Articles Published in International Peer-Reviewed Journals (dec. 2020)
316
1994 |
Journal Articles |
Bilbao, Rafael; Millera, Ángela; Alzueta, María U Influence of the Temperature and Oxygen Concentration on NOx Reduction in the Natural Gas Reburning Process Journal Article Industrial and Engineering Chemistry Research, 33 (11), pp. 2846–2852, 1994, ISSN: 15205045. @article{Bilbao1994a, title = {Influence of the Temperature and Oxygen Concentration on NOx Reduction in the Natural Gas Reburning Process}, author = {Rafael Bilbao and Ángela Millera and María U Alzueta}, url = {https://pubs.acs.org/sharingguidelines}, doi = {10.1021/ie00035a039}, issn = {15205045}, year = {1994}, date = {1994-11-01}, journal = {Industrial and Engineering Chemistry Research}, volume = {33}, number = {11}, pages = {2846--2852}, publisher = {American Chemical Society}, abstract = {The reburning process with natural gas is an effective technique which can be applied in existing coal combustors in order to reduce the NOx emissions. The influence of the reburning temperature (1200–1500 °C) and the oxygen concentration coming from the primary combustion zone (0–5%) have been studied. Experimental results of NO, HCN, NH3, CO, CO2, and CH4 concentrations in the exit gas have been determined. The influence of the natural gas decomposition on these results has been analyzed. The experimental trends obtained have been compared with those calculated with the model of Kilpinen et al. (1992). textcopyright 1994, American Chemical Society. All rights reserved.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The reburning process with natural gas is an effective technique which can be applied in existing coal combustors in order to reduce the NOx emissions. The influence of the reburning temperature (1200–1500 °C) and the oxygen concentration coming from the primary combustion zone (0–5%) have been studied. Experimental results of NO, HCN, NH3, CO, CO2, and CH4 concentrations in the exit gas have been determined. The influence of the natural gas decomposition on these results has been analyzed. The experimental trends obtained have been compared with those calculated with the model of Kilpinen et al. (1992). textcopyright 1994, American Chemical Society. All rights reserved. |
Arauzo, Jesús; Radlein, D; Piskorz, J; Scott, D S A New Catalyst for the Catalytic Gasification of Biomass Journal Article Energy and Fuels, 8 (6), pp. 1192–1196, 1994, ISSN: 15205029. @article{Arauzo1994, title = {A New Catalyst for the Catalytic Gasification of Biomass}, author = {Jesús Arauzo and D Radlein and J Piskorz and D S Scott}, url = {https://pubs.acs.org/sharingguidelines}, doi = {10.1021/ef00048a005}, issn = {15205029}, year = {1994}, date = {1994-11-01}, journal = {Energy and Fuels}, volume = {8}, number = {6}, pages = {1192--1196}, publisher = {American Chemical Society}, abstract = {Various kinds of catalysts are being developed and tested for the pyrolytic gasification of biomass using the Waterloo Fast Pyrolysis Process (WFPP) technology. The present report describes gasification tests with wood in a continuous bench scale fluidized bed reactor but with no added air or oxygen in the region of 500–700 °C and at short gas contact times, using a crystalline nickel aluminate catalyst. The objective was to determine the most appropriate operating conditions for this catalyst and its performance for the production of a synthesis gas in high yields. Experiments were carried out with this catalyst in both inert and reactive gasification media, but without any oxygen or air addition. The results show the influence of the catalyst on the nature of the gasification products and the effect of operating variables. Gas compositions are given for typical WFPP operating conditions. Evidence is presented which indicates that the gasification mechanism is a fast thermal pyrolysis followed by catalytic reforming of the vapors with a high yield of synthesis gas. textcopyright 1994, American Chemical Society. All rights reserved.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Various kinds of catalysts are being developed and tested for the pyrolytic gasification of biomass using the Waterloo Fast Pyrolysis Process (WFPP) technology. The present report describes gasification tests with wood in a continuous bench scale fluidized bed reactor but with no added air or oxygen in the region of 500–700 °C and at short gas contact times, using a crystalline nickel aluminate catalyst. The objective was to determine the most appropriate operating conditions for this catalyst and its performance for the production of a synthesis gas in high yields. Experiments were carried out with this catalyst in both inert and reactive gasification media, but without any oxygen or air addition. The results show the influence of the catalyst on the nature of the gasification products and the effect of operating variables. Gas compositions are given for typical WFPP operating conditions. Evidence is presented which indicates that the gasification mechanism is a fast thermal pyrolysis followed by catalytic reforming of the vapors with a high yield of synthesis gas. textcopyright 1994, American Chemical Society. All rights reserved. |
