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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
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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
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2020 Thanksgiving week gasoline consumption in US lowest since 1997

Green Car Congress

Gasoline sales fell 8.4% (nearly 185 million less gallons) from the previous week for the seven-day period ending 28 November, bringing consumption to the lowest level for a Thanksgiving Week in 23 years, going back to 1997. Northeastern gasoline sales dropped 10.1% —Tom Kloza, executive director, IHS Markit.

Gasoline 321
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Converting Oil Shale to Gasoline via Alberta Taciuk Processor Results in Full Fuel Cycle GHG Emissions 1.5-1.75 Larger Than From Conventionally Produced Gasoline

Green Car Congress

GHG emissions for ATP shale (low and high cases) and conventional gasoline in grams of CO 2 e per MJ of final fuel delivered. times larger than emissions from conventionally produced gasoline. Mbbl of shale oil from 2.7 More recently, OSEC has proposed using the Petrosix process, another oil shale retorting technology.

Gasoline 239
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Catalytic cracking of vegetable oil sludge to produce biohydrocarbons

Green Car Congress

Researchers in Viet Nam and Belgium have developed a catalytic cracking process to convert vegetable oil sludge to renewable hydrocarbon fractions. Vegetable oil sludge is a major byproduct of vegetable oil factories, and consists of triglycerides (61%), free fatty acid (37%) and impurities (2%). 2010.10.060.

Oil 275
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CMU study finds small battery PHEVs and gasoline hybrids the least-cost policy solution to reducing gasoline consumption

Green Car Congress

Comparison of current federal subsidy to base case assumptions showing lifetime fuel savings (HomeEve charging scenario). An EPA estimate based on the Chevy Volt’s reported efficiency is also included for comparison. In all cases, HEVs and PHEVs save gasoline over conventional vehicles. Earlier post.).

Gasoline 308
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Study finds that environmental impact of corn-ethanol E85 is 23% to 33% higher than that of gasoline; environmental problem-shifting

Green Car Congress

Environmental impacts of gasoline and E85. In a similar way, the full breadth of impacts attributable to conventional gasoline production, such as natural resource consumption and hazardous pollutant emissions, must also be considered in order to make balanced comparisons to biofuels. Process flow diagrams for E85 and gasoline.

Gasoline 357