OOIR: Observatory of International Research

Papers

(The TQCC of Biofuels-UK is 3. 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 2021-04-01 to 2025-04-01.)

Article	Citations
Policy evaluations of the Renewable Fuel Standard and agricultural land use changes in three Midwestern states for a decade: variables that influence significant changes in crop decisions are not all	36
Optimized bioethanol production from Lemna minuta biomass harvested from polluted water via acid and enzymatic hydrolysis	35
Progress, limitations, and advances of biohydrogen technologies: bringing the technology close to energy participants in developing countries	26
Greenhouse gas emissions from rapeseed oil ethyl and methyl esters	23
Valorization of Nile perch wastes and cow rumen cud for biogas production through anaerobic co-digestion	22
Effect of salinity stress on carbon assimilation, biochemical composition, and bioenergy potential of the microalga Coelastrella sp. KNUA068	21
Insights on sustainable fuels: a new benzimidazole derivative with potential as a diesel-biodiesel blend additive	19
Functionalized iron oxide nanoparticles for covalent immobilization of cellic CTec2 cellulase: enabling enzyme reusability in cellulosic biomass conversion	16
Microscopic study of EPS-infused biodiesel with DEE and its performance and emissions in a diesel engine	16
Experimental investigation of fuel properties and engine operation with natural and synthetic antioxidants added to biodiesel	14
Algal biomass harvesting using low-grade waste heat: the effect of waste heat temperature and air speed on dewatering algal suspension	13
Effect of synthetic antioxidant-doped biodiesel in the low heat rejection engine	13
Biodiesel production from by extraction of carp fish (Cyprinidae) oil and transesterification using CaO derived from limestone and eggshells as heterogeneous catalysts	13
Design and fabrication of smooth periodic constriction reactor to biodiesel production from waste cooking oil	13
Effects of ethyl proxitol (1-ethoxy-2-propanol) additive on combustion and emission characteristics of biodiesel blends	12
Optimizing the grass bio methanation in lab scale reactor utilizing response surface methodology	11
Xylanase enhanced second-generation bioethanol production through simultaneous saccharification and fermentation	11
Bioprocessing sidestream valorization as culture stream for Chlorella vulgaris biomass accumulation: neural data-driven design of experiments	10
Mathematical modeling of the reactions involved in biodiesel production from waste oils and fats in a batch reactor	10
Carbon negative biofuels: a step ahead of carbon neutrality	10
Effect of alkali on fulvic acid extracted from peat methane fermentation residue	10
Effect of diesel and pentanol blends on PAH formation and regulated pollutants	9
Hybrid pathway of bio-ethanol production employing empty fruit bunches co-gasified with charcoal and mixed culture fermentation: Optimization using response surface methodology	9
High yield production of lipid and carotenoids in a newly isolated Rhodotorula mucilaginosa by adapting process optimization approach	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	8

