The Experts below are selected from a list of 358170 Experts worldwide ranked by ideXlab platform
Roge Rua - One of the best experts on this subject based on the ideXlab platform.
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fast microwave assisted catalytic co pyrolysis of corn stover and scum for bio oil Production with cao and hzsm 5 as the catalyst
Bioresource Technology, 2016Co-Authors: Shiyu Liu, Yanling Cheng, Qinglong Xie, Yuhua Liu, Paul Che, Roge Rua, O ZhangAbstract:This study investigated fast microwave-assisted catalytic co-pyrolysis of corn stover and scum for Bio-Oil Production with CaO and HZSM-5 as the catalyst. Effects of reaction temperature, CaO/HZSM-5 ratio, and corn stover/scum ratio on co-pyrolysis product fractional yields and selectivity were investigated. Results showed that co-pyrolysis temperature was selected as 550°C, which provides the maximum Bio-Oil and aromatic yields. Mixed CaO and HZSM-5 catalyst with the weight ratio of 1:4 increased the aromatic yield to 35.77 wt.% of feedstock, which was 17% higher than that with HZSM-5 alone. Scum as the hydrogen donor, had a significant synergistic effect with corn stover to promote the Production of Bio-Oil and aromatic hydrocarbons when the H/C(eff) value exceeded 1. The maximum yield of aromatic hydrocarbons (29.3 wt.%) were obtained when the optimal corn stover to scum ratio was 1:2.
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microwave assisted catalytic fast pyrolysis of biomass for bio oil Production using chemical vapor deposition modified hzsm 5 catalyst
Bioresource Technology, 2015Co-Authors: Zhaoping Zhong, Paul Che, O Zhang, Roge RuaAbstract:Chemical vapor deposition with tetra-ethyl-orthosilicate as the modifier was applied to deposit the external acid sites of HZSM-5, and the modified HZSM-5 samples were used for the microwave-assisted catalytic fast pyrolysis (MACFP) of biomass for Bio-Oil Production. The experimental results showed that the external acid sites of HZSM-5 decreased significantly when SiO2 deposited amount increased from 0% to 5.9%. For product distribution, the coke yield decreased, the oil fraction yield decreased at first and then increased, and the yields of water and gas first increased and then decreased over the range of SiO2 deposited amount studied. For chemical compositions in oil fraction, the relative contents of aliphatic hydrocarbons, aromatic hydrocarbons and oxygen-containing aromatic compounds first increased to maximum values and then decreased, while the relative content of oxygen-containing aliphatic compounds first decreased and then increased with increasing SiO2 deposited amount.
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fast microwave assisted catalytic co pyrolysis of microalgae and scum for bio oil Production
Fuel, 2015Co-Authors: Qinglong Xie, Yanling Cheng, Shiyu Liu, Yuhua Liu, Paul Che, Mi Addy, O Zhang, Roge RuaAbstract:Abstract In this study, fast microwave-assisted catalytic co-pyrolysis of microalgae and scum on HZSM-5 catalyst for Bio-Oil Production was investigated. The effects of co-pyrolysis temperature, catalyst to feed ratio, and microalgae to scum ratio on Bio-Oil yield and composition were examined. Experimental results show that temperature had great influence on the co-pyrolysis process. The optimal temperature was 550 °C since the maximum Bio-Oil yield and highest proportion of aromatic hydrocarbons in the Bio-Oil were obtained at this temperature. The Bio-Oil yield decreased when catalyst was used, but the Production of aromatic hydrocarbons was significantly promoted when the catalyst to feed ratio increased from 1:1 to 2:1. Co-feeding of scum could improve the Bio-Oil and aromatics Production, while the optimal microalgae to scum ratio was 1:2 from the perspective of Bio-Oil quality. The synergistic effect between microalgae and scum during the co-pyrolysis process became significant only when the effective hydrogen index (EHI) of feedstock was larger than about 0.7.
