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Email: jlsance@unizar.es
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SOBRE MÍ
Research Interests
Biomass gasification & pyrolysis, biodiesel production, biodiesel oxidation stability, lignin valorization
PUBLICATIONS
2003
Gea, Gloria; Murillo, María Benita; Sánchez, José Luis; Bilbao, Rafael; Arauzo, Jesús
Straw black liquor gasification studies at the University of Zaragoza Artículo de revista
En: Pulp and Paper Canada, vol. 104, no 3, pp. 44–48, 2003.
@article{Gea2003a,
title = {Straw black liquor gasification studies at the University of Zaragoza},
author = {Gloria Gea and María Benita Murillo and José Luis Sánchez and Rafael Bilbao and Jesús Arauzo},
url = {https://www.osti.gov/etdeweb/biblio/20341706},
year = {2003},
date = {2003-01-01},
journal = {Pulp and Paper Canada},
volume = {104},
number = {3},
pages = {44--48},
abstract = {Results of studies on the thermal behaviour of straw black liquor and fluidized bed gasification are discussed. Agglomeration of the bed and low gas yield, coupled with high tar formation, was observed during fluidized bed gasification. To avoid agglomeration a spouted bed reactor was used and the black liquor was pretreated to reduce its swelling. Attempt were made to reduce tar formation by adding a secondary catalyst (NiAlsub 2Osub 4) to the fluidized bed which is known to be useful in cracking tars formed during the pyrolysis stage. Results of selected additional studies on several variables such as the furnace temperature and gas composition on the swelling of a soda straw black liquor are also included},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Results of studies on the thermal behaviour of straw black liquor and fluidized bed gasification are discussed. Agglomeration of the bed and low gas yield, coupled with high tar formation, was observed during fluidized bed gasification. To avoid agglomeration a spouted bed reactor was used and the black liquor was pretreated to reduce its swelling. Attempt were made to reduce tar formation by adding a secondary catalyst (NiAlsub 2Osub 4) to the fluidized bed which is known to be useful in cracking tars formed during the pyrolysis stage. Results of selected additional studies on several variables such as the furnace temperature and gas composition on the swelling of a soda straw black liquor are also included
2002
Olazar, Martín; Aguado, Roberto; Sánchez, José Luis; Bilbao, Rafael; Arauzo, Jesús
Thermal processing of straw black liquor in fluidized and spouted bed Artículo de revista
En: Energy and Fuels, vol. 16, no 6, pp. 1417–1424, 2002, ISSN: 08870624.
@article{Olazar2002,
title = {Thermal processing of straw black liquor in fluidized and spouted bed},
author = {Martín Olazar and Roberto Aguado and José Luis Sánchez and Rafael Bilbao and Jesús Arauzo},
doi = {10.1021/ef020034n},
issn = {08870624},
year = {2002},
date = {2002-11-01},
journal = {Energy and Fuels},
volume = {16},
number = {6},
pages = {1417--1424},
abstract = {Nowadays, black liquor recovery is important for the economics of the pulp and paper production industry. As a result of the high capital cost of the recovery unit, the corrosive nature of the smelt, and the risk of smeltwater explosions, alternatives to the conventional recovery cycle are under research in order to achieve more efficient and environmentally cleaner processes. These alternatives fall into two categories: high-temperature and low-temperature, according to whether or not the melting point of the black liquor inorganics is reached. The advantage of low-temperature processes is to avoid the formation of smelt. In this work, the feasibility of the thermal processing at low temperature of straw black liquor in two different bench scale reactors has been tested. In the fluidized bed, the loss of fluidization due to bed agglomeration was found to be the main problem in the reactor used. The second reactor used, a spouted bed, presents different characteristics from the fluidized bed, and has been tested in order to overcome the agglomeration observed. Experiments in different operating conditions were carried out in order to get a basic knowledge about the behavior of this residue during pyrolysis, gasification, and combustion processes. To work below the melting point of the black liquor inorganics, reaction temperature was kept under 600°C. Liquid black liquor and dry black liquor were used as feedstocks. Nitrogen, air, and nitrogen-oxygen mixtures were considered as reaction atmospheres.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Nowadays, black liquor recovery is important for the economics of the pulp and paper production industry. As a result of the high capital cost of the recovery unit, the corrosive nature of the smelt, and the risk of smeltwater explosions, alternatives to the conventional recovery cycle are under research in order to achieve more efficient and environmentally cleaner processes. These alternatives fall into two categories: high-temperature and low-temperature, according to whether or not the melting point of the black liquor inorganics is reached. The advantage of low-temperature processes is to avoid the formation of smelt. In this work, the feasibility of the thermal processing at low temperature of straw black liquor in two different bench scale reactors has been tested. In the fluidized bed, the loss of fluidization due to bed agglomeration was found to be the main problem in the reactor used. The second reactor used, a spouted bed, presents different characteristics from the fluidized bed, and has been tested in order to overcome the agglomeration observed. Experiments in different operating conditions were carried out in order to get a basic knowledge about the behavior of this residue during pyrolysis, gasification, and combustion processes. To work below the melting point of the black liquor inorganics, reaction temperature was kept under 600°C. Liquid black liquor and dry black liquor were used as feedstocks. Nitrogen, air, and nitrogen-oxygen mixtures were considered as reaction atmospheres.