Continuous Cooking Introduction

SKU: C-440Duration: 31 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

Specs

Training Time: 31 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English

In a continuous digester, wood chips are surrounded by alkaline liquor and "cooked" at high temperature for a couple of hours. This cooking process digests, or breaks down, the lignin, or glue, which holds the cellulose fibers together. This course provides an overview of a continuous digester cooking system. It describes the general flow of fiber through the mill, the difference between batch and continuous cooking, the variables that are important to the cooking process, and the major pieces of equipment in the cooking process.

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
  • Differentiate between batch and continuous cooking
  • Describe the major steps involved in cooking
  • Identify the process flow of wood chips and chemicals through the continuous cooking process
  • Recognize and describe the major chip and process variables involved in cooking

The following key questions are answered in this module:

What does "cooking" a wood chip refer to?
Cooking wood involves using a combination of high temperature, pressure and alkaline chemicals to dissolve the lignin, the organic compound that hold the fibers together.

What are some of the advantages of continuous over batch cooking?
Some of the advantages of continuous cooking include reduced space requirements, improved control, and improved energy efficiency.

How are wood chips transferred into a continuous digester?
Chip are transferred to a continuous digester using a special high pressure pocket-type feeder.

How are different process zones established in a continuous digester?
Process zones are established by withdrawing liquor through the screened openings in the side of the digester and re-introducing the liquor through a pipe in the center of the vessel.

What are some of the factors which affect the cooking of wood chips?
Some of the factors that affect the final pulp include the species, moisture and size of the chips. Within the digester, the strength, and temperature, as well as the time spent within each zone affect the pulp quality.

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

Continuous digesters can be up to 200 feet tall and range in diameter from 12 to 18 feet. Chips and cooking liquor are delivered to the top. Excess liquor that was used to transport the chips is removed and the chips slowly move as a plug down the length of the digester over a period of several hours. Screened outlets along the outer wall of the digester allow liquor to be withdrawn at different elevations down the digester. A liquor distribution system, which consists of a set of concentric pipes extending down from the top of the digester, permits liquor to be introduced into the flow of chips at multiple elevations inside the digester.

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.