García-Bacaicoa, Pedro; Bilbao, Rafael; Arauzo, Jesús; Salvador, María L Scale-up of downdraft moving bed gasifiers (25-300 kg/h) - Design, experimental aspects and results Journal Article Bioresource Technology, 48 (3), pp. 229–235, 1994, ISSN: 09608524. @article{Garcia-Bacaicoa1994, title = {Scale-up of downdraft moving bed gasifiers (25-300 kg/h) - Design, experimental aspects and results}, author = {Pedro García-Bacaicoa and Rafael Bilbao and Jesús Arauzo and María L Salvador}, doi = {10.1016/0960-8524(94)90151-1}, issn = {09608524}, year = {1994}, date = {1994-01-01}, journal = {Bioresource Technology}, volume = {48}, number = {3}, pages = {229--235}, publisher = {Elsevier}, abstract = {Two installations with different biomass processing capacities (25-50 and 200-300 kg/h) were designed and constructed for air gasification of lignocellulosic biomass. This paper describes both installations as well as the experimental procedure. The influence of operating conditions on the amount and quality of products was determined. The results obtained from processing forestry waste are analysed. Values above 90% for mass conversion efficiency and over 70% for cold gas efficiency were reached. textcopyright 1994.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Two installations with different biomass processing capacities (25-50 and 200-300 kg/h) were designed and constructed for air gasification of lignocellulosic biomass. This paper describes both installations as well as the experimental procedure. The influence of operating conditions on the amount and quality of products was determined. The results obtained from processing forestry waste are analysed. Values above 90% for mass conversion efficiency and over 70% for cold gas efficiency were reached. textcopyright 1994. |
1993 |
Journal Articles |
Bilbao, Rafael; Salvador, María L; García-Bacaicoa, Pedro; Arauzo, Jesús Solid weight loss in the thermal decomposition of cellulose and pine sawdust Journal Article Journal of Analytical and Applied Pyrolysis, 24 (3), pp. 257–271, 1993, ISSN: 01652370. @article{Bilbao1993a, title = {Solid weight loss in the thermal decomposition of cellulose and pine sawdust}, author = {Rafael Bilbao and María L Salvador and Pedro García-Bacaicoa and Jesús Arauzo}, doi = {10.1016/0165-2370(93)85005-J}, issn = {01652370}, year = {1993}, date = {1993-02-01}, journal = {Journal of Analytical and Applied Pyrolysis}, volume = {24}, number = {3}, pages = {257--271}, publisher = {Elsevier}, abstract = {An experimental study of the thermal decomposition of powdered lignocellulosic biomass was performed in a macrobalance system. Weight loss and temperature profiles in the bed for different heating rates were determined using mainly cellulose and pine sawdust. Some experiments with xylan and lignin were also carried out. A simple model was used to calculate weight loss and temperature at different points. An average temperature allows comparison of the results obtained. textcopyright 1993.}, keywords = {}, pubstate = {published}, tppubtype = {article} } An experimental study of the thermal decomposition of powdered lignocellulosic biomass was performed in a macrobalance system. Weight loss and temperature profiles in the bed for different heating rates were determined using mainly cellulose and pine sawdust. Some experiments with xylan and lignin were also carried out. A simple model was used to calculate weight loss and temperature at different points. An average temperature allows comparison of the results obtained. textcopyright 1993. |
Bilbao, Rafael; Millera, Ángela; Murillo, María Benita Temperature Profiles and Weight Loss in the Thermal Decomposition of Large Spherical Wood Particles Journal Article Industrial and Engineering Chemistry Research, 32 (9), pp. 1811–1817, 1993, ISSN: 15205045. @article{Bilbao1993, title = {Temperature Profiles and Weight Loss in the Thermal Decomposition of Large Spherical Wood Particles}, author = {Rafael Bilbao and Ángela Millera and María Benita Murillo}, url = {https://pubs.acs.org/sharingguidelines}, doi = {10.1021/ie00021a003}, issn = {15205045}, year = {1993}, date = {1993-01-01}, journal = {Industrial and Engineering Chemistry Research}, volume = {32}, number = {9}, pages = {1811--1817}, publisher = {American Chemical Society}, abstract = {The thermal decomposition of relatively large particles of pine wood has been studied. By use of spherical particles of different sizes (2–5.6 cm in diameter), the experimental solid conversion values and the temperature at different points of the solid are analyzed for different heating rates of the system. The experimental results have been compared with those calculated with a simple model, which involves the solution of the heat and mass balances and the kinetic equations, using experimental values as boundary conditions. A good agreement has been obtained for particles up to 4 cm in diameter. For larger particles the mass transfer resistance inside the solid and the existence of secondary reactions may acquire an appreciable importance. textcopyright 1993, American Chemical Society. All rights reserved.