Renewable diesel is a true hydrocarbon just like diesel, and meets ASTM International’s standard for Diesel Fuel Oils (D-975). It has a different molecular structure from biodiesel, which is a methyl-ester.
Because of this structural difference, renewable diesel is a superior product with a higher cetane index than typical ultra-low sulfur diesel (ULSD), and unlike biodiesel, an energy density value equivalent to ULSD. Renewable diesel can be distributed using the established petroleum pipeline system, while biodiesel requires truck or rail transport.
With the combination of Darling Ingredients' ability to provide low-cost carbon-friendly feedstocks – in the form of tallow from recycled animal by-product and used cooking oil collected from restaurants – and Valero’s experience as the largest global independent refiner and a leading marketer, Diamond Green Diesel is a sustainable biofuel facility that is helping meet growing renewable energy demands.
Rendered animal fats, used cooking oil and inedible corn oil are byproducts that provide a responsible and sustainable feedstock for producing renewable diesel. Renewable diesel produced from these byproducts is fully compatible with existing engines and infrastructure and has a substantially lower carbon intensity than soybean-based biodiesel.
Diamond Green Diesel’s feedstock is shipped by rail or truck, and then processed mostly into renewable diesel for shipping by pipeline, rail or vessel into markets in the U.S. and internationally.
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