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Tall Soap - Undesirable Waste at Paper Production or Valuable Raw Material?
Rousková, Milena ; Tříska, Jan ; Heyberger, Aleš
The paper and pulp industry is due to its huge production capacity source of a big amount of waste - tall soap. This material is often utilized as a not very valuable source of energy, even though it contains many compounds applicable in the chemical, pharmaceutical, food or cosmetics industry. It comprises of a high proportion of fatty and resin acids, used as additives to grease, adhesives, resins, paints or inks. Long-chain aliphatic alcohols serve medical purposes, mainly for atherosclerosis treatment. Phytosterols belong to the most valuable substances contained in the tall soap. These compounds are being applied for hypercholesterolaemia and some types of cancer, they also have a significant therapeutic effect on the cardiovascular and immune systems. Waste tall soap is potentially a very valuable source of a broad spectrum of substances.
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Pyrolysis Gasoline Hydrogenation in Trickle Bed Reactor with Periodically Modulated Feed Rate.
Tukač, V. ; Hanika, Jiří ; Chyba, V. ; Handlová, M. ; Sazanov, Z. ; Lederer, J. ; Kolena, J. ; Jiřičný, Vladimír ; Stavárek, Petr ; Staněk, Vladimír
The effect of feed rate modulation on efficiency of pilot plant trickle bed reactor during pyrolysis gasoline hydrogenation using palladium supported catalyst was investigated. Enhancement factors for unsaturated hydrocarbon components were evaluated from experiments made both in steady state and dynamic operation modes. Feed rate modulation mode prefered hydrogenation of minority components of the feed.
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