Green Car Congress

NOVEMBER 17, 2009

A University of Utah engineer has developed an inexpensive new method to remove oil sheen by repeatedly pressurizing and depressurizing ozone gas, creating microscopic bubbles that attack the oil so it can be removed by sand filters. Water from mining of oil sands and oil shale. Heavy metals in soil.

Ozone 199

Ozone Water Oil-Sands Oil 199

Green Car Congress

MARCH 17, 2011

Separation of bitumen from a Canadian oil sand sample using an ionic liquid. A team of researchers at Penn State has developed a new, more environmentally friendly method of separating bitumen from oil sands utilizing ionic liquids (IL). Oil sands represent approximately two-thirds of the world’s estimated oil reserves.

Oil-Sands 257

Oil-Sands Oil Saudi Arabia Water 257

Cars That Think

OCTOBER 30, 2024

Here’s the basic recipe: Blend cement with larger amounts of sand and other aggregates. Currently that means burning coal, coke, fuel oil, or natural gas, often along with waste plastics and tires. Why cement production emits so much carbon Though the terms “cement” and “concrete” are often conflated, they are not the same thing.

Portland 145

Portland Carbon Coal Emissions 145