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Registro Completo |
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
09/12/2021 |
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Data da última atualização: |
09/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MAYER, F. M.; OLIVEIRA, A. P. de; OLIVEIRA JUNIOR, D. L. de; AGUSTINI, B. C.; SILVA, G. A. da; TANABE, E. H.; RUIZ, D.; RANGEL, M. do C.; ZINI, C. A. |
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Afiliação: |
FRANCIELI MARTINS MAYER, Instituto de Química, Graduate Program in Chemistry, PPGQ, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves, 9500, Porto Alegre, RS 91501‑970, Brazil; ANA PAULA STELZER DE OLIVEIRA, Instituto de Química, Graduate Program in Chemistry, PPGQ, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves, 9500, Porto Alegre, RS 91501‑970, Brazil; DALIOMAR LOURENÇO DE OLIVEIRA JUNIOR, Departamento de Engenharia Química, Universidade Federal de Santa Maria, UFSM, Santa Maria, RS, Brazil; BRUNA CARLA AGUSTINI, CNPUV; GILDO ALMEIDA DA SILVA, CNPUV; EDUARDO HIROMITSU TANABE, Departamento de Engenharia Química, Universidade Federal de Santa Maria, UFSM, Santa Maria, RS, Brazil; DORIS RUIZ, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla160‑C, Concepción, Chile; MARIA DO CARMO RANGEL, Instituto Nacional de Ciência, Tecnologia e Inovação em Materiais Complexos Funcionais (Inomat), Campinas, São Paulo, Brazil; CLAUDIA ALCARAZ ZINI, Instituto de Química, Graduate Program in Chemistry, PPGQ, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves, 9500, Porto Alegre, RS 91501‑970, Brazil. |
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Título: |
Influence of nickel modified beta zeolite in the production of BTEX during analytical pyrolysis of medium-density fiberboard (MDF). |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Waste and Biomass Valorization, online Oct. 2021. |
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DOI: |
https://doi.org/10.1007/s12649-021-01593-w |
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Idioma: |
Inglês |
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Conteúdo: |
Production of high added value chemicals such as BTEX by means of catalytic fast pyrolysis of MDF residues is a promising and environmentally friendly alternative to fossil fuels, as MDF is abundantly produced worldwide. Generation of toxic compounds during MDF pyrolyses was minimized with pre-treatments with yeasts or hot water resulting in a maximum removal of 87.9% of nitrogen compounds when water was used at 80 °C, for 3 h. Nickel-modified beta zeolites with 3 (Ni3B-H) and 5 wt% of nickel (Ni5B-H) were more efficient for the production of BTEX compounds (Ni3B-H: 39.35% and Ni5B-H: 38.65%) and reduction of polyaromatic hydrocarbons (Ni3B-H: 11.12% and Ni5B-H: 15.93%) when compared to pure beta zeolite. Non-catalytic pyrolysis resulted only in oxygenated compounds. These findings were related to the changes of the crystallographic sites of aluminum and then on acidic sites, as well as to the production of a bifunctional catalyst during reactions. |
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Palavras-Chave: |
BTEX; Catalytic pyrolysis; Medium-density fiberboard; Nickel-modified beta zeolite. |
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Thesaurus Nal: |
Gas chromatography; Mass spectrometry. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/228796/1/Mayer2021-Article-InfluenceOfNickelModifiedBetaZ.pdf
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Marc: |
LEADER 01923naa a2200301 a 4500
001 2137378
005 2021-12-09
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s12649-021-01593-w$2DOI
100 1 $aMAYER, F. M.
245 $aInfluence of nickel modified beta zeolite in the production of BTEX during analytical pyrolysis of medium-density fiberboard (MDF).$h[electronic resource]
260 $c2021
520 $aProduction of high added value chemicals such as BTEX by means of catalytic fast pyrolysis of MDF residues is a promising and environmentally friendly alternative to fossil fuels, as MDF is abundantly produced worldwide. Generation of toxic compounds during MDF pyrolyses was minimized with pre-treatments with yeasts or hot water resulting in a maximum removal of 87.9% of nitrogen compounds when water was used at 80 °C, for 3 h. Nickel-modified beta zeolites with 3 (Ni3B-H) and 5 wt% of nickel (Ni5B-H) were more efficient for the production of BTEX compounds (Ni3B-H: 39.35% and Ni5B-H: 38.65%) and reduction of polyaromatic hydrocarbons (Ni3B-H: 11.12% and Ni5B-H: 15.93%) when compared to pure beta zeolite. Non-catalytic pyrolysis resulted only in oxygenated compounds. These findings were related to the changes of the crystallographic sites of aluminum and then on acidic sites, as well as to the production of a bifunctional catalyst during reactions.
