Mohd Roslee Othman
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View article: Microwave-assisted enhanced activation of date palm leaf char for optimized CO2 adsorption
Microwave-assisted enhanced activation of date palm leaf char for optimized CO2 adsorption Open
This study presents a novel hybrid approach for producing mesoporous activated carbon (AC) from date palm leaves by integrating conventional carbonization with microwave-assisted activation. K₂CO₃ was utilized for chemical activation to en…
View article: Advancements in hydrogen and oxygen evolution reactions using transition metal phosphates electrodes for electrocatalytic water splitting
Advancements in hydrogen and oxygen evolution reactions using transition metal phosphates electrodes for electrocatalytic water splitting Open
View article: Enhanced biomethane purification using iron-modified aluminum formate under electromagnetic influence
Enhanced biomethane purification using iron-modified aluminum formate under electromagnetic influence Open
Biomethane production is a crucial component of renewable energy systems, offering a sustainable alternative to fossil fuels. This study explores the impact of iron modification and electromagnetic field application on the adsorption perfo…
View article: Effect of metal loading on the activity of activated carbon supported Ni-Fe oxides in cracking waste cooking oil to fuel-like hydrocarbons
Effect of metal loading on the activity of activated carbon supported Ni-Fe oxides in cracking waste cooking oil to fuel-like hydrocarbons Open
Climate change concerns attributed to emissions from fuels derived from fossil sources have incentivized research efforts tilted towards producing biofuels which are environmentally friendly and sustainable. Although several bio-based mate…
View article: Photopolymerization of hydrogel using three types of cross-linking agents: effects of water content, mechanical and thermal properties
Photopolymerization of hydrogel using three types of cross-linking agents: effects of water content, mechanical and thermal properties Open
In the present work, a series of polymeric hydrogels composed of 2-hydroxyethyl methacrylate (HEMA) and three types of cross-linking agents, namely 1,6-hexanediol diacrylate (HDODA), ethylene glycol dimethacrylate (EGDMA), and triethylene …
View article: Eco-Friendly Approach to Palm Oil Biodiesel Production: Torrefied Palm Frond Carbon as a Source for CaO/C/NaOH Catalysts
Eco-Friendly Approach to Palm Oil Biodiesel Production: Torrefied Palm Frond Carbon as a Source for CaO/C/NaOH Catalysts Open
Biomass-based sources for energy generation have attracted much attention recently due to its environmental benefits. These days, using edible oils and alkali catalysts, such as CaO, is standard practice for the transesterification step of…
View article: A Thermodynamics Model for the Assessment and Optimisation of Onboard Natural Gas Reforming and Carbon Capture
A Thermodynamics Model for the Assessment and Optimisation of Onboard Natural Gas Reforming and Carbon Capture Open
The paper examines pre-combustion carbon capture technology (PreCCS) for liquefied natural gas (LNG) propelled shipping from thermodynamics and energy efficiency perspectives. Various types of LNG reformers and CCS units are considered. Th…
View article: Adiabaticity impact on hydrogen purification and recovery by pressure swing from binary mixture containing hydrogen and carbon dioxide
Adiabaticity impact on hydrogen purification and recovery by pressure swing from binary mixture containing hydrogen and carbon dioxide Open
Hydrogen purification by conventional adiabatic cylindrical column and non-adiabatic plate pressure swing adsorption (NAPSA) mediated by amorphous spent coffee grounds was investigated to study the impact of the two systems on hydrogen pur…
View article: Production of high-performance biodiesel with a high oxidation stability through a fractionation method using urea
Production of high-performance biodiesel with a high oxidation stability through a fractionation method using urea Open
The presence of polyunsaturated fatty acids (PUFA) in Indonesian commercial biodiesel products causes instability. The fractionation process is carried out on PUFA by applying the urea inclusion compound (UIC) method to improve its quality…
View article: Optimizing hydrogen purification performance by membrane from industrial waste of methanol production
