Innovation and Sustainability: new systems to reduce exhaust emissions

Transcription

1 Innovation and Sustainability: new systems to reduce exhaust emissions Naples, 15th October 2015 SHIPPING & the LAW GUIDO G. CECCHERELLI MAURIZIO ARCHETTI Managing Director & VP Business Development President Co-founder & Chief Scientist

2 AIR QUALITY IS OUR MISSION ECOSPRAY develops, designs and markets innovative technologies and solutions that are applied in cooling down hot gases and/or in the removal of regulated pollutants from the exhaust gases of power stations, marine engines, cement and steel plants, chemical plants, refineries and waste incineration. Our systems revolve around : DeNOx (SCR / SNCR) DeSOx and ACID GAS REMOVAL GAS COOLING and FOGGING PARTICULATE and SOOT REMOVAL Temperature Filtration) BIOGAS CLEANING and UPGRADING (Catalytic and/or High

3 SYSTEMS FOR THE MARINE APPLICATIONS In the marine industry, Ecospray proposes ECO-EGC, a proprietary multi-pollution cleaning system, which allows shipowners to fully comply with IMO regulations in ECA s. ECO-EGCTM systems comprise the pre-treatment of the exhaust gas through a patented Catalytic Dry Filter ECO-CDFTM or ECODOCTM (Diesel Oxidative Catalyst reactor) installed downstream of the turbocharger. Further to the filter, the EGC system is completed with a DeSOx sea water tower specifically designed to remove SO2 with performance > 99%. ECO-EGCTM can also be completed with ECO-NOx, a proprietary SCR system to reduce NOx emission in compliance with IMO Tier III regulation.

4 EXHAUST GAS CLEANING SYSTEM - OPEN LOOP FUNNEL SELFCLEANING SEAWATER FILTER BUFFERING SEA CHEST PUMP (PH INCREASE, IMO REQUIREMENT) DeSOx TOWER SEAWATER PUMP TO OVERBOARD Water treatment CDF/DOC FILTER STATIC MIXER SEA CHEST TURBOCHARGER

5 EXHAUST GAS CLEANING SYSTEM - HYBRID FUNNEL CAUSTIC TANK REAGENT HEAT EXCHANGER DeSOx TOWER MAKE UP WATER COOLING PUMP RECIRCULATION TANK MAIN PUMP WATER TREATMENT SLUDGE TANK SEAWATER FILTER TURBOCHARGER SEA CHEST HOLDING TANK STATIC MIXER OVERBOARD

6 ECOSPRAY REFERENCES ECO-EGCTM FLAG TOTAL INSTALLED SYSTEMS APPROVED RETROFIT 30 SHIPS 94 EGCS 5 SHIPS NEW BUILD 13 EGCS + (2 DeNOx) ON ORDER 23 SHIPS 51 EGCS 53 SHIPS 145 EGCS 12 SHIPS 24 EGCS 1 SHIPS 2 EGCS 6 SHIPS 15 EGCS 2 SHIPS 4 EGCS 80% OF THE INSTALLATIONS/ORDERS ARE CRUISE SHIPS, 15% FERRIES AND 5% TANKERS

7 FILTRO CATALITICO - CATALIZZATORE CATALYTIC FILTER OXIDATIVE OSSIDATIVO CATALYST CDF or DOC ensures the removal at the funnel outlet of: SOOT, ASHES and HEAVY METALS (with CDF only) UNBURNED HYDROCARBONS and PAH (with DOC or CDF) CARBON MONOXIDE (with DOC or CDF) Advantages: - Reduction of the white plume at the funnel - Reduction of the black smoke when the engines start - Removal of NO2 (very low level of nitrates in the water discharge) - Less cleaning of the economizer

8 ECOSPRAY OPEN LOOP (ECO-EGCTM) WITH CATALYTIC EXHAUST GAS PRE-TREATMENT (DOC or CDF) * CONVENTIONAL CLOSED LOOP or MGO OPERATION HxCy PAH * DIESEL OXYDATIVE CATALYST Reactor or CATALYTIC DRY FILTER SOOT

9 DISCHARGE WATER QUALITY: TYPICAL SAMPLE ; LEFT: sample from DeSOx Tower outlet (before dilution) RIGHT: sample from a drinking fountain

10 CATALYTIC FILTER OXIDATIVE CATALYST Catalytic filter Catalytic reactor 10

11 CATALYTIC FILTER Ref. Queen Victoria 8.6MW Diesel Engine - HFO fuel oil

12 DeNOx SCR IN DIESEL MARINE ENGINES 4 STROKE ENGINES: DeNOx SCR reactor can be installed up-stream the economizer to be used at the higher gas temperature possible (minimum 330 C) 2 STROKE ENGINES: In this case the gas temperature is usually much lower than 330 C and ABS condensation can easily occur on the catalyst. Therefore, the SCR reactor should be installed before the turbocharger where the gas temperature is above 380 C. Of course, turbocharger operation (surge or turbo lag) should be considered for this specific design, as well as also the reactor designed for a relatively high pressure. SCR REACTOR TEMPERATURE = 400 C PRESSURE 2-3 bar UREA INJECTION SCR REACTOR TEMPERATURE = 350 C PRESSURE Ambient Minimum SCR temperature in Marine Diesel Engine (HFO) UREA INJECTION 320 C 40 ppm SO3 2 stroke engines 4 stroke engines

13 DeNOx SCR REACTOR MARINE DIESEL ENGINE TYPICAL UREA CONSUMPTION Diesel Engine 10MW - 85% TYPICAL SCR REACTOR DE 2.5MW OUTPUT Portata volumetrica std, dry Nm3/h, dry Portata massica, wet kg/h Portata massica, dry kg/h, dry O2, dry 10.0% %,dry Standard density, wet Rendimento richiesto SLIP al rendimento richiesto, NH3 dry, x%o2 Consumo AMMONIACA pura Consumo soluzione AMMONIACA kg/h Consumo UREA pura Consumo solutione UREA kg/h Perdite di carico calcolata catalizzatori - mm w.c. Tipo di catalizaztore selezionato Volume catalizzatore selezionato kg/nm3 80.0% 2.5 mg/nm3 rif O2 dry kg/h % kg/h % DNX-x39 DNX-x Litri Process control diagram

14 CATALYTIC FILTER FOR MGO - 1MW DIESEL ENGINE CATALYTIC FILTER + DeNOx integrated solution

15 ECO-CDFTM PATENT OTHER 3 PATENTS ARE PENDING

16 Thank you for the attention ECOSPRAY TECHNOLOGIES S.r.l. VIA CIRCONVALLAZIONE, ALZANO SCRIVIA - AL - ITALY Tel Fax