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Mingde Yang - One of the best experts on this subject based on the ideXlab platform.
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Correction: Bio-oil production from sub- and supercritical water liquefaction of microalgae Dunaliella tertiolecta and related properties
Energy & Environmental Science, 2015Co-Authors: Shuping Zou, Mingde Yang, Junmao TongAbstract:Correction for ‘Bio-oil production from sub- and supercritical water liquefaction of microalgae Dunaliella tertiolecta and related properties’ by Shuping Zou et al., Energy Environ. Sci., 2010, 3, 1073–1078.
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direct liquefaction of Dunaliella tertiolecta for bio oil in sub supercritical ethanol water
Bioresource Technology, 2012Co-Authors: Yu Chen, Mingde Yang, Yulong Wu, Chun Li, Peiling Zhang, Zhen ChenAbstract:This paper presents bio-oil preparation by direct liquefaction of Dunaliella tertiolecta (D. tertiolecta) with sub/supercritical ethanol-water as the medium in a batch autoclave with high temperature and high pressure. The results indicated that ethanol and water showed synergistic effects on direct liquefaction of D. tertiolecta. The maximum bio-oil yield was 64.68%, with an optimal D. tertiolecta conversion of 98.24% in sub/supercritical ethanol-water. The detailed chemical compositional analysis of the bio-oil was performed using an EA, FT-IR, and GC-MS. The empirical formulas of the bio-oil obtained using the ethanol-water co-solvent (40%, v/v) and sole water as the reaction medium were CH(1.52)O(0.14)N(0.06) and CH(1.43)O(0.23)N(0.09), with calorific values of 34.96 and 29.80 MJ kg(-1), respectively. XPS and SEM results showed that ethanol-water is a very effective reaction medium in the liquefaction. A plausible reaction mechanism of the main chemical component in D. tertiolecta is proposed based on our results and the literatures.
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Direct liquefaction of Dunaliella tertiolecta for bio-oil in sub/supercritical ethanol-water.
Bioresource technology, 2012Co-Authors: Yu Chen, Mingde Yang, Peiling Zhang, Zhen Chen, Derun Hua, Ji LiuAbstract:This paper presents bio-oil preparation by direct liquefaction of Dunaliella tertiolecta (D. tertiolecta) with sub/supercritical ethanol-water as the medium in a batch autoclave with high temperature and high pressure. The results indicated that ethanol and water showed synergistic effects on direct liquefaction of D. tertiolecta. The maximum bio-oil yield was 64.68%, with an optimal D. tertiolecta conversion of 98.24% in sub/supercritical ethanol-water. The detailed chemical compositional analysis of the bio-oil was performed using an EA, FT-IR, and GC-MS. The empirical formulas of the bio-oil obtained using the ethanol-water co-solvent (40%, v/v) and sole water as the reaction medium were CH(1.52)O(0.14)N(0.06) and CH(1.43)O(0.23)N(0.09), with calorific values of 34.96 and 29.80 MJ kg(-1), respectively. XPS and SEM results showed that ethanol-water is a very effective reaction medium in the liquefaction. A plausible reaction mechanism of the main chemical component in D. tertiolecta is proposed based on our results and the literatures.
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bio oil production from sub and supercritical water liquefaction of microalgae Dunaliella tertiolecta and related properties
Energy and Environmental Science, 2010Co-Authors: Yulong Wu, Mingde Yang, Chun Li, Junmao TongAbstract:Microalgae Dunaliella tertiolecta were studied for production of bio-oil through a sub- and supercritical water liquefaction process. The effects of liquefaction temperature, holding time, and feedstock ratio on the yields of the products were investigated. The maximum bio-oil yield is about 36.9%, obtained at a reaction temperature of 360 °C and a holding time of 30 min, with a feedstock ratio of materials to water of 1 : 10. The various physical and chemical characteristics of bio-oil obtained under the most suitable conditions were determined, and detailed chemical compositional analysis of bio-oil was performed using an elemental analyzer, Fourier transform infrared spectroscopy, and gas chromatography–mass spectrometry. The empirical formula of bio-oil with a heating value of 26.62 MJ kg−1 was established as CH1.38O0.43N0.07, and bio-oil was composed of hexadecanoic acid, palmitamide, and fatty acid methyl ester. Overall, the bio-oil obtained from microalgae Dunaliella tertiolecta were presented as a potentially valuable and environmentally friendly feedstock candidate for biofuels and chemicals.
