Dry EGCSDry EGCS®

is a trademarktrademark of Couple Systems

1. For the Reduction of Sulphur (99% SOx), Particles (98% PM)

2. In combination with SCR (removal of 80% NOx) easily possible

DryEGCS® Process

Dry Exhaust Gas Cleaning System
Dry EGCSDry EGCS® About us is a trademarktrademark of Couple Systems

Overview

• Introduction

• Primary Actions vs. Secondary Actions

• The DryEGCS-Process

• Summary
Dry EGCSDry EGCS®

is a trademarktrademark of Couple Systems

Couple Systems

– Germany based engineering company with 25 years experience

in the flue gas cleaning industry with all kind of today existing

technologies

– More than 500 installations and commissionings of exhaust gas

cleaning systems at power plants worldwide

About us
Dry EGCSDry EGCS®

is a trademarktrademark of Couple Systems

Primary and Secondary Actions

• In principle there are two strategies available in order to

minimize SOx emissions:

– Reduction of the sulphur content of the fuel

(Primary Action)

– Application of Desulphurization Plants on board

(Secondary Action)
Dry EGCSDry EGCS®

is a trademarktrademark of Couple Systems

Primary Action

• Lowering the sulphur content of the fuel from 0,5 % to 0,1 %

– Oil industry declares costs in excess of 150 Bill $

– Time frame app. 10 to 25 years

– Price increase and supply shortage as a consecquence

– Increase of CO2-Emission app. 10 %

Does it makes sense to invest in a low-value product?
Dry EGCSDry EGCS®

is a trademarktrademark of Couple Systems

Secondary Action

• Installation of an Exhaust Gas Cleaning System

• Dry Scrubber (Chemisorption with Ca(OH)2(lime) or NaHCO3

(sodium bicarbonate)
Dry EGCSDry EGCS® Flow ChartFlow Chart is a trademarktrademark of Couple Systems

DryEGCS ® - Dry Exhaust Gas Cleaning system (SOx removal)

optional combination with SCR (NOx removal)
Dry EGCSDry EGCS® Flow ChartFlow Chart is a trademarktrademark of Couple Systems
Dry EGCSDry EGCS® Flow ChartFlow Chart is a trademarktrademark of Couple Systems

DryEGCS ® - Dry Exhaust Gas Cleaning system (SOx removal)

optional combination with SCR (NOx removal)
Dry EGCSDry EGCS® Flow ChartFlow Chart is a trademarktrademark of Couple Systems

DryEGCS ® - Dry Exhaust Gas Cleaning system (SOx removal)

optional combination with SCR (NOx removal)
Dry EGCSDry EGCS® Flow ChartFlow Chart is a trademarktrademark of Couple Systems

DryEGCS ® - Dry Exhaust Gas Cleaning system (SOx removal)

optional combination with SCR (NOx removal)
Dry EGCSDry EGCS®

is a trademarktrademark of Couple Systems

Calcium Hydroxide Granulate

• The calcium hydroxide is utilized in the

form of a granulate or pellets

(spherical form)

• Diameter 2 mm – 8 mm

• Bulk density 800 kg/m3

• BET-Surface 4 mm = 18 – 20 m2/g

AbsorbentAbsorbent MaterialMaterial
Dry EGCSDry EGCS®

is a trademarktrademark of Couple Systems

• Proven processes for the desulphurization of exhaust

gases are based on absorptive processes

• Absortive materials are: calcium carbonate [CaCO3],

burnt lime [CaO], hydrated lime [Ca(OH)2]

Dry DesulphurizationDesulphurization ProcessesProcesses
Dry EGCSDry EGCS®

is a trademarktrademark of Couple Systems

• The DryEGCS® Process is based on a technology known

in land-based applications as “Chemisorption”

• Calcium hydroxide reacts with SO2and SO3

Ca(OH)2 + SO2 → CaSO3 + H2O

Ca(OH)2 + SO2 + 1⁄2 O2 → CaSO4 + H2O

Ca(OH)2 + SO3 + H2O → CaSO4 + 2 H2O

The DryEGCS® Process

Calcium sulfate (CaSO4) = G Y P S U M
Dry EGCSDry EGCS®

is a trademarktrademark of Couple Systems

• Capacity of the granulate is used max 60% in

temperature range of 410°F to 824 °F (210°C to 440 °C)

• Rest of capacity will be used by the power plant industry

• Steel industry

• Cement industry

• Waste incinerators

• Use as a Fertilizer

Reusable, exploitable residues and cost free disposal!

The DryEGCS®- Solids disposaldisposal
Dry EGCSDry EGCS® LogisticLogistic of GranulateGranulate - Supply is a trademarktrademark of Couple Systems
Dry EGCSDry EGCS® LogisticLogistic of GranulateGranulate - RecyclingRecycling is a trademarktrademark of Couple Systems
Dry EGCSDry EGCS® SelectedSelected CatalyticCatalytic ReductionReduction - DeNOx is a trademarktrademark of Couple Systems
Dry EGCSDry EGCS® The DryEGCS is a trademarktrademark of Couple Systems

® Process

DryEGCS®

Pilot-Installation on

MS Timbus

MAK 3,6 MW

at

October 26, 2009
Dry EGCSDry EGCS® Design MSDesign MS Timbus is a trademarktrademark of Couple Systems
Dry EGCSDry EGCS® Design ProposalProposal is a trademarktrademark of Couple Systems

Screw Conveyor

Granulate Silo

Reactor

Discharge System

Fan
Dry EGCSDry EGCS® Design MSDesign MS Timbus is a trademarktrademark of Couple Systems
Dry EGCSDry EGCS® Design MSDesign MS Timbus is a trademarktrademark of Couple Systems
Dry EGCSDry EGCS® Test results by Germanischer LloydGermanischer Lloyd is a trademarktrademark of Couple Systems

1, 0 % Sulphur Fuel Oil

0,1 % Sulphur Fuel Oil

1,20 % 1,26 %

1,55 %

1,78 %
Dry EGCSDry EGCS®

is a trademarktrademark of Couple Systems

GL certified since April 27, 2010
Dry EGCSDry EGCS® Summary is a trademarktrademark of Couple Systems

1. Robust system and low maintenance cost

2. Long-term proven system

3. No corrosion of donwstream installed exhaust gas components

4. No aerosol formation

5. Exploitable residues

6. Installation of a small sized SCR without reheating

7. Combined particle precepitation

8. No examination of the sewage quality required

9. Very low energy consumption

10. No transmission of pollutants from the atmosphere into the

hydrosphere but total removal from the biosphere!
Dry EGCSDry EGCS®

is a trademarktrademark of Couple Systems

Thank you very much for your

attention!