Wood briquette torrefaction

In one case, solid yield decreased from 94% to 56% when torrefaction temperature increased from 220 °C to 275 °C.

“For instance, in one case the solid yield decreased from 94% to 56% when the torrefaction temperature increased from 220 °C to 275 °C (Felfli et al., 2005).”

The carbon content of a palm kernel shell increased from 55% to 58% at a torrefaction temperature of 250 °C when residence time increased from 30 to 90 minutes.

“For example, the carbon content of a palm kernel shell increased from 55% to 58% at a torrefaction temperature of 250 °C, when the residence time was increased from 30 to 90 minutes (Felfli et al., 2005).”

The solid product yield of torrefaction varies widely from 50% to 97% depending on temperature and residence time.

“The fraction of solid product yields varies widely from 50% to 97% (Felfli et al., 2005) depending on the temperature and residence time.”

At the same condition, the oxygen content of the product decreased from 31% to 29%.

“At the same condition, the oxygen content of the product was decreased from 31% to 29%.”