OOIR: Observatory of International Research

Papers

(The TQCC of Biofuels-UK is 7. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-08-01 to 2026-08-01.)

Article	Citations
Monitoring of biodiesel oxidation reaction in the absence and presence of coffee leaves extract as an antioxidant additive	57
An investigation of the longevity wear assessment during the utilisation of biofuel-diesel blends in a diesel engine: a case study of crude palm and crude jatropha oil	46
Cell disruption of Chlorella sp. and Ecklonia maxima biomass for bioethanol production using Saccharomyces cerevisiae	41
Transmission of variations in the biodiesel mandate for Brazilian biodiesel market	39
Hybrid pathway of bio-ethanol production employing empty fruit bunches co-gasified with charcoal and mixed culture fermentation: Optimization using response surface methodology	37
Functionalized iron oxide nanoparticles for covalent immobilization of cellic CTec2 cellulase: enabling enzyme reusability in cellulosic biomass conversion	34
High yield production of lipid and carotenoids in a newly isolated Rhodotorula mucilaginosa by adapting process optimization approach	32
Biodiesel production from by extraction of carp fish (Cyprinidae) oil and transesterification using CaO derived from limestone and eggshells as heterogeneous catalysts	32
Recycling calcium oxide nanoparticles for sustainable biodiesel production from nonedible feedstock Argemone mexicana L.	32
Gasifier use for cooking and biochar production by smallholder farmers in Rwanda	31
Optimizing biodiesel production from Capparis spinosa oil using supercritical methanol	31
A bibliometric analysis of studies on diesel engines fuelled with biodiesel and its blends: trends, hotspots, and future research	29
Introducing a promising biomass for bioethanol production: sugary cassava root ( Manihot esculenta Crantz)	28
Recent advances in conventional and genetically modified macroalgal biomass as substrates in bioethanol production: a review	27
Exploring the impact of diesel-vegetable oil blends as an alternative fuel in combustion chambers	26
Comparative assessment of pre-treatment techniques and process economics on marine seaweed, Gelidium pusillum, for enhanced bioethanol production	25
From fossil fuels to renewables: an analysis of fuel transition in Swedish heavy transport and industry	24
Performance analysis, techno-economic and life cycle assessment of Jatropha curcas L. (Euphorbiaceae) seedcake gasification and Fischer-Tropsch integrated process for bi	24
Embrittlement pretreatment of fibrous biomass for improving its grindability and combustibility in coal firing power generation	24
Comprehensive analysis of formaldehyde and acetaldehyde emissions and performance of a diesel engine using various diesel-vegetable oil and diesel-biodiesel blends	22
Advancements in direct bio-photolysis: optimizing photosynthetic hydrogen production through environmental and genetic innovations	22
Prospects and limitations of existing biofuels and emerging trends in the utilization of nanoparticles for enhanced biofuel production and microbial fuel cell efficiency	20
CFD simulation of methanol and soybean oil mixing in SMX static mixers: the effect of length-to-diameter ratio	20
Controlling oxygen in biomass-to-energy chemistry: catalytic pathways from lignocellulosic oxygenates to renewable fuels and energy carriers	20
Influence of municipal food waste and poultry manure mixing on substrate physicochemical properties and biogas production	19

