POWER August 2020 - 17

FOCUS ON O&M
Clean Air Act requirements and varying
state laws. The company also ensures
the destruction of volatile compounds,
preventing harmful air pollutants from
entering the atmosphere.
As a whole, the pellet industry is still
3. A tray of sustainably sourced wood pellets
that will be exported to power and heat
generators in the UK, Europe, and Japan.
Courtesy: Enviva
havior and energy content. Because pellet
processing dies can take up to 14 weeks
to design and develop, there is little room
for error in the production process. To further
ensure excellence in safety, sustainability,
compliance, quality, reliability, and
productivity, Enviva continuously reviews
and revises its production processes and
standards to create energy-dense, lowmoisture,
and uniformly sized wood fuel
that provides efficient, reliable combustion
for customers.
Air Quality and Carbon Emission
Guidelines
Enviva pellet manufacturing plants
are designed and operated to meet or
exceed air quality permitting requirements.
To ensure that air standards are
met, Enviva utilizes technology, best engineering
practices, and state-of-the-art
air emission controls to minimize emissions
from its manufacturing process.
The company builds and operates plants
(Figure 4) that are the most " controlled "
wood pellet plants in the world, ensuring
compliance with both stringent
fairly young and the air emission data
sets for equipment and processes are
still evolving. For this reason, Enviva has
deployed a large amount of investment
and resources to better understand
emissions associated throughout the
manufacturing process, and evaluate
various control scenarios and settings to
remain compliant, as well as minimize
the overall environmental impact on the
local communities in which it operates.
To further reduce the carbon footprint
associated with the wood pellet supply
chain, Enviva's facilities are strategically
located in areas that minimize transportation
from forest to plant to port. For example,
all Enviva plants operate in the most
attractive wood fiber regions in the U.S.,
in addition to being located near deep-water
marine storage terminals for shipping.
Enviva's customers are power and
heat utility companies in the UK, Japan,
and other countries primarily in the EU,
Asia, and the Caribbean. To transport
its product to these countries, Enviva
has identified the most energy-efficient
mode of transportation with the least
environmental impact, in this case large
bulk cargo ships (Figure 5). By producing
pellets and holding them, by the metric
ton, in large storage domes next to ports,
Enviva reduces the number of trips it
takes to transport materials across the
ocean. Enviva's low " to-port " transportation
costs were designed to maximize
cost-effectiveness and efficiency while
SAVE
VALVE
OPERATION
Electric actuators for all types
of industrial valves
Reliable and long-term service.
AUMA offers a comprehensive
portfolio.
Q
Customised solutions thanks
to the modular scheme
Q Simple power supply
Q Low operating costs
Q
Integration into all
conventional distributed
control systems
Q Service worldwide
Discover our solutions for
the power plant industry
www.auma.com
4. A group of Enviva associates overlook the company's sustainable wood pellet processing
plant in Cottondale, Florida. The company utilizes technology, best engineering practices, and
state-of-the-art air emission controls to minimize emissions from its manufacturing process.
Courtesy: Enviva
August 2020 | POWER
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POWER August 2020

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