Low temperature conversion (LTC) – An alternative method to treat sludge generated in an industrial wastewater treatment station – Batch and continuous process comparison

Vieira, Glaúcia Eliza Gama; Romeiro, Gilberto A.; Sella, Sílvia M.; Damasceno, Raimundo N.; Pereira, Roberto Guimarães

doi:10.1016/j.biortech.2008.08.040

Cited by 28 publications

(26 citation statements)

References 5 publications

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“…Depending on the biomass type used in the process, oil and a char are obtained in variable proportions, besides water and gas. The oil is sent to studies about the viability of its application as fuel or other possible commercial application (as greases, lubricants, resins etc) whereas the char is sent to studies of its activation so that it can be used as active char, besides the possible direct use as energy (Bayer & Kutubuddin, 1988Lutz et al, 1998Lutz et al, , 2000Romeiro et al, 1999Romeiro et al, , 2000Vieira et al, 2009). …”

Section: Low Temperature Conversion Processmentioning

confidence: 99%

“…The higher heating value (in the order of 28000 kJ/kg) is higher than methanol (Barnwal & Sharma, 2005) and presents a good energy potential for use. Table 3 summarizes the characterization of LTC products using: Eichhornia crassipes as biomass (present study); sugar-cane by-products one (Lutz et al, 1998); Brazilian municipal and industrial sludge and sludge generated in an industrial wastewater treatment station (Vieira et al, 2009). As we can see, we obtain more char using Eichhornia crassipes as biomass than using bagasse and filter mud.…”

Section: Char and Oil Characterizationmentioning

confidence: 99%

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Characterization of Char and Oil From Low Temperature Conversion of Biomass from Eichhornia Crassipes

Pereira¹,

Romeiro²,

Damasceno³

et al. 2011

IJC

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The present work describes an experimental investigation concerning the characterization of char and oil obtained through Low Temperature Conversion (LTC) process applied to biomass of Eichhornia crassipes. Basic analysis (heating values, elemental analysis, total ash and moisture content) of char and oil are reported. The preliminary characteristics of the oil and the char obtained indicate the viability of their use as, for instance, in the generation of energy.

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Section: Low Temperature Conversion Processmentioning

confidence: 99%

Section: Char and Oil Characterizationmentioning

confidence: 99%

Characterization of Char and Oil From Low Temperature Conversion of Biomass from Eichhornia Crassipes

Pereira¹,

Romeiro²,

Damasceno³

et al. 2011

IJC

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“…O carvão também pode ser empregado na remoção de metais pesados e substâncias orgânicas tóxicas de efluentes, substituindo o carvão ativado comercial. Além disso, podem ser utilizados em caldeiras e fornos tubulares, fornos comerciais (pizzaria, padaria, dentre outros) e uso doméstico (lareiras e churrasqueiras) (VIEIRA et al, 2009;PEDROZA et al, 2014).…”

Section: Introductionunclassified

Aproveitamento Energético De Resíduos Sólidos Urbanos Em Processo De Pirólise

Pedroxa

Gomes²,

Paz³

et al. 2017

R. bras. Ener. Renov.

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Esse trabalho tem como objetivo apresentar as características físicas e químicas de Resíduos Sólidos Urbanos (RSU) e avaliar o seu aproveitamento através do processo de pirólise, através de uma revisão da literatura com a finalidade de ser obter um retrato dos mesmos como uma fonte de possibilidades para o desenvolvimento de rotas térmicas de obtenção de produtos químicos. Os RSU são constituídos principalmente de papel, papelão, plásticos, vidros, metais, têxteis, restos de comidas e materiais inertes. A pirólise é um processo endotérmico realizado na ausência de oxigênio, gerando como produtos finais bio-óleo, gases e finos de carvão. Esse processo térmico pode ser influenciado por diversos fatores relacionados às características da biomassa e condições de operação do reator. O bio-óleo apresenta alto poder calorífico e ausência de compostos sulfurados, o que aponta para a possibilidade do seu uso como biocombustível. A fração gasosa obtida através da pirólise de RSU possui alto poder calorífico e é composta por hidrocarbonetos, hidrogênio, CO e CO2. O carvão também pode ser empregado na remoção de metais pesados e substâncias orgânicas de efluentes industriais, substituindo o carvão ativado comercial. Reatores de pirólise de RSU em escala real devem apresentar um sistema de purificação do gás de síntese como forma de evitar a contaminação ambiental através de compostos presentes na fração gasosa.

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“…Alternatively, thermal treatments such as gasification and pyrolysis have proven to be effective to obtain biogas, bio-oil and char from industrial sludge [4] [5]. According to Vieira et al [6], bio-oil obtained by low-temperature pyrolysis of oil refinery sludge is useful for energy production purposes.…”

Section: Introductionmentioning

confidence: 99%

Thermogravimetric monitoring of oil refinery sludge

Barneto

Moltó

Ariza

et al. 2014

Journal of Analytical and Applied Pyrolysis

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The present work has two dimensions: analytical and environmental. On the one hand we proved that thermogravimetric analysis can be used to perform fast characterization of oil refinery sludge. To this end, thermogravimetric curves were deconvoluted by using autocatalytic kinetics to take into account acceleratory phases in a thermal degradation performed in oxygen-containing atmosphere or at high heating rates. Based on thermogravimetric results, oil refinery sludge was modeled in terms of various fractions (pseudo-components) which degrade as major oil cuts. On the other hand, as an alternative to landfill, we have seen that Soxhlet extraction allows recovery almost half of the weight of sludge as a mixture of hydrocarbons, similar to gas-oil, which burns without residue. This ensures both, waste inerting and significant reduction in sludge volume.

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Low temperature conversion (LTC) – An alternative method to treat sludge generated in an industrial wastewater treatment station – Batch and continuous process comparison

Cited by 28 publications

References 5 publications

Characterization of Char and Oil From Low Temperature Conversion of Biomass from Eichhornia Crassipes

Characterization of Char and Oil From Low Temperature Conversion of Biomass from Eichhornia Crassipes

Aproveitamento Energético De Resíduos Sólidos Urbanos Em Processo De Pirólise

Thermogravimetric monitoring of oil refinery sludge

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