Oil Palm Shell Research Articles

Potential of sandwich panels with lightweight bioconcrete core with palm oil shell residue for use in civil construction

Resumo O uso de painéis sanduíche na construção civil é uma alternativa viável na busca por materiais com baixo peso próprio, menor condutividade térmica e resistentes à compressão. Para aumentar a sustentabilidade dessa solução, é preciso substituir o reforço de aço das faces e o núcleo em EPS por materiais que apresentem menor custo energético e redução da emissão de gases do efeito estufa durante a produção. Nesse contexto, o presente trabalho tem como objetivo, desenvolver um painel sanduíche com núcleo de concreto leve feito com endocarpo do dendê em substituição do agregado graúdo convencional e faces com argamassa reforçada com fibras curtas de sisal. O bioconcreto foi produzido com dois teores de endocarpo do dendê (100% e 150% da massa de aglomerante) e duas relações água/aglomerante, de 0,35 e 0,45. O aumento do teor de endocarpo resulta em aumento da absorção de água e redução da resistência mecânica, mas os painéis apresentaram massa específica menor que 1480 kg/m³ e resistência a compressão maior que 7 MPa o que os qualifica para uso como alvenaria de vedação. O uso de fibras vegetais permitiu o aumento da tenacidade sob flexão mesmo após o início da fissuração do painel.

Adsorption of Lufenuron 50-EC Pesticide from Aqueous Solution Using Oil Palm Shell-Derived Activated Carbon.

The use of Lufenuron 50-EC pesticide in oil palm crops affects water quality and aquatic life. This study investigated the adsorption of Lufenuron 50-EC from an aqueous solution using activated carbon derived from oil palm shells (OPSs). Activated carbon (AC) was prepared through physical and chemical activation processes in carbon dioxide environments, using potassium hydroxide (KOH) as a chemical activating agent. The resulting AC was characterized using standard techniques. The most favorable operating parameters were physical activation at 900 °C for 2 h, achieving a BET surface area of 548 m2/g. For chemical activation, at 800 °C, 1 h, and an impregnation ratio (KOH/biochar) of 2:1 (w/w), a BET surface area of 90 m2/g was obtained, which was smaller than that achieved by physical activation. The use of KOH reduced the surface area but generated a high presence of functional groups on the AC surface, which is important for adsorption processes. The AC produced achieved high Lufenuron adsorption yields, reaching a maximum of 96.93%. AC produced at 900 °C with 2 h showed the best performance. Therefore, OPS is an excellent precursor for producing AC with favorable characteristics for pollutant adsorption in aqueous solutions, especially for the insecticide Lufenuron.

Fibre Distribution and Dosage Performance on the Impact Resistance of Oil Palm Shells Concrete with Hybrid Polypropylene Fibre-Mesh

Fibre Distribution and Dosage Performance on the Impact Resistance of Oil Palm Shells Concrete with Hybrid Polypropylene Fibre-Mesh

Direct Growth of Bio-Graphene Using Modified-Chemical Vapor Deposition For Straight-Forward Characterization

Oil Palm Shell (OPS) is subjected to heating, resulting in gaseous compound release. These compounds are deposited on the substrate to produce Bio-Graphene. Through Chemical Vapor Deposition (CVD), the process is optimized by growing environment parameters during the production process. This process involves the controlled deposition of gaseous compounds onto a substrate under two different positions of the alumina boat (ABC-1 and ABC-2). Direct deposition on silicon wafers eliminated etching and transfer sequences, simplifying Bio-Graphene characterization. Field Emission Scanning Electron Microscope, Atomic Force Microscope, Raman Spectroscopy, X-ray diffraction, and I-V measurement were employed to characterize the Bio-Graphene. The findings revealed that the better-closed settings (ABC-2) facilitated the growth of high-quality Bio-Graphene with better crystallinity, detectable growth spurt, estimated few-layer thickness, larger growth area, and lower surface roughness. Optimizing the deposition environment at ABC-2 significantly enhances the quality and crystallinity of Bio-Graphene from OPS, paving the way for future applications.

