Navalyze · Chemical tanker · Ship

STOLT ALM

IMO: 9719238
Type: Chemical tanker
Average cargo carried: 28,871 t
Flag (estimated): Liberia
Port of registry: Monrovia
Technical efficiency: EEXI 4.84 g CO₂/t·nm

ISM company (DoC holder) in 2025: Stolt Tankers BV

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 22,019 t of cargo on average.

Fuel kg/nm

83.4

Chemical tanker median 90.2 kg/nm (−8%)

CO₂ per transport work (cargo)

11.8

g CO₂/t·nm · Chemical tanker median 17.1 (−31%)

Average speed

11.4 kn

Chemical tanker median 10.1 kn (+13%)

Fuel per day at sea

22.8 t/day

Fuel consumed

4,248 t

CO₂ emitted

13,284 t

Distance sailed

50,957 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,465 h

186 days, 51% 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 69.2 kg/nm · median 79.7 (−13%)

52.8Ranks 475 of 1,460, lowest first111

Average speedThis ship 13.1 kn · median 11.1 (+18%)

8.8Faster than 97% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 7.46 g CO₂/t·nm · median 15.0 (−50%)

7.93Ranks 96 of 1,460, lowest first40.2

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2018

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 ports18%
From the EU32%
Into the EU43%
At berth in the EU7%

Fuel burned laden

–

Not reported

CO₂ at berth

938 t

7.1% 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

STOLT ALM
Chemical tanker median

60.070.080.090.0100.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

STOLT ALM
Chemical tanker median

8.010.012.014.0

’182018’192019’202020’212021’222022’232023’242024’252025

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

STOLT ALM
Chemical tanker median

5.010.015.020.025.0

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.6 kn	−18%	−15%	−68%	−34%	0.6 kn faster, fuel per mile down 18%; better than speed alone explains (hull, engine or trade).
2023→2024	+0.5 kn	−1%	+3%	+34%	−18%	0.5 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2022→2023	−0.1 kn	+4%	+4%	−16%	+18%	Same speed, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+3.9 kn	−13%	+29%	−6%	−47%	3.9 kn faster, fuel per mile down 13%; better than speed alone explains (hull, engine or trade).
2020→2021	−4.2 kn	+8%	−29%	−34%	+51%	4.2 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+0.1 kn	−13%	−12%	−9%	−23%	Same speed, fuel per mile down 13%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.9 kn	+20%	+29%	−18%	+59%	0.9 kn faster, fuel per mile up 20%; in line with the speed change.

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	Stolt Tankers BV	598	1,862	8,645	660	13.1	69.2	7.46	–
2024	Stolt Tankers BV	2,260	7,083	26,650	2,134	12.5	84.8	11.3	–
2023	not published	1,701	5,328	19,910	1,660	12.0	85.4	13.8	–
2022	not published	1,936	6,067	23,675	1,964	12.1	81.8	11.7	–
2021	not published	2,353	7,392	25,096	3,065	8.2	93.8	22.0	–
2020	not published	3,293	10,363	37,863	3,061	12.4	87.0	14.6	–
2019	not published	4,161	13,049	41,761	3,409	12.3	99.7	18.8	–
2018	not published	4,248	13,284	50,957	4,465	11.4	83.4	11.8	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Stolt Tankers BV	7.46	15.0	−50%	96 of 1,460	DNV	B
2024	Stolt Tankers BV	11.3	16.7	−33%	339 of 1,274	DNV	B
2023	not published	13.8	16.2	−15%	499 of 1,314	DNV	B
2022	not published	11.7	16.1	−27%	372 of 1,409	DNV	B
2021	not published	22.0	16.7	+32%	909 of 1,343	DNV	B
2020	not published	14.6	16.2	−10%	537 of 1,312	Lloyd's Register	B
2019	not published	18.8	17.3	+9%	749 of 1,321	Lloyd's Register	B
2018	not published	11.8	17.1	−31%	320 of 1,294	Lloyd's Register	B

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.