The Experts below are selected from a list of 3705 Experts worldwide ranked by ideXlab platform
M G Dastidar - One of the best experts on this subject based on the ideXlab platform.
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Experimental assessment of performance, combustion and emissions of a compression ignition engine fuelled with Spirulina platensis Biodiesel
Energy, 2020Co-Authors: Piyushi Nautiyal, M G Dastidar, K. A. Subramanian, Ashok KumarAbstract:Abstract The investigation was conducted with an aim to explore the potential of novel, less explored Biodiesel from Spirulina platensis Algae, which can be used as an alternate fuel for conventional diesel. The effect of Biodiesel on performance, combustion and emission characteristics of diesel engine was experimentally investigated. The ignition delay period declined to 7.3 °CA for B100 blend compared to 10 °CA for diesel. The heat release rate with Biodiesel-diesel blends was lower than base diesel. The duration of combustion for base diesel, B10, B20 and B100 Algae Biodiesel-diesel blends was found out to be 37.5 ° CA, 38 ° CA, 38 ° CA and 40 ° CA respectively. The carbon monoxide (CO), hydrocarbon (HC) and smoke emissions were reduced significantly as the percentage of Biodiesel in fuel blend is increased. The CO emission decreased from 3.10 g/kWh with diesel to 1.20 g/kWh for B100 at full load. The HC emission showed the decrease from 0.06 g/kWh with diesel to 0.04 g/kWh for B100 whereas smoke emission reduced from 0.7% with diesel to 0.6% for B100 at full load. NOx emission with Biodiesel and its blends increased significantly. NOx was 16.19 g/kWh and 13.3 g/kWh with B100 and base diesel.
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Experimental Investigation on Adsorption Properties of Biochar Derived from Algae Biomass Residue of Biodiesel Production
Environmental Processes, 2017Co-Authors: Piyushi Nautiyal, K. A. Subramanian, M G DastidarAbstract:The adsorption of methylene blue (MB) dye was investigated by utilizing biochar (BC) generated from residue (DB) of Spirulina platensis Algae biomass (AB) left after simultaneous oil extraction and transesterification for Biodiesel production. The motivation of the study was to reduce the overall downstream processing costs of Biodiesel which could help in strengthening its sustainability economically. The experiments for batch adsorption studies were performed to examine the adsorption rate of MB dye from aqueous solution using adsorbents such as BC, AC (commercially available activated carbon), DB and AB as a function of initial dye concentration, adsorbent dosage and pH of the solution. The better adsorption was observed in the case of AC and BC, i.e., 95.6% and 92.6% of dye removal, respectively, compared to other two absorbents, AB (85.2%) and DB (86.4%). The maximum removal of dye (92.6%) was obtained by BC at alkaline pH with adsorbent dosage of 0.2 g/100 mL and initial concentration of dye of 90 mg/L. The adsorption capacity, qo, of biochar was found out to be 57.80 mg/g. Comparing the results of all three isotherms, namely Langmuir, Freundlich and Temkin, the coefficient of determination for Freundlich model was found to be the highest, and thus, it was selected as the most suitable isotherm to describe the equilibrium mechanics of dye adsorption. The production of BC from DB highlights that the waste residue of Biodiesel industry can be alternatively used as adsorbent, enhancing the sustainability of Algae Biodiesel in an environmentally friendly manner.
