Release of chlorine from the slow pyrolysis of NaCl-loaded cellulose at low temperatures
This study reports the chlorine (Cl) release during the slow pyrolysis of NaCl-loaded cellulose in the temperature range of 150–400 °C, providing new data to better understand the low-temperature Cl release during biomass pyrolysis. The results show that the form and amount of Cl released during the...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/18928 |
| _version_ | 1848749887891439616 |
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| author | Rahim, Usman Gao, Xiangpeng Wu, Hongwei |
| author_facet | Rahim, Usman Gao, Xiangpeng Wu, Hongwei |
| author_sort | Rahim, Usman |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study reports the chlorine (Cl) release during the slow pyrolysis of NaCl-loaded cellulose in the temperature range of 150–400 °C, providing new data to better understand the low-temperature Cl release during biomass pyrolysis. The results show that the form and amount of Cl released during the slow pyrolysis of the NaCl-loaded cellulose strongly depend on pyrolysis temperature. Cl is mainly released as HCl (g) at temperatures ≤300 °C whereas it can be released in forms that are organically bound in heavy tar (termed as “tar-Cl”) at temperatures ≥350 °C. The release of both HCl (g) and total Cl (including gaseous HCl and tar-Cl) begins at 200 °C, reaches the corresponding maximum values (~53% for gaseous HCl and ~71% for total Cl) at 350 °C, and then levels off with further increasing temperature to 400 °C. The amount of organically bound Cl in solid residues after pyrolysis also increases from ~6% at 150 °C to ~36% at 300 °C, expressed as % of Cl in the solid residues. Further increasing temperature to 350–400 °C leads to the depletion of the organically bound Cl in the solid residues. Our data show that the interaction between Cl and cellulose organic structure is at least one of the mechanisms responsible for the release of HCl (g) and tar-Cl during biomass pyrolysis. |
| first_indexed | 2025-11-14T07:28:05Z |
| format | Journal Article |
| id | curtin-20.500.11937-18928 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:28:05Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-189282018-06-18T01:51:32Z Release of chlorine from the slow pyrolysis of NaCl-loaded cellulose at low temperatures Rahim, Usman Gao, Xiangpeng Wu, Hongwei This study reports the chlorine (Cl) release during the slow pyrolysis of NaCl-loaded cellulose in the temperature range of 150–400 °C, providing new data to better understand the low-temperature Cl release during biomass pyrolysis. The results show that the form and amount of Cl released during the slow pyrolysis of the NaCl-loaded cellulose strongly depend on pyrolysis temperature. Cl is mainly released as HCl (g) at temperatures ≤300 °C whereas it can be released in forms that are organically bound in heavy tar (termed as “tar-Cl”) at temperatures ≥350 °C. The release of both HCl (g) and total Cl (including gaseous HCl and tar-Cl) begins at 200 °C, reaches the corresponding maximum values (~53% for gaseous HCl and ~71% for total Cl) at 350 °C, and then levels off with further increasing temperature to 400 °C. The amount of organically bound Cl in solid residues after pyrolysis also increases from ~6% at 150 °C to ~36% at 300 °C, expressed as % of Cl in the solid residues. Further increasing temperature to 350–400 °C leads to the depletion of the organically bound Cl in the solid residues. Our data show that the interaction between Cl and cellulose organic structure is at least one of the mechanisms responsible for the release of HCl (g) and tar-Cl during biomass pyrolysis. 2015 Journal Article http://hdl.handle.net/20.500.11937/18928 10.1016/j.proci.2014.07.020 Elsevier restricted |
| spellingShingle | Rahim, Usman Gao, Xiangpeng Wu, Hongwei Release of chlorine from the slow pyrolysis of NaCl-loaded cellulose at low temperatures |
| title | Release of chlorine from the slow pyrolysis of NaCl-loaded cellulose at low temperatures |
| title_full | Release of chlorine from the slow pyrolysis of NaCl-loaded cellulose at low temperatures |
| title_fullStr | Release of chlorine from the slow pyrolysis of NaCl-loaded cellulose at low temperatures |
| title_full_unstemmed | Release of chlorine from the slow pyrolysis of NaCl-loaded cellulose at low temperatures |
| title_short | Release of chlorine from the slow pyrolysis of NaCl-loaded cellulose at low temperatures |
| title_sort | release of chlorine from the slow pyrolysis of nacl-loaded cellulose at low temperatures |
| url | http://hdl.handle.net/20.500.11937/18928 |