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Global Power Technologies
1120 - Class I, Division 2, Group D, T3
4 APPENDIX
4.1 Gas Specifications
STANDARD SPECIFICATIONS FOR GASEOUS FUELS FOR TEGS
A.
Shall not contain any particulates larger than 30µm diameter, including but not limited to
sand, dust, gums, crude oil, and impurities.
B.
Shall not have a hydrocarbon dew point in excess of 0ºC (32ºF) at 170 kPa
g
(25 psi
g
).
C.
Shall not contain more than 115 mg/Sm
3
(2)
(approx. 170 ppm) of H
2
S.
D.
Shall not contain more than 60 mg/Sm
3
(approx. 88 ppm) of Mercaptan Sulphur.
E.
Shall Not contain more than 200 mg/Sm
3
(approx. 294 ppm) of total Sulphur.
F.
Shall not contain more than 10% [CO
2
] and/or [N
2
] by volume, nor vary more than +/- 1%
[CO
2
] and/or [N
2
] during operation.
G.
Shall not contain more than 120 mg/Sm
3
of water vapour.
H.
Shall not contain more than 1% by volume of free oxygen.
I.
Shall have a gross heating value of:
Natural Gas:
37 MJ/Sm
3
(1000 BTU/cu.ft.)
(1)
Propane/LPG:
93 MJ/Sm
3
(2500 BTU/cu.ft.)
(1)
Butane:
108 MJ/Sm
3
(2900 BTU/cu.ft.)
(1)
J.
Shall not exceed 60ºC (140ºF) in temperature.
Notes:
(1) - For gaseous fuels outside of these specifications, please contact Global Power
Technologies (GPT).
(2) - Sm
3
= Standard cubic meter of gas at 101.325 kPa at 20ºC (NIST).
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