Synthesis of Zeolite-A From Oil Palm Shell Ash for Ferrous Metal Adsorption in Borehole Water

Synthesis of Zeolite-A From Oil Palm Shell Ash for Ferrous Metal Adsorption in Borehole Water

The Influence of Thickness and Mesh Orientation on The Impact Resistance Performance of Geogrid Reinforced Oil Palm Shell Concrete

The Influence of Thickness and Mesh Orientation on The Impact Resistance Performance of Geogrid Reinforced Oil Palm Shell Concrete

Impact of residues of chicken manure and oil palm shell biochar on water holding capacity and yield of peanuts in ultisol

Impact of residues of chicken manure and oil palm shell biochar on water holding capacity and yield of peanuts in ultisol

Thermal Behaviour of Cool-Pavement Materials Development using Palm Oil Shell Aggregate

Cool-pavement technology has emerged as a potential solution to environmental issues posed by the urban heat island phenomenon, with surface temperature acting as a vital parameter in the evaluation of its thermal performance. This study focuses on the thermal performance results of modified asphalt concrete mix, wherein palm oil shell (POS) serves as a replacement for fine aggregate. Modified asphalt samples prepared using the Marshall Mix Design, with varying degrees of fine aggregate substitution (0%, 10%, 20%, 30%, 40%, and 50%), underwent a 24-hour continuous surface temperature measurement over a span of 20 days, under real-world tropical climate conditions. The findings demonstrated that sample P5, comprising 50% fine aggregate substitution, exhibited the highest reduction in surface temperature when compared to control sample P0, registering a significant decrease of up to 3.29°C during the period of peak solar intensity. ANOVA test-based statistical analyses confirmed significantly lower temperatures for all test samples, barring sample P1 (10% aggregate replacement), relative to the control sample. The results highlight the efficacy of POS as a fine aggregate substitute in asphalt concrete, significantly lowering asphalt pavement surface temperature, thereby endorsing the potential use of POS-modified asphalt in cool-pavement applications.

Green concrete with oil palm shell aggregate: usage of the chaos game-based tree algorithm

Green concrete with oil palm shell aggregate: usage of the chaos game-based tree algorithm

Production of syngas from oil palm shell biomass using microwave gasification

The research work on microwave gasification (MWG) is limited in the literature compared to pyrolysis, and little attention has been paid to its efficiency. The present study aims to investigate the effect of MW power (20–40 %) and absorber loading (0–15 wt%) on the temperature, gas composition, syngas yield, quality, and efficiencies during gasification of oil palm shell biomass in a 1.25 kW and 2.45 GHz lab-scale microwave (MW) system. Overall, the yield and quality of syngas increased with MW power, but it decreased after reaching optimum absorber loading. The highest product gas (63.3 wt%) with a heating value of 11.66 MJ/m3 was obtained at an optimum process condition (absorber loading of 10 wt% and MW power of 40 %). Under these conditions, the heating rate of 17 °C/s and maximum syngas (CO + H2) (76.5 vol%) were recorded. The specific energy consumption increased with MW power but dropped with increasing absorber loading, demonstrating MWG to be more energy efficient at higher biomass loading. MW process efficiency (19.7 %) and biomass conversion efficiency (55.6 %) were achieved at optimum process conditions while considering syngas only. The MWG system can become more energy and process-efficient if all byproducts are utilized and scaled up.

Exploring binder efficacy in the fabrication of charcoal briquettes from palmyra palm and oil palm shells: A comprehensive analysis

The fabrication of charcoal briquettes was considered using two distinct bases: palmyra palm and oil palm shells. The critical role of binders – namely tapioca starch, molasses, and termite mound clay (TMC) – were emphasized in influencing the properties of the briquettes. ANOVA results revealed that both the type of binder and charcoal significantly impacted various characteristics, such as proximate components like volatile matter content, and physical properties including combustion time. Briquettes made from palmyra palm shells notably demonstrated superior performance in terms of combustion time and onset time of saturation (OTS). Among the binders, tapioca starch was distinguished for contributing to the lowest ash content and the highest fixed carbon in the briquettes. Conversely, briquettes bound with TMC, despite having the lowest volatile matter percentage, also exhibited the highest ash content and fragility, in addition to the shortest combustion time. These findings highlight the importance of selecting appropriate binders to enhance the efficiency and sustainability of charcoal briquettes, aligning with the increasing demand for environmentally conscious energy solutions in the face of escalating global energy needs.

