Novel helical screw-fluidized bed reactor for bio-oil production in slow-pyrolysis mode: A preliminary study
Slow pyrolysis has been generally recognized as an improper mode of bio-oil production because it produces a low liquid yield of ˜30 wt.%. This research introduces a type of innovation in which the designed helical screw-fluidized bed reactor can operate in the slow-pyrolysis mode to obtain high-yie...
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2019
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| Online Access: | http://eprints.um.edu.my/23721/ https://doi.org/10.1016/j.jaap.2019.04.021 |
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| author | Qureshi, Khan Muhammad Abnisa, Faisal Daud, Wan Mohd Ashri Wan |
| author_facet | Qureshi, Khan Muhammad Abnisa, Faisal Daud, Wan Mohd Ashri Wan |
| author_sort | Qureshi, Khan Muhammad |
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| content_provider | Universiti Malaya |
| content_source | UM Research Repository |
| continent | Asia |
| country | Malaysia |
| description | Slow pyrolysis has been generally recognized as an improper mode of bio-oil production because it produces a low liquid yield of ˜30 wt.%. This research introduces a type of innovation in which the designed helical screw-fluidized bed reactor can operate in the slow-pyrolysis mode to obtain high-yielding liquids. The concept of the reactor was designed to develop the fluidization condition by using a mechanical device. Experiments were performed at the heating rate of 10 °C/min to achieve 500 °C without using any inert gases. The focus of the preliminary study was on reactor performance, particularly for a setting with helical rotation (50 rpm) and another one without rotation (0 rpm). For the setting without the influence of helical screw rotation, the obtained liquid yield was 38.4 wt.%. Then, the liquid yield was remarkably increased to 51.6 wt.% when the 50-rpm condition was applied. The liquid obtained from the 50-rpm condition contained a higher proportion of organic phase than aqueous phase. The presence of oxygen compound in the organic phase in the 50-rpm condition was lower than that in the 0-rpm condition. Apart from the ability to obtain high-yielding liquids in the slow-pyrolysis condition, the reactor also has other good features, such as low pyrolysis time, fast vapor production, non-agglomeration of particles, non-occurrence of pressure drop during process implementation, and production of good-quality byproduct char. © 2019 Elsevier B.V. |
| format | Article |
| id | my.um.eprints-23721 |
| institution | Universiti Malaya |
| publishDate | 2019 |
| publisher | Elsevier |
| record_format | eprints |
| spelling | my.um.eprints-237212020-02-10T07:57:02Z http://eprints.um.edu.my/23721/ Novel helical screw-fluidized bed reactor for bio-oil production in slow-pyrolysis mode: A preliminary study Qureshi, Khan Muhammad Abnisa, Faisal Daud, Wan Mohd Ashri Wan TP Chemical technology Slow pyrolysis has been generally recognized as an improper mode of bio-oil production because it produces a low liquid yield of ˜30 wt.%. This research introduces a type of innovation in which the designed helical screw-fluidized bed reactor can operate in the slow-pyrolysis mode to obtain high-yielding liquids. The concept of the reactor was designed to develop the fluidization condition by using a mechanical device. Experiments were performed at the heating rate of 10 °C/min to achieve 500 °C without using any inert gases. The focus of the preliminary study was on reactor performance, particularly for a setting with helical rotation (50 rpm) and another one without rotation (0 rpm). For the setting without the influence of helical screw rotation, the obtained liquid yield was 38.4 wt.%. Then, the liquid yield was remarkably increased to 51.6 wt.% when the 50-rpm condition was applied. The liquid obtained from the 50-rpm condition contained a higher proportion of organic phase than aqueous phase. The presence of oxygen compound in the organic phase in the 50-rpm condition was lower than that in the 0-rpm condition. Apart from the ability to obtain high-yielding liquids in the slow-pyrolysis condition, the reactor also has other good features, such as low pyrolysis time, fast vapor production, non-agglomeration of particles, non-occurrence of pressure drop during process implementation, and production of good-quality byproduct char. © 2019 Elsevier B.V. Elsevier 2019 Article PeerReviewed Qureshi, Khan Muhammad and Abnisa, Faisal and Daud, Wan Mohd Ashri Wan (2019) Novel helical screw-fluidized bed reactor for bio-oil production in slow-pyrolysis mode: A preliminary study. Journal of Analytical and Applied Pyrolysis, 142. p. 104605. ISSN 0165-2370, DOI https://doi.org/10.1016/j.jaap.2019.04.021 <https://doi.org/10.1016/j.jaap.2019.04.021>. https://doi.org/10.1016/j.jaap.2019.04.021 doi:10.1016/j.jaap.2019.04.021 |
| spellingShingle | TP Chemical technology Qureshi, Khan Muhammad Abnisa, Faisal Daud, Wan Mohd Ashri Wan Novel helical screw-fluidized bed reactor for bio-oil production in slow-pyrolysis mode: A preliminary study |
| title | Novel helical screw-fluidized bed reactor for bio-oil production in slow-pyrolysis mode: A preliminary study |
| title_full | Novel helical screw-fluidized bed reactor for bio-oil production in slow-pyrolysis mode: A preliminary study |
| title_fullStr | Novel helical screw-fluidized bed reactor for bio-oil production in slow-pyrolysis mode: A preliminary study |
| title_full_unstemmed | Novel helical screw-fluidized bed reactor for bio-oil production in slow-pyrolysis mode: A preliminary study |
| title_short | Novel helical screw-fluidized bed reactor for bio-oil production in slow-pyrolysis mode: A preliminary study |
| title_sort | novel helical screw-fluidized bed reactor for bio-oil production in slow-pyrolysis mode: a preliminary study |
| topic | TP Chemical technology |
| url | http://eprints.um.edu.my/23721/ https://doi.org/10.1016/j.jaap.2019.04.021 |
| url_provider | http://eprints.um.edu.my/ |