Article
Biotechnology & Applied Microbiology
Rubia Idris, William Woei Fong Chong, Atikah Ali, Sidah Idris, Mohd Faizal Hasan, Farid Nasir Ani, Cheng Tung Chong
Summary: In this study, oil palm empty fruit bunch (EFB) was subjected to microwave-induced fast pyrolysis, and it was found that the addition of activated carbon as a microwave susceptor significantly increased the bio-oil yield, resulting in bio-oil enriched with phenolic compounds. This promising method shows potential for producing highly selective mono-phenol rich bio-oil from biowaste.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Energy & Fuels
Sunarno Sunarno, Ida Zahrina, Widia Riski Nanda, Amun Amri
Summary: Pyrolysis oil was produced and upgraded through the co-pyrolysis of treated palm oil empty fruit bunch (PO-EFB) and low-density polyethylene (LDPE) plastic waste, using calcium oxide (CaO) catalyst. LDPE plastic addition increased both the yield and quality of the pyrolysis oil. Increasing co-pyrolysis temperature decreased the yield but improved the quality of the pyrolysis oil.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Multidisciplinary
Mohammed Abobakr Al-Maari, Mohd Azmier Ahmad, Azam Taufik Mohd Din, Hamizura Hassan, Ahmed Mubarak Alsobaai
Summary: Co-pyrolysis of palm wastes with plastics can increase bio-oil yield, with different effects on the chemical composition depending on the types of waste and plastic used.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Agricultural Engineering
Moushmi S. Chakraborty, Arvind M. Lali
Summary: This study utilized a two-step acid-alkali treatment to extract lignin from empty palm fruit bunch and break it down into monomers, achieving an 80% conversion rate. Through fractionation, 37% of the overall lignin was obtained as monomeric compounds.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Biotechnology & Applied Microbiology
Hironaga Akita, Mohd Zulkhairi Mohd Yusoff, Shinji Fujimoto
Summary: The study focused on preparing hydrolysate from OPEFB through hydrothermal treatment, with hemicellulose yield decreasing from 153 mg/g-OPEFB to 27.5 mg/g-OPEFB as the temperature increased from 180 to 200 degrees C. The highest glucose yield was obtained from the enzyme-treated solid phase after hydrothermal treatment at 200 degrees C.
FERMENTATION-BASEL
(2021)
Article
Energy & Fuels
Huei Yeong Lim, Suzana Yusup, Menandro N. Acda, Bridgid Lai Fui Chin, Elisabeth Rianawati, Pornkamol Unrean, Chung Loong Yiin, Armando T. Quitain, Suttichai Assabumrungrat
Summary: This study investigated the in situ catalytic pyrolysis of oil palm empty fruit bunch using CaO-impregnated zeolite catalyst. The optimal conditions for maximum bio-oil yield were determined using central composite rotatable design. The impregnated catalyst exhibited good stability, and the catalytic pyrolysis process resulted in bio-oil with improved water content, lower acid content, and higher aromatic content compared to non-catalytic pyrolysis. Kinetic studies showed that the addition of CaO/HZSM-5 catalyst reduced the activation energy and frequency factor, indicating the catalytic effect of the catalyst.
BIOENERGY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Chutanan Muangsuwan, Warangthat Kriprasertkul, Sakhon Ratchahat, Chen-Guang Liu, Pattaraporn Posoknistakul, Navadol Laosiripojana, Chularat Sakdaronnarong
Summary: The hydrodeoxygenation process of bio-oil derived from palm empty fruit bunch in glycerol was studied using Ni- and Co-based catalysts on an Al2O3 support in a rotating-bed reactor. The NiMo/Al2O3 catalyst showed the most promising results with improved bio-oil quality in terms of oxygen reduction and increased high heating value. The olefins cyclopentanone and cyclopentene were identified as the main components in the hydrodeoxygenated bio-oil, which can be used for the synthesis of jet-fuel range cycloalkanes.
