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.
Language: English
Great for trainers or groups who need unlimited online access to multiple courses. Available in two ways:
Recovery Series (Details)Includes 8 courses for $499/year. Pulping Library (Details)Includes 72 courses for $1,499/year.
Ideal for corporate licensing and high volume users.
Get Convergence courses into your current LMS to track and report employee training. Or contact us to learn more about the advantages of licensing our courses with the Convergence LMS.
Like what you see?
The full course is 14 minutes long and available in a number of affordable formats.
Explore this page for pricing and delivery options.
Training Time: 14 minutes
Compatibility: Desktop, Tablet, Phone
Based on: Industry Standards and Best Practices
Languages: English
Some recovery boilers use waste heat from the combustion gases to evaporate water from incoming black liquor. This increases the efficiency in the amount of steam produced by the boiler. In direct contact evaporators, hot combustion gases directly contact black liquor. This concentrates the black liquor using waste heat, but it also adds unwanted emissions of malodorous sulfur gases to the flue gas. The black liquor oxidation (BLOX) system is designed to pre-treat the black liquor to minimize these emissions. This module covers direct contact evaporators and the theory and operation of the BLOX system.
Kraft Pulping By-Products
View Course
Kraft Recovery Boiler Fundamentals
Kraft Recovery Boilers - Fireside
Kraft Recovery Boilers - Precipitator
Kraft Recovery Boilers - Sootblowers
The following key questions are answered in this module:
What does BLOX stand for?BLOX is an ancronyn for Black Liquor Oxidation System.
Why are BLOX systems used?BLOX systems are used in recovery boilers which have direct contact evaporators to lower the total reduced sulfur emissions in the boiler flue gas stream.
What is the primary compound that BLOX systems are trying to eliminate?BLOX systems are used to lower the emission of TRS compounds, primarily hydrogen sulfide (H2S), in flue gas coming from recovery boilers with direct contact evaporators.
What is a direct contact evaporator?Direct contact evaporators increase the solids in black liquor going to a recovery boiler by first contacting it with the hot flue gas coming from the boiler.
What is the principle of operation of a BLOX system? The BLOX system uses oxygen to oxidize TRS compounds into more stable sodium compounds which do not enter the flue gas stream in direct contact evaporators.
Below is a transcript of the video sample provided for this module:
Perfect for individual users. Get immediate online access. Must be used within 30 days, expires 48 hours after launch.
DVD alternative for in-person classroom training. Get one or more videos on a USB drive. Content expires after 1 year.
Import our SCORM/AICC compatible eLearning courses into an LMS for administrative tracking and reporting on training.