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Title: Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream

Abstract

The present invention is a rapid method of determining the concentration of the major components in a chemical stream. The present invention is also a simple, low cost, device of determining the in-situ concentration of the major components in a chemical stream. In particular, the present invention provides a useful method for simultaneously determining the concentrations of sodium hydroxide, sodium sulfide and sodium carbonate in aqueous kraft pulping liquors through use of an attenuated total reflectance (ATR) tunnel flow cell or optical probe capable of producing a ultraviolet absorbency spectrum over a wavelength of 190 to 300 nm. In addition, the present invention eliminates the need for manual sampling and dilution previously required to generate analyzable samples. The inventive method can be used in Kraft pulping operations to control white liquor causticizing efficiency, sulfate reduction efficiency in green liquor, oxidation efficiency for oxidized white liquor and the active and effective alkali charge to kraft pulping operations.

Inventors:
 [1];  [2];  [1]
  1. Marietta, GA
  2. Atlanta, GA
Publication Date:
Research Org.:
Lake County Sanitation District, Lakeport, CA (United States)
Sponsoring Org.:
USDOE Assistant Secretary for Energy Efficiency and Renewable Energy (EE)
OSTI Identifier:
982354
Patent Number(s):
7,390,669
Application Number:
10/999,912
Assignee:
Georgia Tech Research Corporation (Atlanta, GA) IDO
DOE Contract Number:
FG07-96ID13428
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Li, Jian, Chai, Xin Sheng, and Zhu, Junyoung. Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream. United States: N. p., 2008. Web.
Li, Jian, Chai, Xin Sheng, & Zhu, Junyoung. Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream. United States.
Li, Jian, Chai, Xin Sheng, and Zhu, Junyoung. Tue . "Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream". United States. doi:. https://www.osti.gov/servlets/purl/982354.
@article{osti_982354,
title = {Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream},
author = {Li, Jian and Chai, Xin Sheng and Zhu, Junyoung},
abstractNote = {The present invention is a rapid method of determining the concentration of the major components in a chemical stream. The present invention is also a simple, low cost, device of determining the in-situ concentration of the major components in a chemical stream. In particular, the present invention provides a useful method for simultaneously determining the concentrations of sodium hydroxide, sodium sulfide and sodium carbonate in aqueous kraft pulping liquors through use of an attenuated total reflectance (ATR) tunnel flow cell or optical probe capable of producing a ultraviolet absorbency spectrum over a wavelength of 190 to 300 nm. In addition, the present invention eliminates the need for manual sampling and dilution previously required to generate analyzable samples. The inventive method can be used in Kraft pulping operations to control white liquor causticizing efficiency, sulfate reduction efficiency in green liquor, oxidation efficiency for oxidized white liquor and the active and effective alkali charge to kraft pulping operations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 24 00:00:00 EDT 2008},
month = {Tue Jun 24 00:00:00 EDT 2008}
}

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