Integrated kinetic and reactor-scale evaluation of pinewood gasification in a downdraft reactor: mechanistic insights and performance assessment	19
Pyrolysis of rice-straw and mustard-oil residue blend: evaluation of biochar properties for its sustainable use	19
Chemical composition retention perspective: research on pretreatment production of lignocellulose bioethanol	19
High potential low-cost crude enzymes from Algerian fungal strains for plant polysaccharides hydrolysis	19
Extraction and characterisation of lignin from residues of Mexican Ocote pine ( Pinus montezumae Lamb.) for biofuel production	18
Mapping the landscape of reduced kinetic mechanisms for ethanol diffusion flames: a scoping review	18
Analysis of selective extraction of biofuel components from aqueous solution using single-stage membrane solvent extraction (MSE)	18
Saccharification of lignocellulosic biomass using an enzymatic cocktail from marine bacteria	17
Development of an efficient method to blend forest biomass with agricultural residue to produce fuel pellets with improved mechanical properties	16
Long-term productivity of production-scale, high-diversity prairie biomass feedstocks	16
Comprehensive processing of solid household waste using pyrolysis	16
Evaluation of the structural and crystalline properties of hybrid biochar derived from co-carbonized polyethylene and soybean pod waste	16
Modeling and analysis of hydrogen production bioprocess: Fe ²⁺ addition effect	15
Advanced reactor design for biodiesel synthesis: evaluating a smooth periodic constriction reactor with sunflower oil and eggshell-derived CaO	15
Investigation on chlorella Sp. HS2 microalgae growth using CO ₂ from engine exhaust to study carbon sequestration	15
Harnessing optimal light conditions for sustainable microalgal cultivation and biomass enhancement	15
Towards sustainable continuous co-production of biodiesel and ether from wet microalgae- a review	15
Performance assessment of compression ignition engines powered by biogas, biodiesel, and producer gas mix derived from agriculture waste	15
Application of phosphoric acid plus hydrogen peroxide pretreatment and Aspergillus species enzymatic decomposition on rice straw for bioethanol production	14
Influence of varying aluminum-based combustion compartment sizes on groundnut shell biochar properties	14
Effect of single and combined pretreatment strategies applied to Chlorella vulgaris biomass on bioethanol production	14
Microwave furfural aldol condensation with acetone to biofuel intermediates over a potassium promoted waste red mud-derived catalyst	14
Effects of divalent cations and electron mediators on acetone–butanol–ethanol (ABE) fermentation of Ficus carica	14
Potential use of thermophilic bacteria for second-generation bioethanol production using lignocellulosic feedstocks: a review	14
Enhanced properties of bio-pellet fuel from sawdust via low-temperature wet torrefaction with varying acetic acid concentrations	13
Photocatalytic degradation on Sulphur–Nitrogen Co-Doped Fe ₂ O ₃ surface and enhanced nanostructure design using RERNN-FFO approac	13
Production of biodiesel from Pistacia atlantica (PA) oil seeds using nano-catalyst of alumina/sludge of stone cutting factory (Al ₂ O	13
Highlighting the relationship between bioethanol fuel and the institutional and macro-environmental environment in developed and developing countries	12
A critical review on emulsion fuel formulation and its applicability in compression ignition engine	12
Calorific value prediction models of processed refuse derived fuel 3 using ultimate analysis	12
Study of the addition of Gabiroba leaves extract in the biodiesel oxidation reaction in the presence of metal ions	12
Tuning the acidity of pyridinium-based ionic liquid catalysts for enhanced biodiesel production using oleic acid: a DFT study	11
Production and quality assessment of biodiesel obtained by thermal process from wet microalgae biomass of Choricystis minor var. minor	11
Co-digestion strategies of rice straw and molasses for biohythane production: a techno-economic evaluation	11
Overview of microwave-assisted transesterification technology for biodiesel production with bibliometric indicators	11
Nanotechnology for a greener future: sustainable energy and biofuel advances	11
Valorization of fish waste for sustainable biofuel production: A case study in Ghana	11
Nanoparticles-suspended biodiesel and its blends in compression ignition engines: a bibliometric analysis of research trend and future outlook	11
Effects of stably dispersed carbon nanotube additives in yellow oleander methyl ester-diesel blend on the performance, combustion, and emission characteristics of a CI engine	11
Enhanced biogas generation from water hyacinth juice using an upflow anaerobic digester with effluent recirculation	11
Carbon footprint of four bioethanol cropping systems in a temperate region	11
Valorization of spent coffee grounds: a multi-solvent extraction approach and blending with waste cooking oil for sustainable biodiesel production	11
Nitrogen-rich, potato peel-derived hydrochar as an effective dye adsorbent	11
Exergy analysis of fusel oil as an alternative fuel additive for spark ignition engines	10
Sustainable biodiesel production from Raphanus sativus seed oil using phytosynthesized copper oxide nanocatalyst	10
Synthesis and characterisation of a novel silica—CaO/TPA catalyst for biodiesel production	10
A thermodynamic approach to assess the sustainability of third-generation sunflower waste cooking oil in DICI engine along with exergoeconomic and enviroeconomic perspective	10
Parametric optimization by Box-Behnken design in the pyrolysis of spent coffee grounds and kinetic study	10
A comprehensive assessment of vehicular performance and emission characteristics during real-time test-runs using selected bio-ethanol–gasoline blends	10
Teak leaf biochar production for sustainable forest waste management at low temperatures	10

