Podcast
Questions and Answers
What is the purpose of wood chipping in the pulp and paper industry?
What is the purpose of wood chipping in the pulp and paper industry?
- To provide uniform sized wood chips for pulping (correct)
- To refine the wood chips into mechanical pulp
- To extract useful fibers from the bark
- To grind small wood logs into stone pulp
Which part of the wood is most useful for making pulp?
Which part of the wood is most useful for making pulp?
- The roots
- The heartwood and sapwood (correct)
- The bark
- The leaves
What is the purpose of steaming the wood chips prior to refining?
What is the purpose of steaming the wood chips prior to refining?
- To increase the energy needed to make the pulp
- To make the wood chips more uniform in size
- To decrease the total energy needed to make the pulp (correct)
- To increase the damage to the wood fibers
What is the difference between refiner mechanical pulp (RMP) and thermomechanical pulp (TMP)?
What is the difference between refiner mechanical pulp (RMP) and thermomechanical pulp (TMP)?
What type of products are mechanical pulps typically used for?
What type of products are mechanical pulps typically used for?
What is the moisture content of wood chips during the thermomechanical pulp process?
What is the moisture content of wood chips during the thermomechanical pulp process?
What is the main goal of pre-treating wood chips with chemicals in the chemi-thermomechanical pulp process?
What is the main goal of pre-treating wood chips with chemicals in the chemi-thermomechanical pulp process?
What is the main function of digesters in the production of chemical pulp?
What is the main function of digesters in the production of chemical pulp?
What is the primary purpose of recycling paper into deinked pulp (DIP)?
What is the primary purpose of recycling paper into deinked pulp (DIP)?
Which process results in fibers that are hard and rigid due to the fact that lignin is not removed?
Which process results in fibers that are hard and rigid due to the fact that lignin is not removed?