Fuel properties
Páginas: 5 (1072 palabras)
Publicado: 14 de noviembre de 2011
|Properties of Fuels (a) |
| | |No.2 | | | | |Compressed | ||
|Property |Gasoline |Diesel Fuel |Methanol |Ethanol |MTBE |Propane |Natural Gas |Hydrogen |Biodiesel |
| | | | | | | |CH4 (83-99%), ||C12-C22 |
|Chemical Formula |C4 to C12 |C8 to C25 |CH3OH |C2H5OH |(CH3)3COCH3 |C3H8 |C2H6 (1-13%) |H2 |FAME |
|Molecular Weight |100–105 |~200 |32.04 |46.07 |88.15 |44.1 |16.04|2.02 |~292(q) |
|Composition, Weight % | | | | | | | | | |
|>Carbon |85–88(b) |87(g) |37.5 |52.2 |68.1 |82 |75|0 |77(g) |
|>Hydrogen |12–15(b) |13(g) |12.6 |13.1 |13.7 |18 |25 |100 |12(g) |
|>Oxygen |0 |0(g) |49.9 |34.7 |18.2 |– |–|0 |11(g) |
|Specific gravity, 60° F/60° F |0.72–0.78(b) |0.85(g) |0.796(h) |0.794(h) |0.744(k) |0.508(m) |0.424 |0.07(o) |0.88(g) |
|Density, lb/gal @ 60° F |6.0–6.5(b) |7.079(g) |6.63(b) |6.61(b) |6.19(k) |4.22|1.07(n) |– |7.328(g) |
|Boiling temperature, °F |80–437(b) |356-644(g) |149(h) |172(h) |131(h) |-44(m) |-263.2 to -126.4(m) |-423(m) |599-662(g) |
|Reid vapor pressure (100° F), | | | | || | | | |
|psi |8–15(c) |Lower (Btu/lb) (d) |18,676 |18,394 |8,637 |11,585 |15,091 |19,900 |20,263 |52,217 |16,131 |
|>Higher (Btu/gal) (d)|124,340 |137,380 |65,200 |84,530 |101,130 |91,420 |– |– |127,960 |
|>Higher (Btu/lb) (d) |20,004 |19,673 |9,837 |12,830 |16,316 |21,594 |22,449 |59,806 |17,266 |
|Octane no.(1)| | | | | | | | | |
|>Research octane no. |88–98(c) |– |– |– |– |112 |– |130+ |– |
|>Motor octane no....
| | |No.2 | | | | |Compressed | ||
|Property |Gasoline |Diesel Fuel |Methanol |Ethanol |MTBE |Propane |Natural Gas |Hydrogen |Biodiesel |
| | | | | | | |CH4 (83-99%), ||C12-C22 |
|Chemical Formula |C4 to C12 |C8 to C25 |CH3OH |C2H5OH |(CH3)3COCH3 |C3H8 |C2H6 (1-13%) |H2 |FAME |
|Molecular Weight |100–105 |~200 |32.04 |46.07 |88.15 |44.1 |16.04|2.02 |~292(q) |
|Composition, Weight % | | | | | | | | | |
|>Carbon |85–88(b) |87(g) |37.5 |52.2 |68.1 |82 |75|0 |77(g) |
|>Hydrogen |12–15(b) |13(g) |12.6 |13.1 |13.7 |18 |25 |100 |12(g) |
|>Oxygen |0 |0(g) |49.9 |34.7 |18.2 |– |–|0 |11(g) |
|Specific gravity, 60° F/60° F |0.72–0.78(b) |0.85(g) |0.796(h) |0.794(h) |0.744(k) |0.508(m) |0.424 |0.07(o) |0.88(g) |
|Density, lb/gal @ 60° F |6.0–6.5(b) |7.079(g) |6.63(b) |6.61(b) |6.19(k) |4.22|1.07(n) |– |7.328(g) |
|Boiling temperature, °F |80–437(b) |356-644(g) |149(h) |172(h) |131(h) |-44(m) |-263.2 to -126.4(m) |-423(m) |599-662(g) |
|Reid vapor pressure (100° F), | | | | || | | | |
|psi |8–15(c) |Lower (Btu/lb) (d) |18,676 |18,394 |8,637 |11,585 |15,091 |19,900 |20,263 |52,217 |16,131 |
|>Higher (Btu/gal) (d)|124,340 |137,380 |65,200 |84,530 |101,130 |91,420 |– |– |127,960 |
|>Higher (Btu/lb) (d) |20,004 |19,673 |9,837 |12,830 |16,316 |21,594 |22,449 |59,806 |17,266 |
|Octane no.(1)| | | | | | | | | |
|>Research octane no. |88–98(c) |– |– |– |– |112 |– |130+ |– |
|>Motor octane no....
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