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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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New lifecycle analysis of WTW GHG emissions of diesel and gasoline refined in US from Canadian oil sands crude

Green Car Congress

In a new, comprehensive study, a team from Argonne National Laboratory, Stanford University and UC Davis ITS has estimated the well-to-wheels (WTW) GHG emissions of US production of gasoline and diesel sourced from Canadian oil sands. g CO 2 e/MJ for US conventional crude oil recovery. This range can be compared to ∼4.4

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Study finds lubricating oil the dominant source of primary organic aerosol from both diesel and gasoline vehicles

Green Car Congress

Comparison plot showing mass fractions (F m ) of chemically characterized components of lubricating oils and POA. Unburned diesel fuel makes an additional smaller contribution, with an additional smaller contribution from unburned gasoline. 3 ), and SAE-10W30 and SAE-15W40 lubricating oils. Credit: ACS, Worton et al.

Oil 207
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DOE researchers investigate economic and environmental impacts of converting wet waste to renewable diesel

Green Car Congress

Meanwhile, wet waste feedstocks, such as animal manure and fats, oils, and greases (FOG), represent another important category of resources that could be utilized to produce MCCI bioblendstocks due to its abundant availability. gasoline liter equivalent (GLE) and $0.94/GLE Skaggs et al. demand in 2016. Skaggs et al. 1c06561.

Waste 434
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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