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The thermal decomposition of relatively large particles of pine wood has been studied. By use of spherical particles of different sizes (2–5.6 cm in diameter), the experimental solid conversion values and the temperature at different points of the solid are analyzed for different heating rates of the system. The experimental results have been compared with those calculated with a simple model, which involves the solution of the heat and mass balances and the kinetic equations, using experimental values as boundary conditions. A good agreement has been obtained for particles up to 4 cm in diameter. For larger particles the mass transfer resistance inside the solid and the existence of secondary reactions may acquire an appreciable importance. textcopyright 1993, American Chemical Society. All rights reserved. |
1992 |
Journal Articles |
Bilbao, Rafael; Murillo, María Benita; Millera, Ángela Angular and radial temperature profiles in the thermal decomposition of wood Journal Article Thermochimica Acta, 200 (C), pp. 401–411, 1992, ISSN: 00406031. @article{Bilbao1992a, title = {Angular and radial temperature profiles in the thermal decomposition of wood}, author = {Rafael Bilbao and María Benita Murillo and Ángela Millera}, doi = {10.1016/0040-6031(92)85133-G}, issn = {00406031}, year = {1992}, date = {1992-07-01}, journal = {Thermochimica Acta}, volume = {200}, number = {C}, pages = {401--411}, publisher = {Elsevier}, abstract = {During the thermal decomposition of wood, an increase in the particle size produces an important decrease in the weight loss of the solid caused by significant temperature profiles, both radial and angular, inside the solid. In order to determine these profiles, experiments with different particle sizes (2, 3, 4 and 5.6 cm in diameter) have been carried out. In these experiments, temperatures at different points corresponding to various values of radii and angles were measured. An analysis of the different values and trends obtained has been performed. textcopyright 1992.}, keywords = {}, pubstate = {published}, tppubtype = {article} } During the thermal decomposition of wood, an increase in the particle size produces an important decrease in the weight loss of the solid caused by significant temperature profiles, both radial and angular, inside the solid. In order to determine these profiles, experiments with different particle sizes (2, 3, 4 and 5.6 cm in diameter) have been carried out. In these experiments, temperatures at different points corresponding to various values of radii and angles were measured. An analysis of the different values and trends obtained has been performed. textcopyright 1992. |
Bilbao, Rafael; Murillo, María Benita; Millera, Ángela; Arauzo, Jesús; Caleya, José María Thermal decomposition of a wood particle. Temperature profiles on the solid surface Journal Article Thermochimica Acta, 197 (2), pp. 431–442, 1992, ISSN: 00406031. @article{Bilbao1992, title = {Thermal decomposition of a wood particle. Temperature profiles on the solid surface}, author = {Rafael Bilbao and María Benita Murillo and Ángela Millera and Jesús Arauzo and José María Caleya}, doi = {10.1016/0040-6031(92)85044-V}, issn = {00406031}, year = {1992}, date = {1992-03-01}, journal = {Thermochimica Acta}, volume = {197}, number = {2}, pages = {431--442}, publisher = {Elsevier}, abstract = {The calculation of the weight loss during the thermal decomposition of lignocellulosic materials involves the solution of the heat and mass balance equations. In order to solve these equations it is necessary to know the temperature on the solid surface, which can vary at different points and can also be very different from the gas temperature. In this work, an experimental study was carried out in a system which allows the use of large particle sizes and the simulation of different operating conditions. In this study, the temperatures on the solid surface were measured and compared with those corresponding to the empty reactor. textcopyright 1992.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The calculation of the weight loss during the thermal decomposition of lignocellulosic materials involves the solution of the heat and mass balance equations. In order to solve these equations it is necessary to know the temperature on the solid surface, which can vary at different points and can also be very different from the gas temperature. In this work, an experimental study was carried out in a system which allows the use of large particle sizes and the simulation of different operating conditions. In this study, the temperatures on the solid surface were measured and compared with those corresponding to the empty reactor. textcopyright 1992. |
