Summary of the important ones for gasification, at 20C and 1atm.
(from Engineering Toolbox: http://www.engineeringtoolbox.com/gas-density-d_158.html )
CO = 1.165kg/m3
H2 = .0899kg/m3
N2 = 1.165kg/m3
CH4 = 0.668kg/m3
CO2 = 1.8421kg/m3
O2 = 1.331kg/m3
Air Density = 1.205kg/m3
1 m3 = 1.205 kg
1 kg = 0.8299 m3
Wood Gas Density (calculated assuming 20% CO, 20% H2, 60% N2) = 0.950kg/m3
1m3 = .950kg
1kg = 1.053m3
Ratio of AirDensity : WoodGasDensity = 1.205 : 0.950
= 1.27 : 1 or 1 : 0.79
Densities, molecular weight and chemical formulas of some common gases can be found in the table below:
| Gas |
Formula |
Molecular
weight |
Density - ρ - |
| (kg/m3) |
(lbm/ft3) |
| Acetylene (ethyne) |
C2H2 |
26 |
1.0921)
1.1702) |
0.06821)
0.07292) |
| Air |
|
29 |
1.2051)
1.2932) |
0.07521)
0.08062) |
| Ammonia |
NH3 |
17.031 |
0.7171)
0.7692) |
0.04481)
0.04802) |
| Argon |
Ar |
39.948 |
1.6611) |
0.10371) |
| Benzene |
C6H6 |
78.11 |
3.486 |
0.20643 |
| Blast furnace gas |
|
|
1.2502) |
0.07802) |
| Butane |
C4H10 |
58.1 |
2.4891)
2.52) |
0.15541)
0.1562) |
| Butylene (Butene) |
C4H8 |
56.11 |
2.504 |
0.1482) |
| Carbon dioxide |
CO2 |
44.01 |
1.8421)
1.9772) |
0.11501)
0.12342) |
| Carbon disulphide |
|
76.13 |
|
|
| Carbon monoxide |
CO |
28.01 |
1.1651)
1.2502) |
0.07271)
0.07802) |
| Carbureted Water Gas |
|
|
|
0.048 |
| Chlorine |
Cl2 |
70.906 |
2.9941) |
0.18691) |
| Coke Oven Gas |
|
|
|
0.0342) |
| Combustion products |
|
|
1.112) |
0.0692) |
| Cyclohexane |
|
84.16 |
|
|
| Digester Gas (Sewage or Biogas) |
|
|
|
0.062 |
| Ethane |
C2H6 |
30.07 |
1.2641) |
0.07891) |
| Ethyl Alcohol |
|
46.07 |
|
|
| Ethyl Chloride |
|
64.52 |
|
|
| Ethylene |
C2H4 |
28.03 |
1.2602) |
0.07862) |
| Helium |
He |
4.02 |
0.16641) |
0.010391) |
| N-Heptane |
|
100.20 |
|
|
| Hexane |
|
86.17 |
|
|
| Hydrogen |
H2 |
2.016 |
0.08992) |
0.00562) |
| Hydrochloric Acid |
|
36.47 |
|
|
| Hydrogen Chloride |
HCl |
36.5 |
1.5281) |
0.09541) |
| Hydrogen Sulfide |
H2S |
34.076 |
1.4341) |
0.08951) |
| Methane |
CH4 |
16.043 |
0.6681)
0.7172) |
0.04171)
0.04472) |
| Methyl Alcohol |
|
32.04 |
|
|
| Methyl Butane |
|
72.15 |
|
|
| Methyl Chloride |
|
50.49 |
|
|
| Natural gas |
|
19.5 |
0.7 - 0.92) |
0.044 - 0.0562) |
| Neon |
Ne |
20.179 |
|
0.052 |
| Nitric oxide |
NO |
30.0 |
1.2491) |
0.07801) |
| Nitrogen |
N2 |
28.02 |
1.1651)
1.2502) |
0.07271)
0.07802) |
| Nitrogen Dioxide |
NO2 |
46.006 |
|
|
| N-Octane |
|
114.22 |
|
|
| Nitrous Oxide |
N2O |
44.013 |
|
0.114 |
| Nitrous Trioxide |
NO3 |
62.005 |
|
|
| Oxygen |
O2 |
32 |
1.3311)
1.4292) |
0.08311)
0.08922) |
| Ozone |
O3 |
48.0 |
|
0.125 |
| N-Pentane |
|
72.15 |
|
|
| Iso-Pentane |
|
72.15 |
|
|
| Propane |
C3H8 |
44.09 |
1.8821) |
0.11751) |
| Propene (propylene) |
C3H6 |
42.1 |
1.7481) |
0.10911) |
| R-11 |
|
137.37 |
|
|
| R-12 |
|
120.92 |
|
|
| R-22 |
|
86.48 |
|
|
| R-114 |
|
170.93 |
|
|
| R-123 |
|
152.93 |
|
|
| R-134a |
|
102.03 |
|
|
| Sasol |
|
|
|
0.032 |
| Sulfur |
S |
32.06 |
|
0.135 |
| Sulfur Dioxide |
SO2 |
64.06 |
2.2791)
2.9262) |
0.17031)
0.18282) |
| Sulfur Trioxide |
SO3 |
80.062 |
|
|
| Sulfuric Oxide |
SO |
48.063 |
|
|
| Toluene |
C7H8 |
92.141 |
4.111 |
0.2435 |
| Water Vapor |
H2O |
18.016 |
0.804 |
0.048 |
| Water gas (bituminous) |
|
|
|
0.054 |
1) NTP - Normal Temperature and Pressure - is defined as air at 20oC (293.15 K, 68oF) and 1 atm ( 101.325 kN/m2, 101.325 kPa, 14.7 psia, 0 psig, 30 in Hg, 760 torr)
2) STP - Standard Temperature and Pressure - is defined as air at 0oC (273.15 K, 32oF) and 1 atm (101.325 kN/m2, 101.325 kPa, 14.7 psia, 0 psig, 30 in Hg, 760 torr)
- 1 lb/ft3 = 16.018 kg/m3
- 1 kg/m3 = 0.0624 lb/ft3
Comments (0)
You don't have permission to comment on this page.