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fast microwave assisted catalytic pyrolysis of sewage sludge for bio oil Production
Bioresource Technology, 2014Co-Authors: Qinglong Xie, Yanling Cheng, Peng Peng, Shiyu Liu, Yuhua Liu, Paul Che, Roge RuaAbstract:Abstract In this study, fast microwave-assisted catalytic pyrolysis of sewage sludge was investigated for Bio-Oil Production, with HZSM-5 as the catalyst. Pyrolysis temperature and catalyst to feed ratio were examined for their effects on Bio-Oil yield and composition. Experimental results showed that microwave is an effective heating method for sewage sludge pyrolysis. Temperature has great influence on the pyrolysis process. The maximum Bio-Oil yield and the lowest proportions of oxygen- and nitrogen-containing compounds in the Bio-Oil were obtained at 550 °C. The oil yield decreased when catalyst was used, but the proportions of oxygen- and nitrogen-containing compounds were significantly reduced when the catalyst to feed ratio increased from 1:1 to 2:1. Essential mineral elements were concentrated in the bio-char after pyrolysis, which could be used as a soil amendment in place of fertilizer. Results of XRD analyses demonstrated that HZSM-5 catalyst exhibited good stability during the microwave-assisted pyrolysis of sewage sludge.
Yanling Cheng - One of the best experts on this subject based on the ideXlab platform.
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Recent advances in improving lignocellulosic biomass-based Bio-Oil Production
Journal of Analytical and Applied Pyrolysis, 2020Co-Authors: Leilei Dai, Nan Zhou, Wenyi Deng, Yanling Cheng, Yunpu Wang, Yuhuan Liu, Kirk Cobb, Hanwu Lei, Paul ChenAbstract:Abstract Developing pyrolysis technology to produce Bio-Oil from lignocellulosic biomass is a promising pathway for diversifying energy supply and controlling carbon emissions. Improving Bio-Oil Production is a key research topic due to low-quality and low cost feedstock, and high demand for products. Understanding the multiscale complexity in the conversion process including biomass structure and the interactive reactions is crucial for designing a feasible and cost-effective pyrolysis process. This review provides a fundamental summary for the current knowledge. Biomass structure and its pyrolysis behaviors are firstly discussed to understand fundamental reaction chemistry in this process. Effects of pyrolysis process parameters on product yield and distribution are then reviewed. By analyzing recent studies, effects of different pretreatment techniques including torrefaction, hydrothermal pretreatment, and acid pretreatment on improving Bio-Oil Production are reviewed. An emphasis is placed on the advanced catalytic pyrolysis for selective Production of valuable products. Based on zeolite and metal oxide catalysts, chemical compositions of Bio-Oils can be more clearly understood and selective Production of desirable products is more reliable. Co-pyrolysis of biomass with polymers to improve the Bio-Oil yield and quality is also summarized. The challenges and future research directions for effective pyrolysis processes are also proposed, which may lead to future important breakthroughs.
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Bio-Oil Production from sequential two-step catalytic fast microwave-assisted biomass pyrolysis
Fuel, 2017Co-Authors: Shiyu Liu, Nan Zhou, Yanling Cheng, Yuhuan Liu, Liangliang Fan, Yaning Zhang, Gaoyou Tian, Xindi Zhu, Wang Yunpu, Paul ChenAbstract:Abstract A sequential two-step fast microwave-assisted pyrolysis (fMAP) for high quality Bio-Oil Production was investigated. In the process, fMAP was followed by catalytic cracking and upgrading using a packed bed catalyst reactor with HZSM-5 as the catalyst. Effects of pyrolysis temperature, catalyst loading, and catalyst bed temperature on the product distribution were investigated. Results showed that maximum Bio-Oil and aromatic hydrocarbons yields were obtained when pyrolysis temperature reached 550 °C With the increase in the catalyst loading, the Bio-Oil yield decreased linearly while the aromatic hydrocarbons yield increased. The catalyst bed temperature also has a significant effect on the product chemical profiles. The aromatic hydrocarbons proportion of the Bio-Oil was found to increase with increasing catalyst bed temperature and reached its maximum of 26.20% at 425 °C. In addition, coke yield increased with increasing catalyst to biomass ratio and decreasing catalyst bed temperature.
