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MODERN GASWORKS PRACTICE
F. S. Sinnatt1 and L. Slater have deternained the relative proportions of the olefines present as follows :—
Per cent, by volume of total olefines.
I. II.
Ethylene ____________________________________....... 84-0 r. 84*3
Propylene ____________________________________....... 13-4 .. 11*8
Butylene ____________________________________....... 1'75 .. 2’35
Amylene ____________________________________....... 0-97 .. 1'54
The most comprehensive analysis of an average sample of straight coal gas (in which, however, incombustible constituents are somewhat excessive) has been given by Lessing 2:—
Per cent, by volume. B.Th.U. per cubic foot of constituent at 60° and 30 in. moist gas. B.Th.U. per cubic foot of total gas at 60° and 30 in. moist gas.
Saturated Hydrooarbon Gases:
Methane 22-68 992 224-96
Ethane 1-53 1,730 26-47
Propane Unsaturated Hydrocarbon Gases: •31 — 24-52 2,207 6-20 257’63
Ethylene 2-89 1,559 45-06
Propylene •29 2,301 6-67
Butylene •05 3,042 1-52
Acetylene Vapours: •10 — 3-33 1,452 1-45 — 54-70
Benzene •72 3,738 26-91
Toluene •13 4,378 5-69
Xylene, etc •22 5,099 11-22
Naphthalene •01 5,783 •58
Carbon bisulphide .... Other Gases: •03 1-11 1,240 •37 — 44-77
Carbon monoxide .... 12-69 318 40-35
Hydrogen Inert Gases : 37-73 50-42 320 120-74 161-09
Carbon Dioxide .... 4-07
Oxygen 1-09
Nitrogen 15-46 20-62 100-00 518-19 518-19
Gas J., CXLV, p. 489.
Soc. Public Analysts, 1920.
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