650 $aGas chromatography
650 $aMass spectrometry
653 $aBTEX
653 $aCatalytic pyrolysis
653 $aMedium-density fiberboard
653 $aNickel-modified beta zeolite
700 1 $aOLIVEIRA, A. P. de
700 1 $aOLIVEIRA JUNIOR, D. L. de
700 1 $aAGUSTINI, B. C.
700 1 $aSILVA, G. A. da
700 1 $aTANABE, E. H.
700 1 $aRUIZ, D.
700 1 $aRANGEL, M. do C.
700 1 $aZINI, C. A.
773 $tWaste and Biomass Valorization, online Oct. 2021.
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Registro original: |
Embrapa Uva e Vinho (CNPUV) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
16/02/2016 |
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Data da última atualização: |
08/03/2016 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SILVA, R. O.; BARIONI, L. G.; HALL, J. A. J.; MATSUURA, M. I. da S. F.; ALBERTINI, T. Z.; FERNANDES, F. A.; MORAN, D. |
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Afiliação: |
R. O. SILVA, School of Mathematics, The University of Edinburgh, Mayfield Road, Edinburgh, EH9 3JZ, Scotland, United Kingdom; LUIS GUSTAVO BARIONI, CNPTIA; J. A. J. HALL, School of Mathematics, The University of Edinburgh, Mayfield Road, Edinburgh, EH9 3JZ, Scotland, United Kingdom; MARILIA IEDA DA S F MATSUURA, CNPMA; T. Z. ALBERTINI, ESALQ/USP; FERNANDO ANTONIO FERNANDES, CPAP; D. MORAN, Research Division, SRUC, West Mains Road, Edinburgh, EH9 3JG, Scotland, United Kingdom. |
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Título: |
Emissions mitigation by sustainable intensification in Brazilian livestock production. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: CLIMATE-SMART AGRICULTURE CONFERENCE 2015, Montpellier. Global Sience Conference: parallel session L2 Climate-smart strategies. Montpellier: CIRAD; INRA; IRD; Agropolis International; Wageningen UR; CGIAR; University of California; FAO; Agreenium; GFAR, 2015. N. 147. |
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Páginas: |
249 |
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Idioma: |
Inglês |
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Conteúdo: |
Reduced global meat consumption coupled with improved production efficiency is increasingly advanced as part of a sustainable agricultural intensification agenda to reduce harmful external costs, particularly direct and indirect greenhouse gas emissions. We show that depending on spatial and temporal factors, reduced consumption may not offer the anticipated emission reductions. Ruminant livestock is specifically implicated as a major cause of agricultural externalities in terms of greenhouse gas (GHG) emissions: direct (CH4 and N2O) and indirect (CO2 from land use change). However a counter-argument suggests that grass-fed beef systems can have significantly lower emissions when accounting for atmospheric CO2 uptake by deep-root grasses promoting soil carbon storage. We analyse the sensitivity of total GHG emissions in response to demand variations. The analysis employs a bottom-up linear programming model that simulates beef production, subject to demand and pasture area scenarios. The model optimises resources allocation, including the adjustment of pasture intensification levels according to bioeconomic parameters and estimates GHG emissions - including changes in soil organic carbon stocks. Focusing on the Brazilian Cerrado, we develop scenarios that show emissions actually increasing as a result of reduced demand, which increases the likelihood of carbon release from degraded pastures. Our results show if demand is reduced by 10%, 20% or 30% relative to baseline projections by 2030, emissions increase by 4%, 7% and 12%, respectively. But if demand increases 10%, 20% or 30% by 2030, emissions decrease by 5%, 8% and 13%, respectively. Increasing production to meet demand provides an incentive for pasture intensification through restoration practices (combined pasture improvement and/or feedlot finishing), and the resulting emission reductions offset those from increased animal numbers. The findings are a caveat to calls for reduced meat consumption and are a potential model for the management of other savannahs MenosReduced global meat consumption coupled with improved production efficiency is increasingly advanced as part of a sustainable agricultural intensification agenda to reduce harmful external costs, particularly direct and indirect greenhouse gas emissions. We show that depending on spatial and