Inventory audit notice: TAPPI Press orders will not be processed from August 21–28 during our fiscal year-end inventory audit. Orders placed during this time will ship starting August 31, in the order received. Normal payment processing also resumes August 31.

Thanks for your patience — this helps us serve our members better.

Search

Use the search bar or filters below to find any TAPPI product or publication.

Showing 4,931–4,940 of 5,089 results (Duration : 0.018 seconds)

Filters

Industry

Topics

Content Type

Publications

Level of Knowledge

Committees

Event Type

Collections

Courses
Events
2027 Kraft Recovery Operations Course

One of TAPPI's highest rated, longest running events! You'll learn ways to improve pulp production efficiency, minimize operating costs and reduce environmental impact. This course is designed for pulp mill operations personnel.

Determination of Sulfate Ions in Kraft Black Liquors by a Turbidity Method, 2006 Engineering, Pulping, & Environmental Conference

Determination of Sulfate Ions in Kraft Black Liquors by a Turbidity Method, 2006 Engineering, Pulping, & Environmental Conference

Financial Benefits of Automating Maintenance Documentation, 1997 Process Control, Electrical & Info. Conference Proceedings

Financial Benefits of Automating Maintenance Documentation, 1997 Process Control, Electrical & Info. Conference Proceedings

Green Liquor Impregnation in Kraft Pulping - Effect of Different Inorganic Components, 2000 Pulping / Process & Product Quality Conference Proceedings

Green Liquor Impregnation in Kraft Pulping - Effect of Different Inorganic Components, 2000 Pulping / Process & Product Quality Conference Proceedings

Chloride Removal from The Kraft Recovery Boiler Dust Using the Precipitator Dust Purification (PDP) System, 1998 International Chemical Recovery Conference Proceedings

Chloride Removal from The Kraft Recovery Boiler Dust Using the Precipitator Dust Purification (PDP) System, 1998 International Chemical Recovery Conference Proceedings

Basic Engineering Design Data for Ozone/Solvent Bleaching of Alcell Derived Pulp, 1996 International Pulp Bleaching Conference Proceedings

Basic Engineering Design Data for Ozone/Solvent Bleaching of Alcell Derived Pulp, 1996 International Pulp Bleaching Conference Proceedings

Webinars
Smarter Mills, Better Decisions: Embedding APC into Asset Performance Management

11AM -12PM (EST)

Journal articles
Magazine articles
Open Access
Kraft recovery boiler operation with splash plate and/or beer can nozzles — a case study, TAPPI Journal October 2021

ABSTRACT: In this work, we study a boiler experiencing upper furnace plugging and availability issues. To improve the situation and increase boiler availability, the liquor spray system was tuned/modified by testing different combinations of splash plate and beer can nozzles. While beer cans are typically used in smaller furnaces, in this work, we considered a furnace with a large floor area for the study. The tested cases included: 1) all splash plate nozzles (original operation), 2) all beer can nozzles, and 3) splash plate nozzles on front and back wall and beer cans nozzles on side walls. We found that operating according to Case 3 resulted in improved overall boiler operation as compared to the original condition of using splash plates only. Additionally, we carried out computational fluid dynamics (CFD) modeling of the three liquor spray cases to better understand the furnace behavior in detail for the tested cases. Model predictions show details of furnace combus-tion characteristics such as temperature, turbulence, gas flow pattern, carryover, and char bed behavior. Simulation using only the beer can nozzles resulted in a clear reduction of carryover. However, at the same time, the predicted lower furnace temperatures close to the char bed were in some locations very low, indicating unstable bed burning. Compared to the first two cases, the model predictions using a mixed setup of splash plate and beer can nozzles showed lower carryover, but without the excessive lowering of gas temperatures close to the char bed.

The Economics of Direct Steam Injection, 2005 Engineering, Pulping & Environmental Conference

The Economics of Direct Steam Injection, 2005 Engineering, Pulping & Environmental Conference

Treatment and Reuse of Process Water in Pulp and Paper Industry, Steps Towards Effluent Free Operation, 1996 Minimum Effluent Mills Symposium Proceedings

Treatment and Reuse of Process Water in Pulp and Paper Industry, Steps Towards Effluent Free Operation, 1996 Minimum Effluent Mills Symposium Proceedings

Inside this Section