Influence of seawater mixing on fresh and mechanical properties of oil palm shell lightweight aggregate concrete containing spent garnet

Abstract The rapid advancement in construction practices has led to a higher demand for natural aggregates in the production of concrete. Simultaneously, there has been an increase in pollution due to the improper disposal of industrial waste. Effective waste management has become imperative to prevent environmental harm. A sustainable solution involves incorporating waste materials such as oil palm shells (OPS) from the palm oil industry and spent garnet from shipbuilding activities into concrete production. This research aims to explore the impact of introducing spent garnet as a partial substitute for sand on the fresh and hardened properties of lightweight aggregate concrete (LWAC) made with OPS, mixed with seawater. Two sets of concrete mixes were prepared, varying the proportion of spent garnet as a partial replacement for fine aggregate, and both seawater and freshwater were used in the mixing process. Laboratory tests were conducted to evaluate workability, oven-dry density, and compressive strength of the concrete. The findings indicate that the workability decreases in freshwater but improves in both freshwater and seawater when spent garnet is added. All mixtures containing spent garnet qualify as LWAC. Notably, seawater-mixed OPS LWAC, with 10 % spent garnet, demonstrates the highest compressive strength. The use of seawater accelerates hydration, enhancing concrete strength compared to freshwater. In conclusion, incorporating spent garnet as a replacement for sand in concrete production results in environmentally friendly OPS LWAC. This approach contributes to waste reduction and minimizes reliance on landfills, promoting sustainable construction practices.

Preliminary Study on Structure of Carbon Derived from Palm Oil Shell

Abstract Palm shells are waste that is produced every year due to the large demand for palm oil. The potential for carbon derivatives in palm shell charcoal waste that can be extracted is more like activated carbon. Therefore, this research aims to provide an explanation of the ability of palm shell charcoal carbon as a residual component of palm oil processing that is affordable and abundantly available, which if maximized properly will be the forerunner to the development of technology that has added value. The capabilities of Palm Shell Charcoal can be applied for technical applications with further development. It is hoped that this study will provide initial information for scientists and policy makers in the fields of environmental conservation and technology. Palm shell charcoal (ACKS) that has been washed, dried and made into powder is subjected to DSC-TGA, FTIR, XRD, SEM-EDX testing. The XRD results show that there is a main broad peak that appears around the 2θ ∼23° angle which corresponds to the (002) plane and also a narrow peak appears at the 26° angle which indicates graphite growth. Meanwhile, the FTIR results show that many of the bonds formed are C=O, C-O, C=C and O-H bonds which indicate the presence of hard carbon.

Mechanical Properties and Fracture Patterns in Oil Palm Shell Concrete with Various Cement Types Using Digital Image Correlation

Mechanical Properties and Fracture Patterns in Oil Palm Shell Concrete with Various Cement Types Using Digital Image Correlation

Urgensi Penggunaan Kertas Berbahan Dasar Limbah Cangkang Kelapa Sawit Bagi Peserta Didik di SMK Pertanian Pada Proses Pembelajaran

The conventional type of paper that is still widely used by students to support the learning process in schools is printed modules. Even though digitalization such as ebooks is starting to be used by the public, printed modules are still used to simplify the teaching process in the classroom. The types of paper that are generally used do not all use environmentally friendly paper such as paper from palm oil shell waste processing, due to a lack of in-depth knowledge. This research is a qualitative research that uses interview methods with several students from three different skills programs at one of the Bandung City Agricultural Vocational Schools to measure knowledge about environmentally friendly paper. Participants were asked six questions related to the use of paper in schools, understanding of environmentally friendly paper, and knowledge about paper produced from processing palm oil shell waste. The results show that the majority of students do not know clearly about processing waste from palm oil shells into environmentally friendly paper, but the data shows that alternative types of environmentally friendly paper are needed to participate in preserving environmental welfare and improving economic aspects.

Utilizing bio-based and industrial waste aggregates to improve mechanical properties and thermal insulation in lightweight foamed macro polypropylene fibre-reinforced concrete

This research intends to examine the potential of incorporating waste materials in place of coarse aggregates to augment the mechanical characteristics and thermal insulation of lightweight foamed concrete (LWFC), along with the inclusion of polypropylene (PP) fibres. The PP fibre exhibits excellent tensile strength and enhancement on thermal insulation properties of cementitious materials. In this study, eco-friendly bio-based oil palm shell (OPS) and robust solid polyurethane (SPU) aggregates derived from industrial waste were utilized as substitutes for conventional aggregates. Additionally, silica fume was partially incorporated as supplementary cementitious materials. The addition of PP fibre impacted the workability of the LWFC with the inverted slump value decreased by 1.7 %–17.5 %. The inclusion of PP fibre proportion increased from 0 % to 0.5 % revealed a positive result in mechanical properties and thermal insulation performance. The OPSSPU/0.5 showed the significantly increment of 40.4 % compressive strength, 102.9 % of splitting tensile strength, and 70.8 % flexural strength, respectively. The optimum result was obtained in the OPSSPU/0.5 mixture, which exhibited 3.74 MPa residual compressive strength. Furthermore, utilizing PP fibres brought about a significant reduction in thermal conductivity in the environmentally sustainable LWFC, leading to improvements ranging from 0.2 % to 16.3 % when compared to the control composition. Thus, these findings are essential for encouraging the adoption of such practices in the construction industry and contributing to the reduction of environmental impacts associated with sustainable concrete production.