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thermochemical catalytic liquefaction of the marine microalgae Dunaliella tertiolecta and characterization of bio oils
Energy & Fuels, 2009Co-Authors: Yulong Wu, Mingde Yang, Chun Li, Junmao TongAbstract:Thermochemical catalytic liquefaction (TCL) of the marine microalgae Dunaliella tertiolecta was performed in ethylene glycol acidified with H2SO4 as a catalyst. The mathematical model for predicting the liquefaction yield was set up by a central composite rotatable design (CCRD) and response surface analysis (RSA). A total of 23 individual experiments were conducted to study the effect of H2SO4 concentration, reaction temperature, and reaction time on the liquidation yield. From a regression analysis, the conversion yield of microalgae cells into liquid is simply expressed as a function of the operating variables by polynomial containing quadratic terms. The highest liquefaction yield of microalgae would be 97.05%, at the following optimized reaction conditions: an amount of added H2SO4 of 2.4%, and a reaction temperature of 170 °C, with a 33 min reaction time. To put bio-oils into wide application, the various physical and chemical characteristics of bio-oils at the conditions of the maximum product yiel...
Junmao Tong - One of the best experts on this subject based on the ideXlab platform.
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Correction: Bio-oil production from sub- and supercritical water liquefaction of microalgae Dunaliella tertiolecta and related properties
Energy & Environmental Science, 2015Co-Authors: Shuping Zou, Mingde Yang, Junmao TongAbstract:Correction for ‘Bio-oil production from sub- and supercritical water liquefaction of microalgae Dunaliella tertiolecta and related properties’ by Shuping Zou et al., Energy Environ. Sci., 2010, 3, 1073–1078.
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bio oil production from sub and supercritical water liquefaction of microalgae Dunaliella tertiolecta and related properties
Energy and Environmental Science, 2010Co-Authors: Yulong Wu, Mingde Yang, Chun Li, Junmao TongAbstract:Microalgae Dunaliella tertiolecta were studied for production of bio-oil through a sub- and supercritical water liquefaction process. The effects of liquefaction temperature, holding time, and feedstock ratio on the yields of the products were investigated. The maximum bio-oil yield is about 36.9%, obtained at a reaction temperature of 360 °C and a holding time of 30 min, with a feedstock ratio of materials to water of 1 : 10. The various physical and chemical characteristics of bio-oil obtained under the most suitable conditions were determined, and detailed chemical compositional analysis of bio-oil was performed using an elemental analyzer, Fourier transform infrared spectroscopy, and gas chromatography–mass spectrometry. The empirical formula of bio-oil with a heating value of 26.62 MJ kg−1 was established as CH1.38O0.43N0.07, and bio-oil was composed of hexadecanoic acid, palmitamide, and fatty acid methyl ester. Overall, the bio-oil obtained from microalgae Dunaliella tertiolecta were presented as a potentially valuable and environmentally friendly feedstock candidate for biofuels and chemicals.
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thermochemical catalytic liquefaction of the marine microalgae Dunaliella tertiolecta and characterization of bio oils
Energy & Fuels, 2009Co-Authors: Yulong Wu, Mingde Yang, Chun Li, Junmao TongAbstract:Thermochemical catalytic liquefaction (TCL) of the marine microalgae Dunaliella tertiolecta was performed in ethylene glycol acidified with H2SO4 as a catalyst. The mathematical model for predicting the liquefaction yield was set up by a central composite rotatable design (CCRD) and response surface analysis (RSA). A total of 23 individual experiments were conducted to study the effect of H2SO4 concentration, reaction temperature, and reaction time on the liquidation yield. From a regression analysis, the conversion yield of microalgae cells into liquid is simply expressed as a function of the operating variables by polynomial containing quadratic terms. The highest liquefaction yield of microalgae would be 97.05%, at the following optimized reaction conditions: an amount of added H2SO4 of 2.4%, and a reaction temperature of 170 °C, with a 33 min reaction time. To put bio-oils into wide application, the various physical and chemical characteristics of bio-oils at the conditions of the maximum product yiel...
Yulong Wu - One of the best experts on this subject based on the ideXlab platform.
