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PUBLICATIONS
2008
García-Bacaicoa, Pedro; Mastral, José Francisco; Ceamanos, Jesús; Berrueco, César; Serrano, S
Gasification of biomass/high density polyethylene mixtures in a downdraft gasifier Journal Article
In: Bioresource Technology, vol. 99, no. 13, pp. 5485–5491, 2008, ISSN: 09608524.
@article{Garcia-Bacaicoa2008,
title = {Gasification of biomass/high density polyethylene mixtures in a downdraft gasifier},
author = {Pedro García-Bacaicoa and José Francisco Mastral and Jesús Ceamanos and César Berrueco and S Serrano},
doi = {10.1016/j.biortech.2007.11.003},
issn = {09608524},
year = {2008},
date = {2008-09-01},
journal = {Bioresource Technology},
volume = {99},
number = {13},
pages = {5485--5491},
publisher = {Elsevier},
abstract = {In this work, an experimental study of the thermal decomposition of mixtures of wood particles and high density polyethylene in different atmospheres has been carried out in a downdraft gasifier with a nominal processing capacity of 50 kg/h. The main objective was to study the feasibility of the operation of the gasification plant using mixtures and to investigate the characteristics of the gas obtained. In order to do so, experiments with biomass only and with mixtures with up to 15% HDPE have been carried out. The main components of the gas generated are N2 (50%), H2 (14%), CO (9-22%) and CO2 (7-17%) and its relatively high calorific value was adequate for using it in an internal combustion engine generator consisting of a modified diesel engine coupled with a 25 kV A alternator. textcopyright 2007 Elsevier Ltd. All rights reserved.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In this work, an experimental study of the thermal decomposition of mixtures of wood particles and high density polyethylene in different atmospheres has been carried out in a downdraft gasifier with a nominal processing capacity of 50 kg/h. The main objective was to study the feasibility of the operation of the gasification plant using mixtures and to investigate the characteristics of the gas obtained. In order to do so, experiments with biomass only and with mixtures with up to 15% HDPE have been carried out. The main components of the gas generated are N2 (50%), H2 (14%), CO (9-22%) and CO2 (7-17%) and its relatively high calorific value was adequate for using it in an internal combustion engine generator consisting of a modified diesel engine coupled with a 25 kV A alternator. textcopyright 2007 Elsevier Ltd. All rights reserved.
2005
Berrueco, César; Esperanza, Ernesto; Mastral, José Francisco; Ceamanos, Jesús; García-Bacaicoa, Pedro
Pyrolysis of waste tyres in an atmospheric static-bed batch reactor: Analysis of the gases obtained Proceedings Article
In: Journal of Analytical and Applied Pyrolysis, pp. 245–253, Elsevier, 2005, ISSN: 01652370.
@inproceedings{Berrueco2005,
title = {Pyrolysis of waste tyres in an atmospheric static-bed batch reactor: Analysis of the gases obtained},
author = {César Berrueco and Ernesto Esperanza and José Francisco Mastral and Jesús Ceamanos and Pedro García-Bacaicoa},
doi = {10.1016/j.jaap.2004.10.007},
issn = {01652370},
year = {2005},
date = {2005-08-01},
booktitle = {Journal of Analytical and Applied Pyrolysis},
volume = {74},
number = {1-2},
pages = {245--253},
publisher = {Elsevier},
abstract = {Scrap tyre pyrolysis was studied under nitrogen atmospheric pressure in order to analyse temperature influence on the global yields and the gas composition. A static-bed batch reactor was used to pyrolyse 300 g of shredded scrap tyres at temperatures from 400 to 700 °C. The reactor was externally heated by means of electrical resistances, the heating rate being approximately 12 K min-1. Once the required system temperature was reached and stabilised, it was maintained for 4 h. The residence time of the gas in the reactor was calculated, with values falling between 1 and 1.5 min. Three phases were obtained after pyrolysis: solid (char), liquid (water and oils) and gas (light hydrocarbons, H2, CO and CO2). The product distribution and composition were studied as a function of the thermal treatment. Global yields were determined as follows: char, 47-63 wt.%, oils, 30-43 wt.%, and gas, 2.4-4.4 wt.%. It was observed that the liquid yield increases with temperature from 400 to 500 °C. However, from 500 °C on, this parameter remained almost constant. The solid yield followed an inverse trend to that observed for the liquid yield. On the other hand, the gas yield showed a slight continuous growth with temperatures ranging from 400 °C (2.4 wt.%) to 700 °C (4.4 wt.%). The gas phase was analysed off-line by gas chromatography. The main gases produced from the pyrolysis process were H 2, CO, CO2 and hydrocarbons: CH4, C 2H4, C3H6 and C4H 8. It was observed that the fraction of light gases (H2, CO, CO2 and CH4) was greater at higher temperatures. textcopyright 2004 Elsevier B.V. All rights reserved.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Scrap tyre pyrolysis was studied under nitrogen atmospheric pressure in order to analyse temperature influence on the global yields and the gas composition. A static-bed batch reactor was used to pyrolyse 300 g of shredded scrap tyres at temperatures from 400 to 700 °C. The reactor was externally heated by means of electrical resistances, the heating rate being approximately 12 K min-1. Once the required system temperature was reached and stabilised, it was maintained for 4 h. The residence time of the gas in the reactor was calculated, with values falling between 1 and 1.5 min. Three phases were obtained after pyrolysis: solid (char), liquid (water and oils) and gas (light hydrocarbons, H2, CO and CO2). The product distribution and composition were studied as a function of the thermal treatment. Global yields were determined as follows: char, 47-63 wt.%, oils, 30-43 wt.%, and gas, 2.4-4.4 wt.%. It was observed that the liquid yield increases with temperature from 400 to 500 °C. However, from 500 °C on, this parameter remained almost constant. The solid yield followed an inverse trend to that observed for the liquid yield. On the other hand, the gas yield showed a slight continuous growth with temperatures ranging from 400 °C (2.4 wt.%) to 700 °C (4.4 wt.%). The gas phase was analysed off-line by gas chromatography. The main gases produced from the pyrolysis process were H 2, CO, CO2 and hydrocarbons: CH4, C 2H4, C3H6 and C4H 8. It was observed that the fraction of light gases (H2, CO, CO2 and CH4) was greater at higher temperatures. textcopyright 2004 Elsevier B.V. All rights reserved.
1994
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
In: Bioresource Technology, vol. 48, no. 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
Bilbao, Rafael; Salvador, María L; García-Bacaicoa, Pedro; Arauzo, Jesús
Solid weight loss in the thermal decomposition of cellulose and pine sawdust Journal Article
In: Journal of Analytical and Applied Pyrolysis, vol. 24, no. 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.