Remove Carbon Remove Coal Remove Comparison Remove Universal
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
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

New inventory of black carbon emissions from China finds 2007 levels higher than previously reported

Green Car Congress

A new black carbon (BC) emissions inventory from China found BC emissions levels in 2007 of 1,957 Gg BC—higher than reported in earlier studies. The paper by researchers from Peking University and Environment Canada appears in the ACS journal Environmental Science & Technology. Major emission areas are marked. Click to enlarge.

2007 271
article thumbnail

DOE Selects 8 Projects to Advance Technologies for the Co-Production of Power and Hydrogen, Fuels or Chemicals from Coal-Biomass Feedstocks

Green Car Congress

The US Department of Energy (DOE) has selected 8 research projects for funding that will focus on gasification of coal/biomass to produce synthetic gas (syngas) as a pathway to producing power, hydrogen, fuel or chemicals. CoalTek, teaming with the University of Kentucky Center for Applied Energy Research in Lexington, Ky., Tucker, Ga.)

Coal 218
article thumbnail

U Chicago, MIT study suggests ongoing use of fossil fuels absent new carbon taxes

Green Car Congress

A paper by a team from the University of Chicago and MIT suggests that technology-driven cost reductions in fossil fuels will lead to the continued use of fossil fuels—oil, gas, and coal—unless governments pass new taxes on carbon emissions. for oil, 24% for coal, and 20% for natural gas.

Chicago 150
article thumbnail

Study finds that dry-feed gasification for coal-to-liquids is more efficient, lower-emitting and cheaper than slurry-feed; CCS cost-effective for reduction of CO2

Green Car Congress

Comparison of coal consumption and CO 2 emissions for co-production and separate production of liquids and power. Conventional CTL plant gasifies coal to produce a syngas which is then converted in a Fischer-Tropsch reactor to products. Tags: Coal-to-Liquids (CTL) Emissions. Source: Mantripragada and Rubin.

Coal 231
article thumbnail

Stanford team develops new ultrahigh surface area 3D porous graphitic carbon material for improved energy storage

Green Car Congress

Stanford University scientists have created a new ultrahigh surface area three-dimensional porous graphitic carbon material that significantly boosts the performance of energy-storage technologies. The maximum surface area achieved with conventional activated carbon is about 3,000 m 2 g –1.