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direct liquefaction of Dunaliella tertiolecta for bio oil in sub supercritical ethanol water
Bioresource Technology, 2012Co-Authors: Yu Chen, Mingde Yang, Yulong Wu, Chun Li, Peiling Zhang, Zhen ChenAbstract:This paper presents bio-oil preparation by direct liquefaction of Dunaliella tertiolecta (D. tertiolecta) with sub/supercritical ethanol-water as the medium in a batch autoclave with high temperature and high pressure. The results indicated that ethanol and water showed synergistic effects on direct liquefaction of D. tertiolecta. The maximum bio-oil yield was 64.68%, with an optimal D. tertiolecta conversion of 98.24% in sub/supercritical ethanol-water. The detailed chemical compositional analysis of the bio-oil was performed using an EA, FT-IR, and GC-MS. The empirical formulas of the bio-oil obtained using the ethanol-water co-solvent (40%, v/v) and sole water as the reaction medium were CH(1.52)O(0.14)N(0.06) and CH(1.43)O(0.23)N(0.09), with calorific values of 34.96 and 29.80 MJ kg(-1), respectively. XPS and SEM results showed that ethanol-water is a very effective reaction medium in the liquefaction. A plausible reaction mechanism of the main chemical component in D. tertiolecta is proposed based on our results and the literatures.
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bio oil production from sub and supercritical water liquefaction of microalgae Dunaliella tertiolecta and related properties
Energy and Environmental Science, 2010Co-Authors: Yulong Wu, Mingde Yang, Chun Li, Junmao TongAbstract:Microalgae Dunaliella tertiolecta were studied for production of bio-oil through a sub- and supercritical water liquefaction process. The effects of liquefaction temperature, holding time, and feedstock ratio on the yields of the products were investigated. The maximum bio-oil yield is about 36.9%, obtained at a reaction temperature of 360 °C and a holding time of 30 min, with a feedstock ratio of materials to water of 1 : 10. The various physical and chemical characteristics of bio-oil obtained under the most suitable conditions were determined, and detailed chemical compositional analysis of bio-oil was performed using an elemental analyzer, Fourier transform infrared spectroscopy, and gas chromatography–mass spectrometry. The empirical formula of bio-oil with a heating value of 26.62 MJ kg−1 was established as CH1.38O0.43N0.07, and bio-oil was composed of hexadecanoic acid, palmitamide, and fatty acid methyl ester. Overall, the bio-oil obtained from microalgae Dunaliella tertiolecta were presented as a potentially valuable and environmentally friendly feedstock candidate for biofuels and chemicals.
-
thermochemical catalytic liquefaction of the marine microalgae Dunaliella tertiolecta and characterization of bio oils
Energy & Fuels, 2009Co-Authors: Yulong Wu, Mingde Yang, Chun Li, Junmao TongAbstract:Thermochemical catalytic liquefaction (TCL) of the marine microalgae Dunaliella tertiolecta was performed in ethylene glycol acidified with H2SO4 as a catalyst. The mathematical model for predicting the liquefaction yield was set up by a central composite rotatable design (CCRD) and response surface analysis (RSA). A total of 23 individual experiments were conducted to study the effect of H2SO4 concentration, reaction temperature, and reaction time on the liquidation yield. From a regression analysis, the conversion yield of microalgae cells into liquid is simply expressed as a function of the operating variables by polynomial containing quadratic terms. The highest liquefaction yield of microalgae would be 97.05%, at the following optimized reaction conditions: an amount of added H2SO4 of 2.4%, and a reaction temperature of 170 °C, with a 33 min reaction time. To put bio-oils into wide application, the various physical and chemical characteristics of bio-oils at the conditions of the maximum product yiel...
Zhen Chen - One of the best experts on this subject based on the ideXlab platform.
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direct liquefaction of Dunaliella tertiolecta for bio oil in sub supercritical ethanol water
Bioresource Technology, 2012Co-Authors: Yu Chen, Mingde Yang, Yulong Wu, Chun Li, Peiling Zhang, Zhen ChenAbstract:This paper presents bio-oil preparation by direct liquefaction of Dunaliella tertiolecta (D. tertiolecta) with sub/supercritical ethanol-water as the medium in a batch autoclave with high temperature and high pressure. The results indicated that ethanol and water showed synergistic effects on direct liquefaction of D. tertiolecta. The maximum bio-oil yield was 64.68%, with an optimal D. tertiolecta conversion of 98.24% in sub/supercritical ethanol-water. The detailed chemical compositional analysis of the bio-oil was performed using an EA, FT-IR, and GC-MS. The empirical formulas of the bio-oil obtained using the ethanol-water co-solvent (40%, v/v) and sole water as the reaction medium were CH(1.52)O(0.14)N(0.06) and CH(1.43)O(0.23)N(0.09), with calorific values of 34.96 and 29.80 MJ kg(-1), respectively. XPS and SEM results showed that ethanol-water is a very effective reaction medium in the liquefaction. A plausible reaction mechanism of the main chemical component in D. tertiolecta is proposed based on our results and the literatures.
