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Tall Oil Solubility in Industrial Liquors

| 2019:582 | Ioannis Dogaris, Gunnar Henriksson and Mikael Lindström
Tall oil is one of the most valuable by-products from the kraft pulping of softwood. It has a broad spectrum of applications including chemicals, detergents and fuel to combustion engines, and is partly a renewable alternative to petroleum. Even if it is just a minor part of the wood that is converted to tall oil, the volumes produced are significant due to the massive amounts of kraft pulp that is produced. The value per ton of tall oil is also relatively high. High yield of the tall oil is thus important both for economic and environmental reasons.
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In this study methods for increasing the yield of tall oil production has been developed. Specifically, this project investigates if the tall oil separation yield from black liquor (consumed pulping liquor from kraft pulping of wood) could be improved by different types of chemical additions, such as fatty acids.

It has been shown experimentally that the ratio between fatty acids and rosin acids is an important factor for the yield in tall oil separation, meaning that higher fatty acid content leads to an increased tall oil yield.

Publications and reports

Here you will find reports and fact sheets from the program.

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    Biofuels In Lime Kilns 2022-847

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    Bild 2022 847
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    Lime Kiln Dusting 2019-628

    Dusting in a lime kiln can seriously affect the performance of the kiln which may lead to increased fuel consumption or reduced production.

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    • Report

    Tall Oil Solubility in Industrial Liquors 2019-582

    Tall oil is one of the most valuable by-products from the kraft pulping of softwood. It has a broad spectrum of applications including chemicals, detergents and fuel to combustion engines, and is partly a renewable alternative to petroleum. Even if it is just a minor part of the wood that is converted to tall oil, the volumes produced are significant due to the massive amounts of kraft pulp that is produced. The value per ton of tall oil is also relatively high. High yield of the tall oil is thus important both for economic and environmental reasons.

    |2019:582Ioannis Dogaris, Gunnar Henriksson and Mikael Lindström
    bild 2019-582.jpg