Fuel additives for Biodiesel 20
There are a couple of other criteria to keep in mind. You’ll notice the definitions above make reference to “renewable biomass” and “greenhouse gas reduction.” Biofuels sold under RFS2 must be derived from renewable biomass, and must meet certain greenhouse gas reduction targets. The EPA has specific ways to determine whether a fuel meets these criteria.
- Planted crops and crop residue harvested from agricultural land cleared or cultivated at any time prior to December 19, 2007 that is either actively managed or fallow, and nonforested.
- Planted trees and tree residue from actively managed tree plantations on non-federal land cleared at any time prior to enactment of this sentence, including land belonging to an Indian tribe or an Indian individual, that is held in trust by the United States or subject to a restriction against alienation imposed by the United States.
- Animal waste material and animal byproducts.
- Slash and pre-commercial thinnings that are from non-federal forestlands, including forestlands belonging to an Indian tribe or an Indian individual, that are held in trust by the United States or subject to a restriction against alienation imposed by the United States, but not forests or forestlands that are ecological communities with a global or State ranking of critically imperiled, imperiled, or rare pursuant to a State Natural Heritage Program, old growth forest, or late successional forest.
- Biomass obtained from the immediate vicinity of buildings and other areas regularly occupied by people, or of public infrastructure, at risk from wildfire.
- Separated yard waste or food waste, including recycled cooking and trap grease.
In order to protect forests and other ecologically sensitive land, biomass taken from the following types of land is NOT included in the EPA's definition of renewable biomass: 1. forestland; 2. rangeland; 3. other ecologically sensitive land. In addition, crops or residues from land cleared for farming after December 19, 2007 are not eligible as renewable biomass.
Greenhouse Gas Reduction
The Renewable Fuel Standard "marks the first time that greenhouse gas emission performance is being applied in a regulatory context for a nationwide program, " according to the RFS2 Final Rule (see p. 14670). In other words, for the first time a federal program is regulating transportation fuel according to its greenhouse gas emissions.
As of February 2011, the EPA has approved biodiesel from soy oil, oil from annual cover crops, algae oil, waste grease, animal fats, non-food grade corn oil, and canola oil, as meeting the 50% greenhouse gas reduction necessary to be sold as "advanced biofuel" or "biomass-based diesel".
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