Part of the industrial process used to convert wood chips into pulp for use in paper and other cellulosic products, is the kraft pulping process. During the pulping process the wood components are released from the wood or converted into the useful by-products of methanol, turpentine, and tall oil. This module describes where the by-products come from, how they are recovered, and the equipment used to recover them.
•Identify the major by-products of the kraft pulping process and how they are used
•Describe where the by-products are produced in the kraft process
•Identify and describe the main components and flows of a methanol stripper
•Describe the principle of operation of the methanol stripper
•Describe the main components and flows in a turpentine system
•Describe the principle of operation of a turpentine system
•Define the safety concerns in the turpentine and methanol systems
•Identify and describe the main components and flows of a soap collection system
•Describe how the soap collection system operates
•Identify and describe the main components and flows of a tall oil system
•Describe how the tall oil system operates
