Syngas from catalytic steam reforming of palm oil mill effluent: An optimization study

In this work, the syngas production rate (FSyngas) of LaNiO3-catalysed steam reforming of palm oil mill effluent (POME) was optimized with respect to POME flow rate ( _VPOME), catalyst weight (Wcat), and particle size (dcat). With a net acidity, the synthesized LaNiO3 catalysed POME steam reforming...

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Main Authors: Yoke, Wang Cheng, Kim, Hoong Ng, Su, Shiung Lam, Jun, Wei Lim, Wongsakulphasatch, Suwimol, Witoon, Thongthai, Cheng, C. K.
Format: Article
Language:English
Published: Elsevier 2019
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Online Access:http://umpir.ump.edu.my/id/eprint/24496/1/Syngas%20from%20catalytic%20steam%20reforming%20of%20palm%20oil%20mill%20effluent.pdf
http://umpir.ump.edu.my/id/eprint/24496/
https://doi.org/10.1016/j.ijhydene.2019.02.061
https://doi.org/10.1016/j.ijhydene.2019.02.061
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spelling my.ump.umpir.244962019-03-15T01:53:29Z http://umpir.ump.edu.my/id/eprint/24496/ Syngas from catalytic steam reforming of palm oil mill effluent: An optimization study Yoke, Wang Cheng Kim, Hoong Ng Su, Shiung Lam Jun, Wei Lim Wongsakulphasatch, Suwimol Witoon, Thongthai Cheng, C. K. TP Chemical technology In this work, the syngas production rate (FSyngas) of LaNiO3-catalysed steam reforming of palm oil mill effluent (POME) was optimized with respect to POME flow rate ( _VPOME), catalyst weight (Wcat), and particle size (dcat). With a net acidity, the synthesized LaNiO3 catalysed POME steam reforming by cracking the bulky compounds and valorising simpler intermediates into syngas. The degradation efficiencies (XP) were also evaluated by assessing wastewater parameters, viz. pH, chemical oxygen demand (COD), biochemical oxygen demand (BOD5), total suspended solids (TSS), and colour intensity (A). After steam reforming at 873 K, the liquid condensate has neutral pH and zero TSS. The parallel trend of FSyngas and XP verified syngas generation from degradation of POME's organics. At higher_V POME (0.05e0.09 mL/min), greater POME partial pressure promoted its steam reforming and water gas shift, which enhanced catalytic performance. Beyond optimum _VPOME (0.09 mL/min), coke-forming Boudouard reaction deteriorated catalytic activity. Catalytic performance was boosted for a longer residence time at higher Wcat (0.1e0.3 g); nonetheless, it was reduced by agglomerated catalyst when Wcat > 0.3 g. Finer LaNiO3 (dcat > 74 mm) with greater surface area to volume ratio exhibited better performance; however, ultrafine LaNiO3 (dcat < 74 mm) had poor performance because of occluded pores. Remarkably, optimized POME steam reforming over LaNiO3 (T ¼ 873 K, _VPOME ¼ 0.09 mL/min,Wcat ¼ 0.3 g, dcat ¼ 74e105 mm) has generated 132.47 mmoL/min of H2-rich syngas, whilst achieved 99.53% XCOD, 99.88% XA, 99.75% XBOD5, and 100% XTSS. Elsevier 2019 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/24496/1/Syngas%20from%20catalytic%20steam%20reforming%20of%20palm%20oil%20mill%20effluent.pdf Yoke, Wang Cheng and Kim, Hoong Ng and Su, Shiung Lam and Jun, Wei Lim and Wongsakulphasatch, Suwimol and Witoon, Thongthai and Cheng, C. K. (2019) Syngas from catalytic steam reforming of palm oil mill effluent: An optimization study. International Journal of Hydrogen Energy. pp. 1-17. ISSN 0360-3199 (In Press) https://doi.org/10.1016/j.ijhydene.2019.02.061 https://doi.org/10.1016/j.ijhydene.2019.02.061
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Yoke, Wang Cheng
Kim, Hoong Ng
Su, Shiung Lam
Jun, Wei Lim
Wongsakulphasatch, Suwimol
Witoon, Thongthai
Cheng, C. K.
Syngas from catalytic steam reforming of palm oil mill effluent: An optimization study
description In this work, the syngas production rate (FSyngas) of LaNiO3-catalysed steam reforming of palm oil mill effluent (POME) was optimized with respect to POME flow rate ( _VPOME), catalyst weight (Wcat), and particle size (dcat). With a net acidity, the synthesized LaNiO3 catalysed POME steam reforming by cracking the bulky compounds and valorising simpler intermediates into syngas. The degradation efficiencies (XP) were also evaluated by assessing wastewater parameters, viz. pH, chemical oxygen demand (COD), biochemical oxygen demand (BOD5), total suspended solids (TSS), and colour intensity (A). After steam reforming at 873 K, the liquid condensate has neutral pH and zero TSS. The parallel trend of FSyngas and XP verified syngas generation from degradation of POME's organics. At higher_V POME (0.05e0.09 mL/min), greater POME partial pressure promoted its steam reforming and water gas shift, which enhanced catalytic performance. Beyond optimum _VPOME (0.09 mL/min), coke-forming Boudouard reaction deteriorated catalytic activity. Catalytic performance was boosted for a longer residence time at higher Wcat (0.1e0.3 g); nonetheless, it was reduced by agglomerated catalyst when Wcat > 0.3 g. Finer LaNiO3 (dcat > 74 mm) with greater surface area to volume ratio exhibited better performance; however, ultrafine LaNiO3 (dcat < 74 mm) had poor performance because of occluded pores. Remarkably, optimized POME steam reforming over LaNiO3 (T ¼ 873 K, _VPOME ¼ 0.09 mL/min,Wcat ¼ 0.3 g, dcat ¼ 74e105 mm) has generated 132.47 mmoL/min of H2-rich syngas, whilst achieved 99.53% XCOD, 99.88% XA, 99.75% XBOD5, and 100% XTSS.
format Article
author Yoke, Wang Cheng
Kim, Hoong Ng
Su, Shiung Lam
Jun, Wei Lim
Wongsakulphasatch, Suwimol
Witoon, Thongthai
Cheng, C. K.
author_facet Yoke, Wang Cheng
Kim, Hoong Ng
Su, Shiung Lam
Jun, Wei Lim
Wongsakulphasatch, Suwimol
Witoon, Thongthai
Cheng, C. K.
author_sort Yoke, Wang Cheng
title Syngas from catalytic steam reforming of palm oil mill effluent: An optimization study
title_short Syngas from catalytic steam reforming of palm oil mill effluent: An optimization study
title_full Syngas from catalytic steam reforming of palm oil mill effluent: An optimization study
title_fullStr Syngas from catalytic steam reforming of palm oil mill effluent: An optimization study
title_full_unstemmed Syngas from catalytic steam reforming of palm oil mill effluent: An optimization study
title_sort syngas from catalytic steam reforming of palm oil mill effluent: an optimization study
publisher Elsevier
publishDate 2019
url http://umpir.ump.edu.my/id/eprint/24496/1/Syngas%20from%20catalytic%20steam%20reforming%20of%20palm%20oil%20mill%20effluent.pdf
http://umpir.ump.edu.my/id/eprint/24496/
https://doi.org/10.1016/j.ijhydene.2019.02.061
https://doi.org/10.1016/j.ijhydene.2019.02.061
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