• 한국연소학회:학술대회논문집
• /
• 2012.11a
• /
• pp.205-206
• /
• 2012

A novel torrefaction process is suggested to improve energy efficiency and to produce high quality biomass fuel. Major developments for novel torrefaction process are as follows. To maximize the energy efficiency in heat transfer, flue gas is directly used for heat source in the torrefier. To accomplish the oxygen free environment in the torrefaction reactor, a burner is developed and it can be runned with fuel rich state. To use the calorific gases produced from torrefier, another burner is developed to combust them. In the test, the novel torrefaction process leads low energy consumption and the quality of torrefied fuel becomes better.

• 한국연소학회:학술대회논문집
• /
• 2014.11a
• /
• pp.263-263
• /
• 2014

Low temperature pyrolysis of woody biomass has been conducted to produce highcalorie torrefied fuel. In this experiment, to maximize the energy efficiency in heat transfer, flue gas is directly used for heat source in the torrefier. To accomplish the oxygen free environment in the torrefaction reactor, a burner has been developed and it can be runned with fuel rich state. An inner central axis rotating type of reactor was applied in experiment. To use the calorific gases produced from torrefier, another burner is developed to combust them.