article thumbnail

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

Green Car Congress

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. gCO 2 e/MJ) which is 46% lower than the average carbon intensity for neat gasoline.

Gasoline 493
article thumbnail

New study finds gasoline stations vent up to 10x more benzene fumes than previously thought

Green Car Congress

A study led by environmental health scientists at Columbia University Mailman School of Public Health examined the release of vapors from gasoline station vent pipes, and found benzene emissions were 10 times higher than estimates used in setback regulations that determine how close schools, playgrounds, and parks can be to the facilities.

Gasoline 365
article thumbnail

U Toronto study measures GDI emissions in urban near-road environment

Green Car Congress

A study of emissions from gasoline direct injection (GDI) vehicles in an urban near-road environment in Toronto over a wide range of weather conditions (February 2014 to January 2015) found that—other than for NO x and CO—the GDI engines had elevated emissions compared to the Toronto fleet. Naomi Zimmerman, Jonathan M.

article thumbnail

Emissions Analytics argues that current Pareto-efficient solution for decarbonization would be hybrids, not BEVs, based on do-no-harm

Green Car Congress

Source: Emissions Analytics The testing showed that the Kia’s gasoline particulate filter reduced particle mass to almost zero, and particle number to 97% below the Euro 6 regulatory limit. Compared to the average of all the current-generation gasoline vehicles the company has tested, the Kia is 38% lower at 113.4

Emissions 395
article thumbnail

Review of co-processing of biocrudes in oil refineries

Green Car Congress

In HTL, wet feedstock is liquefied in a hot (250–374 °C) and pressurized (4–22 MPa) water environment into biocrude oil. In comparison to FPBO, the biocrude from HTL is more deoxygenated and then more hydrophobic with less dissolved water. The research on co-hydrotreatment and hydrocracking is quite limited.

Oil 448
article thumbnail

Ford poll finds Europeans want freedom of car ownership, but worry about traffic, cost of driving, environment

Green Car Congress

A new Ford Motor Company-sponsored poll of 6,000 people across Europe found that most Europeans remain committed to car ownership, but have growing concerns about traffic congestion, the cost of driving and the environment. 57% say elected bodies bear most responsibility for reducing transport impact on the environment.

article thumbnail

Study finds all-electric rideshare fleet could reduce carbon emissions, but increase traffic issues

Green Car Congress

But the cars and SUVs used in these situations drive more miles each year than a typical personal vehicle, contributing a higher proportion of greenhouse gases to the environment. The researchers collected simulated rides provided by three fleets: gasoline-powered, and electric-powered with either 40 kWh or 60 kWh battery packs.

Fleet 195