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Direct liquefaction of Dunaliella tertiolecta for bio-oil in sub/supercritical ethanol-water.
Bioresource technology, 2012Co-Authors: Yu Chen, Mingde Yang, Peiling Zhang, Zhen Chen, Derun Hua, Ji LiuAbstract:This paper presents bio-oil preparation by direct liquefaction of Dunaliella tertiolecta (D. tertiolecta) with sub/supercritical ethanol-water as the medium in a batch autoclave with high temperature and high pressure. The results indicated that ethanol and water showed synergistic effects on direct liquefaction of D. tertiolecta. The maximum bio-oil yield was 64.68%, with an optimal D. tertiolecta conversion of 98.24% in sub/supercritical ethanol-water. The detailed chemical compositional analysis of the bio-oil was performed using an EA, FT-IR, and GC-MS. The empirical formulas of the bio-oil obtained using the ethanol-water co-solvent (40%, v/v) and sole water as the reaction medium were CH(1.52)O(0.14)N(0.06) and CH(1.43)O(0.23)N(0.09), with calorific values of 34.96 and 29.80 MJ kg(-1), respectively. XPS and SEM results showed that ethanol-water is a very effective reaction medium in the liquefaction. A plausible reaction mechanism of the main chemical component in D. tertiolecta is proposed based on our results and the literatures.
Peiling Zhang - One of the best experts on this subject based on the ideXlab platform.
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direct liquefaction of Dunaliella tertiolecta for bio oil in sub supercritical ethanol water
Bioresource Technology, 2012Co-Authors: Yu Chen, Mingde Yang, Yulong Wu, Chun Li, Peiling Zhang, Zhen ChenAbstract:This paper presents bio-oil preparation by direct liquefaction of Dunaliella tertiolecta (D. tertiolecta) with sub/supercritical ethanol-water as the medium in a batch autoclave with high temperature and high pressure. The results indicated that ethanol and water showed synergistic effects on direct liquefaction of D. tertiolecta. The maximum bio-oil yield was 64.68%, with an optimal D. tertiolecta conversion of 98.24% in sub/supercritical ethanol-water. The detailed chemical compositional analysis of the bio-oil was performed using an EA, FT-IR, and GC-MS. The empirical formulas of the bio-oil obtained using the ethanol-water co-solvent (40%, v/v) and sole water as the reaction medium were CH(1.52)O(0.14)N(0.06) and CH(1.43)O(0.23)N(0.09), with calorific values of 34.96 and 29.80 MJ kg(-1), respectively. XPS and SEM results showed that ethanol-water is a very effective reaction medium in the liquefaction. A plausible reaction mechanism of the main chemical component in D. tertiolecta is proposed based on our results and the literatures.
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Direct liquefaction of Dunaliella tertiolecta for bio-oil in sub/supercritical ethanol-water.
Bioresource technology, 2012Co-Authors: Yu Chen, Mingde Yang, Peiling Zhang, Zhen Chen, Derun Hua, Ji LiuAbstract:This paper presents bio-oil preparation by direct liquefaction of Dunaliella tertiolecta (D. tertiolecta) with sub/supercritical ethanol-water as the medium in a batch autoclave with high temperature and high pressure. The results indicated that ethanol and water showed synergistic effects on direct liquefaction of D. tertiolecta. The maximum bio-oil yield was 64.68%, with an optimal D. tertiolecta conversion of 98.24% in sub/supercritical ethanol-water. The detailed chemical compositional analysis of the bio-oil was performed using an EA, FT-IR, and GC-MS. The empirical formulas of the bio-oil obtained using the ethanol-water co-solvent (40%, v/v) and sole water as the reaction medium were CH(1.52)O(0.14)N(0.06) and CH(1.43)O(0.23)N(0.09), with calorific values of 34.96 and 29.80 MJ kg(-1), respectively. XPS and SEM results showed that ethanol-water is a very effective reaction medium in the liquefaction. A plausible reaction mechanism of the main chemical component in D. tertiolecta is proposed based on our results and the literatures.