Compositional study of bio-oil obtained from torrefaction of mixed food waste using H-NMR,¹³C-NMR, DEPT 90 & 135, and GC-MS	10
State-of-the-art novel catalyst synthesized from waste rice husk and eggshells for cleaner biodiesel production	10
Synergistic effects of SWCNT and MgO nanoparticle additives on engine performance and emissions: a laboratory analysis approach	10
Anisidine value as oxidation stability indicator in FAME	10
Effect of diesel and pentanol blends on PAH formation and regulated pollutants	9
Greenhouse gas emissions from rapeseed oil ethyl and methyl esters	9
Modeling and simulation of an integrated bioethanol-hydrogen production process	9
Simultaneous computational modelling and experimental validation for Sterculia urens oil extraction for biodiesel application	9
Effects of ethyl proxitol (1-ethoxy-2-propanol) additive on combustion and emission characteristics of biodiesel blends	9
Influence of inoculum-to-substrate ratio in the pilot-scale anaerobic co-digestion of organic fraction of municipal waste and sewage sludge	9
Biodiesel production from fish oil: a review	9
Decomposition kinetics and diffusion-controlled mechanisms of organic industrial waste: a non-isothermal TGA–iso-conversional study	9
Exploring the potential of microalgae cell factories for generation of biofuels	9
NaCl stress mediated lipid and carotenoid production in freshwater microalga Kirchneriella obesa by optimization of medium composition using response surface methodology	9
A combined study of filterability and soaking strength of fuel filter and effect of injection timing on CI engine characteristics using Ceiba pentandra biodiesel	9
Growth characteristics and biodiesel properties of fatty acids methyl esters (FAMEs) of Scenedesmus dimorphus (Turpin) Kützing	9
Cellulolytic enzymes from Penicillium funiculosum MRJ-16 mutants and their application in the hydrolysis of pretreated rice straw	8
Computational modeling of the combustion reaction kinetics of the oil palm’s Empty Fruit Bunch and Mesocarp Fiber	8
Effect of hydrogen induction on CI engine characteristics fuelled with kapok oil methyl ester-turpentine blend with diethyl ether	8
Thermo chemical conversion of cedar wood by pyrolysis technology for bio-oil	8
The effects of biodiesel produced from waste cooking oils on vibroacoustic properties of a heavy-duty diesel engine	8
Biodiesel synthesis using a physical mixture of calcium diglyceroxide and spent FCC catalysts – kinetics and catalyst reusability studies	8
Enhanced biofuel dehydration using MXene-PES nanocomposite membranes via pervaporation	8
Study of performance, emission characteristics, and parametric optimization of compression ignition engine using biofuels: A review	8
Experimental investigation of elastomer compatibility and engine performance of biodiesel derived from deodorizer distillate	8
A methodology to formulate technology roadmap and policy package in biofuels	8
The effects of the usage of silicon dioxide (SiO ₂ ) and titanium dioxide (TiO ₂ ) as nano-sized f	8
Evaluation of combustion characteristics and emission reduction potential of fusel oil–gasoline blends in a turbocharged 1.8 L gasoline direct injection (GDI) engine	8
Urban wood waste blends with Eucalyptus sp. as a flexible alternative source to supply renewable energy systems	7
A review on biomass pyrolysis and pyrolysis mechanisms	7
Biodiesel production from sunflower oil using a combined atmospheric cold plasma jet-hydrodynamic reactor	7
Analyzing the market conditions and long-term dynamics in the biodiesel industry	7
Integrated assessment of waste-to-energy valorization in Sarawak: harnessing biofuel adoption for sustainability	7
Enhancing sustainability: co-pyrolysis of date palm branches and wastewater microalgae for tailored biochar production	7
Economic analysis of the sustainable aviation fuel supply chain from hybrid poplar in the southeast US considering alternative preprocessing technologies	7
The feasibility of renewable energy recovery from municipal solid wastes in Palestine based on different scenarios	7
Reductive deoxygenation of diphenolic acid using Ir, Re, Mn and Pd based catalysts for biofuel applications	7
An in-depth comparative analysis of fuel evolution: tracking physico-chemical characteristics in conventional diesel, e-diesel, biodiesel, and aged biodiesel	7
Optimization studies on bio-oil yield using microwave-assisted pyrolysis of bio-sludge	7
Comparative study of pretreatment methods for the reverse enzymatic hydrolysis of Chlorella and Spirulina microalgae for bioethanol produc	7
Methanol, isobutanol, kerosene, dimethylfuran, ethanol, and isopropanol additives effects on soot concentration at hydrogen-enriched methane flames	7
Experimental evaluation of cottonseed oil-camphor binary blends on diesel engine performance, combustion, exhaust and cyclic variance parameters	7
Cultivation of Nannochloropsis oculata in palm oil mill effluent (POME) under different monochromatic light-emitting diode (LED) light wavelengths for biodiesel producti	7