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Adsorptive removal of dye using biochar derived from residual Algae after in-situ transesterification: Alternate use of waste of Biodiesel industry
Journal of Environmental Management, 2016Co-Authors: Piyushi Nautiyal, K. A. Subramanian, M G DastidarAbstract:The primary aim of this present study was to utilize the residual biomass (DB) of Spirulina platensis Algae, left after in-situ transesterification, for biochar preparation. This is a solid waste residue of Biodiesel industry. The biochar (BC) prepared was examined for its capacity to adsorb congo red dye from the aqueous solution. The results were compared with other adsorbents used in the study such as commercial activated carbon (AC), original Algae biomass (AB) and DB. The results of proximate analysis of BC showed the decrease in the percentage of volatile matter and an increase in fixed carbon content compared to DB. The physico-chemical properties of BC were studied using elemental analysis, SEM, FTIR and XRD techniques. The AC and BC adsorbents showed better performance in removing 85.4% and 82.6% of dye respectively from solution compared to AB (76.6%) and DB (78.1%). The effect of initial dye concentration, adsorbent dosage and pH of solution on the adsorption phenomena was studied by conducting the batch adsorption experiments. The highest specific uptake for biochar was observed at acidic pH of 2 with 0.2 g/100 ml of adsorbent dosage and 90 mg/l of initial concentration. The equilibrium adsorption data were fitted to three isotherms, namely Langmuir, Freundlich and Temkin. Freundlich model proved to show the best suited results with value of correlation coefficient of 99.12%. Thus, the application of DB for production of biochar as potential adsorbent supports sustainability of Algae Biodiesel.
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Production and characterization of Biodiesel from Algae
Fuel Processing Technology, 2014Co-Authors: Piyushi Nautiyal, K. A. Subramanian, M G DastidarAbstract:The feasibility of Biodiesel production from microAlgae as third generation Biodiesel feedstock was studied in the present investigation. The studies were conducted to evaluate the growth patterns of the Algae species i.e. Spirulina, Chlorella and pond water Algae. The oil was extracted from the Algae biomass and then transesterified. Simultaneous extraction and transesterification were also studied using different solvents. Maximum Biodiesel yield was obtained using simultaneous extraction and transesterification using hexane as a solvent. The systematic characterization of Algae biomass, Algae oil and Algae Biodiesel was carried out to establish the potential of microAlgae for Biodiesel production.
Piyushi Nautiyal - One of the best experts on this subject based on the ideXlab platform.
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Experimental assessment of performance, combustion and emissions of a compression ignition engine fuelled with Spirulina platensis Biodiesel
Energy, 2020Co-Authors: Piyushi Nautiyal, M G Dastidar, K. A. Subramanian, Ashok KumarAbstract:Abstract The investigation was conducted with an aim to explore the potential of novel, less explored Biodiesel from Spirulina platensis Algae, which can be used as an alternate fuel for conventional diesel. The effect of Biodiesel on performance, combustion and emission characteristics of diesel engine was experimentally investigated. The ignition delay period declined to 7.3 °CA for B100 blend compared to 10 °CA for diesel. The heat release rate with Biodiesel-diesel blends was lower than base diesel. The duration of combustion for base diesel, B10, B20 and B100 Algae Biodiesel-diesel blends was found out to be 37.5 ° CA, 38 ° CA, 38 ° CA and 40 ° CA respectively. The carbon monoxide (CO), hydrocarbon (HC) and smoke emissions were reduced significantly as the percentage of Biodiesel in fuel blend is increased. The CO emission decreased from 3.10 g/kWh with diesel to 1.20 g/kWh for B100 at full load. The HC emission showed the decrease from 0.06 g/kWh with diesel to 0.04 g/kWh for B100 whereas smoke emission reduced from 0.7% with diesel to 0.6% for B100 at full load. NOx emission with Biodiesel and its blends increased significantly. NOx was 16.19 g/kWh and 13.3 g/kWh with B100 and base diesel.
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Experimental Investigation on Adsorption Properties of Biochar Derived from Algae Biomass Residue of Biodiesel Production
Environmental Processes, 2017Co-Authors: Piyushi Nautiyal, K. A. Subramanian, M G DastidarAbstract:The adsorption of methylene blue (MB) dye was investigated by utilizing biochar (BC) generated from residue (DB) of Spirulina platensis Algae biomass (AB) left after simultaneous oil extraction and transesterification for Biodiesel production. The motivation of the study was to reduce the overall downstream processing costs of Biodiesel which could help in strengthening its sustainability economically. The experiments for batch adsorption studies were performed to examine the adsorption rate of MB dye from aqueous solution using adsorbents such as BC, AC (commercially available activated carbon), DB and AB as a function of initial dye concentration, adsorbent dosage and pH of the solution. The better adsorption was observed in the case of AC and BC, i.e., 95.6% and 92.6% of dye removal, respectively, compared to other two absorbents, AB (85.2%) and DB (86.4%). The maximum removal of dye (92.6%) was obtained by BC at alkaline pH with adsorbent dosage of 0.2 g/100 mL and initial concentration of dye of 90 mg/L. The adsorption capacity, qo, of biochar was found out to be 57.80 mg/g. Comparing the results of all three isotherms, namely Langmuir, Freundlich and Temkin, the coefficient of determination for Freundlich model was found to be the highest, and thus, it was selected as the most suitable isotherm to describe the equilibrium mechanics of dye adsorption. The production of BC from DB highlights that the waste residue of Biodiesel industry can be alternatively used as adsorbent, enhancing the sustainability of Algae Biodiesel in an environmentally friendly manner.