Optimizing hydrogen purification performance by membrane from industrial waste of methanol production Open
There is an increasing interest to migrate from fossil fuel energy dependency to a greener hydrogen economy. In order to meet this challenge, hydrogen should be made cheap and readily available for both industrial and public consumption. I…
View article: Numerical analyses on performance of low carbon containership
Numerical analyses on performance of low carbon containership Open
Onboard Carbon Capture and Storage (OCCS) was found to be a potential approach for maritime decarbonization. By using the optimized OCCS, 90% carbon capture rate was achieved with a lower regeneration duty of 3,637 MJ/ton CO2. It was also …
View article: Biomethane Purification from Biogas by Methane Selective Membrane: Effects of Different Biofuel Grades on Electricity Generation from Natural Gas Turbine
Biomethane Purification from Biogas by Methane Selective Membrane: Effects of Different Biofuel Grades on Electricity Generation from Natural Gas Turbine Open
View article: Nonlinear Control of Fouling in Polyethylene Reactors
Nonlinear Control of Fouling in Polyethylene Reactors Open
Fouling formation in reactor vessels poses a serious threat to the safe operation of the industrial low-density polyethylene (LDPE) polymerization. Fouling also degrades the polymer quality and causes productivity loss to some extent. In t…
View article: Application of artificial neural network to predict water flux from pre-treated palm oil mill effluent using direct contact membrane distillation
Application of artificial neural network to predict water flux from pre-treated palm oil mill effluent using direct contact membrane distillation Open
Using computational models, engineers and researchers are able to observe the results of their research beyond the range of their tested experimental parameters. Process modelling resembles the approximation behaviour. This paper reports t…
View article: Numerical Analyses on Performance of Low Carbon Containership
Numerical Analyses on Performance of Low Carbon Containership Open
View article: Polyunsaturated Fatty Acid Fractionation from Crude Palm Oil (CPO)
Polyunsaturated Fatty Acid Fractionation from Crude Palm Oil (CPO) Open
Biodiesel is a fuel derived from vegetable oil. One of the vegetable oils that can be used in the manufacture of biodiesel is Crude Palm Oil (CPO). High-quality biodiesel must have a low iodine number and a high oxidation stability. This c…
View article: Impact of Heavy Hydrocarbon Concentration on Natural Gas Flow through Transportation Pipelines
Impact of Heavy Hydrocarbon Concentration on Natural Gas Flow through Transportation Pipelines Open
In this work, binary, ternary, quaternion, and quinary natural gas mixtures were evaluated including methane, ethane, propane, butane, and pentane to highlight their impact on pipeline performance and thermophysical properties of natural g…
View article: IMPROVED CARBON DIOXIDE CAPTURE BY NANOFLUIDS CONTAINING INORGANIC NANOPARTICLES AND BINDING ORGANIC LIQUID
IMPROVED CARBON DIOXIDE CAPTURE BY NANOFLUIDS CONTAINING INORGANIC NANOPARTICLES AND BINDING ORGANIC LIQUID Open
Carbon dioxide (CO2) capture has been the most crucial research issue due to the dangerous impact of carbon dioxide emissions on global warming and climate change. In recent decades, a new absorption technology has been used to get rid of …
View article: Composite Catalyst of Palm Mill Fly Ash-Supported Calcium Oxide Obtained from Eggshells for Transesterification of Off-Grade Palm Oil
Composite Catalyst of Palm Mill Fly Ash-Supported Calcium Oxide Obtained from Eggshells for Transesterification of Off-Grade Palm Oil Open
This research was designed to synthesize a composite catalyst of palm oil fly ash-impregnated calcium oxide prepared from eggshell waste. Several preparation conditions, such as temperature and time applied to calcination and dehydration p…
View article: Sensitivity analysis of xylose production process using aspen plus
Sensitivity analysis of xylose production process using aspen plus Open
Xylose production has become one of the most studied process over the year due to the significant application as a raw material for the production of a variety of specialty chemicals, mainly xylitol. The most promising raw material is lign…
View article: Flared Gas Emission Control from an Oil Production Platform
Flared Gas Emission Control from an Oil Production Platform Open
