Navalyze · Chemical tanker · Ship

DIAVOLO ROSSO

IMO: 9721750
Type: Chemical tanker
Average cargo carried: 12,746 t
Flag (estimated): Malta
Port of registry: Valletta
Technical efficiency: EEDI 9.75 g CO₂/t·nm
Former names: DAVIDE B, NQ ALPINIA

ISM company (DoC holder) in 2025: Mediterranea di Navigazione S.p.a

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 12,746 t of cargo on average.

Fuel kg/nm

79.1

Chemical tanker median 79.7 kg/nm (−1%)

CO₂ per transport work (cargo)

19.5

g CO₂/t·nm · Chemical tanker median 15.0 (+30%)

Average speed

11.4 kn

Chemical tanker median 11.1 kn (+3%)

Fuel per day at sea

21.6 t/day

Fuel consumed

3,542 t

CO₂ emitted

11,145 t

11,319 t CO₂eq incl. CH₄ and N₂O

Distance sailed

44,774 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,930 h

164 days, 45% 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 79.1 kg/nm · median 79.7 (−1%)

52.8Ranks 704 of 1,460, lowest first111

Average speedThis ship 11.4 kn · median 11.1 (+3%)

8.8Faster than 59% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 19.5 g CO₂/t·nm · median 15.0 (+30%)

7.93Ranks 924 of 1,460, lowest first40.2

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's emissions 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 ports30%
From the EU33%
Into the EU28%
At berth in the EU8%

69% of this ship's CO₂ falls under the EU ETS (7,701 t).

Fuel burned laden

2,472 t

70% of all fuel; 30% in ballast or unladen

CO₂ at berth

917 t

8.2% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.2 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+174 t

+1.6% CO₂eq on top of CO₂ alone, from CH₄ and N₂O; counted in full from 2026

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

DIAVOLO ROSSO
Chemical tanker median

70.075.080.085.090.0

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

Average speed, kn

DIAVOLO ROSSO
Chemical tanker median

10.011.012.013.0

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

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

DIAVOLO ROSSO
Chemical tanker median

15.017.520.022.525.0

’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	−0.7 kn	+1%	−6%	−20%	−14%	0.7 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.5 kn	+5%	+1%	+81%	+14%	0.5 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.3 kn	−12%	−14%	+1%	−14%	0.3 kn slower, fuel per mile down 12%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.3 kn	+7%	+9%	−22%	−7%	0.3 kn faster, fuel per mile up 7%; in line with the speed change.
2020→2021	+0.9 kn	−4%	+3%	+3%	+31%	0.9 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2019→2020	+1.4 kn	+16%	+31%	+87%	−10%	1.4 kn faster, fuel per mile up 16%; 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
2025	Mediterranea di Navigazione S.p.a	3,542	11,145	44,774	3,930	11.4	79.1	19.5	70%
2024part-year	Navquim	2,450	7,677	30,783	2,550	12.1	79.6	17.7	–
2024	Mediterranea di Navigazione S.p.a	4,420	13,881	56,187	4,633	12.1	78.7	22.7	23%
2023	not published	2,327	7,309	31,115	2,465	12.6	74.8	20.0	–
2022	not published	2,632	8,259	30,802	2,395	12.9	85.4	23.3	–
2021	not published	3,148	9,891	39,448	3,124	12.6	79.8	24.9	–
2020	not published	3,183	10,077	38,374	3,269	11.7	83.0	19.1	–
2019	not published	1,475	4,633	20,546	1,987	10.3	71.8	21.2	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Mediterranea di Navigazione S.p.a	19.5	15.0	+30%	924 of 1,460	ABS	A
2024part-year	Navquim	–	–	–	–	DNV	B
2024	Mediterranea di Navigazione S.p.a	22.7	16.7	+36%	842 of 1,274	ABS	–
2023	not published	20.0	16.2	+23%	796 of 1,314	DNV	B
2022	not published	23.3	16.1	+45%	1,012 of 1,409	DNV	B
2021	not published	24.9	16.7	+49%	971 of 1,343	RINA	B
2020	not published	19.1	16.2	+18%	821 of 1,312	RINA	B
2019	not published	21.2	17.3	+23%	852 of 1,321	RINA	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.