Batch Cooking Introduction

SKU: C-633Duration: 28 Minutes Certificate Included

Pay-per-view (PPV) format perfect for individual users.

Get immediate access to this interactive eLearning course online. Must be used within 30 days, expires 48 hours after launch.

Great for in-person classroom training or as an alternative to DVD.

Includes printable documents and Convergence Video Player for Windows systems. Content expires after 1 year.

Ideal for corporate licensing and volume users who also need administrative tracking and reporting on training.

Get this interactive eLearning course into your LMS or learn how you can leverage our LMS to deliver training to your workforce.

Need multiple courses or have lots of users? Just let us know a little more about what you need and we’ll get you some great volume pricing.

 Need help deciding? Compare delivery formats.

Course Details


Training Time: 28 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English

Batch cooking is an industrial chemical process used to convert wood chips to pulp fibers that can be used to make paper and other cellulose fiber-based products. This module provides background on wood fibers and chemical pulping, and then provides specifics about the batch cooking process. It also discusses the impact of several important batch cooking variables on pulp quality.

At the end of this module, you will be able to:

  • Identify the three main components of wood
  • Describe mechanical, chemical, and semichemical types of pulping
  • Describe what happens to wood components during chemical pulping
  • Describe the three process steps in the batch cooking cycle
  • Describe how the batch cooking process is controlled
  • Define "kappa number"
  • Identify the process variables that affect the uniformity of pulp quality in batch cooking
  • Identify safety hazards associated with batch cooking

The following key questions are answered in this module:

What the three primary organic components of wood?
Wood is made up of cellulose, hemicellulose, and lignin.

In a batch digester, what goes into a ""batch""?
Wood chips, cooking liquor and steam are combined in a pressure vessel for each batch, or cook.

At the end of cook, how is a batch digester emptied?
At the end of cook, the pressure of the steam in digester pushes the cooked pulp out of the digester.

What factors affect how well the chips is a digester are cooked?
There are many factors which affect the cooking the chips, among the more important are: the type of wood, the strength and amount of cooking liquor, the rate of temperature increase, the final cook temperature and the time spent at temperature.

When a batch digester is emptied, what happens to blow steam?
The blow steam flows through condensers which recovery some of the energy of the steam and also capture some of the volatile byproducts of the cooking process.

Below is a transcript of the video sample provided for this module:

During the cooking process, gases are released from the chemical reactions occurring within the digester. These gases are continuously vented during cooking to a collection system of condensers and separators. This system recovers the heat and useful pulping byproducts, including turpentine. At the completion of the cooking process, the digester is discharged to a special tank called a blow tank. The blow tank is designed to receive the pulp and capture and recover the tremendous amount of gases and heat that are released during the blow. To discharge the digester, a blow valve at the bottom of the digester opens to release the contents to a blow pipe or blow line. The pressure in the digester pushes the hot pulp and liquor through the blow line to the blow tank.

Use the additional resources and links below to learn more about this topic:

Customer Q&A

Ask a Question

Sorry, we're missing some information

How do I log in to watch a video that I have already paid for?

Easy! Moments after you purchase your pay-per-view (PPV) course, you'll receive an email with login details. Just click the link and log in with your user name and password and you're on your way!

I would like to have some of my employees take 5 of your driving related courses, how can i set this up?

We're in the process of making bulk purchases and purchases for multiple users easier. But for now, you can order multiple courses and just let us know who you'd like to assign courses to. With an email for each user, we can set up their training plans and make sure everyone gets the eLearning assignments they need.

How can I get your paper-making courses for free?

Well, we can't blame you for asking... And while we're a for-profit company, there are situations with students and certain educational organizations where we can help out with a selection of eLearning. However, our online courses are extremely economical. And our paper industry courses are in very high demand. So, without knowing more about your situation, we think you'll get loads of value from the $39 you'll spend on any of our premium courses.

Do you have eLearning in Portuguese?

Yes, we do! And in addition to primary English narration, we produce many courses in a growing number of languages, including Spanish, Chinese, Dutch, German, Italian, Japanese, Korean, Polish, Russian, Tamil, and Thai.

I'm unemployed, but I really like your eLearning. Do I get a certificate when I complete a course?

Yes! All of our courses allow you to print a completion certficate upon successfully passing the integrated test at the end of eLearning. In the future, we'll have badges for you to use in your LinkedIn profiles.
Added to Cart! Click here to view your cart.