Preliminary proposal for Waste to Energy Project
(500 TPD Municipal Solid Waste to Power)
This is a preliminary proposal to set up a waste to energy project based
on our patented technology.
WHO WE ARE.
We are pioneers in this technology having obtained the first patent in
the year 1989. Then we have been upgrading technology continuously
with new features. Our second patent was granted in the year2000. The
third and current patent we hold now was granted in the year 2008.
The first commercial plant we set up and commissioned in Malaysia in
2009 was rated as ‘TOP Plant of the world’ in WtE class by ‘POWER’, the
leading magazine in the power sector published from U S A and
featured a cover story in their Dec 2010 special issue on Renewable
Energy.
‘Electric Power’, the Power Industry Association of U S A invited and
honoured us with an award in their annual conference held in May 2011
in Rosemont, (Illinois)
Several state of the art new features have been included in the
technology now for achieving best performance.
An aerial view of the Waste to Energy plant in Malaysia
The process in brief.
Municipal solid waste( MSW) is received processed in steps to
segregate the combustibles and reduce moisture content by drying.
Then after removing metals & other inerts subjected to shredding
process to make RDF, a homogenised matrix suitable to use as fuel in
boiler furnace to achieve good efficient combustion.
Pollution Prevention is the underlying basis for the next steam and
power generation process.
Boiler furnace is specially designed to facilitate two part combustion to
reduce formation of Nitogen Oxides (NOx) a pollutant. Furnace temp &
gas residence time in the furnace is controlled to disintegrate Dioxin,
another deadly pollutant that forms during combustion. Injection of
urea in the flue gas stream further reduces NOx by disintegration.
Chlorine and Sulphur compounds in the waste generate acidic fumes.
A host of heavy metals present in MSW like mercury, cadmium, arsenic,
zinc, lead, etc are vapourised in the furnace and migrate with flue gas
towards chimney passing through the pollution abatement system of
the boiler consisting of a dust separator, dry scrubber, bag filter and
wet scrubber.
Dust is trapped & removed in dust separator. Acid fumes are
neutralised heavy metals are adsorbed & removed. The cleansed gas
leaves for the chimney. Here the flue gas is drawn and subjected to a
process of carbon sequestration to remove carbon dioxide before
exiting the chimney. Thus cleanest emission as per international
standards is achieved.
The Plant Operation.
Waste is received in the waste receiving pit. Leachate is allowed to drip
to bottom channel leading to effluent treatment plant where it is
treated, recycling the treated water to plant for washing purposes.
Waste is then fed in to Rotary Screen after primary shredding. Here the
wet organics are separated and sent to special drying system for
moisture reduction before joining the main stream drying line. The bulk
of the waste of middle size is segregated and sent to the main drying
system for moisture reduction. The balance large size species, mainly
plastics newspapers cardboard etc. are sent for sorting, packing and
sale as by product.
In the Drying section waste is fed in to a hot air stream in Rotary Dryer
for moisture reduction. The hot air is generated by steam coil heaters
using extraction steam from turbo generator thus increasing system
thermal efficiency.
After drying, Metals are removed by magnetic separation and a double
shredding process delivers RDF as a homogenised matrix sent to the
boiler house for steam generation.
Operational mode
The RDF plant will operate for 16 Hrs a day and produce enough RDF
for operation of power plant for 24 Hrs a day thus allowing time for
cleaning and daily maintenance of RDF plant.
Boiler needs a mandatory stoppage for a few days in a year for cleaning
and licence renewal resulting in plant stoppage. In order to facilitate
plant operation all through 365 days of the year, we have adopted two
boiler system and keep plant operation without stoppage maximising
annual power output for sale.
Plant Performance
The output of fuel RDF, steam & power greatly depends on the
composition of MSW, moisture content etc. Electricity output depends
basically on these factors besides other local conditions. At this stage,
with limited knowledge of these factors we give here the performance
projections as envisaged, as guideline.
Daily receipt of MSW at plant site
500 Tons.
Average moisture content of MSW
52 %
Out of this wet organics segregated
125 tons
Moisture content of wet organics
62 %
Expected RDF output at 25 % moisture
235 tons
Steam generation capacity MCR
50 TPH
Power generation capacity MCR
10 Mw Hr
Operation performance Envisaged
With tipping fee at 28 US $ / ton waste delivered at site and Electricity
Tariff at 0.08 US $ / Kwhr power supplied to Grid & Revenue from By
products sale, may generate an operating surplus over 50 %.
Once DPR (Detailed Project Report) is prepared, more precise financial
performance will be prepared.
Capital Investment in US $
Civil construction works
10.0 Million
(including buildings & all other amenities)
RDF Plant two processing Lines
20.0 Million
(including Rotary Screens, Rotary Driers,
Apron Driers, Magnetic Separators, Crane
Feeders, Double Shredders and all other
Auxiliaries)
Power Plant
28 Million
(Including two boiler system, fuel
feeding, pollution abatement system,
ash handling, water treatment, turbo generator, cooling water
system, HT electrical system, power
evacuation system, model carbon sequestration
system and all other auxiliaries )
Technology acquisition
Patent Licensing cost @7.5%of total assets)
Technical services cost (for 2 years)
3 Million
2 Million
(for our technical oversight services till commissioning)
Total
USD 63.00 Million
Project Implementation
Promoter forms project company, an SPV (Special Purpose Vehicle)
Patent holder will grant ‘User rights’ of patent to SPV as per Patent
agreement. Then a technical services agreement will be signed between
patent holder’s company and SPV for rendering technical oversight
services through project implementation till commissioning.
Payments
First, User Rights payment will be made to patent holder as per patent
Agreement.
Then, as per Technical Services Agreement payment for mobilisation
will be released. With this the project activities will start.
TimeLine for project construction
Mobilisation of Design Set up.
MSW supply, land leasehold agreements initial permission for project
construction by environment ministry, patent & technical services
agreements, any other statutory clearances must all be in place.
Timeline envisaged
3 months.
Mobilisation of project finances leading to financial closure
Firm up Engineering, Procurement, Construction, Commissioning EPCC
Preliminary work on preparation for construction work on land to be
carried out.
TimeLine envisaged
3 months
Plant procurement & installation.
TimeLine envisaged 18 months
Trials and commissioning
Timeline envisaged
6 months
The Technical Services Agreement will spell out the responsibilities of
the SPV management group and the technical services group in getting
the project up to commissioning.
For further details, please contact our representative for Sri Lanka and
Maldives,
Asanka Sri narth Gurusinghe
Chairman / Managing Director
C/o Ayodhya Ventures Worldwide Pte. Ltd.
Voice / Whatsapp/ Viber/ Imo: +94 777319834 / +94 785142137
eMail: ayodhya_ent@yahoo.com.sg
asanka.gurusinghe@gmail.com