0023-6152

AA00697606

4772338

To enhance the utilization of wood–based derivatives and to reduce the gaseous emissions during combustion, this study used wood processing residues from Japanese cedar (JC) as a precursor, and prepared JC charcoal (JCC) in different carbonization temperatures. The combustion emission gas was analyzed by Continuous Emission Monitoring (CEM) based on the briquetting conditions, such as the JCC particle size, the mixing percent weight with charcoal and pulping byproduct lignosulfonate (JCC/LS, wt%), and the predetermined density of charcoal briquette (PD). The briquetting conditions with less gaseous emission was developed into “Biomass Charcoal Briquettes (BCB)” by cold pressing. The JCC yielded at the range of carbonization temperature of 300–600°C was 33.22–42.09%. The heating values of JC and various JCCs were 15.54 MJ/kg and 24.51–28.54 MJ/kg, respectively. The power consumption and CO_2 emission were the lowest at the carbonization temperature of 300°C. To develop BCB, the JCC particle size 100–200 mesh at 90/10 wt% and 0.6 g/cm3, 80/20 wt% and 0.6 g/cm3, 80/20 wt% and 0.8 g/cm3 and 80/20 wt% and 1.0 g/cm3 of JCC/LS and PD had less gaseous emission. The heating value of BCBs was 21.02–22.68 MJ/kg, which was higher than that of JC by 45.94%. The heating value of the BCB with the same mixing percent weight increased with the PD. The “BCB” increases the value–added of wood–based derivatives, and evaluates the combustion emission gas in the briquetting condition before briquetting preparation can serve as a reference for developing biomass energy.