In Samarang oil platform of Repsol (Talisman) Malaysia Limited, there is a need to increase its current oil production that would result in an increase of the associated/excess gas from 21 mmscfd to 31 mmscfd.The current low-pressure gas s…
View article: Optimizing atmospheric distillation unit for maximum light petroleum gas yield and comparative case studies
Optimizing atmospheric distillation unit for maximum light petroleum gas yield and comparative case studies Open
Interest in productivity improvement of quality fuels from petroleum refinery has been on the rise due to high market demand for these fuels as a result of increasing public concern on health, environment and stricter emission regulations.…
View article: Starch as novel water soluble biopolymer in removal mixtures heavy metal ions via polymer enhanced ultrafiltration
Starch as novel water soluble biopolymer in removal mixtures heavy metal ions via polymer enhanced ultrafiltration Open
Four heavy metals Zn (II), Pb (II), Cr (III) and Cr (VI) were selected in this work was tested through a Polymer Enhanced Ultrafiltration (PEUF) system. The effects of pH, polymer concentration and metal ions feed concentration were the ma…
View article: Development of microporous Zr-MOF UiO-66 by sol-gel synthesis for CO2 capture from synthetic gas containing CO2 and H2
Development of microporous Zr-MOF UiO-66 by sol-gel synthesis for CO2 capture from synthetic gas containing CO2 and H2 Open
A well-defined Zr-metal organic framework (UiO-66) was developed using a rapid sol-gel reflux method and activated by solvent exchange, drying and heating. The activation process with an exchangeable guest solvent produced Zr-MOF with high…
View article: Optimizing purity and recovery of hydrogen from syngas by equalized pressure swing adsorption using palm kernel shell activated carbon adsorbent
Optimizing purity and recovery of hydrogen from syngas by equalized pressure swing adsorption using palm kernel shell activated carbon adsorbent Open
This paper provides with a first assessment on the sustainability of Pressure Swing Adsorption (PSA) as a valid option for Carbon Dioxide (CO2) capture in power plant. PSA is a well-established gas separation technique in air separation, g…
View article: Synthesis and Characterization of Mesoporous Hydrotalcite-Alumina Membrane for Carbon Dioxide Enrichment
Synthesis and Characterization of Mesoporous Hydrotalcite-Alumina Membrane for Carbon Dioxide Enrichment Open
Hydrotalcite material was incorporated to enhance the carbon dioxide (CO2) affinity of the alumina membrane for CO2 separation from different gas mixtures. The crack free mesoporous HT-alumina (∼10 µm) porous membranes were successfully sy…
View article: Diversifying bio-petro fuel sources for future energy sustainability and its challenges
Diversifying bio-petro fuel sources for future energy sustainability and its challenges Open
Petroleum has been important in the energy industry since 19th century when the refining of paraffin from crude oil began. The industry recently appears to be in a downtown and fragile moment despite the price of oil is slowly rising. Rene…
View article: Effect of process variables on the calorific value and compressive strength of the briquettes made from high moisture <i>Empty Fruit Bunches</i> (EFB)
Effect of process variables on the calorific value and compressive strength of the briquettes made from high moisture <i>Empty Fruit Bunches</i> (EFB) Open
In this study, the manual hydraulic press was designed to prepare the briquettes from selected biomass waste. Each biomass was sun-dried and milled into small particle sizes before mixing with crude glycerol that used as a biomass binder. …
View article: THE IMPACT OF ENVIRONMENTAL COST LEADERSHIP STRATEGY FOR ACHIEVING SUSTAINABLE DEVELOPMENT
THE IMPACT OF ENVIRONMENTAL COST LEADERSHIP STRATEGY FOR ACHIEVING SUSTAINABLE DEVELOPMENT Open
The significance of environmental cost leadership strategies emerges as being an approach and a method for resolving the environment's problem within the Arabian aviation companies and how they affect the economics of air transportation in…
View article: Effect of Mullite Formation on Properties of Aluminosilicate Ceramic Balls
Effect of Mullite Formation on Properties of Aluminosilicate Ceramic Balls Open
In order to study the effect of mullite phase on the physico-mechanical of the aluminosilicate ceramic balls, 3 ceramic balls made of clay, feldspar and quartz were prepared. However, in this work, the clays were selected from i.e., Trong,…