Comparison of anaerobic digestion of various food and non-food wastes: impact of inoculum source on biogas production	8
Chemical pretreatment of corncob for the selective dissolution of hemicellulose and lignin: influence of pretreatment on the chemical, morphological and thermal features	8
Great expectations—future scenarios for production and use of biogas and digestate in Sweden	8
Cell disruption of Chlorella sp. and Ecklonia maxima biomass for bioethanol production using Saccharomyces cerevisiae	7
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	7
Sustainable regulatory framework for ethanol and biodiesel blending with petro-fuels in India to meet fuel demand: a review of biofuel policies	7
Biodiesel production from fish oil: a review	7
Resilience assessment model for biodiesel supply chain: an Indonesian case study	7
Energy recovery from brewery spent grains and spent coffee grounds: a circular economy approach to waste valorization	7
Exploring the potential of microalgae cell factories for generation of biofuels	7
Electrodes materials evaluation in plant microbial fuel cells: a comparison of graphite and stainless steels	7
A review of microalgal cell wall composition and degradation to enhance the recovery of biomolecules for biofuel production	6
Transmission of variations in the biodiesel mandate for Brazilian biodiesel market	6
Effect of zeolitic nano-catalyst on biodiesel yield and biochar formation during the pyrolysis of tallow	6
Bioethanol processing from wheat straw: investment appraisal of a full-scale UK biofuel refinery	6
An innovative methodology for determining the energy potential of sanitary landfills in regions with seasonal waste generation	6
Production of bioethanol from Saccharum spontaneum by simultaneous saccharification and electro-fermentation using mixed culture of microbes	6
Forest biomass potential for wood pellets production in the United States of America for exportation: a review	6
Modeling and simulation of an integrated bioethanol-hydrogen production process	6
Influence of CaO on in-situ tar formation during the co-pyrolysis of coal and cow dung in a Py-GCMS	6
NaCl stress mediated lipid and carotenoid production in freshwater microalga Kirchneriella obesa by optimization of medium composition using response surface methodology	6
Simultaneous computational modelling and experimental validation for Sterculia urens oil extraction for biodiesel application	6
Comprehensive analysis of formaldehyde and acetaldehyde emissions and performance of a diesel engine using various diesel-vegetable oil and diesel-biodiesel blends	5
Characterization of agricultural biomass by particle induced x-ray emission and Rutherford backscattering techniques	5
Multiresponse optimization of biodiesel obtained from a mixture of soybean oil, beef tallow, and waste cooking oil	5
Performance analysis, techno-economic and life cycle assessment of Jatropha curcas L. (Euphorbiaceae) seedcake gasification and Fischer-Tropsch integrated process for bi	5
The impacts of nano fuels containing Fe-Ni-TiO₂/activated carbon nanoparticles on diesel engine performance and emission characteristics	5
Investigation of the determinants of the consumption of biofuels by Greek consumers	5
Bacterial community issued from a Chlorophytum plant-microbial fuel cell for electricity generation	5
Harnessing biodigestion for sustainable energy: agricultural residues utilization in Malambo, Colombia	5
Impact of compression ratio and exhaust gas recirculation on diesel engine performance and NO _x emissions using magnetite nanofuel	5
Recycling calcium oxide nanoparticles for sustainable biodiesel production from nonedible feedstock Argemone mexicana L.	5
A bibliometric analysis of studies on diesel engines fuelled with biodiesel and its blends: trends, hotspots, and future research	5
Biofuels as a Key Renewable Energy Source: a Review of Life Cycle Assessment Studies in South Africa	5
Catalytic activity in methyl esterification reactions and characterization of the superacid HNbMoO₆ treated with different inorganic acids	5
Application of pharmaceutical waste as a heterogeneous catalyst for transesterification of waste cooking oil: biofuel production and its modeling using predictive tools	4
Production and characterization of briquettes obtained from dung, hazelnut shell and molasses for sustainable environment	4
Synergistic co-pyrolysis of corn stover and refuse-derived fuel with microplastics: Kinetic and thermodynamic study	4
Recent advances in conventional and genetically modified macroalgal biomass as substrates in bioethanol production: a review	4
Co-carbonization of waste biomass with expanded polystyrene for enhanced biochar production	4
Comparative assessment of pre-treatment techniques and process economics on marine seaweed, Gelidium pusillum, for enhanced bioethanol production	4
The effects of the usage of silicon dioxide (SiO ₂ ) and titanium dioxide (TiO ₂ ) as nano-sized fuel additives on the engine char	4
Study of performance, emission characteristics, and parametric optimization of compression ignition engine using biofuels: A review	4
An AI-based approach to improve the fuel properties and performance of nano graphene added straight Karanja oil prepared with optimal dispersion parameters	4
The potential production of biofuel from Sargassum sp.: turning the waste catastrophe into an opportunity	4
H ₂ -enriched gaseous fuel production via steam-gasification of biomass by using lime-based sorbents	4
Dual feedstock pyrolysis of Aegle marmelos pressed seed cake and novel Annona squamosa seed particles: the effect of dual natural antioxidant on the oxidation stability of derived co-pyr	4
Influence of high carbonization temperatures on key performance indicators of Arundo donax derived biochars	4
A methodology to formulate technology roadmap and policy package in biofuels	4
PPE kit to bio-oil: an experimental investigation	3

Transesterification of vegetable oils into biodiesel by an immobilized lipase: a review	3
Production and characterization of hierarchical zeolite Y catalyst for biodiesel production using waste cooking oil as a feedstock	3
From feedstocks to FAME: enhancing synthesis efficiency with basic ionic liquids	3
Enhanced biofuel dehydration using MXene-PES nanocomposite membranes via pervaporation	3
Gasifier use for cooking and biochar production by smallholder farmers in Rwanda	3
Recent advancement in thermochemical conversion of biomass to biofuel	3
The effect of thermal conductivity and stably dispersed graphene nanoplatelets on Sterculia foetida biodiesel–diesel blends for the investigation of performance, emissio	3
Oxidative stability of biodiesel: challenges and perspectives for the sustainability of a large-scale program in Brazil	3
Proteobacterial dominance in endophytic bacterial diversity in switchgrass growing under nitrogen range and effect on plant growth	3
Critical analysis of non-price actions driving installation of biogas technology to upgrade existing buildings in Ghana: a demand theory approach	3
Comparative evaluation of high solids anaerobic digestion of rice husk and rice straw: Impact of substrate characteristics and solids concentration on biogas yield and digestate quality	3
To conform or to transform? A comparative case analysis of the societal embedding of biogas systems	3
Novel thermotolerant yeast suitable for industrial bioethanol production	3
New bio-energy source for biofuel from indigenouskepayangfruit in Malaysia	3
Recent advancements and challenges in the lignocellulosic and algal biomass-based bioethanol production: a review	3
Exploring the impact of diesel-vegetable oil blends as an alternative fuel in combustion chambers	3
Production of bioethanol from Opuntia ficus-indica using Saccharomyces cerevisiae and Water Kefir following an autohydrolysis pretreatment	3
Biofuel production from macrophytes	3
Prospects and limitations of existing biofuels and emerging trends in the utilization of nanoparticles for enhanced biofuel production and microbial fuel cell efficiency	3