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Adsorptive removal of dye using biochar derived from residual Algae after in-situ transesterification: Alternate use of waste of Biodiesel industry
Journal of Environmental Management, 2016Co-Authors: Piyushi Nautiyal, K. A. Subramanian, M G DastidarAbstract:The primary aim of this present study was to utilize the residual biomass (DB) of Spirulina platensis Algae, left after in-situ transesterification, for biochar preparation. This is a solid waste residue of Biodiesel industry. The biochar (BC) prepared was examined for its capacity to adsorb congo red dye from the aqueous solution. The results were compared with other adsorbents used in the study such as commercial activated carbon (AC), original Algae biomass (AB) and DB. The results of proximate analysis of BC showed the decrease in the percentage of volatile matter and an increase in fixed carbon content compared to DB. The physico-chemical properties of BC were studied using elemental analysis, SEM, FTIR and XRD techniques. The AC and BC adsorbents showed better performance in removing 85.4% and 82.6% of dye respectively from solution compared to AB (76.6%) and DB (78.1%). The effect of initial dye concentration, adsorbent dosage and pH of solution on the adsorption phenomena was studied by conducting the batch adsorption experiments. The highest specific uptake for biochar was observed at acidic pH of 2 with 0.2 g/100 ml of adsorbent dosage and 90 mg/l of initial concentration. The equilibrium adsorption data were fitted to three isotherms, namely Langmuir, Freundlich and Temkin. Freundlich model proved to show the best suited results with value of correlation coefficient of 99.12%. Thus, the application of DB for production of biochar as potential adsorbent supports sustainability of Algae Biodiesel.
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Production and characterization of Biodiesel from Algae
Fuel Processing Technology, 2014Co-Authors: Piyushi Nautiyal, K. A. Subramanian, M G DastidarAbstract:The feasibility of Biodiesel production from microAlgae as third generation Biodiesel feedstock was studied in the present investigation. The studies were conducted to evaluate the growth patterns of the Algae species i.e. Spirulina, Chlorella and pond water Algae. The oil was extracted from the Algae biomass and then transesterified. Simultaneous extraction and transesterification were also studied using different solvents. Maximum Biodiesel yield was obtained using simultaneous extraction and transesterification using hexane as a solvent. The systematic characterization of Algae biomass, Algae oil and Algae Biodiesel was carried out to establish the potential of microAlgae for Biodiesel production.
M. N. V. Ramesh - One of the best experts on this subject based on the ideXlab platform.
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Transesterification of Algae Oil using K2CO3/ZnO Heterogeneous Base Catalyst
Asian Journal of Chemistry, 2019Co-Authors: Jayashri Narayanan Nair, Yeditha Veera Venkata Satyanarayanamurthy, N.s.c. Chaitanya, M. N. V. RameshAbstract:The objective of the present work was to develop a heterogeneous base catalyst K2CO3/ZnO for transesterification of Algae oil. This catalyst was prepared by wet impregnation method calcinated at high temperature of 600 °C. The catalyst was characterized by X-ray diffraction technique. The crude Algae oil was degummed and its free fatty acid was reduced to 2 % by methanol treatment. Methanol was used to convert triglycerides to Biodiesel using K2CO3/ZnO. The doping of 30 % K2CO3 on ZnO calcined at 600 °C was studied on Biodiesel yield. The reaction parameters such as temperature, stirring rate, amount of catalyst, methanol to oil molar ratio on the yield of fatty acid methyl ester were investigated. Highest yield was obtained for 7 % catalyst, 9:1 methanol to molar ratio at 80 °C for 30 % K2CO3/ZnO. This study proved that the catalyst loading less than 5 % was unsuccessful in Biodiesel yield. The physio-chemical properties of the produced Algae Biodiesel was determined as per ASTM test procedures.
