Paper Technology International 2020 - Journal - Page 104

PAPERTECHNOLOGYINTERNATIONAL
Why ANDRITZ?
ANDRITZ was chosen as the supplier for the sulfuric acid
plant for a number of reasons says Razzolini, “We have partnered
with ANDRITZ for many years at Klabin, developing a lot of projects,
initiatives, and technologies. Importantly, the company really knows
how to operate in Brazil and has shown reliability in the delivery of
many projects, including the very latest ones.
“One key feature we recognize about ANDRITZ is the
amount of effort it puts in, looking for the problems, challenges, and
solutions that we have as operators at the mill sites. The sulfuric
acid plant is a prime example, and the company has delivered an
excellent package, with the proven technology from Haldor Topsoe,
as well as a deep understanding of how we operate in our mills.”
The Sulfuric Acid Plant is Due to Start Up Early 2022
Razzolini concludes, “When Klabin embarks on a
new, pioneering project such as this, we do a lot of thorough
investigations and assessments and in this case we have had
excellent support and answers from ANDRITZ and we are confident
we will have yet another successful result.
“The introduction of the sulfuric acid plant at the Ortigueira
mill is a perfect example of how technology is enabling us at Klabin
to achieve our goals when it comes to sustainability. It is also a step
closer to achieving our goals for the 21st century, which is to close
loops and reduce environmental impact across all our operations,
at the same time as provide valuable employment to local people.
At Klabin we are firm believers that the pulp and paper
industries are on the right side of the equation when it comes to
solving the world’s current environmental challenges and through
our renewable and recyclable products we are providers of
solutions to these challenges.”
ANDRITZ Scope of Supply for PUMA II
For the WSA sulfuric acid plant, ANDRITZ has supplied technologies on an EPCC basis for elemental sulfur handling, sulfur and
Concentrated Non-Condensable Gases (CNCG) combustion to form sulfur dioxide (SO2), sulfur dioxide conversion into concentrated (98%
by wt.) sulfuric acid, and a flue gas handling system. The sulfuric acid plant uses wet-gas sulfuric acid (WSA) technology developed by
Haldor Topsoe.
As well as the WSA sulfuric acid plant, ANDRITZ has also supplied major pulp production technology and process equipment to the
Puma II project, including:
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A complete Wood Processing Plant using the same and proven technology as in the existing Puma I line ANDRITZ woodyard; including
two eucalyptus debarking and chipping lines, chip storage with 360° stacker-reclaimer, chip screening, bark handling with ANDRITZ
BioCrushers, bark storage, and purchased biomass receiving system for the new power boiler.
An ANDRITZ HERB Recovery Boiler for combustion capacity of 3,300 tds/d with high steam parameters of 103 bar(a) and 502 °C
for maximizing the power generation. The HERB recovery boiler features energy efficient flue gas cooling and feed water preheating
technology to maximize the steam production for power generation.
A complete White Liquor Plant, consisting of the same technology as the mill’s existing Puma I line ANDRITZ white liquor plant. The
new recaustizing plant has a capacity of 5,000 m3/d and includes efficient green liquor filtration with LimeGreen filters – producing clean
green liquor and minimizing waste to landfill.
A complete biomass gasification plant and a new biomass handling line. The scope of supply includes a 51 MW gasification plant, a belt
dryer, a multi-fuel lime kiln burner, and biomass handling equipment with auxiliaries. By replacing 100% of the heavy fuel oil currently
burned in one of the mill’s lime kilns, the ANDRITZ gasification plant will significantly reduce the mill’s carbon footprint.
A Power Boiler based on ANDRITZ EcoFluid Bubbling Fluidized Bed (BFB) technology. The scope of supply includes a biomass-fired
boiler with flue gas cleaning and other auxiliary equipment. The new Power Boiler is integrated together with the Recovery Boiler to a
“Boiler Island” and some of the auxiliary equipment is shared between the two boilers.

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