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fast microwave assisted catalytic co pyrolysis of corn stover and scum for bio oil Production with cao and hzsm 5 as the catalyst
Bioresource Technology, 2016Co-Authors: Shiyu Liu, Yanling Cheng, Qinglong Xie, Yuhua Liu, Paul Che, Roge Rua, O ZhangAbstract:This study investigated fast microwave-assisted catalytic co-pyrolysis of corn stover and scum for Bio-Oil Production with CaO and HZSM-5 as the catalyst. Effects of reaction temperature, CaO/HZSM-5 ratio, and corn stover/scum ratio on co-pyrolysis product fractional yields and selectivity were investigated. Results showed that co-pyrolysis temperature was selected as 550°C, which provides the maximum Bio-Oil and aromatic yields. Mixed CaO and HZSM-5 catalyst with the weight ratio of 1:4 increased the aromatic yield to 35.77 wt.% of feedstock, which was 17% higher than that with HZSM-5 alone. Scum as the hydrogen donor, had a significant synergistic effect with corn stover to promote the Production of Bio-Oil and aromatic hydrocarbons when the H/C(eff) value exceeded 1. The maximum yield of aromatic hydrocarbons (29.3 wt.%) were obtained when the optimal corn stover to scum ratio was 1:2.
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fast microwave assisted catalytic co pyrolysis of microalgae and scum for bio oil Production
Fuel, 2015Co-Authors: Qinglong Xie, Yanling Cheng, Shiyu Liu, Yuhua Liu, Paul Che, Mi Addy, O Zhang, Roge RuaAbstract:Abstract In this study, fast microwave-assisted catalytic co-pyrolysis of microalgae and scum on HZSM-5 catalyst for Bio-Oil Production was investigated. The effects of co-pyrolysis temperature, catalyst to feed ratio, and microalgae to scum ratio on Bio-Oil yield and composition were examined. Experimental results show that temperature had great influence on the co-pyrolysis process. The optimal temperature was 550 °C since the maximum Bio-Oil yield and highest proportion of aromatic hydrocarbons in the Bio-Oil were obtained at this temperature. The Bio-Oil yield decreased when catalyst was used, but the Production of aromatic hydrocarbons was significantly promoted when the catalyst to feed ratio increased from 1:1 to 2:1. Co-feeding of scum could improve the Bio-Oil and aromatics Production, while the optimal microalgae to scum ratio was 1:2 from the perspective of Bio-Oil quality. The synergistic effect between microalgae and scum during the co-pyrolysis process became significant only when the effective hydrogen index (EHI) of feedstock was larger than about 0.7.
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fast microwave assisted catalytic pyrolysis of sewage sludge for bio oil Production
Bioresource Technology, 2014Co-Authors: Qinglong Xie, Yanling Cheng, Peng Peng, Shiyu Liu, Yuhua Liu, Paul Che, Roge RuaAbstract:Abstract In this study, fast microwave-assisted catalytic pyrolysis of sewage sludge was investigated for Bio-Oil Production, with HZSM-5 as the catalyst. Pyrolysis temperature and catalyst to feed ratio were examined for their effects on Bio-Oil yield and composition. Experimental results showed that microwave is an effective heating method for sewage sludge pyrolysis. Temperature has great influence on the pyrolysis process. The maximum Bio-Oil yield and the lowest proportions of oxygen- and nitrogen-containing compounds in the Bio-Oil were obtained at 550 °C. The oil yield decreased when catalyst was used, but the proportions of oxygen- and nitrogen-containing compounds were significantly reduced when the catalyst to feed ratio increased from 1:1 to 2:1. Essential mineral elements were concentrated in the bio-char after pyrolysis, which could be used as a soil amendment in place of fertilizer. Results of XRD analyses demonstrated that HZSM-5 catalyst exhibited good stability during the microwave-assisted pyrolysis of sewage sludge.
