Analysis and Control of Light Hydrocarbon Gases in the Pyrolysis/Combustion Process of Several Solid Wastes

Alves, Joner Oliveira; Zhuo, Chuanwei; Levendis, Yiannis A.; Tenório, Jorge Alberto Soares

doi:10.1002/9781118495285.ch111

Cited by 6 publications

(12 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…(4,14) Estes gases constituíram a fonte de carbono para a formação dos nanomateriais apresentados neste trabalho. (9,15) …”

Section: Resultados E Discussõesunclassified

Síntese De Nanomateriais Utilizando Garrafas Pet Pós-Consumo Como Matéria-Prima

Alves¹,

Zhuo²,

Levendis³

et al. 2012

TMM

Self Cite

View full text Add to dashboard Cite

ResumoAtualmente, são produzidas no Brasil mais de 12 milhões de unidades de garrafas PET por dia. As garrafas PET pós-consumo correspondem a cerca de 1,0% da produção dos resíduos sólidos urbanos. Neste trabalho, estuda-se o reaproveitamento de garrafas PET como matéria-prima para produção de nanomateriais. Amostras de garrafas PET pós-consumo foram inseridas em um forno elétrico com temperaturas de 600°C e 1.000°C, sob uma atmosfera de 15% O 2 e 85% N 2 . O efluente da queima foi submetido a um filtro de SiC e repassado a um segundo forno mantido a 1.000°C. Telas de aço inoxidável foram dispostas no forno secundário para atuarem como catalisador. A técnica de microscopia eletrônica de varredura (MEV) foi empregada para a verificação da formação dos nanomateriais. Os resultados apontam a formação de nanomateriais com diâmetros de 90 nm a 140 nm e comprimentos na ordem de 40 µm. Os nanomateriais produzidos apresentam a forma tubular característica dos nanotubos de carbono. Palavras-chave: PET; Nanomateriais; Combustão; Catálise. SYNTHESIS OF NANOMATERIALS USING POST-CONSUMER PET BOTTLES AS RAW MATERIAL AbstractCurrently, more than 12 million units of PET bottles are produced in Brazil per day. The post-consumer PET bottles correspond to about 1.0% of the production of urban solid wastes. In this work, the recovery of PET bottles as raw material to produce nanomaterials is studied. Samples of post-consumer PET bottles were inserted in an electric furnace with temperatures of 600 and 1000°C under an atmosphere of 15% O 2 and 85% N 2 . The burned effluent was subjected to a SiC filter and channeled into the second furnace at 1000°C. Stainless steel meshes were placed in the second furnace in order to work as catalyst. Scanner electron microscopy (SEM) technique was used to verify the formation of nanomaterials. Results show the formation of nanomaterials with diameters of 90-140 nm and lengths of about 40 µm. Produced nanomaterials present the tubular form typical of carbon nanotubes.

show abstract

“…(4,14) Estes gases constituíram a fonte de carbono para a formação dos nanomateriais apresentados neste trabalho. (9,15) …”

Section: Resultados E Discussõesunclassified

Síntese De Nanomateriais Utilizando Garrafas Pet Pós-Consumo Como Matéria-Prima

Alves¹,

Zhuo²,

Levendis³

et al. 2012

TMM

Self Cite

View full text Add to dashboard Cite

show abstract

“…The most prominent light hydrocarbon species detected in this work were: methane (CH 4 ), acetylene (C 2 H 2 ), benzene (C 6 H 6 ), ethylene (C 2 H 4 ) and toluene (C 7 H 8 ). Traces of other compounds were also detected, including 1,3-butadiene, propylene, propyne, ethylacetylene and ethylbenzene 17 . Mole fractions of the most prominent LHCs detected in the experiments are shown in Figure 2; data was collected with…”

Section: Effluents Of the Pyrolysis/combustion Of The Sbr Feedstockmentioning

confidence: 99%

Microstructural analysis of carbon nanomaterials produced from pyrolysis/combustion of Styrene-Butadiene-Rubber (SBR)

et al. 2011

Self Cite

View full text Add to dashboard Cite

Styrene-Butadiene-Rubber (SBR) is a synthetic rubber copolymer used to fabricate several products. This study aims to demonstrate the use of SBR as feedstock for carbon nanomaterials (nanofibers and nanotubes) growth, and therefore to establish a novel process for destination of waste products containing SBR. A three stage electrically heated flow reactor was used. Small pellets of rubber were pyrolyzed at a temperature of 1000 °C. The pyrolyzates were mixed with oxygen-containing gases and were burned. The products of combustion were used to synthesize the carbon nanomaterials (CNMs) at the presence of a catalyst. CNMs have a wide range of potential applications due to their extraordinary mechanical, thermal and electrical properties. Produced materials were characterized by SEM and TEM, whereas combustion products were assessed using GC. Results showed that CNMs with outer diameters of 30-100 nm and lengths of about 30 µm were formed. Therefore, it was demonstrated that waste products containing SBR can be used to generate CNMs which are value-added products of intense technological interest.

show abstract

“…One of the viable alternatives for obtaining this extract is from sugarcane bagasse (Saccharum officinarum L., Poaceae); this residue has been routinely burned as an energy source (Zandersons et al, 1999), and hence, by a simple condensation of the smoke released, the extract can be obtained, which can be processed and used as a bio-insecticide. This process could avoid the annual emission of millions of tons of gases into the atmosphere (Alves et al, 2010), and produce a product with low environmental impact. The aim of this study was to obtain and process sugarcane pyroligneous acid and evaluate it against S. frugiperda larvae.…”

Section: Introductionmentioning

confidence: 99%

Biological activity of sugarcane pyroligneous acid against Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) larvae

Douglas¹,

Marcos²,

Favero³

et al. 2013

Afr. J. Biotechnol.

View full text Add to dashboard Cite

Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) annually cause enormous loss to the producers and their combat has become a worldwide challenge mainly due to several reports of pesticides resistance. Today, one of the best alternatives used in this combat is the application of natural insecticides such as neem oil and pyroligneous acid. This study demonstrates a method to obtain a hexane fraction from sugarcane pyroligneous acid, which can be easily applied, as well as its effectiveness against S. frugiperda. The hexane fraction exhibited LC 50 of 2206,41 ppm after 24 h of exposure with a linear dose-response, indicating that the fraction can be used as a bio-insecticide against S. frugiperda.

show abstract

Analysis and Control of Light Hydrocarbon Gases in the Pyrolysis/Combustion Process of Several Solid Wastes

Cited by 6 publications

References 16 publications

Síntese De Nanomateriais Utilizando Garrafas Pet Pós-Consumo Como Matéria-Prima

Síntese De Nanomateriais Utilizando Garrafas Pet Pós-Consumo Como Matéria-Prima

Microstructural analysis of carbon nanomaterials produced from pyrolysis/combustion of Styrene-Butadiene-Rubber (SBR)

Biological activity of sugarcane pyroligneous acid against Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) larvae

Contact Info

Product

Resources

About