K. A. Subramanian - One of the best experts on this subject based on the ideXlab platform.
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Experimental assessment of performance, combustion and emissions of a compression ignition engine fuelled with Spirulina platensis Biodiesel
Energy, 2020Co-Authors: Piyushi Nautiyal, M G Dastidar, K. A. Subramanian, Ashok KumarAbstract:Abstract The investigation was conducted with an aim to explore the potential of novel, less explored Biodiesel from Spirulina platensis Algae, which can be used as an alternate fuel for conventional diesel. The effect of Biodiesel on performance, combustion and emission characteristics of diesel engine was experimentally investigated. The ignition delay period declined to 7.3 °CA for B100 blend compared to 10 °CA for diesel. The heat release rate with Biodiesel-diesel blends was lower than base diesel. The duration of combustion for base diesel, B10, B20 and B100 Algae Biodiesel-diesel blends was found out to be 37.5 ° CA, 38 ° CA, 38 ° CA and 40 ° CA respectively. The carbon monoxide (CO), hydrocarbon (HC) and smoke emissions were reduced significantly as the percentage of Biodiesel in fuel blend is increased. The CO emission decreased from 3.10 g/kWh with diesel to 1.20 g/kWh for B100 at full load. The HC emission showed the decrease from 0.06 g/kWh with diesel to 0.04 g/kWh for B100 whereas smoke emission reduced from 0.7% with diesel to 0.6% for B100 at full load. NOx emission with Biodiesel and its blends increased significantly. NOx was 16.19 g/kWh and 13.3 g/kWh with B100 and base diesel.
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Experimental Investigation on Adsorption Properties of Biochar Derived from Algae Biomass Residue of Biodiesel Production
Environmental Processes, 2017Co-Authors: Piyushi Nautiyal, K. A. Subramanian, M G DastidarAbstract:The adsorption of methylene blue (MB) dye was investigated by utilizing biochar (BC) generated from residue (DB) of Spirulina platensis Algae biomass (AB) left after simultaneous oil extraction and transesterification for Biodiesel production. The motivation of the study was to reduce the overall downstream processing costs of Biodiesel which could help in strengthening its sustainability economically. The experiments for batch adsorption studies were performed to examine the adsorption rate of MB dye from aqueous solution using adsorbents such as BC, AC (commercially available activated carbon), DB and AB as a function of initial dye concentration, adsorbent dosage and pH of the solution. The better adsorption was observed in the case of AC and BC, i.e., 95.6% and 92.6% of dye removal, respectively, compared to other two absorbents, AB (85.2%) and DB (86.4%). The maximum removal of dye (92.6%) was obtained by BC at alkaline pH with adsorbent dosage of 0.2 g/100 mL and initial concentration of dye of 90 mg/L. The adsorption capacity, qo, of biochar was found out to be 57.80 mg/g. Comparing the results of all three isotherms, namely Langmuir, Freundlich and Temkin, the coefficient of determination for Freundlich model was found to be the highest, and thus, it was selected as the most suitable isotherm to describe the equilibrium mechanics of dye adsorption. The production of BC from DB highlights that the waste residue of Biodiesel industry can be alternatively used as adsorbent, enhancing the sustainability of Algae Biodiesel in an environmentally friendly manner.
