Do our H+H SCR systems meet the limit values of the (inter) national emission regulations?
Our H+H SCR systems comply with the following regulations in the stationary sector
44. BImSchV
| Natural Gas Engines | |||
| mg/m3 (5% O2) | lean-burn engines | lambda-1-engines | ignition engine |
| CO | 250 | 250 | 250 |
| NOX | 100 | 100 | 100 |
| SOX | 9 or DVGW G60 | 9 or DVGW G60 | 9 or DVGW G60 |
| total C | 1300 | 300 | 1300 |
| formaldehyde | 20 | 5 | 20 |
| NH3 | 30 | – | 30 |
| Biogas Engines | ||
| mg/m3 (5% O2) | lean-burn engines | ignition engine |
| CO | 500 | 500 |
| NOX | 100 | 100 |
| SOX | 89 | 89 |
| total C | 1300 | 1300 |
| formaldehyde | 20 | 20 |
| Staub | 4 | 4 |
Emission limit values of 44. BImSchV for wood-fired systems
| Natural Wood – New plants | |||
| mg/m3 (6% O2) | 1 up to < 5 MW | 5 up to < 20 MW | from 20 MW |
| Dust | 35 | 20 | 20 |
| NOX | 370 | 300 | 200 |
| SOX | – | – | – |
| Natural wood – Existing plants | |||
| mg/m3 (6% O2) | 1 up to < 5 MW | 5 up to < 20 MW | from 20 MW |
| Dust | 50 | 30 | 30 |
| NOX | 370 | 370 | 370 |
| SOX | – | – | – |
| No natural wood – New plants | |||
| mg/m3 (6% O2) | 1 up to < 5 MW | 5 up to < 20 MW | from 20 MW |
| Dust | 30 | 30 | 20 |
| NOX | 370 | 300 | 200 |
| SOX | – | – | – |
| No natural wood – Existing plants | |||
| mg/m3 (6% O2) | 1 up to < 5 MW | 5 up to < 20 MW | from 20 MW |
| Dust | 30 | 30 | 30 |
| NOX | 600 | 600 | 370 |
| SOX | – | – | – |
| Emission limits for natural wood for pollutants not regulated by MCPD | |
| Pollutant | Emission limit value mg/m3 (6 % O2) |
| CO | 220 |
| HCI | 45 (only for not natural wood) |
| Corg | 10 (new plants) 15 (existing plants) |
| Hg | 0,05 (only wood waste A II) |
| NH3 | 30 (only with SNCR or SCR) |
Emission limit values of 44. BImSchV for oil and gas firing
| Natural gas firing – new plants | |||
| mg/m3 (3% O2) | 1 up to < 10 MW | 10 up to < 20 MW | from 20 MW |
| CO | 80 | 50 | 50 |
| NOX | 100 | 100 | 100 |
| SOX | – | 10 | 10 |
| Exhaust gas loss | 9 % | 9 % | – |
| Natural gas firing – Existing plants | |||
| mg/m3 (3% O2) | 1 up to < 10 MW | 10 up to < 20 MW | from 20 MW |
| CO | 110 | 80 | 50 |
| NOX | 150 | 150 | 150 |
| SOX | – | 10 | 10 |
| Exhaust gas loss | 9 % | 9 % | – |
| Firing fuel oil EL – New plants | |||
| mg/m3 (3% O2) | 1 up to < 10 MW | 10 up to < 20 MW | from 20 MW |
| CO | 80 | 80 | 80 |
| NOX | 200 | 150-200 | 150-200 |
| SOX | – | 10. BImSchV | 10. BImSchV |
| Amount of soot | 1 | 1 | 1 |
| Exhaust gas loss | 9 % | 9 % | – |
| Firing fuel oil EL – Existing plants | |||
| mg/m3 (3% O2) | 1 up to < 10 MW | 10 up to < 20 MW | from 20 MW |
| CO | 150 | 80 | 80 |
| NOX | 200 | 150-200 | 150-200 |
| SOX | – | 10. BImSchV | 10. BImSchV |
| Amount of soot | 1 | 1 | 1 |
| Exhaust gas loss | 9 % | 9 % | – |
MCP (EU) 2015/2193
| Emission limit values (mg/Nm3) for new engines and gas turbines | |||||
| Pollutant | Type of medium combustion plant | Gas oil | Liquid fuels other than gas oil | Natural gas | Gaseous fuels other than natural gas |
| SO2 | Engines and gas turbines | – | 120 | – | 15 |
| NOX | Engines | 190 | 190 | 95 | 190 |
| NOX | Gas turbines | 75 | 75 | 50 | 75 |
| Dust | Engines and gas turbines | – | 10 | – | – |
H+H SCR system in two stages (SCR preparation)
The limit values for formaldehyde CH20 are valid from 2020, whereas the limit values for nitrogen oxides NOx for
biogas engines will be valid from 2023 and for natural gas engines from 2025.
