The Experts below are selected from a list of 3555 Experts worldwide ranked by ideXlab platform
Pramod Kumar - One of the best experts on this subject based on the ideXlab platform.
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upgrading Prosopis juliflora to biofuels via a two step pyrolysis catalytic hydrodeoxygenation approach
Fuel, 2020Co-Authors: Swathi Mukundan, Gandham Sriganesh, Pramod KumarAbstract:Abstract Hydrodeoxygenation (HDO) upgrades Prosopis juliflora biomass to liquid fuels. We pyrolysed Prosopis juliflora to crude bio-oil with 55% oxygen and 10% bound water. NbMo/C catalytically hydrodeoxygenated bio-oil to upgraded oil, light oil, gas, and biochar. After 1 h at 300 °C and a catalyst/oil ratio of 0.05, the upgraded bio-oil yield reached 42%. Oxygen and moisture content dropped to 19% and 0.1%. The latter two properties were independent of temperature between 275 °C and 325 °C while yield was optimal at 300 °C. The upgraded oil fuel properties - viscosity (3.2 mm2/s at 40 °C), density (0.98 g/cc at 15 °C), HHV (30 MJ/kg), and stability at room temperature were improved after HDO. A GC–MS detected monomers (39% yield), one-third which were oxygen-free. The oil yield dropped 5% after 5 cycles. Coke contributed most to deactivation but air combusted it at 380 °C. NbMo/C is an efficient catalyst to upgrade bio-oil to bio-fuels.
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Upgrading Prosopis juliflora to biofuels via a two-step pyrolysis – Catalytic hydrodeoxygenation approach
Fuel, 2020Co-Authors: Swathi Mukundan, Gandham Sriganesh, Pramod KumarAbstract:Abstract Hydrodeoxygenation (HDO) upgrades Prosopis juliflora biomass to liquid fuels. We pyrolysed Prosopis juliflora to crude bio-oil with 55% oxygen and 10% bound water. NbMo/C catalytically hydrodeoxygenated bio-oil to upgraded oil, light oil, gas, and biochar. After 1 h at 300 °C and a catalyst/oil ratio of 0.05, the upgraded bio-oil yield reached 42%. Oxygen and moisture content dropped to 19% and 0.1%. The latter two properties were independent of temperature between 275 °C and 325 °C while yield was optimal at 300 °C. The upgraded oil fuel properties - viscosity (3.2 mm2/s at 40 °C), density (0.98 g/cc at 15 °C), HHV (30 MJ/kg), and stability at room temperature were improved after HDO. A GC–MS detected monomers (39% yield), one-third which were oxygen-free. The oil yield dropped 5% after 5 cycles. Coke contributed most to deactivation but air combusted it at 380 °C. NbMo/C is an efficient catalyst to upgrade bio-oil to bio-fuels.
Swathi Mukundan - One of the best experts on this subject based on the ideXlab platform.
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upgrading Prosopis juliflora to biofuels via a two step pyrolysis catalytic hydrodeoxygenation approach
Fuel, 2020Co-Authors: Swathi Mukundan, Gandham Sriganesh, Pramod KumarAbstract:Abstract Hydrodeoxygenation (HDO) upgrades Prosopis juliflora biomass to liquid fuels. We pyrolysed Prosopis juliflora to crude bio-oil with 55% oxygen and 10% bound water. NbMo/C catalytically hydrodeoxygenated bio-oil to upgraded oil, light oil, gas, and biochar. After 1 h at 300 °C and a catalyst/oil ratio of 0.05, the upgraded bio-oil yield reached 42%. Oxygen and moisture content dropped to 19% and 0.1%. The latter two properties were independent of temperature between 275 °C and 325 °C while yield was optimal at 300 °C. The upgraded oil fuel properties - viscosity (3.2 mm2/s at 40 °C), density (0.98 g/cc at 15 °C), HHV (30 MJ/kg), and stability at room temperature were improved after HDO. A GC–MS detected monomers (39% yield), one-third which were oxygen-free. The oil yield dropped 5% after 5 cycles. Coke contributed most to deactivation but air combusted it at 380 °C. NbMo/C is an efficient catalyst to upgrade bio-oil to bio-fuels.
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Upgrading Prosopis juliflora to biofuels via a two-step pyrolysis – Catalytic hydrodeoxygenation approach
Fuel, 2020Co-Authors: Swathi Mukundan, Gandham Sriganesh, Pramod KumarAbstract:Abstract Hydrodeoxygenation (HDO) upgrades Prosopis juliflora biomass to liquid fuels. We pyrolysed Prosopis juliflora to crude bio-oil with 55% oxygen and 10% bound water. NbMo/C catalytically hydrodeoxygenated bio-oil to upgraded oil, light oil, gas, and biochar. After 1 h at 300 °C and a catalyst/oil ratio of 0.05, the upgraded bio-oil yield reached 42%. Oxygen and moisture content dropped to 19% and 0.1%. The latter two properties were independent of temperature between 275 °C and 325 °C while yield was optimal at 300 °C. The upgraded oil fuel properties - viscosity (3.2 mm2/s at 40 °C), density (0.98 g/cc at 15 °C), HHV (30 MJ/kg), and stability at room temperature were improved after HDO. A GC–MS detected monomers (39% yield), one-third which were oxygen-free. The oil yield dropped 5% after 5 cycles. Coke contributed most to deactivation but air combusted it at 380 °C. NbMo/C is an efficient catalyst to upgrade bio-oil to bio-fuels.
