Greenhouse Gas Abatement Technology

GHG emission mitigation measures

By conservation of energyImprove propulsion efficiency. Use cleaner fuel with less GHG emission.Improve equipment and ship efficiency.Improve operations efficiency to reduce GHG.

By abatement technologyCCS Carbon Capture and Storage methodCSNOx abatement technologyCarbon fixation by chemical compound method

Practical Constraints in Shipping Industries

•Exhaust gas contains SOx, NOx, CO2, PM and other pollutants.

•Requirement to remove SOx.

•Very limited space available onboard.

•Operation limitation.

First commercially viable GHG abatement technology

Removes

3 gases in one go

Common technologies available in market

SO2 NOx CO2

CSNOx ✔ ✔ ✔

Lime / NaOHscrubbing

✔ ✘ ✘

SeawaterScrubbing

✔ ✘ ✘

SCR ✘ ✔ ✘

CCS ✘ ✘ ✔

Uses Ultra Low Frequency electrolysis process and water as media to remove SOx NOx and CO2

Environmental Impact

•End products are either neutral or beneficial to environment

•No disposal or storage problem

•No secondary pollution

•Open loop system when seawater or river water is readily available.

•Close loop for areas where water supply is limited.

The CSNOx systems

The CSNOx Open Loop System

CSNOx TREATED seawater

BeforeCSNOx

After CSNOx RemovalEfficiency

SO2 (ppm) 669.3 47.4 92.9%NOx (ppm) 158.5 28.2 82.2%

CO2 (%) 5.16 1.32 74.4%

• Vessel : Coral Sea

• Owner : Tanker Pacific

• Test date : December 2008

• Exhaust Source : 60 Ton/hr Boiler

* Fuel combustion @ 1.25 ton/per hour.* Fuel sulphur content @ 2.5 ~ 3%

60 tons Boiler flue gas test results

Exhaust gas from 11 MW main engine

CSNOx components

Gas abatement result at 33 ton/hr approx gas load

Approx removal efficiency

CO2 – 77%SOx – 99%

CSNOxIMO limit

MEPC 184(59)

pH 6.7 > 6.5

PAH < 1 ppb < 50 ppb

Nitrates< 0.066

ppm< 60 ppm

Turbidity ∆ 8.7 NTU < ∆25 NTU

Wash Water quality

* Alkalinity : Inlet 122 ppm Outlet 142 ppm

Gas abatement result at 70 ton/hr approx. gas load

Approx removal efficiency

CO2 – 46%SOx – 100%

CSNOxIMO limit

MEPC 184(59)

pH 7.02 > 6.5

PAH 3.85 ppb < 50 ppb

Nitrates 0.39 ppm < 60 ppm

Turbidity ∆ 2.14 NTU < ∆25 NTU

Wash Water quality

Typical Max Gas Load vs Engine MW

Model ( 2 stroke slow

speed engine)

Capacity

MW

Max Exhaust gas

Load Ton/hr

Sulzer 1x4RLB76 8 72

MAN B&W S60MC 11 106

MAN B&W 7S60MC 16 140Engine Load Range MW

Gas L

oad T

on /hr

Gas abatement system is designed based on Gas Load not Engine Load

Typical Gas Load vs

engine load range is

NON LINEAR

The CSNOx Close Loop System

Gas abatement result for Close Loop System using one module each for stage 1 and stage 2

Table 1 Exhaust gas compositions from three CSNOx demonstration runsData obtained at a) 24 minutes, b) 27 minutes and c) 14 minutes after reaching steady state

Testing DateCO2

(%)

NOx

(%)

SO2

(%)

13th Aug 2010 28 26 100

25th Aug 2010 27 30 100

Stage 1SOx abator

Stage 2NOx + CO2abator

CO2 removal???????

Effect of flue gas conditions on CSNOx

•Suitable for high SOx, NOx and CO2 content gas.

•No high pressure needed. Operate at atmospheric pressure.

Types of Ecospec emission abatement systems

Awards

“ Technology of the year award ” at Green Ship Technology Conference 2010 in Denmark

“ Environmental Protection Award ” at the Seatrade Asia award 2009

Thank You !