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Aspen plus simulation of bio-char production from a biomass-based slow pyrolysis process

Dahawi, Yahya Ayesh and Abdul Halim, Abdul Razik and Mazrul Nizam, Abu Seman and Mohd Aizudin, Abd Aziz and Mohd Yusri, Mohd Yunus (2018) Aspen plus simulation of bio-char production from a biomass-based slow pyrolysis process. In: 5th IET International Conference on Clean Energy and Technology (CEAT 2018), 4th International Conference on Global Sustainability & Chemical Engineering (ICGSCE 2018), 5-6 September 2018 , Pullman, Kuala Lumpur. pp. 1-6.. (Unpublished)

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Abstract

Biomass-based pyrolysis is a thermo-chemical conversion of biomass feedstock with low oxygen supplied level to produce bio-char, bio-oil and bio-syngas products via slow, intermediate and fast pyrolysis, respectively. The specific yields from pyrolysis process depend on operating conditions to maximize outputs. Bio-char can be used as soil improvement, animal feed supplements, filter material, carbon storage, and energy source. This study has focused on the development a simulation model for slow pyrolysis process utilizing biomass from oil palm empty fruit bunches (EFB) in Aspen Plus software. The facts that EFBs are abundant in Malaysia and have huge feedstock potentials could be realized, among them, through process design dan analysis in the Aspen Plus. Simulation model was developed based on EFB proximate and ultimate analyses and aimed for optimal product fraction yields and for the elemental composition of the pyrolysis products, considering several factors or effects such as pyrolysis temparature, pressure and inert gas flowrate. Simulation results showed the optimal value of bio-char yield was 68.6 wt. % at 9 bars, 300 ℃, and 0.1 kg/min of inert gas flow rate. Eventhough the developed simulation model was an equilibrium-based one, it is useful especially in determining the optimal values of the key effects for the slow pyrolysis process.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: Bio-char; Biomass; Slow pyrolysis; Aspen Plus simulation
Subjects: T Technology > TP Chemical technology
Faculty/Division: Centre of Excellence: Rare Earth Research Centre
Faculty of Chemical & Natural Resources Engineering
Depositing User: Pn. Hazlinda Abd Rahman
Date Deposited: 11 Dec 2018 02:14
Last Modified: 10 Jan 2020 02:37
URI: http://umpir.ump.edu.my/id/eprint/22368
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