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Kinetic and economic considerations on the HCl-catalysed acetic acid processing of pine wood

Kinetische und ökonomische Betrachtungen zum HCl-katalysierten Essigsäure-Aufschluß von Kiefernholz

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Abstract

Kinetic models describing the main effects caused during the HCl-catalysed acetic acid processing of Pinus pinaster wood were generalized using empirical equations. On this basis, a calculation scheme was developed for evaluating the influence of selected operational variables (reaction time and catalyst concentration) on the mass flow rates and composition of the process streams for operation at 115 or 130°C. Material and energy balances allowed the design of the main unit operations, providing the information necessary to analyze the effect of the operational conditions on the economic features of the process.

Zusammenfassung

Kinetische Modelle, die die hauptsächlichen Einflüsse währenz des HCl-katalysierten Essigsäure-Aufschlusses von Pinus pinaster beschreiben, wurden berallgemeinert unter Verwendung empirischer Gleichungen. Auf dieser Grundlage wurde ein Berechnugsschema entwickelt zur Bewertung des Einflusses ausgewählter Prozeßparameter (wie Reaktionszeit un Konzentration des Katalysators) auf die Massenströme und deren Zusammensetzung bei Reaktionstempertaturen von 115 bzw. 130°C. Die Erstellung von Stoff-und Energiebilanzen ermöglichte eine Umgestaltung der Hauptprozeßeinheit. Zudem werden Informationen bereitgestellt, un den Einfluß des Prozeßbedingungen auf die wirtschaftichen Aspekte des Prozesses absuzchätzen.

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Authors and Affiliations

  1. Department of Chemical Engineering, University of Vigo (Campus Orense), Faculty of Sciences, Las Lagunas, 32004, Orense, Spain

    J. C. Parajó & V. Santos

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  1. J. C. Parajó
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  2. V. Santos
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Parajó, J.C., Santos, V. Kinetic and economic considerations on the HCl-catalysed acetic acid processing of pine wood. Holz als Roh-und Werkstoff 54, 119–125 (1996). https://doi.org/10.1007/s001070050150

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