Gandham Sriganesh - One of the best experts on this subject based on the ideXlab platform.
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upgrading Prosopis juliflora to biofuels via a two step pyrolysis catalytic hydrodeoxygenation approach
Fuel, 2020Co-Authors: Swathi Mukundan, Gandham Sriganesh, Pramod KumarAbstract:Abstract Hydrodeoxygenation (HDO) upgrades Prosopis juliflora biomass to liquid fuels. We pyrolysed Prosopis juliflora to crude bio-oil with 55% oxygen and 10% bound water. NbMo/C catalytically hydrodeoxygenated bio-oil to upgraded oil, light oil, gas, and biochar. After 1 h at 300 °C and a catalyst/oil ratio of 0.05, the upgraded bio-oil yield reached 42%. Oxygen and moisture content dropped to 19% and 0.1%. The latter two properties were independent of temperature between 275 °C and 325 °C while yield was optimal at 300 °C. The upgraded oil fuel properties - viscosity (3.2 mm2/s at 40 °C), density (0.98 g/cc at 15 °C), HHV (30 MJ/kg), and stability at room temperature were improved after HDO. A GC–MS detected monomers (39% yield), one-third which were oxygen-free. The oil yield dropped 5% after 5 cycles. Coke contributed most to deactivation but air combusted it at 380 °C. NbMo/C is an efficient catalyst to upgrade bio-oil to bio-fuels.
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Upgrading Prosopis juliflora to biofuels via a two-step pyrolysis – Catalytic hydrodeoxygenation approach
Fuel, 2020Co-Authors: Swathi Mukundan, Gandham Sriganesh, Pramod KumarAbstract:Abstract Hydrodeoxygenation (HDO) upgrades Prosopis juliflora biomass to liquid fuels. We pyrolysed Prosopis juliflora to crude bio-oil with 55% oxygen and 10% bound water. NbMo/C catalytically hydrodeoxygenated bio-oil to upgraded oil, light oil, gas, and biochar. After 1 h at 300 °C and a catalyst/oil ratio of 0.05, the upgraded bio-oil yield reached 42%. Oxygen and moisture content dropped to 19% and 0.1%. The latter two properties were independent of temperature between 275 °C and 325 °C while yield was optimal at 300 °C. The upgraded oil fuel properties - viscosity (3.2 mm2/s at 40 °C), density (0.98 g/cc at 15 °C), HHV (30 MJ/kg), and stability at room temperature were improved after HDO. A GC–MS detected monomers (39% yield), one-third which were oxygen-free. The oil yield dropped 5% after 5 cycles. Coke contributed most to deactivation but air combusted it at 380 °C. NbMo/C is an efficient catalyst to upgrade bio-oil to bio-fuels.
Philippe Gérardin - One of the best experts on this subject based on the ideXlab platform.
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Unusual amount of (−)-mesquitol from the heartwood of Prosopis juliflora
Natural product research, 2009Co-Authors: Peter Sirmah, Stéphane Dumarçay, Eric Masson, Philippe GérardinAbstract:A large amount of flavonoid has been extracted and isolated from the heartwood of Prosopis juliflora, an exogenous wood species of Kenya. Structural and physicochemical elucidation based on FTIR, 1H and 13C NMR, GC-MS and HPLC analysis clearly demonstrated the presence of (−)-mesquitol as the sole compound without any noticeable impurities. The product was able to slow down oxidation of methyl linoleate induced by AIBN. The important amount and high purity of (−)-mesquitol present in the acetonic extract of P. juliflora could therefore be of valuable interest as a potential source of antioxidants from a renewable origin.
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Unusual amount of (-)-mesquitol from the heartwood of Prosopis juliflora
Natural Product Research, 2009Co-Authors: Peter Sirmah, Stéphane Dumarçay, Eric Masson, Philippe GérardinAbstract:A large amount of flavonoid has been extracted and isolated from the heartwood of Prosopis juliflora, an exogenous wood species of Kenya. Structural and physicochemical elucidation based on FTIR, 1H and 13C NMR, GC-MS and HPLC analysis clearly demonstrated the presence of (-)-mesquitol as the sole compound without any noticeable impurities. The product was able to slow down oxidation of methyl linoleate induced by AIBN. The important amount and high purity of (-)-mesquitol present in the acetonic extract of P. juliflora could therefore be of valuable interest as a potential source of antioxidants from a renewable origin.
J Kavitha Mary - One of the best experts on this subject based on the ideXlab platform.
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Isolation, screening and identification of moisture stress tolerant Rhizobacteria from xerophyte Prosopis juliflora (Sw)
Phytopathology, 2020Co-Authors: Karvembu P, V Gomathi, R Anandham, J Kavitha MaryAbstract:Plant growth and productivity are adversely affected by various abiotic (high temperature, moisture stress and salinity) and biotic stresses (Pest and Disease). To overcome this problem various strategies are followed viz., modified cultivation practices, improved breeding methods and application of stress tolerant/resistant microorganisms. Present investigation was designed with the view to address the moisture stress by exploring autochthonous microflora of xerophyte Prosopis juliflora (Sw). Ten different isolates were obtained from southern agro-climatic zone of Tamil Nadu and screened in vitro by artificial induction of drought in solution using PEG 6000. Of which two potential isolates (MLSB 2 & MLSB 6) were obtained from the rhizosphere of Prosopis juliflora collected based on significant anount of IAA and proline produced during moisture stress condition and withstand upto (-1.03 M Pa) osmotic potential.
