Effect of pretreatment temperature on the yield and properties of bio-oils obtained from the auger pyrolysis of Douglas fir wood
This paper investigates the effect of thermal pretreatment temperatures between 200 and 370 C on the yield and composition of products (bio-charm gasm water and organics) obtained when Douglas-fir wood was subsequently pyrolyzed in an auger reactor at 500 C. The yield of products was reported for th...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Elsevier Science Ltd
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/43444 |
| _version_ | 1848756693144436736 |
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| author | Liaw, S. Zhou, S. Wu, Hongwei Garcia-Perez, M. |
| author_facet | Liaw, S. Zhou, S. Wu, Hongwei Garcia-Perez, M. |
| author_sort | Liaw, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper investigates the effect of thermal pretreatment temperatures between 200 and 370 C on the yield and composition of products (bio-charm gasm water and organics) obtained when Douglas-fir wood was subsequently pyrolyzed in an auger reactor at 500 C. The yield of products was reported for the pretreatment and pyrolysis steps separately, and for the two steps added. The maximum yield of bio-oils achieved without pretreatment was close to 59 mass%. A decrease in total liquid yield was observed when the biomass was pretreated at 300 C. At higher temperatures, the yields of Douglas-fir primary degradation products (lignin oligomers, anhydrosugars and alkylated and methoxylated phenols) decreased. The overall water yield increased gradually to 14 mass% at a pretreatment temperature of 290 C. The yield of lignin oligomers also decreased as the pretreatment temperature increased. A drastic reduction in the yield of methoxylated phenols derived from guaiacyl (G) was observed when the biomass was pretreated at temperatures over 300 C. This drastic reduction in the yield of methoxylated lignin derivatives can be explained by the formation of liquid intermediates that facilitate the formation of ionic species, enhancing dehydration reactions leading to the production of o-quinone methide intermediates critical for bio-char formation. |
| first_indexed | 2025-11-14T09:16:15Z |
| format | Journal Article |
| id | curtin-20.500.11937-43444 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:16:15Z |
| publishDate | 2013 |
| publisher | Elsevier Science Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-434442017-02-28T01:44:34Z Effect of pretreatment temperature on the yield and properties of bio-oils obtained from the auger pyrolysis of Douglas fir wood Liaw, S. Zhou, S. Wu, Hongwei Garcia-Perez, M. Torrefaction Douglas-fir Step-wise pyrolysis Bio-oil Auger pyrolysis This paper investigates the effect of thermal pretreatment temperatures between 200 and 370 C on the yield and composition of products (bio-charm gasm water and organics) obtained when Douglas-fir wood was subsequently pyrolyzed in an auger reactor at 500 C. The yield of products was reported for the pretreatment and pyrolysis steps separately, and for the two steps added. The maximum yield of bio-oils achieved without pretreatment was close to 59 mass%. A decrease in total liquid yield was observed when the biomass was pretreated at 300 C. At higher temperatures, the yields of Douglas-fir primary degradation products (lignin oligomers, anhydrosugars and alkylated and methoxylated phenols) decreased. The overall water yield increased gradually to 14 mass% at a pretreatment temperature of 290 C. The yield of lignin oligomers also decreased as the pretreatment temperature increased. A drastic reduction in the yield of methoxylated phenols derived from guaiacyl (G) was observed when the biomass was pretreated at temperatures over 300 C. This drastic reduction in the yield of methoxylated lignin derivatives can be explained by the formation of liquid intermediates that facilitate the formation of ionic species, enhancing dehydration reactions leading to the production of o-quinone methide intermediates critical for bio-char formation. 2013 Journal Article http://hdl.handle.net/20.500.11937/43444 Elsevier Science Ltd restricted |
| spellingShingle | Torrefaction Douglas-fir Step-wise pyrolysis Bio-oil Auger pyrolysis Liaw, S. Zhou, S. Wu, Hongwei Garcia-Perez, M. Effect of pretreatment temperature on the yield and properties of bio-oils obtained from the auger pyrolysis of Douglas fir wood |
| title | Effect of pretreatment temperature on the yield and properties of bio-oils obtained from the auger pyrolysis of Douglas fir wood |
| title_full | Effect of pretreatment temperature on the yield and properties of bio-oils obtained from the auger pyrolysis of Douglas fir wood |
| title_fullStr | Effect of pretreatment temperature on the yield and properties of bio-oils obtained from the auger pyrolysis of Douglas fir wood |
| title_full_unstemmed | Effect of pretreatment temperature on the yield and properties of bio-oils obtained from the auger pyrolysis of Douglas fir wood |
| title_short | Effect of pretreatment temperature on the yield and properties of bio-oils obtained from the auger pyrolysis of Douglas fir wood |
| title_sort | effect of pretreatment temperature on the yield and properties of bio-oils obtained from the auger pyrolysis of douglas fir wood |
| topic | Torrefaction Douglas-fir Step-wise pyrolysis Bio-oil Auger pyrolysis |
| url | http://hdl.handle.net/20.500.11937/43444 |