Here we recommend our H+H SCR system in two stages (SCR preparation): In the first step, an SCR housing
is provided with an oxidation catalyst in order to reduce the formaldehyde. In the second step, the system can be
expanded by the SCR catalyst, the control unit and the pump.
Our H+H SCR systems comply with the following regulations in the maritime sector
IMO MARPOL Annex VI, Regulation 13
| Tier | Geopraphical scope | Ship construction date (on or after) | Total weighted cycle emission limit (g/kWh) n = engine’s rated speed (rpm) | ||
| n < 130 | n = 130-1,999 | n ≥ 2,000 | |||
| I | Global | 1 January 2000 | 17.0 | 45 * n-0.2 | 9.8 |
| II | Global | 1 January 2011 | 14.4 | 44 * n-0.23 | 7.7 |
| III | In North America and United States Caribbeans | 1 January 2016 | 3.4 | 9 * n-0.2 | 2.0 |
Our H+H SCR systems comply with the following regulations in the inland waterway vessel
(EU) 2016/1628
| EU Stage V limit values and introduction dates for the engine category IWP/IWA | ||||||||
| Power (kW) | CI/SI | CO (g/kWh) | HC 1) (g/kWh) | NOx (g/kWh) | PM (g/kWh) | PN (#/kWh) | A 1) | date 2) |
| 19 ≤ P < 75 | both | 5,00 | (HC + NOx ≤ 4,70) | 0,30 | – | 6,00 | 6,00 | 01.01.2019 |
| 75 ≤ P < 130 | both | 5,00 | (HC + NOx ≤ 5,40) | 0,14 | – | 6,00 | 6,00 | 01.01.2019 |
| 130 ≤ P < 300 | both | 3,5 | 1,00 | 2,10 | 0,10 | – | 6,00 | 01.01.2019 |
| P ≥ 300 | both | 3,50 | 0,19 | 1,80 | 0,015 | 1 * 1012 | 6,00 | 01.01.2020 |
1) For gas engines the A factor must be used to determine the HC limit values
2) Date of placing on the market, type approval one year earlier than the specified date
CCR2-Norm
| Overview of emission limit values for Rhine ships according to RheinSchUO | ||||||
| Date | Stage | Maximum Power (kW) | CO (g/kWh) | HC (g/kWh) | NOx (g/kWh) | PT (g/kWh) |
| 2003 | CCNR1 | 130 – 560 > 560 | 5,0 5,0 | 1,3 1,3 | 9,2 9,2 – 12,5 | 0,54 0,54 |
| 2007 | CCNR2 | 130 – 560 > 560 | 3,5 3,5 | 1,0 1,0 | 6,0 6 – 9,5 | 0,2 0,2 |
Substantial Expericence
Personal and reliable
Our service engineers have been working for more than 30 years in the field
of exhaust gas and air treatment technology. Should you have any question,
we would be pleased to support you.
Contact us.
We look forward to
hearing from you.
Tel. +49(0)9562 400 63 – 0
Fax +49(0)9562 400 63 – 20
info@huhes.de
