RFG Property and Performance Averages for Houston-Galveston, TX
Summer | Years & Standards: Simple Model |
Phase I Complex |
Phase II Complex |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Data | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2005** | 2006 |
Number of surveys | 9 | 5 | 5 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 1 | 7 |
Average of oxygen (w%) | 2.17 | 1.87 | 1.95 | 2.04 | 2.00 | 2.11 | 2.08 | 2.15 | 2.20 | 2.13 | 2.05 | 1.95 | 3.50 |
Average of benzene (v%) | 0.715 | 0.694 | 0.792 | 0.756 | 0.747 | 0.613 | 0.648 | 0.601 | 0.600 | 0.531 | 0.662 | 0.556 | 0.427 |
Average of rvp (psi) | 6.99 | 7.02 | 7.07 | 6.99 | 6.96 | 6.67 | 6.70 | 6.85 | 6.91 | 6.94 | 6.94 | 6.90 | 6.92 |
Average of aromatics (v%) | 25.89 | 26.13 | 25.32 | 27.85 | 26.57 | 20.12 | 20.04 | 20.43 | 20.23 | 21.18 | 21.68 | 19.71 | 18.04 |
Average of sulfur (ppm) | 191 | 223 | 151 | 138 | 131 | 122 | 77 | 63 | 68 | 34 | |||
Average of olefins (v%) | 10.31 | 11.98 | 10.22 | 10.47 | 11.32 | 12.38 | 11.65 | 12.08 | 13.36 | 11.25 | |||
Average of E200 (%) | 48.1 | 48.9 | 47.7 | 47.6 | 48.7 | 49.6 | 49.7 | 50.2 | 51.4 | 47.9 | |||
Average of E300 (%) | 81.6 | 81.9 | 84.1 | 84.0 | 83.3 | 83.2 | 82.1 | 83.1 | 84.0 | 84.7 | |||
Average of T50 (F) | 205.4 | 203.3 | 205.2 | 205.3 | 203.0 | 201.2 | 200.6 | 199.3 | 196.9 | 205.4 | |||
Average of T90 (F) | 336.5 | 336.8 | 329.8 | 329.2 | 331.6 | 332.8 | 339.8 | 332.9 | 330.6 | 329.7 | |||
Average of MTBE (w%) | 10.79 | 8.84 | 9.27 | 10.45 | 10.26 | 11.01 | 10.42 | 10.95 | 11.39 | 11.13 | 10.57 | 9.71 | 0.03 |
Average of ethanol (w%) | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 10.07 |
Average of TAME (w%) | 0.90 | 1.52 | 1.50 | 0.81 | 0.84 | 0.67 | 1.13 | 0.86 | 0.73 | 0.57 | 0.71 | 1.11 | 0.00 |
Average of ETBE (w%) | 0.03 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of TPA (w%) | 0.00 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of IPA (w%) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of NBA (w%) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of TBA (w%) | 0.05 | 0.02 | 0.02 | 0.01 | 0.01 | 0.02 | 0.03 | 0.04 | 0.04 | 0.06 | 0.05 | 0.03 | 0.00 |
Average of NPA (w%) | 0.02 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of SBA (w%) | 0.00 | 0.01 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.01 | 0.01 | 0.01 | 0.01 | 0.00 | 0.00 |
Average of DIPE (w%) | 0.28 | 0.12 | 0.08 | 0.05 | 0.02 | 0.02 | 0.02 | 0.04 | 0.03 | 0.04 | 0.03 | 0.02 | 0.00 |
Average of IBA (w%) | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of methanol (w%) | 0.01 | 0.00 | 0.04 | 0.01 | 0.02 | 0.02 | 0.03 | 0.02 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 |
Avg Ethanol Volume% | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 9.41 | ||||||
Avg Specific Gravity | 0.743 | 0.746 | 0.743 | 0.742 | |||||||||
Phase I Complex Model VOC Reduction (%) | 40.33 | 40.86 | |||||||||||
Phase I Complex Model Toxics Reduction (%) | 33.57 | 33.56 | |||||||||||
Phase I Complex Model NOx Reduction (%) | 4.93 | 3.08 | |||||||||||
Phase II Complex Model VOC Reduction (%) | 24.69 | 25.37 | 29.93 | 29.78 | 28.91 | 29.10 | 28.58 | 29.11 | 30.24 | ||||
Phase II Complex Model Toxics Reduction (%) | 26.97 | 26.91 | 34.12 | 33.91 | 34.26 | 34.45 | 35.50 | 34.17 | 35.17 | ||||
Phase II Complex Model NOx Reduction (%) | 4.62 | 2.80 | 8.25 | 8.71 | 8.46 | 8.04 | 10.24 | 10.26 | 13.56 |
*Click on a data value hyperlink to see a graph comparing this area to other areas for the particular RFG parameter.