1991 |
Journal Articles |
Bilbao, Rafael; Murillo, María Benita; Millera, Ángela; Mastral, José Francisco Thermal decomposition of lignocellulosic materials: comparison of the results obtained in different experimental systems Journal Article Thermochimica Acta, 190 (2), pp. 163–173, 1991, ISSN: 00406031. @article{Bilbao1991a, title = {Thermal decomposition of lignocellulosic materials: comparison of the results obtained in different experimental systems}, author = {Rafael Bilbao and María Benita Murillo and Ángela Millera and José Francisco Mastral}, doi = {10.1016/0040-6031(91)85242-A}, issn = {00406031}, year = {1991}, date = {1991-11-01}, journal = {Thermochimica Acta}, volume = {190}, number = {2}, pages = {163--173}, publisher = {Elsevier}, abstract = {An experimental system that allows the use of large particle sizes and the simulation of different operating conditions was built to study the thermal decomposition of lignocellulosic materials. The values of solid conversion and of temperature obtained at different points using spherical particles of pine wood 2 cm in diameter are shown. The conversion values are compared with those calculated from the equations obtained in a thermobalance for small particle sizes. textcopyright 1991.}, keywords = {}, pubstate = {published}, tppubtype = {article} } An experimental system that allows the use of large particle sizes and the simulation of different operating conditions was built to study the thermal decomposition of lignocellulosic materials. The values of solid conversion and of temperature obtained at different points using spherical particles of pine wood 2 cm in diameter are shown. The conversion values are compared with those calculated from the equations obtained in a thermobalance for small particle sizes. textcopyright 1991. |
Bilbao, Rafael; Lezaun, J; Menéndez, Miguel; Izquierdo, Marı́a Teresa Segregation of straw/sand mixtures in fluidized beds in non-steady state Journal Article Powder Technology, 68 (1), pp. 31–35, 1991, ISSN: 00325910. @article{Bilbao1991, title = {Segregation of straw/sand mixtures in fluidized beds in non-steady state}, author = {Rafael Bilbao and J Lezaun and Miguel Menéndez and Marı́a Teresa Izquierdo}, doi = {10.1016/0032-5910(91)80061-M}, issn = {00325910}, year = {1991}, date = {1991-10-01}, journal = {Powder Technology}, volume = {68}, number = {1}, pages = {31--35}, publisher = {Elsevier}, abstract = {A model predicting the concentration profiles of straw/sand mixtures in non-steady-state fluidized beds is presented. The model is based on the mechanisms of mixing-segregation developed for these mixtures in steady state. A method to solve the mass balances is shown. Satisfactory agreement is obtained between the experimental results and the predictions of the model. The variation of mixing index with the time is also shown. textcopyright 1991.}, keywords = {}, pubstate = {published}, tppubtype = {article} } A model predicting the concentration profiles of straw/sand mixtures in non-steady-state fluidized beds is presented. The model is based on the mechanisms of mixing-segregation developed for these mixtures in steady state. A method to solve the mass balances is shown. Satisfactory agreement is obtained between the experimental results and the predictions of the model. The variation of mixing index with the time is also shown. textcopyright 1991. |
1990 |
Journal Articles |
Bilbao, Rafael; Millera, Ángela; Arauzo, Jesús Thermochimica Acta, 165 (1), pp. 103–112, 1990, ISSN: 00406031. @article{Bilbao1990, title = {Kinetics of weight loss by thermal decomposition of different lignocellulosic materials. Relation between the results obtained from isothermal and dynamic experiments}, author = {Rafael Bilbao and Ángela Millera and Jesús Arauzo}, doi = {10.1016/0040-6031(90)80210-P}, issn = {00406031}, year = {1990}, date = {1990-07-01}, journal = {Thermochimica Acta}, volume = {165}, number = {1}, pages = {103--112}, publisher = {Elsevier}, abstract = {The kinetics of weight loss in the thermal decomposition of Pinaster pine and barley straw in a nitrogen environment have been studied. The results obtained under different experimental conditions are shown and compared. These results are related by using the results of dynamic experiments with low heating rates as a reference. textcopyright 1990.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The kinetics of weight loss in the thermal decomposition of Pinaster pine and barley straw in a nitrogen environment have been studied. The results obtained under different experimental conditions are shown and compared. These results are related by using the results of dynamic experiments with low heating rates as a reference. textcopyright 1990. |
1989 |
Journal Articles |
