Chemical tanker · Liberia flag · built 2006
STOLT ZULU: CO₂ emissions 2021–2025
IMO 9351531 EU ETS5 reporting years
- CO₂ reported 2025
- 12,054 t
- Fuel burned
- 3,865 t
- Distance
- 51,930 nm
- Time at sea
- 4,087 h
- Emitted at berth
- 5% of total
- Share of year under way
- 47%
- Gross tonnage
- 16,442
STOLT ZULU against its type
Built in 2006, it is 4 years older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 16,442 gross tonnage it is smaller than 60% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 402 chemical tankers here under the Liberia flag, 17.2% of the 2,344 on the register. The returns for 2021–2025 all give Monrovia as port of registry.
Its 12,054 t of CO₂ for 2025 is 2.2 times the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 232.1 kg CO₂, close to the type median of 250.2 kg. It logged 4,087 hours at sea against a median of 2,106 hours for its type that year. 5.4% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 5 years with reported emissions, the highest was 2024 (13,724 t) and the lowest 2021 (3,683 t). Its efficiency percentile within the type went from 25 in 2021 to 39 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 1 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2021–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 12,054 | 3,865 | 51,930 | 4,087 | 646 | 232.1 | 12.5 | 39 |
| 2024 | 13,724 | 4,393 | 56,304 | 4,926 | 348 | 243.8 | 12.9 | 37 |
| 2023 | 12,260 | 3,910 | 44,284 | 3,434 | 1,526 | 276.9 | 16.4 | 53 |
| 2022 | 7,131 | 2,274 | 27,099 | 2,182 | 1,166 | 263.2 | 15.4 | 49 |
| 2021 | 3,683 | 1,181 | 15,312 | 1,193 | 48 | 240.5 | 11.8 | 25 |
Vessel particulars
- IMO number
- 9351531
- Ship type
- Chemical tanker
- Gross tonnage
- 16,442
- Length overall
- 158.5 m
- Beam
- 25.6 m
- Year built
- 2006
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- Monrovia MRV 2025
- Technical efficiency (design)
- EEXI (6.94 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-19
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 526 of 1,348 qualifying chemical tankers by EEOI, at the 39th percentile. The dashed line is the type median, 14.4; this vessel reported 12.5.
EEOI divides emissions by transport work, which for this vessel and year was 965,124,900 tonne-miles over 51,930 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 227.3% higher than in 2021, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 12.2% while distance sailed fell 7.8%and CO₂ per nautical mile fell 4.8%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 12,244 t
- Methane (CH₄)
- 0.19 t
- Nitrous oxide (N₂O)
- 0.70 t
- Under EU ETS
- 6,528 t, 54% of total
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2021–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 5 MRV reporting years, an efficiency ranking and 4 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, a licensed photograph, a sanctions listing and US port state inspections.
Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.