-based resources. 2021.105762. 2021.105762.

Carbon 397