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Fast pyrolysis of Dipterocarpus alatus Roxb and rubber wood in a free-fall reactor
Author(s)
Rueangsan, Koson
Trisupakitti, Somsuk
Senajuk, Watchara
Morris, John
Date Issued
January 1, 2022
Type
Article
Abstract
Dipterocarpus alatus Roxb, sometimes called the ‘diesel tree’, because its resin has been reported to run small engines directly, has not been studied as a source of bio-oil from pyrolysis, although considerable waste is generated from furniture making. Here, we compared it with rubber tree waste, using cassava rhizomes (already extensively studied as a bio-oil source) as a reference. Our free-fall pyrolysis system used a conventional cooled condenser, as well as an electrostatic precipator, to capture bio-oil. Total bio-oil yields were: D alatus, 62% w/w of input biomass, cassava 61%, rubber wood and leaves, 59%. The electrostatic precipitator was responsible for ~20% of the total bio-oil yield: adding the precipitator increased overall yield significantly. HHV values wre highest for rubber wood (21–22 MJ/kg), but only slightly lower for D alatus and cassava (19–20 MJ/kg). Small differences in the properties of the bio-oil from both condensers confirmed that different fractions of the oils were collected in the two condensers. Overall, D alatus showed good potential as a high yielding source of bio-mass for pyrolysis.
Citation
Energy Sources Part A Recovery Utilization and Environmental Effects, 44(1), 2489-2496, 2022