Yuhua Liu - One of the best experts on this subject based on the ideXlab platform.
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fast microwave assisted catalytic co pyrolysis of corn stover and scum for bio oil Production with cao and hzsm 5 as the catalyst
Bioresource Technology, 2016Co-Authors: Shiyu Liu, Yanling Cheng, Qinglong Xie, Yuhua Liu, Paul Che, Roge Rua, O ZhangAbstract:This study investigated fast microwave-assisted catalytic co-pyrolysis of corn stover and scum for Bio-Oil Production with CaO and HZSM-5 as the catalyst. Effects of reaction temperature, CaO/HZSM-5 ratio, and corn stover/scum ratio on co-pyrolysis product fractional yields and selectivity were investigated. Results showed that co-pyrolysis temperature was selected as 550°C, which provides the maximum Bio-Oil and aromatic yields. Mixed CaO and HZSM-5 catalyst with the weight ratio of 1:4 increased the aromatic yield to 35.77 wt.% of feedstock, which was 17% higher than that with HZSM-5 alone. Scum as the hydrogen donor, had a significant synergistic effect with corn stover to promote the Production of Bio-Oil and aromatic hydrocarbons when the H/C(eff) value exceeded 1. The maximum yield of aromatic hydrocarbons (29.3 wt.%) were obtained when the optimal corn stover to scum ratio was 1:2.
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fast microwave assisted catalytic co pyrolysis of microalgae and scum for bio oil Production
Fuel, 2015Co-Authors: Qinglong Xie, Yanling Cheng, Shiyu Liu, Yuhua Liu, Paul Che, Mi Addy, O Zhang, Roge RuaAbstract:Abstract In this study, fast microwave-assisted catalytic co-pyrolysis of microalgae and scum on HZSM-5 catalyst for Bio-Oil Production was investigated. The effects of co-pyrolysis temperature, catalyst to feed ratio, and microalgae to scum ratio on Bio-Oil yield and composition were examined. Experimental results show that temperature had great influence on the co-pyrolysis process. The optimal temperature was 550 °C since the maximum Bio-Oil yield and highest proportion of aromatic hydrocarbons in the Bio-Oil were obtained at this temperature. The Bio-Oil yield decreased when catalyst was used, but the Production of aromatic hydrocarbons was significantly promoted when the catalyst to feed ratio increased from 1:1 to 2:1. Co-feeding of scum could improve the Bio-Oil and aromatics Production, while the optimal microalgae to scum ratio was 1:2 from the perspective of Bio-Oil quality. The synergistic effect between microalgae and scum during the co-pyrolysis process became significant only when the effective hydrogen index (EHI) of feedstock was larger than about 0.7.
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fast microwave assisted catalytic pyrolysis of sewage sludge for bio oil Production
Bioresource Technology, 2014Co-Authors: Qinglong Xie, Yanling Cheng, Peng Peng, Shiyu Liu, Yuhua Liu, Paul Che, Roge RuaAbstract:Abstract In this study, fast microwave-assisted catalytic pyrolysis of sewage sludge was investigated for Bio-Oil Production, with HZSM-5 as the catalyst. Pyrolysis temperature and catalyst to feed ratio were examined for their effects on Bio-Oil yield and composition. Experimental results showed that microwave is an effective heating method for sewage sludge pyrolysis. Temperature has great influence on the pyrolysis process. The maximum Bio-Oil yield and the lowest proportions of oxygen- and nitrogen-containing compounds in the Bio-Oil were obtained at 550 °C. The oil yield decreased when catalyst was used, but the proportions of oxygen- and nitrogen-containing compounds were significantly reduced when the catalyst to feed ratio increased from 1:1 to 2:1. Essential mineral elements were concentrated in the bio-char after pyrolysis, which could be used as a soil amendment in place of fertilizer. Results of XRD analyses demonstrated that HZSM-5 catalyst exhibited good stability during the microwave-assisted pyrolysis of sewage sludge.
