Navalyze · Chemical tanker · Ship

IONIAN SEA

IMO: 9322384
Type: Chemical tanker
Average cargo carried: 35,721 t
Flag (estimated): Liberia
Port of registry: Monrovia
Technical efficiency: EEXI 5.05 g CO₂/t·nm
Former names: SAN FERNANDO

ISM company (DoC holder) in 2025: SWISS CARRIERS S.A.

Report year

2022 at a glance

From the 2022 THETIS-MRV report. Carries about 38,615 t of cargo on average.

Fuel kg/nm

103

Chemical tanker median 84.6 kg/nm (+22%)

CO₂ per transport work (cargo)

8.46

g CO₂/t·nm · Chemical tanker median 16.1 (−47%)

Average speed

12.3 kn

Chemical tanker median 11.1 kn (+11%)

Fuel per day at sea

30.6 t/day

Fuel consumed

2,163 t

CO₂ emitted

6,844 t

Distance sailed

20,950 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,698 h

71 days, 19% of the year

Within the chemical tanker fleet, 2025

Set against all 1,460 chemical tanker ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel kg/nmThis ship 109 kg/nm · median 79.7 (+37%)

52.8Ranks 1,289 of 1,460, lowest first111

Average speedThis ship 11.2 kn · median 11.1 (+1%)

8.8Faster than 52% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 9.55 g CO₂/t·nm · median 15.0 (−37%)

7.93Ranks 314 of 1,460, lowest first40.2

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2022

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports6%
From the EU45%
Into the EU42%
At berth in the EU7%

Fuel burned laden

–

Not reported

CO₂ at berth

480 t

7.0% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

Full-year reports only. The Chemical tanker median is the middle ship of all chemical tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

IONIAN SEA
Chemical tanker median

70.080.090.0100.0110.0

’202020’222022’252025

Average speed, kn

IONIAN SEA
Chemical tanker median

11.011.512.012.5

’202020’222022’252025

CO₂ per transport work (cargo), g CO₂/t·nm

IONIAN SEA
Chemical tanker median

8.010.012.014.016.018.0

’202020’222022’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2022→2025	−1.1 kn	+5%	−5%	−54%	+13%	1.1 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2022	+0.1 kn	+0%	+1%	+157%	−44%	Same speed, fuel per mile flat.

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	SWISS CARRIERS S.A.	1,055	3,307	9,693	867	11.2	109	9.55	–
2022	not published	2,163	6,844	20,950	1,698	12.3	103	8.46	–
2020	not published	839	2,650	8,150	667	12.2	103	15.1	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	SWISS CARRIERS S.A.	9.55	15.0	−37%	314 of 1,460	ICS Verification Services	A
2022	not published	8.46	16.1	−47%	101 of 1,409	ClassNK	C
2020	not published	15.1	16.2	−7%	573 of 1,312	ClassNK	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Chemical tanker ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's chemical tanker ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.