temporal factors, reduced consumption may not offer the anticipated emission reductions. Ruminant livestock is specifically implicated as a major cause of agricultural externalities in terms of greenhouse gas (GHG) emissions: direct (CH4 and N2O) and indirect (CO2 from land use change). However a counter-argument suggests that grass-fed beef systems can have significantly lower emissions when accounting for atmospheric CO2 uptake by deep-root grasses promoting soil carbon storage. We analyse the sensitivity of total GHG emissions in response to demand variations. The analysis employs a bottom-up linear programming model that simulates beef production, subject to demand and pasture area scenarios. The model optimises resources allocation, including the adjustment of pasture intensification levels according to bioeconomic parameters and estimates GHG emissions - including changes in soil organic carbon stocks. Focusing on the Brazilian Cerrado, we develop scenarios that show emissions actually increasing as a result of reduced demand, which increases the likelihood of carbon release from degraded pastures. Our results show if demand is reduced by 10%, 20% or 30% relative to baseline projec... Mostrar Tudo |
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Palavras-Chave: |
Mitigation. |
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Thesaurus NAL: |
Emissions. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/139096/1/2015RA-032.pdf
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Marc: |
LEADER 02906nam a2200217 a 4500
001 2037105
005 2016-03-08
008 2015 bl uuuu u00u1 u #d
100 1 $aSILVA, R. O.
245 $aEmissions mitigation by sustainable intensification in Brazilian livestock production.$h[electronic resource]
260 $aIn: CLIMATE-SMART AGRICULTURE CONFERENCE 2015, Montpellier. Global Sience Conference: parallel session L2 Climate-smart strategies. Montpellier: CIRAD; INRA; IRD; Agropolis International; Wageningen UR; CGIAR; University of California; FAO; Agreenium; GFAR, 2015. N. 147.$c2015
300 $a249
520 $aReduced global meat consumption coupled with improved production efficiency is increasingly advanced as part of a sustainable agricultural intensification agenda to reduce harmful external costs, particularly direct and indirect greenhouse gas emissions. We show that depending on spatial and temporal factors, reduced consumption may not offer the anticipated emission reductions. Ruminant livestock is specifically implicated as a major cause of agricultural externalities in terms of greenhouse gas (GHG) emissions: direct (CH4 and N2O) and indirect (CO2 from land use change). However a counter-argument suggests that grass-fed beef systems can have significantly lower emissions when accounting for atmospheric CO2 uptake by deep-root grasses promoting soil carbon storage. We analyse the sensitivity of total GHG emissions in response to demand variations. The analysis employs a bottom-up linear programming model that simulates beef production, subject to demand and pasture area scenarios. The model optimises resources allocation, including the adjustment of pasture intensification levels according to bioeconomic parameters and estimates GHG emissions - including changes in soil organic carbon stocks. Focusing on the Brazilian Cerrado, we develop scenarios that show emissions actually increasing as a result of reduced demand, which increases the likelihood of carbon release from degraded pastures. Our results show if demand is reduced by 10%, 20% or 30% relative to baseline projections by 2030, emissions increase by 4%, 7% and 12%, respectively. But if demand increases 10%, 20% or 30% by 2030, emissions decrease by 5%, 8% and 13%, respectively. Increasing production to meet demand provides an incentive for pasture intensification through restoration practices (combined pasture improvement and/or feedlot finishing), and the resulting emission reductions offset those from increased animal numbers. The findings are a caveat to calls for reduced meat consumption and are a potential model for the management of other savannahs
650 $aEmissions
653 $aMitigation
700 1 $aBARIONI, L. G.
700 1 $aHALL, J. A. J.
700 1 $aMATSUURA, M. I. da S. F.
700 1 $aALBERTINI, T. Z.
700 1 $aFERNANDES, F. A.
700 1 $aMORAN, D.
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Embrapa Meio Ambiente (CNPMA) |
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