A Study on the Pyrolysis of Biomass Wastes via Plasma Torch
Date Issued
2007
Date
2007
Author(s)
Yang, Yu-Chieh
DOI
zh-TW
Abstract
This study examined the feasibility and operation performance of plasma torch pyrolysis of biomass wastes, taking sunflower-oil cake as the target material. It was the biomass waste from the production process of bio-diesel using sunflower seed. In the study, a plasma torch reactor was used for the pyrolysis of the sunflower-oil cake at different operating variables, such as temperature, input power, carrier gas, input mass and reaction time. For the production of syngas, the maximum accumulated mass fractions (or volume fractions) excluding nitrogen and the corresponding occurring temperatures are 93.17 wt.% (51.17 vol.%) of CO at 973 K and 8.21 wt.% (56.13 vol.%) of H2 at 1173 K, respectively. At 973 K, the corresponding composition of H2 is 48.65 vol.%, while at 1173 K, the corresponding composition of CO is 39.82 vol.%. The yield of H2 per mass of input sunflower-oli cake (YH2) increases with the increase of temperature. The values of YH2 at 873, 973, 1073 and 1173 K are 2.23, 3.19, 1.94 and 2.47%, respectivity. Further, the related literatures were surveyed and reviewed. In summary, this study aimed at the need to obtain useful information for converting the sunflower-oil cake to fuels or chemicals via the proposed plasma torch pyrolysis technique which can provide appropriate utilization of bio-energy sources such as biomass wastes approaching to meet the appeal of full recycling of biomass wastes and zero biomass wastes.
Subjects
電漿火炬
葵花籽渣
合成氣
Plasma torch
sunflower-oil cake
syngas
Type
thesis
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