Shiyu Liu - One of the best experts on this subject based on the ideXlab platform.
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Bio-Oil Production from sequential two-step catalytic fast microwave-assisted biomass pyrolysis
Fuel, 2017Co-Authors: Shiyu Liu, Nan Zhou, Yanling Cheng, Yuhuan Liu, Liangliang Fan, Yaning Zhang, Gaoyou Tian, Xindi Zhu, Wang Yunpu, Paul ChenAbstract:Abstract A sequential two-step fast microwave-assisted pyrolysis (fMAP) for high quality Bio-Oil Production was investigated. In the process, fMAP was followed by catalytic cracking and upgrading using a packed bed catalyst reactor with HZSM-5 as the catalyst. Effects of pyrolysis temperature, catalyst loading, and catalyst bed temperature on the product distribution were investigated. Results showed that maximum Bio-Oil and aromatic hydrocarbons yields were obtained when pyrolysis temperature reached 550 °C With the increase in the catalyst loading, the Bio-Oil yield decreased linearly while the aromatic hydrocarbons yield increased. The catalyst bed temperature also has a significant effect on the product chemical profiles. The aromatic hydrocarbons proportion of the Bio-Oil was found to increase with increasing catalyst bed temperature and reached its maximum of 26.20% at 425 °C. In addition, coke yield increased with increasing catalyst to biomass ratio and decreasing catalyst bed temperature.
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fast microwave assisted catalytic co pyrolysis of corn stover and scum for bio oil Production with cao and hzsm 5 as the catalyst
Bioresource Technology, 2016Co-Authors: Shiyu Liu, Yanling Cheng, Qinglong Xie, Yuhua Liu, Paul Che, Roge Rua, O ZhangAbstract:This study investigated fast microwave-assisted catalytic co-pyrolysis of corn stover and scum for Bio-Oil Production with CaO and HZSM-5 as the catalyst. Effects of reaction temperature, CaO/HZSM-5 ratio, and corn stover/scum ratio on co-pyrolysis product fractional yields and selectivity were investigated. Results showed that co-pyrolysis temperature was selected as 550°C, which provides the maximum Bio-Oil and aromatic yields. Mixed CaO and HZSM-5 catalyst with the weight ratio of 1:4 increased the aromatic yield to 35.77 wt.% of feedstock, which was 17% higher than that with HZSM-5 alone. Scum as the hydrogen donor, had a significant synergistic effect with corn stover to promote the Production of Bio-Oil and aromatic hydrocarbons when the H/C(eff) value exceeded 1. The maximum yield of aromatic hydrocarbons (29.3 wt.%) were obtained when the optimal corn stover to scum ratio was 1:2.
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Two-step fast microwave-assisted pyrolysis of biomass for Bio-Oil Production using microwave absorbent and HZSM-5 catalyst
Journal of environmental sciences (China), 2016Co-Authors: Bo Zhang, Zhaoping Zhong, Qinglong Xie, Shiyu Liu, Roger RuanAbstract:A novel technology of two-step fast microwave-assisted pyrolysis (fMAP) of corn stover for Bio-Oil Production was investigated in the presence of microwave absorbent (SiC) and HZSM-5 catalyst. Effects of fMAP temperature and catalyst-to-biomass ratio on Bio-Oil yield and chemical components were examined. The results showed that this technology, employing microwave, microwave absorbent and HZSM-5 catalyst, was effective and promising for biomass fast pyrolysis. The fMAP temperature of 500°C was considered the optimum condition for maximum yield and best quality of Bio-Oil. Besides, the Bio-Oil yield decreased linearly and the chemical components in Bio-Oil were improved sequentially with the increase of catalyst-to-biomass ratio from 1:100 to 1:20. The elemental compositions of bio-char were also determined. Additionally, compared to one-step fMAP process, two-step fMAP could promote the Bio-Oil quality with a smaller catalyst-to-biomass ratio.