Ductility Performance of Lightweight Concrete Beam Made from Oil Palm Shell and Clinker

Ductility Performance of Lightweight Concrete Beam Made from Oil Palm Shell and Clinker

Study of Palm Oil Shell Utilization as Metallurgical Coke with Variation of Bondcrete Additive

Coke, an essential ingredient in the steel and metallurgical industries, is typically derived from bituminous coal. However, in Indonesia, where bituminous coal is rare, coke production is dependent on coal imports due to the high moisture content of local coal. An alternative approach is to use biomass, such as palm oil processing waste, for "biomass coke" to produce a more environmentally friendly coke with lower greenhouse gas emissions. Palm kernel shell waste rich in lignocellulose proved suitable for this purpose due to its compressive strength and carbon content. Pyrolysis, a technique for creating porous micro-structured carbon from palm kernel shells, was used to produce this coke substitute, offering a more sustainable energy source with a lower carbon footprint than fossil fuels. Bio-coke exhibits low moisture content (5.84%) and ash content (13.20%) due to the moisture and ash reduction effects of bondcrete adhesive during combustion. It also demonstrates substantial compressive strength (14 mPa), a high calorific value (6795 cal/g), and a favorable pore structure with a large surface area, indicating a positive influence of bondcrete adhesive on coke properties without compromising energy potential.

Evaluation of Corroded OPS Fibre-Concrete using NDT Method

Concrete is one part of an infrastructure that is very commonly used, materials widely used in concrete, such as sand and gravel, come from nature that are limited and will run out if used continuously. Oil palm shell (OPS) waste is an alternative that canbe used to solve this problem. In this study, the proportion of OPS used was 0%, 25%, 50%, and 75% as a partial substitute for coarse aggregate. Pre- and post-corrosion specimens use beam sizes with dimensions of 100 mm × 100 mm × 500 mm. The specimen has a corrosion rate of 7%. The specimen is tested for flexural strength, in addition, the specimen is tested using the Non-Destructive Testing (NDT)method at the age of 28 days and after acceleration corrosion. The NDT methods used in this study were resistivity and impact-echo as evaluation tools for the influence of OPS and fiber on corroded concrete. Based on the results, the lowest value of resistivity was 10.87 kohm/cm on 0% OPS post-corrosion specimen, and the highest value of resistivity of 24.12 kohm/cm on 0% OPS pre-corrosion specimen. Meanwhile, the impact-echo test obtained the lowest value of 2625.33 kHz on 75% OPS post-corrosion specimens and the highest impact-echo value of 11725.26 kHz on 0% OPS post-corrosion specimens. With the increase in the percentage of OPS, the resistivity obtained in pre-corrosion concrete will decrease as well as the impact echo value, except for the 75% OPS specimen, while in post-corrosion specimen impact-echo and resistivity are inversely proportional. The greater the percentage of OPS in concrete, the resistivity value tends to increase but the frequency of impact-echo tends to decrease except in specimens with 75% OPS.

Recycled Household Plastic and Oil Palm Filler Reinforced Epoxy Composite for Lightweight Construction Applications

Polypropylene is extensively used in aerospace, automotive and construction applications due to its versatile properties. This project aims to reduce plastic and oil palm waste and promote the development of strong, sustainable and eco-friendly construction materials. The objective of this project is to develop a sustainable yet high-performance construction material by incorporating polypropylene particles, oil palm empty fruit bunch (OPEFB) fibres and oil palm shell (OPS) particles into epoxy composites through the hand lay-up method. The composite specimens undergo ASTM D638 tensile test to determine the tensile properties. The addition of PP particles in varying weights shows decrease in tensile strength, likely due to poor dispersion and compatibility with the epoxy matrix. Incorporating 3 wt% OPEFB fibres with fibre length from 2mm to 4mm improves tensile strength by 2.32% and 23.36% respectively at higher PP particle loadings which are 15 wt% and 25 wt%. Adding 1 wt% and 3 wt% OPS particles improves the tensile strength by 2.96% and 4.68% respectively, in composites with 10 wt% PP particles and 3 wt% OPEFB fibres. The tensile performance may be improved by treating PP particles with compatibilizers such as silane or maleic anhydride grafted polypropylene.