Bilbao, Rafael; Millera, Ángela; Arauzo, Jesús Kinetics of weight loss by thermal decomposition of xylan and lignin. Influence of experimental conditions Journal Article Thermochimica Acta, 143 (C), pp. 137–148, 1989, ISSN: 00406031. @article{Bilbao1989, title = {Kinetics of weight loss by thermal decomposition of xylan and lignin. Influence of experimental conditions}, author = {Rafael Bilbao and Ángela Millera and Jesús Arauzo}, doi = {10.1016/0040-6031(89)85051-8}, issn = {00406031}, year = {1989}, date = {1989-05-01}, journal = {Thermochimica Acta}, volume = {143}, number = {C}, pages = {137--148}, publisher = {Elsevier}, abstract = {The kinetics of weight loss in the thermal decomposition of xylan and lignin in a nitrogen environment have been studied thermogravimetrically. The data from this study are analysed in the light of previous conclusions obtained with cellulose. The results from isothermal and dynamic experiments at different heating rates are related by using the results of dynamic experiments with low heating rates (1.5 °C min-1) as a reference. textcopyright 1989.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The kinetics of weight loss in the thermal decomposition of xylan and lignin in a nitrogen environment have been studied thermogravimetrically. The data from this study are analysed in the light of previous conclusions obtained with cellulose. The results from isothermal and dynamic experiments at different heating rates are related by using the results of dynamic experiments with low heating rates (1.5 °C min-1) as a reference. textcopyright 1989. |
Bilbao, Rafael; Millera, Ángela; Arauzo, Jesús Thermal decomposition of lignocellulosic materials: influence of the chemical composition Journal Article Thermochimica Acta, 143 (C), pp. 149–159, 1989, ISSN: 00406031. @article{Bilbao1989a, title = {Thermal decomposition of lignocellulosic materials: influence of the chemical composition}, author = {Rafael Bilbao and Ángela Millera and Jesús Arauzo}, doi = {10.1016/0040-6031(89)85052-X}, issn = {00406031}, year = {1989}, date = {1989-05-01}, journal = {Thermochimica Acta}, volume = {143}, number = {C}, pages = {149--159}, publisher = {Elsevier}, abstract = {The results obtained with different lignocellulosic materials ("Pinaster" pine and barley straw) are compared with those calculated by considering the weighted contributions of the different constituents of the materials. The results obtained in isothermal and dynamic experiments with "Pinaster" pine showed a good agreement, whereas higher divergences were found for barley straw. A different method of data analysis is proposed for barley straw, which uses results directly obtained with this material. textcopyright 1989.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The results obtained with different lignocellulosic materials ("Pinaster" pine and barley straw) are compared with those calculated by considering the weighted contributions of the different constituents of the materials. The results obtained in isothermal and dynamic experiments with "Pinaster" pine showed a good agreement, whereas higher divergences were found for barley straw. A different method of data analysis is proposed for barley straw, which uses results directly obtained with this material. textcopyright 1989. |
1988 |
Journal Articles |
Bilbao, Rafael; Lezaun, J; Menéndez, Miguel; Abanades, J C Model of mixing-segregation for straw/sand mixtures in fluidized beds Journal Article Powder Technology, 56 (3), pp. 149–155, 1988, ISSN: 00325910. @article{Bilbao1988, title = {Model of mixing-segregation for straw/sand mixtures in fluidized beds}, author = {Rafael Bilbao and J Lezaun and Miguel Menéndez and J C Abanades}, doi = {10.1016/0032-5910(88)80026-3}, issn = {00325910}, year = {1988}, date = {1988-11-01}, journal = {Powder Technology}, volume = {56}, number = {3}, pages = {149--155}, publisher = {Elsevier}, abstract = {When a sand/straw mixture (HSF/LBP type) is fluidized with air, a high degree of segregation can appear, with the sand settling at the bottom of the bed (jetsam) and the straw rising to the top (flotsam). A new model, based on that of Gibilaro and Rowe but accounting for the particular characteristics of the solids used, has been developed. Reasonable agreement with experimental data has been obtained. The values of the parameters that fit the experimental results for a wide range of conditions are obtained. textcopyright 1988.}, keywords = {}, pubstate = {published}, tppubtype = {article} } When a sand/straw mixture (HSF/LBP type) is fluidized with air, a high degree of segregation can appear, with the sand settling at the bottom of the bed (jetsam) and the straw rising to the top (flotsam). A new model, based on that of Gibilaro and Rowe but accounting for the particular characteristics of the solids used, has been developed. Reasonable agreement with experimental data has been obtained. The values of the parameters that fit the experimental results for a wide range of conditions are obtained. textcopyright 1988. |
