Fibria’s Pulp Production Process Video Lecture | Chemical Technology - Chemical Engineering

notebooks toilet paper cardboard
packaging and many other products that
are part of our daily lives come from
the same feedstock Pope how about
learning each step of the Pope
manufacturing process the pulp mill
receives the timber in Logs with and
without bark the bark is separated from
the wood and taken to a biomass boiler
that generates steam which in turn
generates electricity by means of two
turbines the log is first transformed
into wood chips after being turned into
wood chips the material will be cooked
in the chip digester of cooking liquor
is added to the process which is
designed to separate the pulp fibers by
dissolving lignin after cooking the pulp
fibers are routed to pre delignification
and bleaching where the resulting liquor
which is called black liquor and
contains the salt lignin goes to the
chemical recovery process
it is worthy of note that the black
liquor is sent to the chemical recovery
process and burned in a boiler to
generate steam and electricity to make
the unit's self sustained in energy in
addition to providing power to other
neighboring industrial operations and
selling enough power to the National
Grid to supply a city of 96 thousand
inhabitants 99 percent of the liquor
returns to the cooking process after
going through the cooking process the
pulp goes on to the purification pre
bleaching and bleaching stages in the
bleaching process we use chemicals to
bleach the material the chemicals act on
the molecular structure of the lignin
modifying and discolouring the pulp all
chemicals that are used are highly
efficient and environmentally friendly
through the elemental chlorine free or
ECF process the operation takes place
with a sequence of reactors and washers
that use water flowing in counter
current allowing for smart water
consumption pursuant with the best
global operation standards once bleached
the material goes on to the drying and
baleen stages the white mask
purification procedure is divided into
five stages during which the impurities
that come with the fiber are separated
from the pulp sheet formation table the
pope is transported with a large amount
of water which starts being removed on
the formation table where the sheet
starts gaining shape after formed the
sheet goes through a press section which
continues removing the water it then
runs through the dryer which in contact
with hot air removes water from the
sheet until reaching 90% dry content at
the exit to the cutter
at the cutter the sheet is cut into pulp
bales and then goes on to the packing
lines the packing section comprises
three lines in which the bales are
compressed and packed with the pulp
itself they are stacked in two thousand
kilo units stamped with the company's
identification and then transported to
the industrial logistics area to be
distributed and marketed and finally our
pulp is certified according to the chain
of custody ensuring that the feedstock
is produced sustainably working while
investing in society and respecting the
environment this is what brings a
satisfaction and recognition
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