Article
Microbiology
Tat-Ming Lo, In Young Hwang, Han-Saem Cho, Raissa Eka Fedora, Si Hui Chng, Won Jae Choi, Matthew Wook Chang
Summary: This study successfully engineered microbial hosts to directly utilize OPEFB lignin mixtures to produce commodity chemicals, demonstrating a simple one-pot biosynthesis approach that utilizes derivatives of agricultural waste.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Kinanthi Mondylaksita, Jorge A. Ferreira, Wiratni Budhijanto, Claes Niklasson, Mohammad J. Taherzadeh, Ria Millati
Summary: The study demonstrates that high yields of volatile fatty acids can be obtained through fermentation of oil palm empty fruit bunch pretreatment products under conditions that inhibit methanogenesis, especially in a medium containing a mixture of glucan-rich and hemicellulosic compounds-rich fractions.
FERMENTATION-BASEL
(2021)
Article
Engineering, Chemical
Siti Abdul Halim, Noor Afiqah Mohd, Nurul Ashraf Razali
Summary: This study compared the differences in products obtained from microwave pyrolysis (MP) and conventional pyrolysis (CP) in biomass pyrolysis. The results showed that MP increased the yield of bio-oil and biochar, but decreased the percentage of biogas yield. The bio-oil derived from MP had a higher content of monoaromatics and phenolic compounds, while the bio-oil derived from CP contained a significant amount of polycyclic aromatic hydrocarbons. Meanwhile, the syngas produced from MP had a higher percentage compared to CP.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Polymer Science
Kah Yen Lim, Tengku Arisyah Tengku Yasim-Anuar, Nur Sharmila Sharip, Farhana Aziz Ujang, Hazwani Husin, Hidayah Ariffin, Paridah Md Tahir, Xinping Li, Seng Hua Lee, Mohd Termizi Yusof
Summary: This study aims to produce environmental-friendly phenol-formaldehyde resin by using phenolated lignin and bio-oil extracted from oil palm empty fruit bunch black liquor to substitute phenol. The modified resins were prepared by heating a mixture of phenol-phenol substitute with NaOH and formaldehyde solution, and the physical properties of the resins were tested. Results showed that the substitution of 5% phenolated lignin improved the properties of phenol-formaldehyde resin. The production process of phenolated lignin-phenol-formaldehyde resin was also environmentally beneficial.
Article
Environmental Sciences
Savitri Savitri, Febelyn Reguyal, Ajit K. Sarmah
Summary: In this study, empty fruit bunch oil palm was converted into biochar and used for the adsorptive removal of manganese from water. Results showed that the biochar produced at 350 degrees Celsius had the highest adsorption capacity for manganese. The study demonstrated the potential of low-cost and environmentally friendly biochar for the remediation of manganese ions in water.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Libertus Darus, Susana Susana, Halasan Sihombing, Amaliyah Rohsari Indah Utami, Maizirwan Mel
Summary: Utilizing PS pretreatment effectively removes lignin and hemicellulose from OPEFB, increasing cellulose content and enhancing enzymatic digestibility, providing a potential pathway towards economically feasible bioethanol production.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Bemgba B. Nyakuma, Syieluing Wong, Olagoke Oladokun
Summary: The pre-treatment and pelletisation of oil palm empty fruit bunches (OPEFB) can improve its biofuel properties, with high carbon, volatiles, and fixed carbon content. Thermal decomposition of OPEFB pellets occurred in three stages, with the rate-determining step observed at 40% conversion.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Engineering, Chemical
Izzudin Ibrahim, Toshiki Tsubota, Mohd Ali Hassan, Yoshito Andou
Summary: The study focused on improving the surface functionalities of biochar through hydrothermal functionalization, which successfully enhanced its adsorption performance without affecting its surface area value. The results suggest a promising technology for industrial implementation, especially in palm oil mills.
