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Language: English French Portuguese
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Evaporators Series (Details)Includes 5 courses for $299/year. Pulping Library (Details)Includes 72 courses for $1,499/year.
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Training Time: 22 minutes
Compatibility: Desktop, Tablet, Phone
Based on: Industry Standards and Best Practices
Languages: English, Portuguese, French
The Black Liquor Evaporators - Equipment course describes several different evaporator designs that have been used to concentrate black liquor. These include rising film evaporators, falling film evaporators, falling film concentrators, and forced circulation concentrators. It also contains discussions on scaling and boil outs, the role of the surface condenser, overall driving force and capacity, and the removal of non-condensable gases from a multiple effect evaporator set.
Black Liquor Evaporators - Introduction
View Course
Black Liquor Evaporators - Operations
Black Liquor Evaporators - Principles
Black Liquor Testing
Recausticizing Fundamentals
The following key questions are answered in this module:
What is the primary purpose of black liquor evaporators?The primary purpose of the black liquor evaporators is to evaporate water vapor and increase the concentration of the solids in the liquor.
Falling film evaporators have some advantages over rising film evaporators. What is their major disadvantage?Falling film evaporators require a recirculation pump which increases the operating costs of this type of evaporator.
What is the difference between black liquor concentrators and evaporators?Black liquor concentrators have design features to deal with the viscosity and salts which precipitate out of the liquor at higher concentrations.
What is the role of a surface condenser in a mulitple effect evaporator set?The surface condenser condenses vapor from the lowest pressure effect, creating a vacuum which drives vapor flow through the set.
How do non-condensible gases affect evaporator performance?NCGs on the vapor side of an evaporator set interfere with the movement and condensation of water vapor, causing a drop in evaporator capacity.
Below is a transcript of the video sample provided for this module:
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