Fluidized-Bed Combustion of Selected Wood Chars from the Semi-arid Northeastern Region of Brazil

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Marcelo Ramos (Author) Other; Nelson Rangel (Author) Other; Carlos Pinho (Author) FEUP

Journal

Title: Energy & Fuels

Vol. 26 No. 1

Pages: 400-406

ISSN: 0887-0624

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 4 Citations

ISI Web of Science

Scopus - 3 Citations

Other information

Authenticus ID: P-002-H50

DOI: 10.1021/ef201354f

Abstract (EN): We herein present some results obtained from the burning of chars derived from wood originated in the semi-arid region of northeastern Brazil (Cariri Paraibano) in a fluidized-bed reactor. A series of tests was performed in air and 10:90% (v/ v) mixtures of oxygen and nitrogen. The average diameter of the burning particles ranged from 1.8 to 3.6 mm for bed temperatures of both 750 and 850 °C. The temperature of the burning particles was determined using an energy balance at the surface of the particle. The maximum difference in the temperature between the particles and the bed was 82 °C, when the particles were burned in air. This difference decreased to 41 °C when the particles were burnt in a 10:90% (v/v) mixture of oxygen and nitrogen. Both kinetic and diffusive data were collected, in response to the general lack of this type of data in the literature relating to the design of fluidized-bed combustors.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7