The Texas Commission on Environmental Quality (TCEQ) has approved ORYXE International’s biodiesel fuel additive—ORYXE LED for Biodiesel—for use in the state.
Test results from a B20 biodiesel blend, submitted to the TCEQ, show that the additive reduces the NOx emissions from biodiesel to the level required to qualify as Texas Low Emission Diesel (TxLED). The ORYXE Energy technology is the first additive for biodiesel to win approval from the state of Texas.
According to ORYXE, the proprietary ingredient in the biodiesel additive is biodegradable, non-toxic and compatible with fossil fuels.
The emissions tests that supported the approval under the TxLED program were conducted at West Virginia University Engine and Emissions Research Laboratory, an EPA-recognized facility, and were funded in part by the state of Texas through a grant from the TCEQ.
The TxLED program was launched in November of 2005 to reduce NOx emissions from diesel exhaust in 110 counties, including the metropolitan areas of Houston, Dallas-Ft. Worth, Austin and San Antonio. TCEQ has in the past proposed bans on biodiesel blends due to concerns over an increase in NOx emissions it associates with biodiesel use. (Earlier post.)
TCEQ bases its stance largely on a 2002 EPA report showing a two-percent increase in NOx emissions for B20. However, a recent study by the US Department of Energy’s National Renewable Energy Laboratory (NREL) concluded that vehicles using a B20 biodiesel blend (20% biodiesel and 80% petroleum diesel) do not produce an increase in nitrogen oxide (NOx) emissions. (Earlier post.)
The test results on the ORYXE additive at WVU showed a 3.8% increase in NOx from the addition of 20% biodiesel to standard EPA diesel. Use of the additive brought NOx emissions closer to the base fuel level, although not quite equivalent.
|WVU testing of ORYXE Additive|
|Base fuel average||0.142||3.249||4.737||0.237|
|B20 + ORYXE||0.115||2.735||4.766||0.190|
Texas is one of the largest biodiesel producers in the nation with 15 existing commercial production plants and several more under construction. According to the National Biodiesel Board, the state’s total annual production capacity will double in 2007 to approximately 250 million gallons.
ORYXE Energy also produces an additive for standard diesel at its blending facility in Pasadena, Texas.