A comprehensive program to develop correlations for the physical properties of Kraft black liquor. Interim report No. 2

Thumbnail image of item number 1 in: 'A comprehensive program to develop correlations for the physical properties of Kraft black liquor. Interim report No. 2'.
Thumbnail image of item number 2 in: 'A comprehensive program to develop correlations for the physical properties of Kraft black liquor. Interim report No. 2'.
Thumbnail image of item number 3 in: 'A comprehensive program to develop correlations for the physical properties of Kraft black liquor. Interim report No. 2'.
Thumbnail image of item number 4 in: 'A comprehensive program to develop correlations for the physical properties of Kraft black liquor. Interim report No. 2'.
Showing 1-4 of 109 pages in this report.

PDF Version Also Available for Download.

Description

Experimental effort for the program to evaluate physical properties of kraft black liquors is now proceeding well. Experimental work includes pulping, liquor analysis, lignin purification and characterization, vapor-liquid equilibria, heat capacity, heats of solution and combustion, and viscosity measurements. Measurement of thermal conductivity has not yet begun. Collection of the data necessary for development of generalized correlations is proceeding, but will require about two more years. The digester is operating very well. It is now possible to operate the digester as a closed, rotating reactor or as a batch reactor with liquor circulation. When operated with liquor circulation, temperatures within … continued below

Physical Description

102 p.

Creation Information

Fricke, A. L. December 1, 1990.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 19 times. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Author

Sponsor

Publisher

  • University of Florida
    Publisher Info: Florida Univ., Gainesville, FL (United States)
    Place of Publication: Gainesville, Florida

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

Experimental effort for the program to evaluate physical properties of kraft black liquors is now proceeding well. Experimental work includes pulping, liquor analysis, lignin purification and characterization, vapor-liquid equilibria, heat capacity, heats of solution and combustion, and viscosity measurements. Measurement of thermal conductivity has not yet begun. Collection of the data necessary for development of generalized correlations is proceeding, but will require about two more years. The digester is operating very well. It is now possible to operate the digester as a closed, rotating reactor or as a batch reactor with liquor circulation. When operated with liquor circulation, temperatures within the chip bed can be monitored during cooking. Cooking is reproducible, and cooks are being performed to produce liquors for experimental studies. The digester could be further modified to permit us to conduct rapid exchange batch pulping or to permit us to simulate continuous pulping. Liquors to be used in experimental studies are concentrated in our large scale evaporator or in our small scale evaporator. The large scale evaporator is used to concentrate liquors to about 50% solids for storage and for use in studies requiring high solids liquors. The small scale evaporator is used for preparing final samples to as high as 85% solids and for measuring vapor-liquid equilibria. Liquors are now routinely analyzed to determine all components, except higher molecular weight organic acids and extractives. Lignin determination by uv-visible means has been improved. Lignin purification from black liquor has been improved and lignin molecular weights are determined routinely. Work on lignin molecular weight distribution is still not satisfactory, but recent developments holds promise.

Physical Description

102 p.

Notes

OSTI as DE94014503; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov

Source

  • Other Information: PBD: Dec 1990

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

About | Browse this Collection

What responsibilities do I have when using this report?

Digital Files

When

Dates and time periods associated with this report.

Creation Date

  • December 1, 1990

Added to The UNT Digital Library

  • Nov. 28, 2018, 2:33 p.m.

Description Last Updated

  • March 21, 2023, 12:29 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 1
Total Uses: 19
More Statistics

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'A comprehensive program to develop correlations for the physical properties of Kraft black liquor. Interim report No. 2'.
Thumbnail image of item number 2 in: 'A comprehensive program to develop correlations for the physical properties of Kraft black liquor. Interim report No. 2'.
Thumbnail image of item number 3 in: 'A comprehensive program to develop correlations for the physical properties of Kraft black liquor. Interim report No. 2'.
Thumbnail image of item number 4 in: 'A comprehensive program to develop correlations for the physical properties of Kraft black liquor. Interim report No. 2'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Links for Robots

Helpful links in machine-readable formats.

Archival Resource Key (ARK)

International Image Interoperability Framework (IIIF)

Metadata Formats

Images

URLs

Stats

Fricke, A. L. A comprehensive program to develop correlations for the physical properties of Kraft black liquor. Interim report No. 2, report, December 1, 1990; Gainesville, Florida. (https://digital.library.unt.edu/ark:/67531/metadc1386744/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

Back to Top of Screen