Renewable diesel production process10/13/2023 ![]() Renewable diesel can be made from multiple feedstocks and at plants that also produce sustainable aviation fuel. More flexibility-Renewable diesel is a replacement for diesel and can be used to fully replace diesel or blended with any amount. California's Low Carbon Fuel Standard Certified Carbon Intensities shows renewable diesel reduces carbon intensity on average by 65% when compared with petroleum diesel. Renewable diesel offers many benefits, including:Įngine and infrastructure compatibility-renewable diesel meets the conventional petroleum ASTM D975 specification allowing it to be used in existing infrastructure and diesel engines.įewer emissions-an NREL study found renewable diesel reduced both carbon dioxide and nitrogen oxide emissions when compared with petroleum diesel. Another EIA Today in Energy Brief projected that renewable diesel supply would exceed biodiesel in 2022. EIA's Today in Energy Brief on renewable diesel suggests that production will increase rapidly in the next few years, with added capacity of 2.4 billion gallons per year currently under construction and an additional 1.8 billion gallons per year of planned capacity. Domestic production data shows that production has increased, and overall consumption is met with imports from plants operated by Neste in Singapore, the Netherlands, and Finland. 1, 2022, the Energy Information Agency (EIA) reported 11 domestic plants in 6 states with capacity of 1,750 million gallons per year. Hydrothermal processing-This process uses high pressure and moderate temperature to initiate chemical decomposition of biomass or wet waste materials to produce an oil that may be catalytically upgraded to hydrocarbon fuels.Īs of Jan. The process produces a liquid pyrolysis oil that can be upgraded to hydrocarbon fuels, either in a standalone process or as a feedstock for co-feeding with crude oil into a standard petroleum refinery. Pyrolysis-This pathway involves the chemical decomposition of organic materials at elevated temperatures in the absence of oxygen. Gasification-During this process, biomass is thermally converted to syngas and catalytically converted to hydrocarbon fuels. Commercial plants currently use this technology.īiological sugar upgrading-This pathway uses a biochemical deconstruction process, similar to that used with cellulosic ethanol with the addition of organisms that convert sugars to hydrocarbons.Ĭatalytic conversion of sugars-This pathway involves a series of catalytic reactions to convert a carbohydrate stream into hydrocarbon fuels. Traditional hydrotreating-Used in petroleum refineries, hydrotreating involves reacting the feedstock (lipids) with hydrogen under elevated temperatures and pressures in the presence of a catalyst. There are several technology pathways to produce renewable diesel including: Currently, commercial production facilities are using the hydrotreating pathway and fats, oils, and greases are the most common feedstocks. Renewable diesel can be produced by several different technology pathways. Biodiesel meets ASTM D6751 and is approved for blending with petroleum diesel. Biodiesel is a mono-alkyl ester produced via transesterification. It meets ASTM D975 specification for petroleum diesel. Renewable diesel, previously known as green diesel, is a hydrocarbon produced most often by hydrotreating and also via gasification, pyrolysis, and other biochemical and thermochemical technologies. Renewable diesel and biodiesel are not the same fuel. Nearly all domestically produced and imported renewable diesel is used in California due to economic benefits under the Low Carbon Fuel Standard. Renewable diesel can be used as a replacement fuel or blended with any amount of petroleum diesel. ![]() It meets the ASTM D975 specification for petroleum in the United States and EN 590 in Europe. Renewable diesel is a fuel made from fats and oils, such as soybean oil or canola oil, and is processed to be chemically the same as petroleum diesel. Find renewable diesel fuel prices and trends.
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