Consistently Inconsistent Black Liquor

November 5 - 8, 2023 | Atlanta, GA

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Consistently Inconsistent Black Liquor

Learn how to decrease process variability and improve efficiencies at PEERS 2023


Atlanta (July 13, 2023) - Black liquor is a complex fuel of water, lignin fragments, hemicellulose, inorganic salts, sugars, starches, organic sulfur compounds and tall oil soaps. In contrast to other fuels in the world, the properties of black liquor are poorly understood. They change from species to species, from mill to mill, and from day to day. Black liquor is consistently inconsistent.

Because of the changing properties of black liquor, the recovery boiler tends to experience operating problems associated with fouling, loss of thermal efficiency, environmental discharges, and corrosion. Attendees of TAPPI’s 2023 Pulping, Engineering, Environmental, Recycling and Sustainability (PEERS) Conference, November 5-8, 2023 in Atlanta, GA, have the opportunity to learn about a technology that measures complete liquor compositions to help pulp mills decrease process variability and improve efficiencies.

John Porter of FITNIR Analyzers Inc will present Measurements Lead to Real Understandings and Better Operating Control of the Recovery Liquor Cycle as part of PEERS’ Energy, Recovery, Lime Kiln and Recaust track. During his presentation, Porter with share how the use of the FT-NIR (Fourier Transform Near Infrared) spectrometer can determine actual liquor parameters online. He will explain how the molecular spectroscopy scan of the spectral frequency range allows for the individual components to be determined from their unique features, allowing mills to better control and optimize their processes.

PEERS’ Energy, Recovery, Lime Kiln and Recaust track addresses key process areas in a mill, including evaporators, recovery boiler, recaust plant, lime kiln and energy generation. Topics are focused on maximizing the efficiency and throughput of the recovery cycle. In addition to two panel discussions, Recovery Boiler Best Operation Practices and Mud Filters for Lime Kiln Operations, attendees have the opportunity to attend one or more of the 22 expert-led presentations held within the following sessions:

• Lime Kiln Structure and Unit Operations
• Boiler Optimization and Improvements
• Evaporation Unit Operations and Black Liquor Measurement
• Unit Operations Recaust/Kiln
• Using Technology to Simulate and Optimize a Kraft Mill
• Kraft Liquor Cycle Chemistry
• NPEs and Overall Process Mill/Recaust

Learn more about Energy, Recovery, Lime Kiln and Recaust track presentations and speakers.

PEERS 2023
PEERS, November 5-8, 2023 in Atlanta, GA, is considered the premier technical event focusing on the latest advances in technology, as well as fundamental process knowledge and control issues mills face each day. Its comprehensive technical program emphasizes new methods and best practices to help mills optimize operations and reach their sustainability goals. In addition to Energy, Recovery, Lime Kiln and Recaust (ERLR), program tracks include: Pulping and Bleaching; Engineering, Reliability, Corrosion & Materials (ERCM); Environmental; Recycling; Sustainability; and Nonwood.

The Conference also offers multiple networking events, a New Technology Showcase, and an exhibit floor where attendees can speak with suppliers about the latest technologies and solutions. In addition, attendees are invited to attend the Poster Session on Tuesday, November 7th. This session highlights research projects of graduate and undergraduate students, as well as industry professionals. Topics range from advancements in the biomass and bioenergy industries to recent developments in pulping, recycling and sustainability. Students can also participate in the Student Poster Competition and compete for cash prizes. Individuals who would like to participate in the poster session should submit their abstract by August 21, 2023 to Pat Stiede, TAPPI Speaker Relations Manager.

View the full program.

PEERS 2023 is co-located with the International Bioenergy & Bioproducts Conference (IBBC). Attendees can attend both technical programs for only one registration fee. Mills receive special discount pricing.

To register or for more information, visit