scholarly journals Effect of pyrolysis operating conditions on the biomass shrinkage process of leaf waste and the formation of oxygenate and non-oxygenate compound products in bio-oil using ZSM-5 and YSZ catalysts

2021 ◽  
Vol 749 (1) ◽  
pp. 012064
Author(s):  
Miranda Meidistira ◽  
Setiadi
REAKTOR ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 1-9
Author(s):  
Tutuk Djoko Kusworo ◽  
Bayu Aji Pratama ◽  
Dhea Putri Safira

The need for fuel oil continues to increase in line with the increasing number of human populations and the growth rate of dependence on fuel oil. Bio-oil is a condensed-liquid mixture that results from the thermal derivation of biomass containing hemicellulose, lignin, and cellulose. This research developed an optimization of the operation condition of bio-oil from empty palm fruit bunches (OPEFB) using a modified pyrolysis reactor. The temperature and mass of empty palm fruit bunches were the two parameters considered in this study. Optimization was carried out on process parameters using the surface response methodology (RSM) and variance analysis (ANOVA). The significance of the different parameters and the effect of the relationship between parameters on the bio-oil yield is determined using a full factorial central composite design. The optimal operation condition of pyrolysis was found to be 570.71 oC, and the mass of empty palm fruit bunch 420.71 gr. Predictions from the optimum variable of operating conditions produce a bio-oil yield of 5.58%. The actual bio-oil yield on the optimum condition that was be validated is 5.6 %. The chemical composition of bio-oil obtained was evaluated by GCMS to ensure its characterization as a fuel.Keywords: Empty palm fruit bunches, Bio-oil, Pyrolysis, Response Surface Methodology, Optimization


2017 ◽  
Vol 5 (4) ◽  
pp. 4051-4063 ◽  
Author(s):  
Kotaiah Naik Dhanavath ◽  
Kalpit Shah ◽  
Satyavathi Bankupalli ◽  
Suresh K. Bhargava ◽  
Rajarathinam Parthasarathy

2012 ◽  
Vol 195 (1) ◽  
pp. 106-113 ◽  
Author(s):  
María Ibáñez ◽  
Beatriz Valle ◽  
Javier Bilbao ◽  
Ana G. Gayubo ◽  
Pedro Castaño
Keyword(s):  

2016 ◽  
Vol 177 ◽  
pp. 579-590 ◽  
Author(s):  
G. Esteban-Díez ◽  
María V. Gil ◽  
C. Pevida ◽  
D. Chen ◽  
F. Rubiera

2011 ◽  
Vol 25 (3) ◽  
pp. 1191-1199 ◽  
Author(s):  
Suchithra Thangalazhy-Gopakumar ◽  
Sushil Adhikari ◽  
Ram B. Gupta ◽  
Sandun D. Fernando

2021 ◽  
Vol 13 (7) ◽  
pp. 3717
Author(s):  
Frederico Fernandes ◽  
Sandro Matos ◽  
Daniela Gaspar ◽  
Luciana Silva ◽  
Ivo Paulo ◽  
...  

Biomass can be envisaged as a potential solution to mitigate the problems that the extensive exploitation of fossil sources causes on the environment. Transforming biomass into added-value products with better calorific properties is highly desired. Thermochemical liquefaction can convert biomass into a bio-oil. The work herein presented concerns the study of direct liquefaction of Eucalyptus globulus sawdust. The main goal was to optimise the operating conditions of the process to achieve high bio-oil conversion rates. Studies were carried out to understand the impact of the process factors, such as the residence time, catalyst concentration, temperature, and the biomass-to-solvent ratio. The E. globulus sawdust conversion into bio-oil was achieved with a maximum conversion of 96.2%. A higher conversion was reached when the eucalyptus sawdust's thermochemical liquefaction was conducted over 180 minutes in the presence of a >2.44% catalyst concentration at 160 °C. A lower biomass-to-solvent ratio favours the process leading to a higher conversion of biomass into bio-oil. The afforded bio-oil presented a better higher heating value than that of E. globulus sawdust.


Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3861
Author(s):  
Ebtihal A. AlDayyat ◽  
Motasem N. Saidan ◽  
Zayed Al-Hamamre ◽  
Mohammad Al-Addous ◽  
Malek Alkasrawi

The current research focuses on assessing the potential of municipal solid waste (MSW) conversion into biofuel using pyrolysis process. The MSW samples were taken from Zaatari Syrian Refugee Camp. The physical and chemical characteristics of MSW were studied using proximate and elemental analysis. The results showed that moisture content of MSW is 32.3%, volatile matter (VM) is 67.99%, fixed carbon (FC) content is 5.46%, and ash content is 24.33%. The chemical analysis was conducted using CHNS analyzer and found that the percentage of elements contents: 46% Carbon (C) content, 12% Hydrogen (H2), 2% Nitrogen (N2), 44% Oxygen (O2), and higher heat value (HHV) is 26.14 MJ/kg. The MSW pyrolysis was conducted using tubular fluidized bed reactor (FBR) under inert gas (Nitrogen) at 500 °C with 20 °C/min heating rate and using average particles size 5–10 mm. The products of MSW pyrolysis reaction were: pyrolytic liquid, solid char, and gaseous mixture. The pyrolytic oil and residual char were analyzed using Elemental Analyzer and Fourier Transform Infrared Spectroscopy (FTIR). The results of FTIR showed that oil product has considerable amounts of alkenes, alkanes, and carbonyl groups due to high organic compounds contents in MSW. The elemental analysis results showed that oil product content consists of 55% C, 37% O2, and the HHV is 20.8 MJ/kg. The elemental analysis of biochar showed that biochar content consists of 47% C, 49% O2, and HHV is 11.5 MJ/kg. Further research is recommended to study the effects of parameters as reactor types and operating conditions to assess the feasibility of MSW pyrolysis, in addition to the environmental impact study which is necessary to identify and predict the relevant environmental effects of this process.


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