Bilbao, Rafael; Millera, Ángela; Arauzo, Jesús Product distribution in the flash pyrolysis of lignocellulosic materials in a fluidized bed Journal Article Fuel, 67 (11), pp. 1586–1588, 1988, ISSN: 00162361. @article{Bilbao1988a, title = {Product distribution in the flash pyrolysis of lignocellulosic materials in a fluidized bed}, author = {Rafael Bilbao and Ángela Millera and Jesús Arauzo}, doi = {10.1016/0016-2361(88)90082-8}, issn = {00162361}, year = {1988}, date = {1988-11-01}, journal = {Fuel}, volume = {67}, number = {11}, pages = {1586--1588}, publisher = {Elsevier}, abstract = {Knowledge of the flash pyrolysis of lignocellulosic materials is of great importance because it constitutes the first step of several thermochemical processes. This work is concerned with the study of the products obtained when the pyrolysis of lignocellulosic materials is carried out in a fluidized bed reactor. Two different feeds have been used, namely, wheat straw and pine sawdust. The proportions of gas, liquid and solids in the product as well as the composition of the exit gas have been obtained for different operating conditions. textcopyright 1988.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Knowledge of the flash pyrolysis of lignocellulosic materials is of great importance because it constitutes the first step of several thermochemical processes. This work is concerned with the study of the products obtained when the pyrolysis of lignocellulosic materials is carried out in a fluidized bed reactor. Two different feeds have been used, namely, wheat straw and pine sawdust. The proportions of gas, liquid and solids in the product as well as the composition of the exit gas have been obtained for different operating conditions. textcopyright 1988. |
1987 |
Journal Articles |
Bilbao, Rafael; Arauzo, Jesús; Millera, Ángela Kinetics of thermal decomposition of cellulose. Part I. Influence of experimental conditions Journal Article Thermochimica Acta, 120 (C), pp. 121–131, 1987, ISSN: 00406031. @article{Bilbao1987, title = {Kinetics of thermal decomposition of cellulose. Part I. Influence of experimental conditions}, author = {Rafael Bilbao and Jesús Arauzo and Ángela Millera}, doi = {10.1016/0040-6031(87)80211-3}, issn = {00406031}, year = {1987}, date = {1987-10-01}, journal = {Thermochimica Acta}, volume = {120}, number = {C}, pages = {121--131}, publisher = {Elsevier}, abstract = {The kinetics of weight loss in the thermal decomposition of cellulose have been determined by means of isothermal and dynamic experiments carried out under various conditions. Values for the pyrolyzable fraction, reaction order and kinetic constant have been obtained from isothermal experiments, while the important influence of the rate of heating of the system as well as the percentages of pyrolyzed solids at T ≤ 150°C have been observed from the dynamic experiments. textcopyright 1987.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The kinetics of weight loss in the thermal decomposition of cellulose have been determined by means of isothermal and dynamic experiments carried out under various conditions. Values for the pyrolyzable fraction, reaction order and kinetic constant have been obtained from isothermal experiments, while the important influence of the rate of heating of the system as well as the percentages of pyrolyzed solids at T ≤ 150°C have been observed from the dynamic experiments. textcopyright 1987. |
Bilbao, Rafael; Arauzo, Jesús; Millera, Ángela Kinetics of thermal decomposition of cellulose. Part II. Temperature differences between gas and solid at high heating rates Journal Article Thermochimica Acta, 120 (C), pp. 133–141, 1987, ISSN: 00406031. @article{Bilbao1987a, title = {Kinetics of thermal decomposition of cellulose. Part II. Temperature differences between gas and solid at high heating rates}, author = {Rafael Bilbao and Jesús Arauzo and Ángela Millera}, doi = {10.1016/0040-6031(87)80212-5}, issn = {00406031}, year = {1987}, date = {1987-10-01}, journal = {Thermochimica Acta}, volume = {120}, number = {C}, pages = {133--141}, publisher = {Elsevier}, abstract = {The use of high heating rates when studying the thermal decomposition kinetics of cellulose gives rise to a gap between the solid temperature and the thermogravimetric system temperature. A model is proposed which accounts for this temperature gap and permits the calculation of the actual solid temperature. The results for various heating rates are fitted using the same kinetic equation. textcopyright 1987.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The use of high heating rates when studying the thermal decomposition kinetics of cellulose gives rise to a gap between the solid temperature and the thermogravimetric system temperature. A model is proposed which accounts for this temperature gap and permits the calculation of the actual solid temperature. The results for various heating rates are fitted using the same kinetic equation. textcopyright 1987. |
