AB | Case History
AB FOR CAIEIRAS
THE GREATEST POWER PLANT IN THE WORLD WITH GE JENBACHER ENGINES FUELLED ON LANDFILL BIOGAS 21 plants fuelled on landfill biogas in Brazil: the most important project ever realized in the landfill sector
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URBAN WASTE TURNED INTO ELECTRICAL POWER ≤ Enhancing landfill biogas through highly efficient production of electricity, is in most cases the best choice in both technical and financial for these
6 ECOMAX® PLANTS AND THE LOGISTICS STRUCTURE AT MINAS DO LEÃO
types of facilities. With a calorific value averaging between 3.5 and 5.0 kWh/Nm3, the landfill gas is a
The Minas do Leão landfill and related technologies
good fuel for internal combustion engines and can
for the use of biogas mainly exploit the urban
therefore be used effectively for fuelling the power
waste from the city of Porto Alegre, amounting
plants.
to more than 3,500 tons daily. At full capacity
PARTNERSHIP BETWEEN SOLVÍ AND AB
this site generates 8.5 megawatts of electricity, serving the energy needs of more than 200,000 people. Heart of the system are the 6 Ecomax® 14
Solví, the leading ecological waste treatment
Landfill Gas plants of 1,426kWe, with a total power
company in Brazil, together with AB has developed
output of 8,556 kWe. Even for this important job
an ambitious programme for the landfill sector
order, the Ecomax® modular package distributed
development, based on the construction of two
generation solution has confirmed the value of its
power generation sites fuelled on landfill biogas,
features and the advantages that make it a unique
respectively in Minas do Leão, in the Rio Grande do
engineering product in the world, designed and
Sul region, and in Caieiras, in the São Paulo region.
developed entirely by AB.
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The Solví Group consists of companies that currently operate
in
five
interconnected
and
synergistic
segments: the collection and disposal of urban waste, industrial plants, health technologies, energy recovery and engineering. All the Group companies operate based on a shared philosophy and action model aimed at the population’s welfare and the promotion of harmonious coexistence between the environment and the community. Solví operates in the collection and disposal of waste throughout Brazil (in 171 cities) as well as in 18 cities in Peru, Bolivia and Argentina. In addition, Solví has also established a power generation site at the landfill in Salvador, which is already operational and whose maintenance is performed by AB through its dedicated company AB Service.
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21 ECOMAX PLANTS
®
IN CAIEIRAS
≤
Caieiras, in the Sao Paulo region, is the largest landfill
voltage public grid.
biogas fuelled power generation site in the world. The
An increase up to a maximum of 36 modules is planned
landfill receives 10-12 thousand tons of waste per day, and
for the future in this site. In this regard, the President of
serves 13 million people.
AB, Angelo Baronchelli, said: “I am particularly proud
The biogas treatment system comprises 3 lines of 7,500
of the great value that these systems bring to Brazil, its
m3 each, with biogas dehumidification at 5 degrees and
environment and its population, and I am proud to have
siloxane treatment with activated carbon.
been able to transfer this great country, and the world,
This site includes 21 Ecomax 14 Landfill Gas plants of
our experience and Italian know-how in a sector, that of
1,407 kWe, with a total capacity of 29,547 kWe, which work
energy efficiency, which is so important both for economic
simultaneously. The electricity produced is sold to the high
development and for our planet’s sustainable future.”
®
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GENERAL FEATURES OF THE PLANT Installed modules Installed power Biogas consumption Time for installation Opening ceremony
21 Ecomax® 14 BIO 29,55 MW 18.600 Nm3/h 5 months August 2016
BIOGAS TREATMENT PLANT Total capacity Dehumidifying system Biogas treatment system Biogas compression system
21,000 Nmc/h (with predisposition for further 7,000 Nmc/h) 3*175kW chillers (with predisposition for further 1*175kW) Active charcoal filter 3 (+ 1 backup) booster x 7,000 Nmc/h, 200 mbar
PLANT LAYOUT
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