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Navalyze · Market view · Segment

Chemical tanker ships, 2022

1,473 chemical tanker ships reported to THETIS-MRV for 2022, emitting 8.9 Mt of CO₂. Efficiency is measured as g CO₂/t·nm.

The segment at a glance

Median ship
16.1
g CO₂/t·nm
Fuel per mile
85 kg
Median ship
Average speed
11.1 kn
Median ship, distance over hours at sea
Hours at sea
2,039
Median ship, EU-scope voyages (23% of the year)
CO₂ at berth
11.1%
Share emitted alongside in EU ports
Ships burning LNG
11
of 1,409 benchmarked

Operators

The 2022 public files do not name the companies managing each ship, so operator rankings start in 2024.

Efficiency by ship size

Bigger ships move a tonne of cargo for less fuel, so ships are compared within size bands. Each row is drawn against the segment median.

0.25×0.5×segment median2×4×
  • Q1: ~4,987 t40.3 g CO₂/t·nm
  • Q2: ~12 kt20.9 g CO₂/t·nm
  • Q3: ~17 kt16.1 g CO₂/t·nm
  • Q4: ~24 kt12.4 g CO₂/t·nm
  • Q5: ~33 kt9.36 g CO₂/t·nm

Q1 to Q5 split the fleet into fifths by average cargo carried, derived from the published ratios.

Who verifies the reports

Accredited verifiers check each ship's MRV report. Their share of the segment's ships and CO₂.

Share of CO₂Share of ships
  • DNV30.5% / 26.8%
  • ABS16.2% / 18.7%
  • ClassNK13.2% / 15.0%
  • RINA9.1% / 6.7%
  • Verifavia8.2% / 7.7%
  • Lloyd's Register7.8% / 8.7%
  • Bureau Veritas5.6% / 7.2%
  • Korean Register2.3% / 2.1%
  • Swiss Climate1.6% / 1.2%
  • ICS Verification Services1.4% / 1.6%
  • 5 others4.3% / 4.3%

How fuel is measured

Each ship's monitoring plan names one or more of the four MRV methods.

A · Bunker delivery notes
40%
Fuel bought, corrected by tank soundings
B · Bunker tank monitoring
45%
Tank readings on board
C · Flow meters
37%
Meters on the fuel lines to engines and boilers
D · Direct measurement
0%
CO₂ measured in the exhaust

Most common combinations

  • A31%
  • B29%
  • C20%
  • B + C11%
  • A + C4%
  • A + B + C2%
  • A + B2%

Share of 1,450 emission reports that name a method; a report can name several.

Notes

  • Medians and rankings use 1,409 full-year reports with fuel; part-year and zero-fuel reports count towards totals only.
  • THETIS reports time at sea on EU-scope voyages only, not time in port. CO₂ at berth is the closest measure of port activity it publishes.
  • Speed and distance are derived from the published ratios; THETIS has no distance column.