NBB works to clarify Texas market, dye injection regulations

By | December 01, 2005
The National Biodiesel Board (NBB) continues to aggressively pursue its testing program on behalf of the industry to certify B20 as a Texas Low Emission Diesel program (TxLED) equivalent diesel fuel. The Texas Commission on Environmental Quality (TCEQ) has awarded three grants to the NBB to fund these tests. The NBB is providing significant additional financial resources to complete the testing.

The NBB plans to conduct the testing so that a B20 blend utilizing biodiesel meeting ASTM specifications (regardless of feedstock) would be covered. The blend will have to include one of the additive formulations approved by TCEQ. The NBB is partnering with Octel-Starreon to test B20 with one of Octel-Starreon's NOx reducing additives; B20 blend utilizing a generic cetane improver, ethyl hexyl nitrate, which has shown to lower NOx through work done at NREL; and B20 using a third additive which is yet to be selected.

"Locating a reference diesel fuel that could be acceptable to both the TCEQ and California Air Resources Board (CARB) has been difficult and led to delays in testing," said Scott Hughes, NBB regulatory director. "NBB intends to work with CARB to use the results of this testing project for its ongoing CARB B20 testing project, in effect killing two birds with one stone."

The potential reference fuel is scheduled to undergo required fuel analysis that both TCEQ and CARB will review. Preliminary data has been sent to speed the reference fuel's approval process, upon which the emissions testing through Southwest Research Institute can begin. After pre-screening, each additive formulation will take approximately one week to complete its tests. "Our goal is to complete testing and have certifications by the end of the year," Hughes said.
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