Response surface methodology: critical parameters on the production of mangrove wood biochar yield

Abstract

The infiltration of oxygen is unfavorable since it burned away the biomass. Other parameters were also contributed to the production of biochar. The experiments on mangrove wood were conducted using a fixed bed pyrolysis reactor with the temperature range of 300°C to 600°C, oxygen range from 0% to 10% and holding time from 2 hours to 4.4 hours. Response surface methodology (RSM) was implanted for process optimization. There were a significant effect of oxygen percentages and holding time on the production of biochar yield within the range of study. Results show that the optimum biochar yield of 15.2% when the pyrolysis temperature, oxygen percentage, and holding time were 402.5°C, 2.29% and 2 hours respectively. Confirmation experiment showed that 15.1% of biochar yield was obtained with the same pyrolysis parameters which validated the previous optimization.