About
27
Publications
8,536
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
434
Citations
Current institution
Publications
Publications (27)
The aim of this research was to characterise the bio-oil produced by pyrolysis of Acacia mangium wood through gas chromatography–mass spectrometry (GC–MS). Experimental study was employed using two experiment models: two-level factorial design (TLFD) and response surface methodology–Box–Behnken (RSM–BB). TLFD was used to analyse the final temperatu...
In this chapter there is described a tentative of obtain and characterize pyrolysis liquids from cashew nut shell, using a suggested classification of tars. The large amount of tar definitions and measurement methods, as well as the wide spectrum of organic compounds, makes it almost impossible to capture “tars” with a clear definition. And so, in...
Thermogravimetric analysis was used to study the thermal behavior of Acacia mangium
wood under inert atmosphere at heating rates ranging from 5 to 15�C min
�1, from room temperature to
800�C. Weight losses of A. mangium wood in inert atmosphere were found to occur in three stages. These
three states are generally associated with the decomposition o...
Pyrolytic degradation of Acacia mangium wood was studied. The chemical composition of biomass, immediate and elemental analyses and calorific value for biomass and char, were determined. The standard and the derivative curve thermogravimetric analysis (TGA and DTG) were obtained. Devolatilization maximum of values between 250±20 °C and 380±20 °C we...
The objective of this paper is to report our results on the behavior of an Otto engine working with gasoline blended with a fraction rich in esters of carboxylic acids derived from biomass pyrolysis bio-oil, hereby called as “Bioflex”. Sugarcane trash undergoes a fast pyrolysis process at the PPR-200 pilot plant to produce the bio-oil at Unicamp (B...
The aim of this work is to evaluate the influence of the sugar cane bagasse NaOH treatment in the mechanical and dynamic-mechanical properties, in the thermal stability, density and water absorption, when used in unsaturated polyester resin/sugar cane bagasse composite. The sugar cane bagasse was submitted to the chemical treatment with alkaline so...
The main purpose of this work is to present the manufacturing, calibration and validation of a system for wet and dry bulb temperature measurements obtained on a new psychrometer. The calibration has lead to the adjustment of the appropriate psychrometer coefficient for the developed psychrometer, as a function of the wet bulb temperature, which fi...
The main purpose of this work is to present the manufacturing, calibration and validation of a syst em for wet and dry bulb temperature measurements obtained on a new psychrometer. The calibration has lead to the adjustment of the a ppropriate psychrometer coefficient for the developed psychrometer, as a function of the wet bulb temperature, which...
This work approaches both the theoretical and practical aspects of the gasification technologies for the energetic conversion of residual biomasses from industrial, agricultural and urban activities into alternative energetic resources. Examples of technologies presented on the international literature regarded to this subject show that gasificatio...
O crescimento das grandes cidades, da industrialização e do consumo, tem orçado a civilização a conviver com um processo mais intenso de degradação do meio ambiente, ameaçando os recursos naturais e energéticos, além da maior produção de resíduos sólidos, líquidos e gasosos. Isto tem trazido preocupação com relação à sustentabilidade do processo de...
This paper discusses the performance characteristics of a 280 kWth fluidized bed gasifier fueled with bagasse pellets. The gasifier was designed by the State University of Campinas (UNICAMP) and built by TERMOQUIP Energia Alternativa Ltda, based in Campinas, Brazil. Preliminary tests were performed in 1996 to determine the reactor performance as pa...
Optimization of screw feeder for sugarcane bagasse feeding into the biomass gasifier for energy production.
The objective of this paper is to discuss the use of coffee grounds in the Brazilian soluble coffee industry. This residue is used as a fuel in the boilers of the same industry; so, data about their utilization are presented and analysed, discussing the actual technology and the advantages of improving the drying of the biomass with the exhaust com...
Brazil is a great world producer of biomass. Combustion and gasification are alternative processes for biomass energy recovery. Depending on biomass type and burn process, liquid (tar), char or gases, can be obtained in different proportions. In the gasification process, it is mainly obtained the gas combustible whose composition and calorific valu...
The contamination of the environment with effluents generated in the process of pyrolysis of biomass has aroused the interest of the scientific community and concerned an increasing number of countries which started adopting measures to quantify and reduce the generated effluents. The pyrolysis is a process that can serve as alternative to the use...
Composites of unsaturated polyester resin with miriti fibers: flexural properties Natural fiber reinforced composites has been an important area in polymer science, mainly because they are biodegradable, renewable, and environmentally friendly. In this work, unsaturated polyester resin, which is commoly used as the matrix in synthetic glass fiber c...