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fast microwave assisted catalytic co pyrolysis of microalgae and scum for bio oil Production
Fuel, 2015Co-Authors: Qinglong Xie, Yanling Cheng, Shiyu Liu, Yuhua Liu, Paul Che, Mi Addy, O Zhang, Roge RuaAbstract:Abstract In this study, fast microwave-assisted catalytic co-pyrolysis of microalgae and scum on HZSM-5 catalyst for Bio-Oil Production was investigated. The effects of co-pyrolysis temperature, catalyst to feed ratio, and microalgae to scum ratio on Bio-Oil yield and composition were examined. Experimental results show that temperature had great influence on the co-pyrolysis process. The optimal temperature was 550 °C since the maximum Bio-Oil yield and highest proportion of aromatic hydrocarbons in the Bio-Oil were obtained at this temperature. The Bio-Oil yield decreased when catalyst was used, but the Production of aromatic hydrocarbons was significantly promoted when the catalyst to feed ratio increased from 1:1 to 2:1. Co-feeding of scum could improve the Bio-Oil and aromatics Production, while the optimal microalgae to scum ratio was 1:2 from the perspective of Bio-Oil quality. The synergistic effect between microalgae and scum during the co-pyrolysis process became significant only when the effective hydrogen index (EHI) of feedstock was larger than about 0.7.
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fast microwave assisted catalytic pyrolysis of sewage sludge for bio oil Production
Bioresource Technology, 2014Co-Authors: Qinglong Xie, Yanling Cheng, Peng Peng, Shiyu Liu, Yuhua Liu, Paul Che, Roge RuaAbstract:Abstract In this study, fast microwave-assisted catalytic pyrolysis of sewage sludge was investigated for Bio-Oil Production, with HZSM-5 as the catalyst. Pyrolysis temperature and catalyst to feed ratio were examined for their effects on Bio-Oil yield and composition. Experimental results showed that microwave is an effective heating method for sewage sludge pyrolysis. Temperature has great influence on the pyrolysis process. The maximum Bio-Oil yield and the lowest proportions of oxygen- and nitrogen-containing compounds in the Bio-Oil were obtained at 550 °C. The oil yield decreased when catalyst was used, but the proportions of oxygen- and nitrogen-containing compounds were significantly reduced when the catalyst to feed ratio increased from 1:1 to 2:1. Essential mineral elements were concentrated in the bio-char after pyrolysis, which could be used as a soil amendment in place of fertilizer. Results of XRD analyses demonstrated that HZSM-5 catalyst exhibited good stability during the microwave-assisted pyrolysis of sewage sludge.
Roger Ruan - One of the best experts on this subject based on the ideXlab platform.
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Bio-Oil Production from sequential two-step microwave-assisted catalytic fast pyrolysis of water hyacinth using Ce-doped γ-Al2O3/ZrO2 composite mesoporous catalyst.
Journal of Analytical and Applied Pyrolysis, 2018Co-Authors: Bo Zhang, Zhaoping Zhong, Zeyu Xue, Roger RuanAbstract:Abstract A sequential two-step microwave-assisted catalytic fast pyrolysis (MACFP) of water hyacinth for hydrocarbon-rich Bio-Oil Production is studied. This newly developed technique is characterized by microwave-assisted fast pyrolysis followed by catalytic upgrading using an additional catalyst packed bed, and it thus achieves the independent control of pyrolysis and catalytic upgrading. On the other hand, in order to minimize coke formation and promote hydrocarbon Production in sequential two-step MACFP of water hyacinth, Ce-doped γ-Al2O3/ZrO2 composite mesoporous catalyst (CAZ) is synthesized and used in this study. The effects of catalyst type, pyrolysis temperature, catalytic upgrading temperature and catalyst reusability on product distribution and chemical compositions in Bio-Oil are investigated. The results demonstrate that water hyacinth is a good biomass candidate for fuel demand, and CAZ can facilitate the hydrocarbon fuel Production in Bio-Oil and exhibits an excellent catalyst reusability. Meanwhile, it is found that the optimal temperatures for water hyacinth pyrolysis and pyrolytic vapor upgrading are 650 °C and 450 °C, respectively.
