By Pira International Ltd
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Extra info for Advances in Biodiesel
Biodiesel produces 10–25% more nitrogen oxide (NOx) tailpipe emissions than petrodiesel. As biodiesel has a low sulphur content, NOx emissions can be reduced through the use of catalytic converters to less than the NOx emissions from conventional diesel engines. Nonetheless, the NOx tailpipe emissions of biodiesel after the use of a catalytic converter will remain greater than the equivalent emissions from petrodiesel. As biodiesel contains no nitrogen, the increase in NOx emissions may be due to the higher cetane rating of biodiesel and higher oxygen content, which allows it to convert nitrogen from the atmosphere into NOx more rapidly.
Diesels fare even worse when it comes to smog-forming nitrogen oxide emissions, with greater than 20 times the emissions of a comparable petrol vehicle. These estimates, however, are based on 2005 model year diesels in the US, prior to the introduction of ultra-low sulphur diesel (ULSD) and tightened emissions standards that have applied in several US states since 1 January 2007. The introduction of ULSD allows for the use of newer technologies to reduce particulate and other toxic emissions substantially; the EU has had lower sulphur requirements than the US for several years.
Tax incentives Here is a summary of the most important, in terms of overall impact, biodiesel-related tax enacted by US incentives and credits introduced by Congress in the US. They form an important guide for Congress policy makers in other countries, as the US seeks to become the principal producer and user of biodiesel within the next few years. Volumetric ‘blender’ tax credit The US Inland Revenue Service (IRS) publishes, via its website, the various forms associated with the volumetric biodiesel credit.
Advances in Biodiesel by Pira International Ltd