Modified oil palm leaves adsorbent with enhanced hydrophobicity for crude oil removal

Sidik, Siti Munirah; Jalil, Aishah Abdul; Triwahyono, Sugeng; Adam, Siti Hazirah; Satar, Mohammad Azrul Hisham; Hameed, B.H.

doi:10.1016/j.cej.2012.06.132

Cited by 191 publications

(110 citation statements)

References 44 publications

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“…So it is important to measure the specific surface area to evaluate the activity and adsorption capacity of materials. (e.g., catalysis and adsorbent) [11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Overview on the Effect of Particle Size on the Performance of Wood Based Adsorbent

Pn¹,

Cp²

2016

J Chem Eng Process Technol

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Oil spill is common to oil producing nations of the world. Various researches have been carried out. However, most of the materials used for oil spill clean-up are non-biodegradable and require expensive treatment to become an adsorbent. In this study, adsorptive capacities of cost effective raw hard and semi-hardwood particle sizes were investigated and compared. Semi-hard wood of various particle sizes was found to have better adsorptive capacities. Maximum uptake of the oil by both adsorbents occurred at 180 and 240 minutes for all the observations made. The maximum uptake also occurred in smaller particle sizes for all results. This study recommends that further research be done on the use of modified smaller particle size of semi-hardwood sawdust so as to increase its potential as a low-cost adsorbent in oil spill clean-up.

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“…So it is important to measure the specific surface area to evaluate the activity and adsorption capacity of materials. (e.g., catalysis and adsorbent) [11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Overview on the Effect of Particle Size on the Performance of Wood Based Adsorbent

Pn¹,

Cp²

2016

J Chem Eng Process Technol

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“…O que se pode verificar é que com o aumento da temperatura, de 25 °C para 35 °C o percentual de remoção de óleo diminuiu de 89% para 75%. Esse resultado está de acordo o que era esperado, pois a adsorção é um processo exotérmico (Sidik, et al, 2012). O tempo de equilíbrio foi mantido em 180 min.…”

Section: Resultsunclassified

“…No pH 3, foi possível verificar até um pequeno aumento da adsorção (91,54%). Dessa forma, pode-se dizer que os íons H + e OH -não influenciaram no comportamento do adsorvente, competindo com os adsorvatos e nem alterando as gotas de óleo presentes na emulsão através de coalescência ou saponificação (Sidik, et al, 2012).…”

Section: Resultsunclassified

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Aplicação De Carvão Ativado No Tratamento Da Água Produzida Sintética Na Indústria Petroquímica

Oliveira¹,

Filho²,

Souza³

et al. 2015

Anais Do XX Congresso Brasileiro De Engenharia Química

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RESUMO -A remoção de óleo da água produzida é um dos grandes desafios na exploração de petróleo, especialmente em plataformas offshore. O elevado custo de operação aliado ao grande volume de água utilizado requer que sejam utilizados processos com elevada eficiência. Os exíguos espaços dos barcos e plataformas são importantes na definição da técnica utilizada. Neste contexto, a adsorção tem se adequado a essas características. Neste trabalho, foi investigada a eficiência de remoção de óleo diesel da água de emulsões sintéticas óleo/água pelo adsorvente carvão ativado. O adsorvente foi caracterizado e determinado os parâmetros cinéticos e termodinâmicos no processo de adsorção em batelada. A influência da temperatura, concentração inicial de óleo, salinidade e pH também foram avaliados. O carvão ativado removeu óleo rapidamente com eficiência de 89% a 25°C. Além disso, análises de Ressonância Magnética Nuclear de hidrogênio revelaram as classes de compostos removidas nos primeiros minutos. INTRODUÇÃO Água produzidaOs processos de exploração e produção de petróleo onshore e offshore geram petróleo, gás natural e uma grande quantidade de água, conhecida tecnicamente como água produzida, água de processo ou água de produção. O volume de água produzida se aproxima de 80%, alcançando em alguns casos até 90% do volume total obtido de petróleo (Ahmadun et al., 2009).O óleo é um dos constituintes da água produzida e pode ser encontrado na forma livre, dispersa ou emulsificada, de acordo com o tamanho das partículas. O óleo disperso é composto por hidrocarbonetos poliaromáticos (HPAs) e hidrocarbonetos alifáticos saturados e insaturados de cadeia longa (alcanos, alcenos e alcinos) e é encontrado na forma de pequenas gotas. O óleo dissolvido tem em sua composição hidrocarbonetos monoaromáticos benzeno, tolueno, etilbenzeno, xileno (BTEX) e naftaleno, fenantreno e dibenzotiofeno (NFD). Além dos compostos orgânicos, na água produzida estão presentes sais inorgânicos, metais pesados, sólidos, minerais radioativos e micro-organismos. Esses contaminantes podem exceder os limites permissíveis estabelecidos pela legislação ambiental Área temática: Engenharia das Separações e Termodinâmica 1

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“…These materials are responsible for most of the physical and chemical properties of POME, such as the natural oleophilicity and hydrophilicity (Hassan et al 2013;Teli and Valia 2013). The high oil wetting properties or oleophilicty of the solid particles in POME result from the presence of the nonpolar groups on the surface of solid particles, which may induce the lower surface energy and increase the attraction of oil molecules (Shinoj et al 2011;Sidik et al 2012;Sahad et al 2014). Owing to the natural oil sorption capacities of solid particles contained in POME, the oil droplets were absorbed into the solid particles and settled when the sample was left for 60 min.…”

Section: Contact Angle Measurementmentioning

confidence: 99%

Presence of Residual Oil in Relation to Solid Particle Distribution in Palm Oil Mill Effluent

Sharifudin¹,

Sulaiman²,

Mokhtar³

et al. 2015

BioResources

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The production of palm oil requires a large amount of water, which subsequently turns into wastewater known as palm oil mill effluent (POME). Because of its high organic content, there has been debate over how to utilize POME for oil recovery. POME is usually mainly comprised of water (95 to 96%), total solids (4 to 5%), suspended solids (2 to 4%), and oil (0.6 to 0.7%). The lignocellulosic particles in POME are highly oleophilic and capable of absorbing oil. Therefore, the objective of this study was to understand the presence of residual oil and try to relate with the oil loss in POME and to identify the solid particles in POME and their correlations. Microscopic observations showed that most of the oil droplets available in POME were less than 100 µm in size. If given the opportunity to settle, the highest quantity of oil droplets and solid particles was in the bottom layer, followed by the middle layer, and lastly the upper layer. In cases where the contact angle of water was less than 45° on POME solids, the absorption rate was 0.11 ± 0.03 µL/s and 0.09 ± 0.01 µL/s, respectively. This study concluded that the oil losses in POME were partly due to the absorption of oil by the fibers.

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Modified oil palm leaves adsorbent with enhanced hydrophobicity for crude oil removal

Cited by 191 publications

References 44 publications

Overview on the Effect of Particle Size on the Performance of Wood Based Adsorbent

Overview on the Effect of Particle Size on the Performance of Wood Based Adsorbent

Aplicação De Carvão Ativado No Tratamento Da Água Produzida Sintética Na Indústria Petroquímica

Presence of Residual Oil in Relation to Solid Particle Distribution in Palm Oil Mill Effluent

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