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Registro Completo |
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Biblioteca(s): |
Embrapa Amapá; Embrapa Unidades Centrais. |
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Data corrente: |
27/01/2012 |
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Data da última atualização: |
17/03/2015 |
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Autoria: |
EMBRAPA INSTRUMENTAÇÃO AGROPECUÁRIA. |
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Título: |
Embrapa Instrumentação Agropecuária. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
São Carlos, SP, 2009. |
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Idioma: |
Português |
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Thesagro: |
Instituição de Pesquisa. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00313nam a2200109 a 4500
001 1925631
005 2015-03-17
008 2009 bl uuuu u0uu1 u #d
100 1 $aEMBRAPA INSTRUMENTAÇÃO AGROPECUÁRIA
245 $aEmbrapa Instrumentação Agropecuária.
260 $aSão Carlos, SP$c2009
650 $aInstituição de Pesquisa
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
08/11/2017 |
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Data da última atualização: |
08/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ANTES, F. G.; DIEHL, L. de O.; PEREIRA, J. S. F.; GUIMARÃES, R. C. L.; GUARNIERI, R. A.; FERREIRA, B. M. S.; FLORES, E. M. M. |
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Afiliação: |
FABIANE GOLDSCHMIDT ANTES, CNPSA; LIANGE DE OLIVEIRA DIEHL, CNPT; JULIANA S. F. PEREIRA, UFRGS/Departamento de Química Inorgânica; REGINA C. L. GUIMARÃES, CENPES/PETROBRAS; RICARDO A. GUARNIERI, UFSM/Departamento de Química; BIANCA M. S. FERREIRA, CENPES/PETROBRAS; ÉRICO M. M. FLORES, UFSM/Departamento de Química. |
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Título: |
Effect of ultrasonic frequency on separation of water from heavy crude oil emulsion using ultrasonic baths. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Ultrasonics Sonochemistry, v. 35, p. 541 - 546, 2017. |
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DOI: |
10.1016/j.ultsonch.2016.03.031 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: In this work, a comprehensive study was performed for the evaluation of ultrasound (US) frequency for demulsification of crude oil emulsions. Experiments were performed using ultrasonic baths operating at the following frequencies: 25, 35, 45, 130, 582, 862 and 1146 kHz. Synthetic water-in-oil emulsions with 12%, 35% and 50% of water and medians of droplet size distribution (DSD, D(0.5)) of 5, 10 and 25 lm were prepared using a heavy crude oil (API density of 19). Crude oil demulsification was achieved at frequencies in the range of 25?45 kHz for all tested emulsions. When frequencies higher than 45 kHz were applied, no changes in the characteristics of the crude oil emulsions were observed. Demulsification effi- ciencies of about 65% were achieved at a frequency of 45 kHz after 15 min of US application (emulsions with original water content of 50% and D(0.5) = 10 lm). An important aspect is that no addition of chemical demulsifiers was performed, and the demulsification efficiency was considered high, taking into account that the results were obtained using a non-conventional crude oil. Contrary to the normal application of low-frequency US that has been used for emulsification, the proposed approach seems to be a promising technology for water removal from crude oil emulsions |
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Palavras-Chave: |
Demulsão; Remoção de água. |
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Thesagro: |
Água; Emulsão; Estado físico; Óleo; Petróleo; Ultrassom. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02183naa a2200301 a 4500
001 2079262
005 2017-11-08
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1016/j.ultsonch.2016.03.031$2DOI
100 1 $aANTES, F. G.
245 $aEffect of ultrasonic frequency on separation of water from heavy crude oil emulsion using ultrasonic baths.$h[electronic resource]
260 $c2017
520 $aAbstract: In this work, a comprehensive study was performed for the evaluation of ultrasound (US) frequency for demulsification of crude oil emulsions. Experiments were performed using ultrasonic baths operating at the following frequencies: 25, 35, 45, 130, 582, 862 and 1146 kHz. Synthetic water-in-oil emulsions with 12%, 35% and 50% of water and medians of droplet size distribution (DSD, D(0.5)) of 5, 10 and 25 lm were prepared using a heavy crude oil (API density of 19). Crude oil demulsification was achieved at frequencies in the range of 25?45 kHz for all tested emulsions. When frequencies higher than 45 kHz were applied, no changes in the characteristics of the crude oil emulsions were observed. Demulsification effi- ciencies of about 65% were achieved at a frequency of 45 kHz after 15 min of US application (emulsions with original water content of 50% and D(0.5) = 10 lm). An important aspect is that no addition of chemical demulsifiers was performed, and the demulsification efficiency was considered high, taking into account that the results were obtained using a non-conventional crude oil. Contrary to the normal application of low-frequency US that has been used for emulsification, the proposed approach seems to be a promising technology for water removal from crude oil emulsions
650 $aÁgua
650 $aEmulsão
650 $aEstado físico
650 $aÓleo
650 $aPetróleo
650 $aUltrassom
653 $aDemulsão
653 $aRemoção de água
700 1 $aDIEHL, L. de O.
700 1 $aPEREIRA, J. S. F.
700 1 $aGUIMARÃES, R. C. L.
700 1 $aGUARNIERI, R. A.
700 1 $aFERREIRA, B. M. S.
700 1 $aFLORES, E. M. M.
773 $tUltrasonics Sonochemistry$gv. 35, p. 541 - 546, 2017.
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