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upgraded bio oil Production via catalytic fast co pyrolysis of waste cooking oil and tea residual
Waste Management, 2017Co-Authors: Jia Wang, Zhaoping Zhong, Bo Zhang, Kuan Ding, Aidong Deng, Roger RuanAbstract:Abstract Catalytic fast co-pyrolysis (co-CFP) offers a concise and effective process to achieve an upgraded Bio-Oil Production. In this paper, co-CFP experiments of waste cooking oil (WCO) and tea residual (TR) with HZSM-5 zeolites were carried out. The influences of pyrolysis reaction temperature and H/C ratio on pyrolytic products distribution and selectivities of aromatics were performed. Furthermore, the prevailing synergetic effect of target products during co-CFP process was investigated. Experimental results indicated that H/C ratio played a pivotal role in carbon yields of aromatics and olefins, and with H/C ratio increasing, the synergetic coefficient tended to increase, thus led to a dramatic growth of aromatics and olefins yields. Besides, the pyrolysis temperature made a significant contribution to carbon yields, and the yields of aromatics and olefins increased at first and then decreased at the researched temperature region. Note that 600 °C was an optimum temperature as the maximum yields of aromatics and olefins could be achieved. Concerning the transportation fuel dependence and security on fossil fuels, co-CFP of WCO and TR provides a novel way to improve the quality and quantity of pyrolysis Bio-Oil, and thus contributes bioenergy accepted as a cost-competitive and promising alternative energy.
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microwave assisted catalytic fast co pyrolysis of bamboo sawdust and waste tire for bio oil Production
Journal of Analytical and Applied Pyrolysis, 2017Co-Authors: Yunpu Wang, Roger Ruan, Leilei Dai, Yuhuan Liu, Liangliang Fan, Dengle Duan, Yuezhen Liu, Lin JiangAbstract:Abstract This study investigated microwave-assisted catalytic fast co-pyrolysis of waste tires and bamboo sawdusts for Bio-Oil Production with HZSM-5 as the catalyst. Effects of pyrolysis temperature, catalyst to feed ratio, bamboo sawdust to watse tire ratio on Bio-Oil Production was investigated. Results showed that the optimal co-pyrolysis temperature was 550 °C, which provides the maximum Bio-Oil yield and lowest proportion of polycyclic aromatic hydrocarbons. Watse tires as the hydrogen donor had a significant promotion on the Production of Bio-Oil and aromatic hydrocarbons. The maximum yield of aromatic hydrocarbons were obtained when the optimal bamboo sawdust to waste tire ratio was 1:1.
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Two-step fast microwave-assisted pyrolysis of biomass for Bio-Oil Production using microwave absorbent and HZSM-5 catalyst
Journal of environmental sciences (China), 2016Co-Authors: Bo Zhang, Zhaoping Zhong, Qinglong Xie, Shiyu Liu, Roger RuanAbstract:A novel technology of two-step fast microwave-assisted pyrolysis (fMAP) of corn stover for Bio-Oil Production was investigated in the presence of microwave absorbent (SiC) and HZSM-5 catalyst. Effects of fMAP temperature and catalyst-to-biomass ratio on Bio-Oil yield and chemical components were examined. The results showed that this technology, employing microwave, microwave absorbent and HZSM-5 catalyst, was effective and promising for biomass fast pyrolysis. The fMAP temperature of 500°C was considered the optimum condition for maximum yield and best quality of Bio-Oil. Besides, the Bio-Oil yield decreased linearly and the chemical components in Bio-Oil were improved sequentially with the increase of catalyst-to-biomass ratio from 1:100 to 1:20. The elemental compositions of bio-char were also determined. Additionally, compared to one-step fMAP process, two-step fMAP could promote the Bio-Oil quality with a smaller catalyst-to-biomass ratio.