Navalyze · Chemical tanker · Ship

RAMONA

IMO: 9271896
Type: Chemical tanker
Average cargo carried: 7,857 t
Flag (estimated): Sweden
Port of registry: DonsÖ
Technical efficiency: EIV 12.20 g CO₂/t·nm
Ice class: IA

ISM company (DoC holder) in 2024: Rederi AB Alvtank

Report year

2019 at a glance

From the 2019 THETIS-MRV report. Carries about 8,234 t of cargo on average.

Fuel kg/nm

61.9

Chemical tanker median 88.3 kg/nm (−30%)

CO₂ per transport work (cargo)

23.8

g CO₂/t·nm · Chemical tanker median 17.3 (+37%)

Average speed

6.8 kn

Chemical tanker median 10.1 kn (−33%)

Fuel per day at sea

10.1 t/day

Fuel consumed

2,385 t

CO₂ emitted

7,539 t

Distance sailed

38,516 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,657 h

236 days, 65% of the year

Within the chemical tanker fleet, 2023

Set against all 1,314 chemical tanker ships with a full-year 2023 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 67.6 kg/nm · median 81.9 (−17%)

55.0Ranks 336 of 1,314, lowest first115

Average speedThis ship 9.8 kn · median 11.2 (−12%)

9.1Faster than 18% of chemical tanker ships12.7

CO₂ per transport work (cargo)This ship 27.6 g CO₂/t·nm · median 16.2 (+70%)

9.07Ranks 987 of 1,314, lowest first43.8

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2019

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 ports69%
From the EU4%
Into the EU12%
At berth in the EU15%

Fuel burned laden

–

Not reported

CO₂ at berth

1,154 t

15.3% 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

RAMONA
Chemical tanker median

50.060.070.080.090.0100.0

’182018’192019’202020’212021’222022’232023

Average speed, kn

RAMONA
Chemical tanker median

6.08.010.012.0

’182018’192019’202020’212021’222022’232023

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

RAMONA
Chemical tanker median

15.020.025.030.0

’182018’192019’202020’212021’222022’232023

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2022→2023	+0.5 kn	+1%	+7%	+30%	−6%	0.5 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2021→2022	+0.3 kn	+20%	+24%	−28%	+37%	0.3 kn faster, fuel per mile up 20%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−0.3 kn	−14%	−18%	−10%	−13%	0.3 kn slower, fuel per mile down 14%; better than speed alone explains (hull, engine or trade).
2019→2020	+2.5 kn	+5%	+45%	+1%	+4%	2.5 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.4 kn	−7%	−2%	+2%	−18%	0.4 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).

Part-year reports are left out of these comparisons. 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
2024part-year	Rederi AB Alvtank	1,133	3,634	15,537	1,599	9.7	73.0	29.4	–
2023	not published	2,231	7,153	32,999	3,369	9.8	67.6	27.6	–
2022	not published	1,697	5,441	25,356	2,726	9.3	66.9	29.4	–
2021	not published	1,948	6,236	35,057	3,887	9.0	55.6	21.5	–
2020	not published	2,542	8,095	39,092	4,189	9.3	65.0	24.8	–
2019	not published	2,385	7,539	38,516	5,657	6.8	61.9	23.8	–
2018	not published	2,511	7,935	37,696	5,846	6.4	66.6	29.0	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2024part-year	Rederi AB Alvtank	–	–	–	–	Bureau Veritas	B+C
2023	not published	27.6	16.2	+70%	987 of 1,314	Bureau Veritas	B+C
2022	not published	29.4	16.1	+83%	1,120 of 1,409	Bureau Veritas	B+C
2021	not published	21.5	16.7	+29%	894 of 1,343	Bureau Veritas	B+C
2020	not published	24.8	16.2	+53%	972 of 1,312	Bureau Veritas	B+C
2019	not published	23.8	17.3	+37%	923 of 1,321	Bureau Veritas	B+C
2018	not published	29.0	17.1	+69%	1,009 of 1,294	Bureau Veritas	B+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.