Specifications
Fuels 33
Designation Unit Limit Value Remarks
Oil vapors (HC with carbon
number >5)
mg/m³
N
<0.4
No condensation in lines carrying fuel gas
and fuel gas-air mixture, nor formation o f
condensable oil mists
HC solvent vapors mg/m³
N
0
Consultation with manufacturer and
analysis necessary
Organically fixed silicon
(e.g. hydrosilicons,
siloxanes, silicons)
mg/m³
N
<1.0
Consultation with manufacturer and
analysis necessary
Inorganically fixed silicon mg/m³
N
CH
4
<5
With Si >5 mg/m³
N
based on 100% CH
4
fuel gas content, wear products must be
taken into consideration during the oil
analysis
Dust 3-10 µm
mg/m³
N
5
DVGW worksheet G260
Dust <3µm
mg/m³
N
Analysis
Total sulfur mg/m³
N
30
DVGW worksheet G260
Mercaptan sulfur mg/m³
N
6
DVGW worksheet G260
Hydrogen sulphide H
2
S mg/m³
N
5
DVGW worksheet G260
Chlorine mg/m³
N
10*
With higher values, consultation with
manufacturer and analysis are necessary
Fluorine
mg/m³
N
5*
With higher values, consultation with
manufacturer and analysis are necessary
Chlorine + f luorine mg/m³
N
10*
With higher values, consultation with
manufacturer and analysis are necessary
NH
3
ppm
70*
With higher values, consultation with
manufacturer and analysis are necessary
* = a non-binding guideline value, where oxidation-type catalytic converters are in use.
Analysis and consultation with MTU necessary.
The limit values are based on a calorific value of 10 kWh/m
3
N
. This corresponds to a reference
to fuels with 100% by vol. methane or, if there are other combustible elements in the fuel, an
equal energy equivalent and thus an equal input of pollutants.
Example:
Russian natural gas with a calorific value of 10 kWh/m
3
N
(Table 16) is used. The permissible value for total
sulfur in the gas thus corresponds exactly to the limit value specified in Table 18.
When using gas from Osthannover, for example, with Hu = 8.15 kWh/m
3
N
(Table 17) the
permissible max
. value of total sulfur is calculated thus:
permissible total sulfur content = 30 mg/m³
N
(8.15 kWh/m
3
N
: 10.0 kWh/m
3
N
) = 24.5 mg/m³
N
No warranty is given in re
spect of impairment and / or damage (corrosion, contamination etc.)
resulting f rom gases or materials the presence of which was unknown and agreed upon on
conclusion of contract.
A001061/33E 08-01 ©MTU
TIM ID: 0000010137 – 007