article thumbnail

ORNL team develops carbon-nanotube-based superlubricity coating

Green Car Congress

Scientists at the Department of Energy’s Oak Ridge National Laboratory have developed a coating composed of carbon nanotubes that imparts superlubricity to sliding parts. In comparison, when dry metals slide past each other, the coefficient of friction is around 0.5. We tried it without oil; it didn’t work. Kumara et al.

Carbon 417
article thumbnail

Review of co-processing of biocrudes in oil refineries

Green Car Congress

Liquid intermediates from pyrolysis and hydrothermal liquefaction (HTL) can be co-processed in an oil refinery along with conventional crude oil. After pyrolysis, the vapors are condensed to give a dark brown fast pyrolysis bio-oil (FPBO). In fast pyrolysis, biomass is quickly heated to around 500 °C in the absence of oxygen.

Oil 448
article thumbnail

3 Oil Majors That Bet Big On Renewables

Green Car Congress

Big Oil has frequently been chided for merely trying to burnish its green credentials, and so far, it has done little to convince us that it is truly moving forward to greenness. Let this sink in: In 2018, Big Oil spent less than 1% of its combined budget on green energy projects. by Alex Kimani for Oilprice.com. 2 Total SA.

Oil 418
article thumbnail

Global Carbon Project: Global carbon emissions growth slows, but hits record high

Green Car Congress

Driven by rising natural gas and oil consumption, levels of CO 2 are expected to hit 37 billion metric tons this year, according to new estimates from the Global Carbon Project (GCP), an initiative led by Stanford University scientist Rob Jackson. and China account for more than half of all carbon dioxide emissions globally.

Carbon 195
article thumbnail

S&P Global: More than 75% of oil and gas production in US Gulf of Mexico has lower than average greenhouse gas intensity

Green Car Congress

More than three-fourths of all oil and gas production in the US Gulf of Mexico has a lower greenhouse gas (GHG) intensity than the basin-wide average, according to a new S&P Global Commodity Insights analysis. For comparison, the GHG intensity range for 99% total 2021 production across the North Sea study area extends to c.

Mexico 150
article thumbnail

Goodyear unveils 90% sustainable-material demonstration tire, approved for road use

Green Car Congress

Lower rolling resistance means this demonstration tire has the potential to offer better fuel savings and carbon footprint reduction. These carbon black technologies target reduced carbon emissions, circularity and the use of bio-based carbons, while still delivering on performance.

Oil 293
article thumbnail

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

Green Car Congress

“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. Our analysis assumes that captured carbon dioxide can be stored indefinitely, an optimistic and unproven assumption.

Hydrogen 414