GC: n

CT: Pyrolysis is thermal degradation either in the complete absence of oxidizing agent, or with such a limited supply that gasification does not occur to an appreciable extent or may be described as partial gasification. Relatively low temperature are employed of 500 to 800 °C, compared to 800 to 1000 °C in gasification. Three products are usually produced: gas, pyrolysis oil and charcoal, the relative proportions of which depend very much on the pyrolysis method, the characteristics of the biomass and the reaction parameters. Fast or flash pyrolysis is used to maximize either gas or liquid products according to the temperature employed.

S: http://www.fao.org/docrep/t4470e/t4470e0a.htm (last access: 27 February 2015)

N: 1. The Flash Pyrolysis process involves the rapid heating of finely shredded organic materials in the absence of air using a proprietary heat exchange system. The incoming feed is heated by contact with recycled char and pyrolysed to form liquids, gas, and char.
2. Flash pyrolysis is a rapid heating rate process (greater than 2°C/s) occurring at moderate temperatures (typically 400-600°C) whose liquid tar/oil products are maximized at the expense of char and gas. Vapour residence times are normally less than 2s.
3. The term may well be a trademark of the Occidental Research Corporation.

S: 1, 2 & 3. TERMIUMPLUS.

SYN: fast pyrolysis

S: http://www.fao.org/docrep/t4470e/t4470e0a.htm (last access: 27 February 2015)

CR: biomass, biomass energy, pyrolysis.