Cover Image

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...

Full description

Saved in:
Bibliographic Details
Main Authors: Qureshi, Khan Muhammad, Abnisa, Faisal, Daud, Wan Mohd Ashri Wan
Format: Article
Published: Elsevier 2019
Subjects:
TP Chemical technology
Online Access:http://eprints.um.edu.my/23721/
https://doi.org/10.1016/j.jaap.2019.04.021
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.um.eprints.23721
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 https://doi.org/10.1016/j.jaap.2019.04.021 doi:10.1016/j.jaap.2019.04.021
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TP Chemical technology
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
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
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
title 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_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_sort novel helical screw-fluidized bed reactor for bio-oil production in slow-pyrolysis mode: a preliminary study
publisher Elsevier
publishDate 2019
url http://eprints.um.edu.my/23721/
https://doi.org/10.1016/j.jaap.2019.04.021
_version_ 1662755170469019648
score 13.211869

Similar Items