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Hydrothermal liquefaction of biomass produced from domestic sewage treatment in...
De Aguiar Do Couto, Eduardo; Pinto, Filomena; Varela, Francisco; Reis, Alberto; Costa, Paula; Calijuri, Maria LuciaABSTRACT: This study evaluates the application of biomass produced from the treatment of domestic sewage in high-rate ponds (HRPs) as feedstock for the production of bio-oil via hydrothermal liquefaction (HTL). The effects of reaction time, temperature, and biomass/water ratio on the yield of bio-oil were assessed. In addition, a balance of carbon and nitrogen among the products (bio-oil, aqueous phase, solid r...
Hydrothermal liquefaction of biomass produced from domestic sewage treatment in...
Couto, Eduardo Aguiar; Pinto, Filomena; Varela, Francisco; Reis, Alberto; Costa, Paula; Calijuri, Maria LúciaThis study evaluates the application of biomass produced from the treatment of domestic sewage in high-rate ponds (HRPs) as feedstock for the production of bio-oil via hydrothermal liquefaction (HTL). The effects of reaction time, temperature, and biomass/water ratio on the yield of bio-oil were assessed. In addition, a balance of carbon and nitrogen among the products (bio-oil, aqueous phase, solid residue, an...
Hydrothermal liquefaction of biomass produced from domestic sewage treatment in...
De Aguiar Do Couto, Eduardo; Pinto, Filomena; Varela, Francisco; Reis, Alberto; Costa, Paula; Calijuri, Maria LuciaABSTRACT: This study evaluates the application of biomass produced from the treatment of domestic sewage in high-rate ponds (HRPs) as feedstock for the production of bio-oil via hydrothermal liquefaction (HTL). The effects of reaction time, temperature, and biomass/water ratio on the yield of bio-oil were assessed. In addition, a balance of carbon and nitrogen among the products (bio-oil, aqueous phase, solid r...
Comparison of co-gasification of wastes mixtures obtained from rice production ...
Pinto, Filomena; Andre, Rui N.; Lopes, Helena; Neves, Diogo; Varela, Francisco; Santos, João Navalho; Miranda, MiguelThe world annual production of rice is higher than 700.7 million tons, which generates rice husk and straw wastes. Rice culture also produces big amounts of polyethylene (PE) bags used in rice packs and for seeds and fertilizer storage that usually end up in landfills, due to their degree of contamination. The energetic valorisation of these wastes may be accomplished by different processes, co-gasification is ...
Benefits and drawbacks of energetic valorisation of Eucalyptus Globulus stumps ...
Pinto, Filomena; Andre, Rui N.; Lopes, Helena; Neves, Diogo; Varela, Francisco; Miranda, Miguel; Santos, João Navalhon the pulp and paper industry in Iberian Peninsula there is an intensive use of eucalyptus globulus that has a fast growth and a high productivity. There are large areas of forest dedicated to its growth. After 9 to 12 year rotation cycles trees are cut and the stumps are left in the fields. After 2 or 3 harvesting cycles these tree stumps are removed from the fields and considered low value biomass wastes. Thi...
Production of bio-hydrocarbons by hydrotreating of pomace oil
Pinto, Filomena; Varela, Francisco; Gonçalves, Maria Margarida; Andre, Rui N.; Costa, Paula; Mendes, BenildeOlive pomace oil is a by-product from the olive oil industry that is still being used in the food industry as a low value vegetable oil. Crude olive pomace oil needs to be refined and is blended with virgin olive oils before being used as edible oil. The detection of toxic compounds led to more restricted legislation and to the search of alternative valorisation processes, such as hydrotreating to obtain bio-hy...
Production of bio-hydrocarbons by hydrotreating of pomace oil
Pinto, Filomena; Varela, Francisco; Gonçalves, Maria Margarida; Andre, Rui N.; Costa, Paula; Mendes, BenildeOlive pomace oil is a by-product from the olive oil industry that is still being used in the food industry as a low value vegetable oil. Crude olive pomace oil needs to be refined and is blended with virgin olive oils before being used as edible oil. The detection of toxic compounds led to more restricted legislation and to the search of alternative valorisation processes, such as hydrotreating to obtain bio-hy...