OCR Text |
Show LAB RESEARCH SUMMARY: LIGHT AND HEAVY OIL Standardized tests were conducted by Battelle under simulated boiler conditions to determine with certainty the effect of Ve1ino Ventures Carbonex (xylene + organoiron) on the combustion performance of surrogate light and heavy Swiss-like oils. The influence of three levels of Carbonex iron (0.2, 1.0, and 5.0 ppm) was evaluated at two levels of excess combustion air (10 and 26 percent). findings: The reproducible results indicated the following significant • Pretreatment of heavy oil with 1+ ppm Carbonex iron: Reduced particulate carbon 90-97 percent, Increased combustion efficiency up to 1.6 percent, Reduced average particulate size 50 percent, andIncreased NOx emissions up to 12 percent. • Reducing excess air from 26 to 10 percent, with the Carbonextreated heavy fuel, resulted in a net reduction in NOx of 11 percent while maintaining combustion efficiency at 99.90+ percent. • Pretreatment of light oil with 0.2+ ppm Carbonex iron at 10 percent excess air: Reduced particulate carbon by 38 percent, Reduced particulate loading by 33 percent, Had no influence on CO, NOx' particulate size, or the already acceptable combustlon efficiency, effects that were equivalent to increasing the excess air to 26 percent. • The pretreatment of the Swiss-like oils with 0.2-1 ppm Carbonex iron allowed them to be combusted at 10 percent excess air without reducing the combustion efficiency achievable at 26 percent excess air or compromising the lower NOx emissions achievable at this reduced level of excess air. |