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Adsorptive removal of dye using biochar derived from residual Algae after in-situ transesterification: Alternate use of waste of Biodiesel industry
Journal of Environmental Management, 2016Co-Authors: Piyushi Nautiyal, K. A. Subramanian, M G DastidarAbstract:The primary aim of this present study was to utilize the residual biomass (DB) of Spirulina platensis Algae, left after in-situ transesterification, for biochar preparation. This is a solid waste residue of Biodiesel industry. The biochar (BC) prepared was examined for its capacity to adsorb congo red dye from the aqueous solution. The results were compared with other adsorbents used in the study such as commercial activated carbon (AC), original Algae biomass (AB) and DB. The results of proximate analysis of BC showed the decrease in the percentage of volatile matter and an increase in fixed carbon content compared to DB. The physico-chemical properties of BC were studied using elemental analysis, SEM, FTIR and XRD techniques. The AC and BC adsorbents showed better performance in removing 85.4% and 82.6% of dye respectively from solution compared to AB (76.6%) and DB (78.1%). The effect of initial dye concentration, adsorbent dosage and pH of solution on the adsorption phenomena was studied by conducting the batch adsorption experiments. The highest specific uptake for biochar was observed at acidic pH of 2 with 0.2 g/100 ml of adsorbent dosage and 90 mg/l of initial concentration. The equilibrium adsorption data were fitted to three isotherms, namely Langmuir, Freundlich and Temkin. Freundlich model proved to show the best suited results with value of correlation coefficient of 99.12%. Thus, the application of DB for production of biochar as potential adsorbent supports sustainability of Algae Biodiesel.
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Production and characterization of Biodiesel from Algae
Fuel Processing Technology, 2014Co-Authors: Piyushi Nautiyal, K. A. Subramanian, M G DastidarAbstract:The feasibility of Biodiesel production from microAlgae as third generation Biodiesel feedstock was studied in the present investigation. The studies were conducted to evaluate the growth patterns of the Algae species i.e. Spirulina, Chlorella and pond water Algae. The oil was extracted from the Algae biomass and then transesterified. Simultaneous extraction and transesterification were also studied using different solvents. Maximum Biodiesel yield was obtained using simultaneous extraction and transesterification using hexane as a solvent. The systematic characterization of Algae biomass, Algae oil and Algae Biodiesel was carried out to establish the potential of microAlgae for Biodiesel production.
Jayashri Narayanan Nair - One of the best experts on this subject based on the ideXlab platform.
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Combustion and emission characteristics of light duty diesel engine fueled with transesterified Algae Biodiesel by K2CO3/ZnO heterogeneous base catalyst
Energy Sources Part A: Recovery Utilization and Environmental Effects, 2020Co-Authors: Jayashri Narayanan Nair, Yeditha Veera Venkata Satyanarayanamurthy, Syed JavedAbstract:The present study analyzes performance of Algae Biodiesel in low-powered single-cylinder diesel engine running at rated constant speed of 1500 rpm and 210 bar fuel injection pressure. Algae biodies...
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Transesterification of Algae Oil using K2CO3/ZnO Heterogeneous Base Catalyst
Asian Journal of Chemistry, 2019Co-Authors: Jayashri Narayanan Nair, Yeditha Veera Venkata Satyanarayanamurthy, N.s.c. Chaitanya, M. N. V. RameshAbstract:The objective of the present work was to develop a heterogeneous base catalyst K2CO3/ZnO for transesterification of Algae oil. This catalyst was prepared by wet impregnation method calcinated at high temperature of 600 °C. The catalyst was characterized by X-ray diffraction technique. The crude Algae oil was degummed and its free fatty acid was reduced to 2 % by methanol treatment. Methanol was used to convert triglycerides to Biodiesel using K2CO3/ZnO. The doping of 30 % K2CO3 on ZnO calcined at 600 °C was studied on Biodiesel yield. The reaction parameters such as temperature, stirring rate, amount of catalyst, methanol to oil molar ratio on the yield of fatty acid methyl ester were investigated. Highest yield was obtained for 7 % catalyst, 9:1 methanol to molar ratio at 80 °C for 30 % K2CO3/ZnO. This study proved that the catalyst loading less than 5 % was unsuccessful in Biodiesel yield. The physio-chemical properties of the produced Algae Biodiesel was determined as per ASTM test procedures.
