Title

Cellulose Pyrolysis Kinetics In A Simulated Solar Environment

Abstract

The instrumentation and methods required to study rapid, radiative decomposition of highly reactive biopolymers are described and used to determine the kinetic parameters for the pyrolysis of Avicel PH105 microcrystalline cellulose. Experiments were carried out at heating rates greater than 2 K/s in a specially fabricated thermogravimetric analyzer system which employed a 30-kWe/2-kWth downward-facing beam, arc-image furnace as a heat source. The thermogravimetric data were interpreted assuming a simple, single-step reaction mechanism and using a nonlinear least-squares kinetic analysis. Based on the results, an apparent activation energy of 100.5 ± 3 kJ/mol, a preexponential factor of In [A (s-1)] = 14 ± 0.5, and nearly a first-order (n = 0.9 ± 0.05) reaction were obtained. The extent of char formation was determined experimentally and found to be in the range 6.6-8.4% by weight of original dry material depending upon the prevailing reaction conditions. © 1989, American Chemical Society. All rights reserved.

Publication Date

6-1-1989

Publication Title

Industrial and Engineering Chemistry Research

Volume

28

Issue

6

Number of Pages

856-865

Document Type

Article

DOI Link

https://doi.org/10.1021/ie00090a031

Socpus ID

0024680950 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0024680950

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