PPT - Introduction to Pulp and Paper Industry | Chemical Technology - Chemical Engineering PDF Download

 Page 1


Pulp and paper industry
Page 2


Pulp and paper industry
Introduction
l The pulp and paper industry converts wood or
recycled fibre into pulp and primary forms of
paper.
l In the 1800s, there was a shift away from using
cotton rags for paper production. Wood became
the most important source of fiber.
l First mechanical and then chemical methods
have been developed to produce pulp from
wood.
Page 3


Pulp and paper industry
Introduction
l The pulp and paper industry converts wood or
recycled fibre into pulp and primary forms of
paper.
l In the 1800s, there was a shift away from using
cotton rags for paper production. Wood became
the most important source of fiber.
l First mechanical and then chemical methods
have been developed to produce pulp from
wood.
Pulp and paper mills
l Pulp mills separate the fibres of wood or from
other materials, such as rags, wastepaper or
straw in order to create pulp.
l Paper mills primarily are engaged in
manufacturing paper from wood pulp and other
fibre pulp, and may also manufacture converted
paper products.
Page 4


Pulp and paper industry
Introduction
l The pulp and paper industry converts wood or
recycled fibre into pulp and primary forms of
paper.
l In the 1800s, there was a shift away from using
cotton rags for paper production. Wood became
the most important source of fiber.
l First mechanical and then chemical methods
have been developed to produce pulp from
wood.
Pulp and paper mills
l Pulp mills separate the fibres of wood or from
other materials, such as rags, wastepaper or
straw in order to create pulp.
l Paper mills primarily are engaged in
manufacturing paper from wood pulp and other
fibre pulp, and may also manufacture converted
paper products.
Production process
The production process can be divided into 7
sub-processes:
l raw materials processes;
l wood-yard;
l fibre line;
l chemical recovery;
l bleaching;
l paper production;
l products and recycling.
Page 5


Pulp and paper industry
Introduction
l The pulp and paper industry converts wood or
recycled fibre into pulp and primary forms of
paper.
l In the 1800s, there was a shift away from using
cotton rags for paper production. Wood became
the most important source of fiber.
l First mechanical and then chemical methods
have been developed to produce pulp from
wood.
Pulp and paper mills
l Pulp mills separate the fibres of wood or from
other materials, such as rags, wastepaper or
straw in order to create pulp.
l Paper mills primarily are engaged in
manufacturing paper from wood pulp and other
fibre pulp, and may also manufacture converted
paper products.
Production process
The production process can be divided into 7
sub-processes:
l raw materials processes;
l wood-yard;
l fibre line;
l chemical recovery;
l bleaching;
l paper production;
l products and recycling.
Simplified flow diagram of
integrated mill