**These surveys conducted between 9/2/05 and 9/15/05 are not included in the adjacent column averages.
EPA allowed early use of winter gasoline in a Hurricane Katrina-related waiver issued August 31, 2005.
RFG Property and Performance Averages for Houston-Galveston, TX
Winter | Years & Standards: Simple Model |
Phase I Complex |
Phase II Complex |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Data | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 |
Number of surveys | 8 | 7 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Average of oxygen (w%) | 2.00 | 1.83 | 1.92 | 1.97 | 1.99 | 2.04 | 2.06 | 2.04 | 2.08 | 2.03 | 2.06 | 2.74 |
Average of benzene (v%) | 0.642 | 0.780 | 0.666 | 0.670 | 0.708 | 0.688 | 0.662 | 0.653 | 0.615 | 0.568 | 0.583 | 0.552 |
Average of rvp (psi) | ||||||||||||
Average of aromatics (v%) | 21.33 | 21.94 | 20.87 | 21.42 | 22.71 | 19.14 | 19.55 | 21.24 | 19.95 | 19.22 | 18.82 | 19.70 |
Average of sulfur (ppm) | 209 | 243 | 219 | 211 | 168 | 191 | 104 | 68 | 46 | |||
Average of olefins (v%) | 10.01 | 9.78 | 9.30 | 11.08 | 10.27 | 12.49 | 11.62 | 12.17 | 11.32 | |||
Average of E200 (%) | 56.0 | 55.6 | 54.3 | 54.2 | 54.4 | 55.6 | 54.8 | 56.1 | 54.6 | |||
Average of E300 (%) | 83.7 | 84.0 | 83.6 | 83.8 | 83.9 | 83.3 | 83.2 | 84.4 | 84.1 | |||
Average of T50 (F) | 183.8 | 185.1 | 189.0 | 189.4 | 189.3 | 186.2 | 187.9 | 185.3 | 183.1 | |||
Average of T90 (F) | 330.9 | 330.3 | 329.5 | 329.2 | 328.9 | 334.6 | 333.1 | 328.9 | 329.8 | |||
Average of MTBE (w%) | 9.94 | 8.56 | 9.37 | 10.02 | 10.33 | 10.52 | 10.21 | 10.39 | 10.62 | 10.20 | 10.80 | 5.17 |
Average of ethanol (w%) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.98 |
Average of TAME (w%) | 0.86 | 1.36 | 1.23 | 0.91 | 0.67 | 0.77 | 1.22 | 0.82 | 0.84 | 1.00 | 0.49 | 0.41 |
Average of ETBE (w%) | 0.01 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of TPA (w%) | 0.01 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of IPA (w%) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of NBA (w%) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of TBA (w%) | 0.03 | 0.01 | 0.00 | 0.01 | 0.02 | 0.04 | 0.04 | 0.04 | 0.04 | 0.05 | 0.04 | 0.01 |
Average of NPA (w%) | 0.03 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of SBA (w%) | 0.00 | 0.01 | 0.02 | 0.00 | 0.01 | 0.00 | 0.01 | 0.01 | 0.01 | 0.00 | 0.01 | 0.00 |
Average of DIPE (w%) | 0.17 | 0.24 | 0.14 | 0.03 | 0.04 | 0.03 | 0.04 | 0.06 | 0.03 | 0.05 | 0.04 | 0.01 |
Average of IBA (w%) | 0.02 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Average of methanol (w%) | 0.04 | 0.01 | 0.00 | 0.01 | 0.01 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.01 | 0.01 |
Avg Ethanol Volume% | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.62 | ||||||
Avg Specific Gravity | 0.732 | 0.732 | 0.739 | |||||||||
Phase I Complex Model VOC Reduction (%) | 6.28 | 5.05 | ||||||||||
Phase I Complex Model Toxics Reduction (%) | 24.15 | 21.95 | ||||||||||
Phase I Complex Model NOx Reduction (%) | 5.60 | 4.50 | ||||||||||
Phase II Complex Model VOC Reduction (%) | ||||||||||||
Phase II Complex Model Toxics Reduction (%) | 24.56 | 22.80 | 25.67 | 24.77 | 25.41 | 26.11 | 28.77 | 29.62 | 27.88 | |||
Phase II Complex Model NOx Reduction (%) | 5.70 | 4.60 | 6.78 | 6.18 | 7.19 | 5.60 | 10.03 | 10.96 | 12.51 |
*Click on a data value hyperlink to see a graph comparing this area to other areas for the particular RFG parameter.