Abdi Hanra Sebayang

ORCID: 0000-0002-0810-7625
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About
Contact & Profiles
Research Areas
  • Biodiesel Production and Applications
  • Biofuel production and bioconversion
  • Advanced Combustion Engine Technologies
  • Lubricants and Their Additives
  • Microbial Metabolic Engineering and Bioproduction
  • Catalysis and Hydrodesulfurization Studies
  • Enzyme Catalysis and Immobilization
  • Catalysis for Biomass Conversion
  • Thermochemical Biomass Conversion Processes
  • Algal biology and biofuel production
  • Machine Learning and ELM
  • Oil Palm Production and Sustainability
  • Fuel Cells and Related Materials
  • Engineering and Technology Innovations
  • Enzyme Production and Characterization
  • Advanced Battery Technologies Research
  • Hybrid Renewable Energy Systems
  • Insect Utilization and Effects
  • Electrohydrodynamics and Fluid Dynamics
  • Supercapacitor Materials and Fabrication
  • Heavy Metal Pollution Remediation
  • SMEs Development and Digital Marketing
  • Recycling and Waste Management Techniques
  • Tribology and Lubrication Engineering
  • Material Properties and Processing

State University of Medan
2016-2025

University of Malaya
2015-2019

Hospital Kuala Lumpur
2016

Microalgae are one of the promising feedstock that consists high carbohydrate content which can be converted into bioethanol. Pre-treatment is critical steps required to release fermentable sugars used in microbial fermentation process. In this study, reducing sugar concentration Chlorella species was investigated by pre-treating biomass with dilute sulfuric acid and acetic at different concentrations 1%, 3%, 5%, 7%, 9% (v/v).3,5-Dinitrosalicylic (DNS) method, FTIR, GC-FID were employed...

10.1186/s13068-019-1533-5 article EN cc-by Biotechnology for Biofuels 2019-07-31

The increasing fuel consumption of fossil fuels has led to the development alternative for future.

10.1039/c5ra24983j article EN RSC Advances 2016-01-01

Biodiesel or biodiesel–diesel fuel is the current used to power transportation engines. Contamination on lubricating oil a common issue due leakage extensive use of This study explores lubricant blend's friction and wear with biodiesel derived from waste cooking oil, blend withCalophyllum inophyllum biodiesel–diesel​ blend. The blending biodiesels varies 5% 25% 95% 75% based volume ratio. test was conducted using four-ball tribotester according ASTM D 4172. result showed that BWCIL75 has...

10.1016/j.egyr.2021.12.059 article EN cc-by Energy Reports 2022-01-08

Sterculia foetida derived biodiesel is a potential fuel for diesel engine. The required pre-refining process called degumming and an acid pretreatment before converting them to methyl ester using the transesterification process. This study blended from with different volume ratios (5% 30% of blend 95% 70% fuel). fuels met ASTM D6751 EN 14214 standards. examined obtain its influences on performance emission when operating at engine (1300 rpm 2400 rpm). From outcome, SFB5 shows better than in...

10.1016/j.egyr.2022.06.052 article EN cc-by Energy Reports 2022-06-30

Bioethanol is known as a viable alternative fuel to solve both energy and environmental crises. This study used response surface methodology based on the Box-Behnken experimental design obtain optimum conditions for quality of bioethanol production. Enzymatic hydrolysis optimization was performed with selected parameters, including substrate loading, stroke speed, α-amylase concentration amyloglucosidase concentration. From experiment, resulting are 23.88% (w/v) 109.43 U/g concentration,...

10.3390/en10010035 article EN cc-by Energies 2017-01-01

The increase of motor vehicles results in a rapid fuel supply and generates high emissions, which then affects the environment human health general. Replacement nonrenewable fuels can be achieved by using alternative energy sources. Viewing properties production routes, biodiesel is deemed as one preferred for diesel engines. This work focuses on waste cooking oil through catalyst made mixed multi-fruits' peel ash titanium dioxide nanoparticles transesterification process. Further, produced...

10.1080/15567036.2023.2185317 article EN Energy Sources Part A Recovery Utilization and Environmental Effects 2023-03-03

Optimizing the process parameters of biodiesel production is key to maximizing yields. In this study, artificial neural network models integrated with ant colony optimization were developed optimize two-step Cerbera manghas process: (1) esterification and (2) transesterification. The transesterification processes optimized minimize acid value maximize C. yield, respectively. There was excellent agreement between average experimental values those predicted by models, indicating their...

10.3390/en12203811 article EN cc-by Energies 2019-10-09

The limitation of fossil fuel sources and negative environmental impact persuade scientists around the world to find a solution. One possible solution is by using renewable replace with an inexpensive, fast, effective production process. objective this study investigate biodiesel from crude Reutealis trisperma oil conventional ultrasonic bath stirrer method through esterification transesterification result shows that most reaction time optimum condition for at 2 h 30 min method. conditions...

10.3390/su13063350 article EN Sustainability 2021-03-18
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